近年来，在位于用户的眼睛前方的现实的风景等外部场景上叠加地显示图像(影像)的技术(AR(Augmented Reality：增强现实)技术)、将与位于用户的眼睛前方的现实不同的现实显示为图像(影像)的技术(VR(Virtual Reality：虚拟现实)技术)受到了关注。作为利用这些技术的产品之一，例如，可举出显示三维图像(三维影像)的头戴式显示器(HMD：Head Mounted Display)。头戴式显示器被佩戴于用户的头部来使用。In recent years, a technology (AR (Augmented Reality: Augmented Reality) technology) that superimposes and displays an image (video) on an external scene such as a real landscape in front of the user's eyes, and a technology (VR (Virtual Reality: Virtual Reality) technology) that displays a reality different from the reality in front of the user's eyes as an image (Video) has attracted attention. As one of the products using these technologies, for example, a head mounted display (HMD: Head Mounted Display) that displays a three-dimensional image (three-dimensional video) is mentioned. The head-mounted display is worn on the user's head for use.

例如，在专利文献1中提出了与具有集成成像光学器件的可佩戴3D增强现实显示器有关的技术。For example, in Patent Document 1, a technology related to a wearable 3D augmented reality display with integrated imaging optics is proposed.

另外，例如，在专利文献2中提出了与在双眼分别具有光场投影机的头戴式光场显示系统(HMD)有关的技术。Also, for example, Patent Document 2 proposes a technique related to a head-mounted light field display (HMD) having light field projectors for both eyes.

现有技术文献prior art literature

专利文献patent documents

专利文献1：日本特表2017-515162号公报Patent Document 1: Japanese PCT Publication No. 2017-515162

专利文献2：日本特表2015-521298号公报Patent Document 2: Japanese PCT Publication No. 2015-521298

发明内容Contents of the invention

然而，在专利文献1以及2提出的技术中，可能无法实现沉浸感的进一步提高、渲染成本的进一步抑制、传输成本的进一步抑制。However, in the technologies proposed in Patent Documents 1 and 2, further improvement of immersion, further reduction of rendering cost, and further reduction of transmission cost may not be achieved.

因此，本技术是鉴于这样的状况而完成的，其主要目的在于，提供能够实现沉浸感的进一步提高、实现渲染成本的进一步抑制、实现传输成本的进一步抑制的图像显示装置以及具备该图像显示装置的显示装置。Therefore, the present technology was developed in view of such a situation, and its main purpose is to provide an image display device capable of further improving immersion, further reducing rendering costs, and further reducing transmission costs, and a display device including the image display device.

为达到上述目的，本发明人等进行了深入研究，结果出人意料地成功实现沉浸感的进一步提高、实现渲染成本的进一步抑制、实现传输成本的进一步抑制，完成了本技术。In order to achieve the above purpose, the present inventors conducted in-depth research, and as a result, unexpectedly succeeded in further improving the sense of immersion, realizing further suppression of rendering cost, further realizing further suppression of transmission cost, and completed this technology.

即，作为第一方面，本技术提供一种图像显示装置，That is, as a first aspect, the present technology provides an image display device,

针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜，A two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and an eyepiece are respectively provided for both eyes of the user,

从该二维图像形成装置射出的第1图像光以及从该三维图像形成装置射出的第2图像光依次经由该分束器和该目镜而分别入射到该用户的双眼。The first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

在本技术的第1方面的图像显示装置中，In the image display device according to the first aspect of the present technology,

所述分束器可以为半反射镜。The beam splitter may be a half mirror.

由从所述二维图像形成装置射出的所述第1图像光形成的二维图像和由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以重叠，该重叠的图像可以被所述用户视觉识别。The two-dimensional image formed by the first image light emitted from the two-dimensional image forming device and the three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be superimposed, and the superimposed image may be visually recognized by the user.

由从所述二维图像形成装置射出的所述第1图像光形成的二维图像可以显示在所述用户的视野的大致整个区域，The two-dimensional image formed by the first image light emitted from the two-dimensional image forming device can be displayed on substantially the entire area of the user's field of view,

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以显示在所述用户的视野的一部分。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be displayed on a part of the field of view of the user.

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以显示在所述用户的视野的大致中心部。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be displayed substantially in the center of the user's field of view.

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以在所述用户的视野中用矩形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be displayed in a rectangular range in the field of view of the user.

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以在所述用户的视野中用圆形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be displayed in a circular range in the field of view of the user.

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像可以在所述用户的视野中用椭圆形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device may be displayed in an elliptical range in the field of view of the user.

所述三维图像形成装置可以使用集成成像方式形成三维图像。The three-dimensional image forming device can form a three-dimensional image using an integrated imaging method.

所述三维图像形成装置可以使用张量显示方式形成三维图像。The three-dimensional image forming device can form a three-dimensional image using a tensor display method.

所述三维图像形成装置可以使用超多视角方式形成三维图像。The three-dimensional image forming device can form a three-dimensional image using a super multi-view method.

所述三维图像形成装置可以使用全息方式形成三维图像。The three-dimensional image forming device may form a three-dimensional image using holography.

所述三维图像形成装置可以通过在空间上多层化的像面形成三维图像。The three-dimensional image forming device can form a three-dimensional image with spatially multi-layered image planes.

所述三维图像形成装置可以通过在时间上多层化的像面形成三维图像。The three-dimensional image forming apparatus can form a three-dimensional image using temporally multi-layered image planes.

本技术的第1方面的图像显示装置可以具备包含所述分束器和所述目镜的自由曲面透镜。The image display device according to the first aspect of the present technology may include a free-form surface lens including the beam splitter and the eyepiece.

本技术的第1方面的图像显示装置还可以具备视线检测装置。The image display device according to the first aspect of the present technology may further include a line-of-sight detection device.

作为第2方面，本技术提供一种显示装置，具备：As a second aspect, the present technology provides a display device comprising:

框架，佩戴于用户的头部；以及a frame, worn on the user's head; and

图像显示装置，安装于该框架，image display device mounted on the frame,

该图像显示装置为本技术的第1方面的图像显示装置。This image display device is the image display device according to the first aspect of the present technology.

根据本技术，能够实现沉浸感的进一步提高、渲染成本的进一步抑制、传输成本的进一步抑制。此外，这里记载的效果不是限制性的，可以是在本公开中记载的任何效果。According to the present technology, further improvement of immersion, further reduction of rendering cost, and further reduction of transmission cost can be realized. In addition, the effects described here are not limitative, and may be any effects described in the present disclosure.

附图说明Description of drawings

图1是示出应用本技术的第1实施方式的图像显示装置的结构例的图。FIG. 1 is a diagram illustrating a configuration example of an image display device according to a first embodiment of the present technology.

图2是示出应用本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的一个例子的图。FIG. 2 is a diagram illustrating an example of a method for superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology.

图3是示出应用本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例1的图。3 is a diagram showing Modification 1 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology.

图4是示出应用本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例2的图。FIG. 4 is a diagram illustrating Modification 2 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology.

图5是示出应用本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例3的图。FIG. 5 is a diagram illustrating Modification 3 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology.

图6是示出应用本技术的第2实施方式的图像显示装置的结构例的图。FIG. 6 is a diagram illustrating a configuration example of an image display device according to a second embodiment of the present technology.

图7是示出应用本技术的第3实施方式的图像显示装置的结构例的图。FIG. 7 is a diagram illustrating a configuration example of an image display device according to a third embodiment to which the present technology is applied.

图8是示出应用本技术的第4实施方式的图像显示装置的结构例的图。FIG. 8 is a diagram illustrating a configuration example of an image display device according to a fourth embodiment of the present technology.

图9是示出应用本技术的第5实施方式的图像显示装置的结构例的图。FIG. 9 is a diagram illustrating a configuration example of an image display device according to a fifth embodiment of the present technology.

图10是示出应用本技术的第6实施方式的图像显示装置的结构例的图。FIG. 10 is a diagram illustrating a configuration example of an image display device according to a sixth embodiment to which the present technology is applied.

图11是示出应用本技术的第7实施方式的图像显示装置的结构例的图。FIG. 11 is a diagram illustrating a configuration example of an image display device according to a seventh embodiment of the present technology.

图12是示出应用本技术的第8实施方式的图像显示装置的结构例的图。FIG. 12 is a diagram showing a configuration example of an image display device according to an eighth embodiment to which the present technology is applied.

(附图标记说明)(Description of Reference Signs)

1(1-L、1-R)：集成成像方式的三维显示器(三维图像形成装置)；2(2-L、2-R)：二维显示器(二维图像形成装置)；3(3-L、3-R)：半反射镜(分束器)；4(4-L、4-R)：目镜；16(16-L、16-R)：张量显示方式的三维显示器(三维图像形成装置)；17(17-L、17-R)：超多视角方式的三维显示器(三维图像形成装置)；18(18-L、18-R)：全息方式的三维显示器(三维图像形成装置)；19(19-L、19-R)：多层化像面方式(采用空间多层像面的例子)的三维显示器(三维图像形成装置)；101(101-L、101-R)、102、106(106-L、106-R)、107(107-L、107-R)、108(108-L、108-R)、109(109-L、109-R)、110(110-L、110-R)、111(111-L、111-R)、112(112-L、112-R)：图像显示装置；411(411-L、411-R)：自由曲面透镜；500(500-L、500-R)：眼球；610(610-L、610-R)：多层化像面方式(采用时间多层像面的例子)的三维显示器(三维图像形成装置)；712(712-L、712-R)：视线检测装置。1 (1-L, 1-R): 3D display with integrated imaging (3D image forming device); 2 (2-L, 2-R): 2D display (2D image forming device); 3 (3-L, 3-R): half mirror (beam splitter); 4 (4-L, 4-R): eyepiece; 16 (16-L, 16-R): 3D display with tensor display (3D image forming device); Multi-view three-dimensional display (three-dimensional image forming device); 18 (18-L, 18-R): holographic three-dimensional display (three-dimensional image forming device); 19 (19-L, 19-R): three-dimensional display (three-dimensional image forming device) of multi-layered image plane method (example using spatial multi-layer image plane); 101 (101-L, 101-R), 102, 106 (106-L, 106-R), 107 (107 -L, 107-R), 108 (108-L, 108-R), 109 (109-L, 109-R), 110 (110-L, 110-R), 111 (111-L, 111-R), 112 (112-L, 112-R): image display device; 411 (411-L, 411-R): free-form surface lens; 50 0 (500-L, 500-R): eyeball; 610 (610-L, 610-R): a three-dimensional display (three-dimensional image forming device) of a multi-layered image plane method (an example using a temporal multi-layered image plane); 712 (712-L, 712-R): a line-of-sight detection device.

具体实施方式Detailed ways

以下说明用于实施本技术的优选的实施方式。以下说明的实施方式表示本技术的代表性实施方式的一个例子，不应据此对本技术的范围作出窄义解释。此外，只要没有特别说明，在附图中，“上”是指图中的上方向或上侧，“下”是指图中的下方向或下侧，“左”是指图中的左方向或左侧，“右”是指图中的右方向或右侧。另外，在使用附图的说明中，对于相同或者等同的要素或部件赋予相同的附图标记，省略重复的说明。Preferred embodiments for implementing the present technology will be described below. Embodiments described below are examples of representative embodiments of the present technology, and the scope of the present technology should not be construed in a narrow sense. In addition, unless otherwise specified, in the drawings, "upper" means the upper direction or the upper side in the figure, "lower" means the lower direction or the lower side in the figure, "left" means the left direction or the left side in the figure, and "right" means the right direction or the right side in the figure. In addition, in the description using the drawings, the same reference numerals are assigned to the same or equivalent elements or members, and overlapping descriptions are omitted.

此外，按以下顺序进行说明。In addition, description will be given in the following order.

1.本技术的概要1. Outline of this technology

2.第1实施方式(图像显示装置的例1)2. First Embodiment (Example 1 of Image Display Device)

3.第2实施方式(图像显示装置的例2)3. Second Embodiment (Example 2 of Image Display Device)

4.第3实施方式(图像显示装置的例3)4. Third Embodiment (Example 3 of Image Display Device)

5.第4实施方式(图像显示装置的例4)5. Fourth Embodiment (Example 4 of Image Display Device)

6.第5实施方式(图像显示装置的例5)6. Fifth Embodiment (Example 5 of Image Display Device)

7.第6实施方式(图像显示装置的例6)7. Sixth Embodiment (Example 6 of Image Display Device)

8.第7实施方式(图像显示装置的例7)8. Seventh Embodiment (Example 7 of Image Display Device)

9.第8实施方式(图像显示装置的例8)9. Eighth Embodiment (Example 8 of Image Display Device)

10.第9实施方式(显示装置的例1)10. Ninth Embodiment (Example 1 of Display Device)

＜1.本技术的概要＞<1. Outline of this technology>

首先，对本技术的概要进行说明。First, an outline of the present technology will be described.

本技术涉及呈现三维影像的图像显示装置以及具备该图像显示装置的显示装置(例如，可举出头戴式显示器(HMD：Head Mounted Display))。The present technology relates to an image display device that presents three-dimensional images, and a display device including the image display device (eg, a head mounted display (HMD: Head Mounted Display)).

头戴式显示器(HMD：Head Mounted Display)有时采用呈现双眼视差但不引发焦点调节作为深度感知的结构，在这种情况下，有时引起辐辏调节冲突(VAC：VergenceAccommodation Conflict)。VAC是辐辏角度对通过双眼视差呈现的图像发生反应，但焦点调节被固定在影像显示面的现象，成为晕3D、晕VR、视觉疲劳、头疼等生理不适、用户年龄的制约的主要原因等。A head-mounted display (HMD: Head Mounted Display) sometimes adopts a structure that exhibits binocular parallax but does not cause focus accommodation as depth perception, and in this case, sometimes causes a vergence accommodation conflict (VAC: VergenceAccommodation Conflict). VAC is a phenomenon in which the convergence angle responds to the image presented by binocular parallax, but the focus adjustment is fixed on the image display surface, and it becomes the main cause of physical discomfort such as 3D halo, VR halo, visual fatigue, headache, and user age restrictions.

例如，在技术例1以及技术例2中，作为解决VAC的HMD，可举出全息那样再现光波面的方法、光场那样再现光线的位置和角度的方法。然而，这些方法为了附加深度信息，需要再现相位信息、角度信息，有时导致渲染成本、传输成本增大。结果，常见将分辨率抑制得低或将视野限制地窄等妥协，阻碍沉浸感。For example, in Technical Example 1 and Technical Example 2, HMDs that solve VAC include a method of reproducing an optical wavefront like a hologram, and a method of reproducing the position and angle of a light beam like a light field. However, these methods need to reproduce phase information and angle information in order to add depth information, which may lead to increased rendering costs and transmission costs. As a result, compromises such as suppressing the resolution to a low level or restricting the field of view to a narrow field of view are common, hindering immersion.

例如，作为技术例3，可举出使用由显示器和微透镜阵列构成的集成成像方式的光场来显示具有深度信息的影像的头戴式显示器(HMD：Head Mounted Display)。在该技术例3中，使由光场生成的影像和透射了光学系统的现实世界重叠而向用户呈现增强现实。然而，在该技术例3中，为了高分辨率地显示影像，必须将视野限制在中心附近的有限的区域，难以获得沉浸感。For example, as Technical Example 3, a head-mounted display (HMD: Head Mounted Display) that displays an image with depth information using an integrated imaging light field composed of a display and a microlens array can be cited. In this technical example 3, the augmented reality is presented to the user by superimposing the image generated by the light field on the real world transmitted through the optical system. However, in Technical Example 3, in order to display images with high resolution, the field of view must be limited to a limited area near the center, making it difficult to obtain a sense of immersion.

另外，例如，作为技术例4，与上述技术例3同样地，可举出使用集成成像方式的光场显示具有深度信息的影像的头戴式显示器(HMD：Head Mounted Display)。在该技术例4中，生成光场的显示器由作为微小的光源的LED发射极构成，使排列有LED发射极的显示器机械地移动，与显示影像同步，从而能够通过时间分割遍及全部视野地生成高分辨率的光场。然而，在该技术例4中，为了遍及视野整个区域地显示高分辨率的影像，需要高速地渲染大量影像并显示，可能导致渲染成本、传输成本的增大。Also, as Technical Example 4, for example, as in Technical Example 3 above, a head mounted display (HMD: Head Mounted Display) that displays an image having depth information using a light field of an integrated imaging method can be cited. In Technical Example 4, the display that generates the light field is composed of LED emitters as tiny light sources, and the display on which the LED emitters are arrayed is mechanically moved in synchronization with the displayed image, so that a high-resolution light field can be generated over the entire field of view by time division. However, in Technical Example 4, in order to display high-resolution video over the entire field of view, a large number of video images need to be rendered and displayed at high speed, which may increase rendering costs and transmission costs.

另外，例如，作为技术例5，可举出解决VAC的头戴式显示器(HMD：Head MountedDisplay)。作为上述技术例1-4以外的技术例，该技术例5是使虚像面多层化的方法的技术。该方法的结构、机构简单，不需要特殊的装置的要求、高成本的计算就能够安装。然而，该方法中，深度信息是离散的，为了充分减轻用户的眼睛的VAC，消除生理不适，需要增加虚像面数，HMD有可能大型化。In addition, for example, as Technical Example 5, a head-mounted display (HMD: Head Mounted Display) that solves VAC can be mentioned. As a technical example other than the above technical examples 1-4, this technical example 5 is a technique of multi-layering a virtual image plane. The structure and mechanism of the method are simple, and it can be installed without requiring special device requirements or high-cost calculations. However, in this method, the depth information is discrete, and in order to sufficiently reduce the VAC of the user's eyes and eliminate physiological discomfort, it is necessary to increase the number of virtual image planes, and the HMD may be enlarged.

本技术是鉴于上述这样的状况而完成的。本技术例如由二维图像形成装置(例如二维显示器)、三维图像形成装置(例如三维显示器)、分束器(例如半反射镜)以及使用目镜的光学回路构成。该结构是为双眼准备的。在本技术中，二维显示器可以在视野整个区域显示利用了左右眼的视差的立体影像，三维显示器可以使用光场等，在视野中心的有限的范围显示具有深度信息、引发焦点调节的立体图像(立体影像)。二维显示器和三维显示器呈现的图像(影像)通过光学回路而被重叠，能够被用户视觉识别。The present technology has been accomplished in view of the above-mentioned situation. This technique is constituted by, for example, a two-dimensional image forming device (such as a two-dimensional display), a three-dimensional image forming device (such as a three-dimensional display), a beam splitter (such as a half mirror), and an optical circuit using an eyepiece. This structure is intended for both eyes. In this technology, a 2D display can display a stereoscopic image using the parallax between the left and right eyes in the entire field of view, and a 3D display can display a stereoscopic image (stereoscopic image) with depth information and triggering focus adjustment in a limited range in the center of the field of view using a light field or the like. The images (images) presented by the two-dimensional display and the three-dimensional display are superimposed through an optical circuit and can be visually recognized by the user.

本技术能够使不引发焦点调节的二维图像(二维影像)呈现在广视野，使引发焦点调节的高分辨率的三维图像(三维影像)重叠呈现在有限的视野范围。因此，根据本技术，能够解决辐辏调节冲突，且获得高沉浸感，另外，能够使本技术的图像显示装置的结构较简单，能够抑制制造、组装成本。进而，根据本技术，能够将具有深度信息的高分辨率的影像限制在例如视野的中心，因此，与显示在视野整个区域的情况相比，能够抑制渲染成本、传输成本。This technology can make the two-dimensional image (two-dimensional image) that does not cause focus adjustment be presented in a wide field of view, and the high-resolution three-dimensional image (three-dimensional image) that causes focus adjustment to be superimposed and presented in a limited field of view. Therefore, according to the present technology, the vergence adjustment conflict can be resolved, and a high immersion can be obtained. In addition, the structure of the image display device of the present technology can be simplified, and manufacturing and assembly costs can be suppressed. Furthermore, according to the present technology, since it is possible to limit a high-resolution video having depth information to, for example, the center of the field of view, it is possible to suppress rendering costs and transmission costs compared to displaying the entire field of view.

以下参照附图详细说明用于实施本技术的优选的实施方式。以下说明的实施方式表示本技术的代表性实施方式的一个例子，不应据此对本技术的范围作出窄义解释。Preferred embodiments for carrying out the present technology will be described in detail below with reference to the drawings. Embodiments described below are examples of representative embodiments of the present technology, and the scope of the present technology should not be construed in a narrow sense.

＜2.第1实施方式(图像显示装置的例1)＞<2. First Embodiment (Example 1 of Image Display Device)>

本技术的第1实施方式(图像显示装置的例1)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第1实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a first embodiment of the present technology (Example 1 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the first embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第1实施方式的图像显示装置中，三维图像形成装置使用集成成像方式形成三维图像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the first embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using an integrated imaging method. As a beam splitter, a half mirror etc. are mentioned, for example.

本技术的第1实施方式的图像显示装置能够使不引发焦点调节的二维图像(二维影像)呈现在广视野，使引发焦点调节的高分辨率的三维图像(三维影像)重叠呈现在有限的视野范围。根据该图像显示方法(影像显示方法)，以低成本解决辐辏调节冲突，且能够获得高沉浸感。The image display device according to the first embodiment of the present technology can display a two-dimensional image (two-dimensional video) without focus adjustment in a wide field of view, and superimpose and present a high-resolution three-dimensional image (three-dimensional video) with focus adjustment in a limited field of view. According to this image display method (image display method), vergence adjustment conflicts can be resolved at low cost, and high immersion can be obtained.

本技术的第1实施方式的图像显示装置针对每只眼睛具备：二维图像形成装置(例如二维显示器)，呈现立体图像(立体影像)；三维图像形成装置(例如，三维显示器)，使用光场等呈现具有深度信息的三维图像(三维影像)；分束器，使二维图像(二维影像)和三维图像(三维影像)重叠；以及目镜。二维图像形成装置(例如二维显示器)在遍及视野整个区域的大范围显示立体图像。三维图像形成装置(例如三维显示器)能够在有限的视野范围高分辨率地再现深度信息，不限于光场方式，也可以使用全息方式(参照后述的本技术的第4实施方式的图像显示装置等。)、多层化像(虚像)面方式(参照后述的本技术的第5以及第6实施方式的图像显示装置等。)等。The image display device according to the first embodiment of the present technology includes, for each eye, a two-dimensional image forming device (for example, a two-dimensional display) that presents a stereoscopic image (stereoscopic image); a three-dimensional image forming device (for example, a three-dimensional display) that presents a three-dimensional image (three-dimensional image) having depth information using a light field or the like; a beam splitter that overlaps the two-dimensional image (two-dimensional image) and the three-dimensional image (three-dimensional image); and an eyepiece. A two-dimensional image forming device such as a two-dimensional display displays a stereoscopic image over a wide range over the entire area of the field of view. A three-dimensional image forming device (for example, a three-dimensional display) can reproduce depth information with high resolution in a limited field of view, and is not limited to the light field method, and can also use a holographic method (see the image display device of the fourth embodiment of the present technology described later.), a multi-layered image (virtual image) surface method (refer to the image display device of the fifth and sixth embodiments of the present technology described later.) and the like.

本技术的第1实施方式的图像显示装置与上述的作为改善VAC的HMD的技术例1-5相比，以较简单的结构实现广视野、高分辨率，且能够抑制渲染成本、传输成本。人眼在视觉中心区域的视力最高，在除此以外的区域低。因此，人对视野周边区域中的画质劣化不敏感。The image display device according to the first embodiment of the present technology realizes a wide field of view and high resolution with a relatively simple structure, and can suppress rendering costs and transmission costs, compared with Technical Examples 1-5, which are HMDs with improved VAC. The visual acuity of the human eye is highest in the center of vision and low in other areas. Therefore, humans are insensitive to image quality degradation in the peripheral area of the field of view.

利用该特性，如后述的图2所示，在视野的大致中心部显示高分辨率、具有深度信息的三维图像(三维影像)，以在视野整个区域显示低分辨率、广视野的二维图像(二维影像)，从而能够满足为了人获得高沉浸感所需的分辨率和视野的宽度。另外，为了以有限的资源获得高的深度再现性，限制再现深度的视野范围是有效的。进而，通过限定显示三维图像(三维影像)的范围，能够抑制渲染三维图像(三维影像)所需的计算成本、传输成本。Utilizing this characteristic, as shown in FIG. 2 described later, a high-resolution, three-dimensional image with depth information (three-dimensional video) is displayed in the approximate center of the field of view, and a low-resolution, wide-field two-dimensional image (two-dimensional video) is displayed in the entire field of view, thereby satisfying the resolution and the width of the field of view required to obtain a high sense of immersion for humans. In addition, in order to obtain high depth reproducibility with limited resources, it is effective to limit the field of view for reproducing depth. Furthermore, by limiting the range in which a three-dimensional image (three-dimensional video) is displayed, it is possible to suppress calculation costs and transmission costs required for rendering a three-dimensional image (three-dimensional video).

此外，只要在技术上不特别存在矛盾，则在第0043-0045段中描述的上述内容也可适用于后述的本技术的第2-第8实施方式的图像显示装置。In addition, the above-mentioned contents described in paragraphs 0043-0045 can also be applied to the image display devices of the second to eighth embodiments of the present technology described later, as long as there is no particular technical contradiction.

以下，使用图1-图5，对本技术的第1实施方式(图像显示装置的例1)的图像显示装置进行说明。Hereinafter, an image display device according to a first embodiment (example 1 of an image display device) of the present technology will be described with reference to FIGS. 1 to 5 .

首先，使用图1，对图像显示装置101进行说明。First, the image display device 101 will be described using FIG. 1 .

图像显示装置101由左眼用图像显示装置101-L和右眼用图像显示装置101-R构成。The image display device 101 is composed of a left-eye image display device 101-L and a right-eye image display device 101-R.

图像显示装置101-L具备二维显示器2-L、集成成像方式的三维显示器1-L、半反射镜3-L、目镜4-L。集成成像方式的三维显示器1-L由微透镜1-1-L和显示器1-2-L构成。在图像显示装置101-L中，从二维显示器2-L射出的第1图像光以及从集成成像方式的三维显示器1-L射出的第2图像光依次经由半反射镜3-L、目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置101-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。The image display device 101-L includes a two-dimensional display 2-L, an integrated imaging three-dimensional display 1-L, a half mirror 3-L, and an eyepiece 4-L. The three-dimensional display 1-L in an integrated imaging mode is composed of a microlens 1-1-L and a display 1-2-L. In the image display device 101-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integrated imaging three-dimensional display 1-L sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 101-L, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置101-R具备二维显示器2-R、集成成像方式的三维显示器1-R、半反射镜3-R、目镜4-R。集成成像方式的三维显示器1-R由微透镜1-1-R和显示器1-2-R构成。在图像显示装置101-R中，从二维显示器2-R射出的第1图像光以及从集成成像方式的三维显示器1-R射出的第2图像光依次经由半反射镜3-R、目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置101-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。The image display device 101-R includes a two-dimensional display 2-R, an integrated imaging three-dimensional display 1-R, a half mirror 3-R, and an eyepiece 4-R. The three-dimensional display 1-R in an integrated imaging mode is composed of a microlens 1-1-R and a display 1-2-R. In the image display device 101-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integrated imaging three-dimensional display 1-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 101-R, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置101中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 101, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

使用图2进行说明。图2是示出本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的一个例子的图。Description will be made using FIG. 2 . 2 is a diagram illustrating an example of a method for superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology.

图2所示的图像显示装置102具备二维显示器2、集成成像方式(光场方式)的三维显示器1、半反射镜3和目镜4。三维显示器1由微透镜1和显示器1-2构成。The image display device 102 shown in FIG. 2 includes a two-dimensional display 2 , a three-dimensional display 1 of an integrated imaging method (light field method), a half mirror 3 , and an eyepiece 4 . The three-dimensional display 1 is composed of a microlens 1 and a display 1-2.

如图2的A所示，再现了深度信息的三维图像(三维影像)被目镜4放大为虚像(虚线G32-A)。另外，同样地，二维图像(二维影像)也被目镜4放大为虚像(实线G22-A)。如图2的B所示，在用户的视野的大致中心部显示三维图像(三维影像)的虚像G32-B，在用户的视野的大致整个区域显示二维图像(二维影像)的虚像G32-B，用户能够观看这两个虚像重叠后的影像。As shown in A of FIG. 2 , the three-dimensional image (three-dimensional video) reproduced with depth information is magnified into a virtual image by the eyepiece 4 (dotted line G32-A). In addition, similarly, the two-dimensional image (two-dimensional video) is also magnified into a virtual image by the eyepiece 4 (solid line G22-A). As shown in B of FIG. 2 , a virtual image G32-B of a three-dimensional image (three-dimensional video) is displayed approximately in the center of the user's field of view, and a virtual image G32-B of a two-dimensional image (two-dimensional video) is displayed approximately in the entire area of the user's field of view, and the user can view a superimposed video of these two virtual images.

使用图3-图5进行说明。Description will be made using Fig. 3 to Fig. 5 .

图3是示出本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例1的图，详细而言，是考虑辐辏，使显示三维图像(三维影像)的虚像的范围相对于图2的B所示的范围变更的例子。3 is a diagram showing Modification 1 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology. Specifically, it is an example in which the range of a virtual image displaying a three-dimensional image (three-dimensional video) is changed from the range shown in B of FIG. 2 in consideration of convergence.

在用户的左眼500-L中，二维图像(二维影像)的虚像G23-L显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G33-L相对于用户的视野的大致中心部显示在右侧(图3的A)。图3的A所示的附图标记K1表示光轴，附图标记K2表示具有深度信息的图像(影像)的中心，附图标记K1和附图标记K2之间的距离d为IPD/2。另一方面，在用户的右眼500-R中，二维图像(二维影像)的虚像G23-R显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G33-R相对于用户的视野的大致中心部显示在左侧(图3的B)。In the user's left eye 500-L, a virtual image G23-L of a two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's field of vision, and a virtual image G33-L of a three-dimensional image (three-dimensional video) is displayed on the right side of approximately the center of the user's field of vision (A in FIG. 3 ). Reference symbol K1 shown in A of FIG. 3 indicates an optical axis, reference symbol K2 indicates the center of an image (video) having depth information, and a distance d between reference symbol K1 and reference symbol K2 is IPD/2. On the other hand, in the user's right eye 500-R, a virtual image G23-R of a two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's field of vision, and a virtual image G33-R of a three-dimensional image (three-dimensional video) is displayed on the left side of approximately the center of the user's field of view (B in FIG. 3 ).

图4是示出本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例2的图，是示出使三维图像(三维影像)的范围为圆形的例子的图(此外，图2的B以及图3是使三维图像(三维影像)的范围为矩形的例子。)。4 is a diagram showing a modification 2 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology, and is a diagram showing an example in which the range of the three-dimensional image (three-dimensional video) is circular (in addition, B of FIG. 2 and FIG. 3 are examples in which the range of the three-dimensional image (three-dimensional video) is rectangular.).

在用户的左眼500-L中，二维图像(二维影像)的虚像G24-L显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G34-L相对于用户的视野的大致中心部以圆形显示在右侧(图4的A)。图4的A所示的附图标记K1表示光轴，附图标记K2表示具有深度信息的图像(影像)的中心，附图标记K1和附图标记K2之间的距离d为IPD/2。另一方面，在用户的右眼500-R中，二维图像(二维影像)的虚像G24-R显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G34-R相对于用户的视野的大致中心部以圆形显示在左侧(图4的B)。In the user's left eye 500-L, the virtual image G24-L of the two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's field of vision, and the virtual image G34-L of the three-dimensional image (three-dimensional video) is displayed in a circle on the right side with respect to the approximate center of the user's field of vision (A of FIG. 4 ). Reference symbol K1 shown in A of FIG. 4 indicates an optical axis, reference symbol K2 indicates the center of an image (video) having depth information, and a distance d between reference symbol K1 and reference symbol K2 is IPD/2. On the other hand, in the user's right eye 500-R, a virtual image G24-R of a two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's field of vision, and a virtual image G34-R of a three-dimensional image (three-dimensional video) is displayed in a circular shape on the left side with respect to the approximate center of the user's field of view (B of FIG. 4 ).

图5是示出本技术的第1实施方式的图像显示装置使二维图像和三维图像重叠显示的方法的变形例3的图，是示出使三维图像(三维影像)的范围为椭圆形的例子的图(此外，如上所述，图2的B以及图3是使三维图像(三维影像)的范围为矩形的例子，图4是使三维图像(三维影像)的范围为圆形的例子。)。5 is a diagram showing a modification example 3 of a method of superimposing and displaying a two-dimensional image and a three-dimensional image by the image display device according to the first embodiment of the present technology, and is a diagram showing an example in which the range of the three-dimensional image (three-dimensional video) is elliptical (in addition, as described above, FIG. 2B and FIG. 3 are examples in which the range of the three-dimensional image (three-dimensional video) is rectangular, and FIG. 4 is an example in which the range of the three-dimensional image (three-dimensional video) is circular.).

在用户的左眼500-L中，二维图像(二维影像)的虚像G25-L显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G35-L相对于用户的视野的大致中心部以椭圆形显示在右侧(图5的A)。图5的A所示的附图标记K1表示光轴，附图标记K2表示具有深度信息的图像(影像)的中心，附图标记K1和附图标记K2之间的距离d为IPD/2。另一方面，在用户的右眼500-R中，二维图像(二维影像)的虚像G25-R显示在用户的视野的大致整个区域，三维图像(三维影像)的虚像G35-R相对于用户的视野的大致中心部以椭圆形显示在左侧(图4的B)。In the user's left eye 500-L, a virtual image G25-L of a two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's visual field, and a virtual image G35-L of a three-dimensional image (three-dimensional video) is displayed in an ellipse on the right side with respect to the approximate center of the user's visual field (A of FIG. 5 ). Reference symbol K1 shown in A of FIG. 5 indicates an optical axis, reference symbol K2 indicates the center of an image (video) having depth information, and the distance d between reference symbol K1 and reference symbol K2 is IPD/2. On the other hand, in the user's right eye 500-R, a virtual image G25-R of a two-dimensional image (two-dimensional video) is displayed in substantially the entire area of the user's field of vision, and a virtual image G35-R of a three-dimensional image (three-dimensional video) is displayed in an ellipse on the left with respect to the approximate center of the user's field of view (B of FIG. 4 ).

只要在技术上不特别存在矛盾，则以上对本技术的第1实施方式(图像显示装置的例1)的图像显示装置进行说明的内容能够适用于后述的本技术的第2-第8实施方式的图像显示装置。The content described above for the image display device of the first embodiment (example 1 of the image display device) of the present technology can be applied to the image display devices of the second to eighth embodiments of the present technology described later, unless there is a particular technical contradiction.

＜3.第2实施方式(图像显示装置的例2)＞<3. Second Embodiment (Example 2 of Image Display Device)>

本技术的第2实施方式(图像显示装置的例2)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第2实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a second embodiment of the present technology (example 2 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the second embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第2实施方式的图像显示装置中，三维图像形成装置使用张量显示方式(使用多个透射型显示器的方式)形成三维图像。通过使用张量显示方式形成三维图像，虽然计算成本相对于集成成像方式增大，但是，通过限制视野，与现有的方法相比，能够抑制计算成本。另外，通过使用张量显示方式形成三维图像，能够遍及更大的深度范围显示更高分辨率的影像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the second embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using a tensor display method (a method using a plurality of transmissive displays). Forming a three-dimensional image by using the tensor display method increases the calculation cost compared to the integrated imaging method, but by limiting the field of view, the calculation cost can be suppressed compared with the conventional method. In addition, by forming a three-dimensional image using a tensor display method, it is possible to display a higher-resolution image over a larger depth range. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图6对本技术的第2实施方式(图像显示装置的例2)的图像显示装置进行说明。Hereinafter, an image display device according to a second embodiment (example 2 of the image display device) of the present technology will be described with reference to FIG. 6 .

在图6中示出图像显示装置106。图像显示装置106由左眼用图像显示装置106-L和右眼用图像显示装置106-R构成。The image display device 106 is shown in FIG. 6 . The image display device 106 is composed of a left-eye image display device 106-L and a right-eye image display device 106-R.

图像显示装置106-L具备二维显示器2-L、张量显示方式的三维显示器16-L、半反射镜3-L和目镜4-L。张量显示方式的三维显示器16-L由2个显示器16-2-1-L以及16-2-2-L构成，但也可以由3个以上的显示器构成。The image display device 106-L includes a two-dimensional display 2-L, a tensor display method three-dimensional display 16-L, a half mirror 3-L, and an eyepiece 4-L. The three-dimensional display 16-L of the tensor display method is composed of two displays 16-2-1-L and 16-2-2-L, but may be composed of three or more displays.

在图像显示装置106-L中，从二维显示器2-L射出的第1图像光以及从张量显示方式的三维显示器16-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置106-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 106-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the tensor display method three-dimensional display 16-L sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 106-L, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置106-R具备二维显示器2-R、张量显示方式的三维显示器16-R、半反射镜3-R和目镜4-R。张量显示方式的三维显示器16-R由2个显示器16-2-1-R以及16-2-2-R构成，但也可以由3个以上的显示器构成。The image display device 106-R includes a two-dimensional display 2-R, a tensor display method three-dimensional display 16-R, a half mirror 3-R, and an eyepiece 4-R. The three-dimensional display 16-R of the tensor display method is composed of two displays 16-2-1-R and 16-2-2-R, but may be composed of three or more displays.

在图像显示装置106-R中，从二维显示器2-R射出的第1图像光以及从张量显示方式的三维显示器16-R射出的第2图像光依次经由半反射镜3-R和目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置106-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 106-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the tensor display type three-dimensional display 16-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 106-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置106中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 106, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第2实施方式(图像显示装置的例2)的图像显示装置进行说明的内容能够适用于前述的本技术的第1实施方式的图像显示装置以及后述的本技术的第3-第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the second embodiment of the present technology (example 2 of the image display device) can be applied to the image display device of the first embodiment of the present technology described above and the image display devices of the third to eighth embodiments of the present technology described later.

＜4.第3实施方式(图像显示装置的例3)＞<4. Third Embodiment (Example 3 of Image Display Device)>

本技术的第3实施方式(图像显示装置的例3)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第3实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a third embodiment of the present technology (example 3 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the third embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第3实施方式的图像显示装置中，三维图像形成装置使用超多视角方式形成三维图像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the third embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using a super multi-view method. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图7对本技术的第3实施方式(图像显示装置的例3)的图像显示装置进行说明。Hereinafter, an image display device according to a third embodiment (example 3 of an image display device) of the present technology will be described with reference to FIG. 7 .

在图7中示出图像显示装置107。图像显示装置107由左眼用图像显示装置107-L和右眼用图像显示装置107-R构成。The image display device 107 is shown in FIG. 7 . The image display device 107 is composed of a left-eye image display device 107-L and a right-eye image display device 107-R.

图像显示装置107-L具备二维显示器2-L、超多视角方式的三维显示器17-L、半反射镜3-L和目镜4-L。超多视角方式的三维显示器17-L由柱状透镜17-1-L和显示器17-2-L构成。The image display device 107-L includes a two-dimensional display 2-L, a super multi-view three-dimensional display 17-L, a half mirror 3-L, and an eyepiece 4-L. The super multi-view three-dimensional display 17-L is composed of a lenticular lens 17-1-L and a display 17-2-L.

在图像显示装置107-L中，从二维显示器2-L射出的第1图像光以及从超多视角方式的三维显示器17-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置107-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 107-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the super multi-angle three-dimensional display 17-L sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 107-L, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置107-R具备二维显示器2-R、超多视角方式的三维显示器17-R、半反射镜3-R和目镜4-R。超多视角方式的三维显示器17-R由柱状透镜17-1-R和显示器17-2-R构成。The image display device 107-R includes a two-dimensional display 2-R, a super multi-view three-dimensional display 17-R, a half mirror 3-R, and an eyepiece 4-R. The super multi-view three-dimensional display 17-R is composed of a lenticular lens 17-1-R and a display 17-2-R.

在图像显示装置107-R中，从二维显示器2-R射出的第1图像光以及从超多视角方式的三维显示器17-R射出的第2图像光依次经由半反射镜3-R、目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置107-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 107-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the super multi-angle three-dimensional display 17-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 107-R, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置107中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 107, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第3实施方式(图像显示装置的例3)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第2实施方式的图像显示装置以及后述的本技术的第4-第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the third embodiment of the present technology (example 3 of the image display device) can be applied to the image display devices of the aforementioned first to second embodiments of the present technology and image display devices of the fourth to eighth embodiments of the present technology described later.

＜5.第4实施方式(图像显示装置的例4)＞<5. Fourth Embodiment (Example 4 of Image Display Device)>

本技术的第4实施方式(图像显示装置的例4)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第4实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a fourth embodiment of the present technology (example 4 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the fourth embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第4实施方式的图像显示装置中，三维图像形成装置使用全息方式形成三维图像。通过使用全息方式形成三维图像，虽然计算成本相对于集成成像方式增大，但是，通过限制视野，与现有的方法相比，能够抑制计算成本，并且，虽然有可能结构变得复杂，但是，能够实现更高的分辨率、更高的深度再现性。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the fourth embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using a holographic method. Forming a three-dimensional image by using a holographic method increases the computational cost compared to the integrated imaging method, but by limiting the field of view, the computational cost can be suppressed compared with the existing method, and although the structure may become complicated, higher resolution and higher depth reproducibility can be achieved. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图8对本技术的第4实施方式(图像显示装置的例4)的图像显示装置进行说明。Hereinafter, an image display device according to a fourth embodiment (example 4 of an image display device) of the present technology will be described with reference to FIG. 8 .

在图8中示出图像显示装置108。图像显示装置108由左眼用图像显示装置108-L和右眼用图像显示装置108-R构成。The image display device 108 is shown in FIG. 8 . The image display device 108 is composed of a left-eye image display device 108-L and a right-eye image display device 108-R.

图像显示装置108-L具备二维显示器2-L、全息方式的三维显示器18-L、半反射镜3-L和目镜4-L。全息方式的三维显示器18-L具有空间光调制器18-2-L和光源18-3-L(激光光源等)。The image display device 108-L includes a two-dimensional display 2-L, a holographic three-dimensional display 18-L, a half mirror 3-L, and an eyepiece 4-L. The holographic three-dimensional display 18-L has a spatial light modulator 18-2-L and a light source 18-3-L (laser light source or the like).

在图像显示装置108-L中，从二维显示器2-L射出的第1图像光以及从全息方式的三维显示器18-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置108-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 108-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the holographic three-dimensional display 18-L sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 108-L, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置108-R具备二维显示器2-R、全息方式的三维显示器18-R、半反射镜3-R、目镜4-R。全息方式的三维显示器18-R具有空间光调制器18-2-R、光源18-3-R(激光光源等)。The image display device 108-R includes a two-dimensional display 2-R, a holographic three-dimensional display 18-R, a half mirror 3-R, and an eyepiece 4-R. The holographic three-dimensional display 18-R has a spatial light modulator 18-2-R and a light source 18-3-R (laser light source, etc.).

在图像显示装置108-R中，从二维显示器2-R射出的第1图像光以及从全息方式的三维显示器18-R射出的第2图像光依次经由半反射镜3-R、目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置108-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 108-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the holographic three-dimensional display 18-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 108-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置108中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 108, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第4实施方式(图像显示装置的例4)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第3实施方式的图像显示装置以及后述的本技术的第5-第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the fourth embodiment of the present technology (Example 4 of the image display device) can be applied to the image display devices of the first to third embodiments of the present technology described above and the image display devices of the fifth to eighth embodiments of the present technology described later.

＜6.第5实施方式(图像显示装置的例5)＞<6. Fifth Embodiment (Example 5 of Image Display Device)>

本技术的第5实施方式(图像显示装置的例5)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第5实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a fifth embodiment of the present technology (example 5 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the fifth embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第5实施方式的图像显示装置中，三维图像形成装置通过在空间上多层化的像面，即通过使用层叠的显示器的空间多层化虚像面方式，形成三维图像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the fifth embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using a spatially multi-layered image plane, that is, a spatially multi-layered virtual image plane method using stacked displays. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图9对本技术的第5实施方式(图像显示装置的例5)的图像显示装置进行说明。Hereinafter, an image display device according to a fifth embodiment (example 5 of an image display device) of the present technology will be described with reference to FIG. 9 .

在图9中示出图像显示装置109。图像显示装置109由左眼用图像显示装置109-L和右眼用图像显示装置109-R构成。The image display device 109 is shown in FIG. 9 . The image display device 109 is composed of a left-eye image display device 109-L and a right-eye image display device 109-R.

图像显示装置109-L具备二维显示器2-L、多层化像面方式的三维显示器19-L、半反射镜3-L和目镜4-L。多层化像面方式的三维显示器19-L通过在空间上多层化的像面形成三维图像。多层化像面方式的三维显示器19-L由层叠的显示器19-2-1-L以及19-2-L构成。此外，多层化像面方式的三维显示器19-L由2个显示器19-2-1-L以及19-2-L构成，但也可以由3个以上显示器构成。The image display device 109-L includes a two-dimensional display 2-L, a three-dimensional display 19-L of a multilayer image plane system, a half mirror 3-L, and an eyepiece 4-L. The three-dimensional display 19-L of the multi-layered image plane method forms a three-dimensional image by spatially multi-layered image planes. The three-dimensional display 19-L of the multi-layered image plane system is composed of stacked displays 19-2-1-L and 19-2-L. In addition, the three-dimensional display 19-L of the multi-layered image plane system is composed of two displays 19-2-1-L and 19-2-L, but it may also be composed of three or more displays.

在图像显示装置109-L中，从二维显示器2-L射出的第1图像光以及从多层化像面方式的三维显示器19-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置109-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 109-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the three-dimensional display 19-L of the multi-layered image plane method sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 109-L, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置109-R具备二维显示器2-R、多层化像面方式的三维显示器19-R、半反射镜3-R和目镜4-R。多层化像面方式的三维显示器19-R通过在空间上多层化的像面形成三维图像。多层化像面方式的三维显示器19-R由层叠的显示器19-2-1-R以及19-2-R构成。此外，多层化像面方式的三维显示器19-R由2个显示器19-2-1-R以及19-2-R构成，但也可以由3个以上显示器构成。The image display device 109-R includes a two-dimensional display 2-R, a three-dimensional display 19-R of a multilayer image plane system, a half mirror 3-R, and an eyepiece 4-R. The three-dimensional display 19 -R of the multi-layered image plane method forms a three-dimensional image with spatially multi-layered image planes. The three-dimensional display 19-R of the multi-layered image plane system is composed of stacked displays 19-2-1-R and 19-2-R. In addition, the three-dimensional display 19-R of the multi-layered image plane system is composed of two displays 19-2-1-R and 19-2-R, but it may also be composed of three or more displays.

在图像显示装置109-R中，从二维显示器2-R射出的第1图像光以及从多层化像面方式的三维显示器19-R射出的第2图像光依次经由半反射镜3-R和目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置109-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 109-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the multi-layer image plane type three-dimensional display 19-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 109-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置109中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 109, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第5实施方式(图像显示装置的例5)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第4实施方式的图像显示装置以及后述的本技术的第6-第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the fifth embodiment of the present technology (Example 5 of the image display device) can be applied to the image display devices of the first to fourth embodiments of the present technology described above and the image display devices of the sixth to eighth embodiments of the present technology described later.

＜7.第6实施方式(图像显示装置的例6)＞<7. Sixth Embodiment (Example 6 of Image Display Device)>

本技术的第6实施方式(图像显示装置的例6)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜。在本技术的第6实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to a sixth embodiment of the present technology (example 6 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, and eyepieces for both eyes of a user. In the image display device according to the sixth embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

另外，在本技术的第6实施方式的图像显示装置中，三维图像形成装置通过在时间上多层化的像面，即，使显示器在光轴方向上移动的时间多层化虚像面方式形成三维图像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the sixth embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using a temporally multi-layered image plane, that is, a temporally multi-layered virtual image plane when the display is moved in the optical axis direction. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图10对本技术的第6实施方式(图像显示装置的例6)的图像显示装置进行说明。Hereinafter, an image display device according to a sixth embodiment (example 6 of an image display device) of the present technology will be described with reference to FIG. 10 .

在图10中示出图像显示装置110。图像显示装置110由左眼用图像显示装置110-L和右眼用图像显示装置110-R构成。An image display device 110 is shown in FIG. 10 . The image display device 110 is composed of a left-eye image display device 110-L and a right-eye image display device 110-R.

图像显示装置110-L具备二维显示器2-L、多层化像面方式的三维显示器610-L、半反射镜3-L和目镜4-L。多层化像面方式的三维显示器610-L通过在时间上多层化的像面形成三维图像。通过使多层化像面方式的三维显示器610-L在光轴方向(箭头P10-L)上移动，能够改变虚像位置。The image display device 110-L includes a two-dimensional display 2-L, a three-dimensional display 610-L of a multilayer image plane system, a half mirror 3-L, and an eyepiece 4-L. The three-dimensional display 610-L of the multi-layered image plane method forms a three-dimensional image with temporally multi-layered image planes. The virtual image position can be changed by moving the three-dimensional display 610-L of the multi-layered image plane system in the optical axis direction (arrow P10-L).

在图像显示装置110-L中，从二维显示器2-L射出的第1图像光以及从多层化像面方式的三维显示器610-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置110-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 110-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the three-dimensional display 610-L of the multi-layer image plane method sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 110-L, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置110-R具备二维显示器2-R、多层化像面方式的三维显示器610-R、半反射镜3-R和目镜4-R。多层化像面方式的三维显示器610-R通过在时间上多层化的像面形成三维图像。通过使多层化像面方式的三维显示器610-R在光轴方向(箭头P10-L)上移动，能够改变虚像位置。The image display device 110-R includes a two-dimensional display 2-R, a three-dimensional display 610-R of a multilayer image plane system, a half mirror 3-R, and an eyepiece 4-R. The three-dimensional display 610-R of the multi-layered image plane method forms a three-dimensional image with temporally multi-layered image planes. The position of the virtual image can be changed by moving the three-dimensional display 610-R of the multilayer image plane system in the optical axis direction (arrow P10-L).

在图像显示装置110-R中，从二维显示器2-R射出的第1图像光以及从多层化像面方式的三维显示器610-R射出的第2图像光依次经由半反射镜3-R和目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置110-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 110-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the three-dimensional display 610-R of the multi-layer image plane method sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 110-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置110中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 110, a 3D image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a 2D display parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第6实施方式(图像显示装置的例6)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第5实施方式的图像显示装置以及后述的本技术的第7-第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the sixth embodiment of the present technology (example 6 of the image display device) can be applied to the image display devices of the first to fifth embodiments of the present technology described above and the image display devices of the seventh to eighth embodiments of the present technology described later.

＜8.第7实施方式(图像显示装置的例7)＞<8. Seventh Embodiment (Example 7 of Image Display Device)>

本技术的第7实施方式(图像显示装置的例7)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置和包含分束器以及目镜的自由曲面透镜。在本技术的第7实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光经由自由曲面透镜分别入射到用户的双眼。自由曲面透镜具备分束器和目镜。例如能够对目镜彼此的贴合面附加分束器的功能来制作自由曲面透镜。An image display device according to a seventh embodiment of the present technology (example 7 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, and a free-form surface lens including a beam splitter and an eyepiece for both eyes of the user. In the image display device according to the seventh embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device respectively enter both eyes of the user through the free-form surface lens. Freeform lenses with beam splitters and eyepieces. For example, a free-form surface lens can be produced by adding the function of a beam splitter to the bonded surfaces of eyepieces.

通过在本技术的第7实施方式的图像显示装置中设置自由曲面透镜，能够使本技术的第7实施方式的图像显示装置整体小型化、薄型化。By providing the free-form surface lens in the image display device according to the seventh embodiment of the present technology, the overall size and thickness of the image display device according to the seventh embodiment of the present technology can be reduced.

另外，在本技术的第7实施方式的图像显示装置中，三维图像形成装置使用集成成像方式形成三维图像。此外，本技术的第7实施方式的图像显示装置具备的三维图像形成装置可以使用张量显示方式形成三维图像，也可以使用超多视角方式形成三维图像，也可以使用全息方式形成三维图像，也可以通过在空间上多层化的像面形成三维图像，也可以通过在时间上多层化的像面形成三维图像。In addition, in the image display device according to the seventh embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using an integrated imaging method. In addition, the 3D image forming device included in the image display device according to the seventh embodiment of the present technology may form a 3D image using a tensor display method, may form a 3D image using a super multi-view method, may form a 3D image using a holographic method, may form a 3D image with spatially multi-layered image planes, or may form a 3D image with temporally multi-layered image planes.

以下，使用图11对本技术的第7实施方式(图像显示装置的例7)的图像显示装置进行说明。Hereinafter, an image display device according to a seventh embodiment (example 7 of an image display device) of the present technology will be described with reference to FIG. 11 .

在图11中示出图像显示装置111。图像显示装置111由左眼用图像显示装置111-L和右眼用图像显示装置111-R构成。An image display device 111 is shown in FIG. 11 . The image display device 111 is composed of a left-eye image display device 111-L and a right-eye image display device 111-R.

图像显示装置111-L具备二维显示器2-L、集成成像方式的三维显示器1-L和自由曲面透镜411-L。自由曲面透镜411-L由分束器和目镜构成。The image display device 111-L includes a two-dimensional display 2-L, an integrated imaging three-dimensional display 1-L, and a free-form surface lens 411-L. The free-form surface lens 411-L is composed of a beam splitter and an eyepiece.

在图像显示装置111-L中，从二维显示器2-L射出的第1图像光以及从集成成像方式的三维显示器1-L射出的第2图像光经由自由曲面透镜411-L入射到用户的左眼500-L。因此，在图像显示装置111-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 111-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integrated imaging three-dimensional display 1-L enter the user's left eye 500-L via the free-form surface lens 411-L. Therefore, in the image display device 111-L, a two-dimensional image (two-dimensional video) based on the first image light and a three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置111-R具备二维显示器2-R、集成成像方式的三维显示器1-R和自由曲面透镜411-R。自由曲面透镜411-L由分束器和目镜构成。The image display device 111-R includes a two-dimensional display 2-R, an integrated imaging three-dimensional display 1-R, and a free-form surface lens 411-R. The free-form surface lens 411-L is composed of a beam splitter and an eyepiece.

在图像显示装置111-R中，从二维显示器2-R射出的第1图像光以及从集成成像方式的三维显示器1-R射出的第2图像光经由自由曲面透镜411-R入射到用户的左眼500-R。因此，在图像显示装置111-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 111-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integrated imaging three-dimensional display 1-R enter the user's left eye 500-R via the free-form surface lens 411-R. Therefore, in the image display device 111-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置111中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。As described above, in the image display device 111, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, approximately the center of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed.

只要在技术上不特别存在矛盾，则以上对本技术的第7实施方式(图像显示装置的例7)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第6实施方式的图像显示装置以及后述的本技术的第8实施方式的图像显示装置。As long as there is no particular technical conflict, the content described above for the image display device of the seventh embodiment of the present technology (example 7 of the image display device) can be applied to the image display device of the first to sixth embodiments of the present technology described above and the image display device of the eighth embodiment of the present technology described later.

＜9.第8实施方式(图像显示装置的例8)＞<9. Eighth Embodiment (Example 8 of Image Display Device)>

本技术的第8实施方式(图像显示装置的例8)的图像显示装置针对用户的双眼分别具备二维图像形成装置、三维图像形成装置、分束器和目镜和视线检测装置。在本技术的第8实施方式的图像显示装置中，从二维图像形成装置射出的第1图像光以及从三维图像形成装置射出的第2图像光依次经由分束器和目镜而分别入射到用户的双眼。An image display device according to an eighth embodiment of the present technology (example 8 of an image display device) includes a two-dimensional image forming device, a three-dimensional image forming device, a beam splitter, an eyepiece, and a line-of-sight detection device for both eyes of the user. In the image display device according to the eighth embodiment of the present technology, the first image light emitted from the two-dimensional image forming device and the second image light emitted from the three-dimensional image forming device sequentially enter both eyes of the user through the beam splitter and the eyepiece.

通过在本技术的第8实施方式的图像显示装置中设置视线检测装置，能够追随视线改变显示三维图像(三维影像)的范围。为了检测视线，能够使用近红外光源和相机。为了追随视线，使用能够使视线检测装置在与光轴垂直的面内移动的致动器等。根据本技术的第8实施方式的图像显示装置，能够在视线方向上始终显示具有高分辨率的深度信息的三维图像(三维影像)。By providing the line-of-sight detection device in the image display device according to the eighth embodiment of the present technology, it is possible to change the display range of a three-dimensional image (three-dimensional video) following the line of sight. To detect line of sight, a near-infrared light source and a camera can be used. In order to follow the line of sight, an actuator or the like capable of moving the line of sight detection device in a plane perpendicular to the optical axis is used. According to the image display device according to the eighth embodiment of the present technology, it is possible to always display a three-dimensional image (three-dimensional video) having high-resolution depth information in the direction of the line of sight.

另外，在本技术的第8实施方式的图像显示装置中，三维图像形成装置使用集成成像方式形成三维图像。此外，本技术的第8实施方式的图像显示装置具备的三维图像形成装置可以使用张量显示方式形成三维图像，也可以使用超多视角方式形成三维图像，也可以使用全息方式形成三维图像，也可以通过在空间上多层化的像面形成三维图像，也可以通过在时间上多层化的像面形成三维图像。作为分束器，例如可举出半反射镜等。In addition, in the image display device according to the eighth embodiment of the present technology, the three-dimensional image forming device forms a three-dimensional image using an integrated imaging method. In addition, the 3D image forming device included in the image display device according to the eighth embodiment of the present technology may form a 3D image using a tensor display method, may form a 3D image using a super multi-view method, may form a 3D image using a holographic method, may form a 3D image with spatially multi-layered image planes, or may form a 3D image with temporally multi-layered image planes. As a beam splitter, a half mirror etc. are mentioned, for example.

以下，使用图12对本技术的第8实施方式(图像显示装置的例8)的图像显示装置进行说明。Hereinafter, an image display device according to an eighth embodiment (example 8 of an image display device) of the present technology will be described with reference to FIG. 12 .

在图12中示出图像显示装置112。图像显示装置112由左眼用图像显示装置112-L和右眼用图像显示装置112-R构成。An image display device 112 is shown in FIG. 12 . The image display device 112 is composed of a left-eye image display device 112-L and a right-eye image display device 112-R.

图像显示装置112-L具备二维显示器2-L、集成成像方式的三维显示器1-L、半反射镜3-L、目镜4-L和视线检测装置712-L。视线检测装置712-L由光源712-1-L(近红外LED等)和图像传感器712-2-L构成。使用致动器等，视线检测装置712-L能够在追随视线的同时在上下方向(箭头P12-L)和/或左右方向(未图示。图12的左右方向)上移动。The image display device 112-L includes a two-dimensional display 2-L, an integrated imaging three-dimensional display 1-L, a half mirror 3-L, an eyepiece 4-L, and a line-of-sight detection device 712-L. The line-of-sight detection device 712-L is composed of a light source 712-1-L (near-infrared LED or the like) and an image sensor 712-2-L. Using an actuator or the like, the line of sight detection device 712-L can move in the vertical direction (arrow P12-L) and/or the left and right direction (not shown; the left and right direction in FIG. 12 ) while following the line of sight.

在图像显示装置112-L中，从二维显示器2-L射出的第1图像光以及从集成成像方式的三维显示器1-L射出的第2图像光依次经由半反射镜3-L和目镜4-L，入射到用户的左眼500-L。因此，在图像显示装置112-L中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 112-L, the first image light emitted from the two-dimensional display 2-L and the second image light emitted from the integrated imaging three-dimensional display 1-L sequentially pass through the half mirror 3-L and the eyepiece 4-L, and enter the user's left eye 500-L. Therefore, in the image display device 112-L, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

图像显示装置112-R具备二维显示器2-R、集成成像方式的三维显示器1-R、半反射镜3-R、目镜4-R、视线检测装置712-R。视线检测装置712-R由光源712-1-R(近红外LED等)和图像传感器712-2-R构成。使用致动器等，视线检测装置712-R能够在追随视线的同时在上下方向(箭头P12-L)和/或左右方向(未图示。图12的左右方向)上移动。The image display device 112-R includes a two-dimensional display 2-R, an integrated imaging three-dimensional display 1-R, a half mirror 3-R, an eyepiece 4-R, and a line-of-sight detection device 712-R. The line-of-sight detection device 712-R is composed of a light source 712-1-R (near-infrared LED, etc.) and an image sensor 712-2-R. Using an actuator or the like, the line of sight detection device 712-R can move in the vertical direction (arrow P12-L) and/or the left and right direction (not shown; the left and right direction in FIG. 12 ) while following the line of sight.

在图像显示装置112-R中，从二维显示器2-R射出的第1图像光以及从集成成像方式的三维显示器1-R射出的第2图像光依次经由半反射镜3-R和目镜4-R，入射到用户的左眼500-R。因此，在图像显示装置112-R中，基于第1图像光的二维图像(二维影像)和基于第2图像光的三维图像(三维影像)被重叠显示。In the image display device 112-R, the first image light emitted from the two-dimensional display 2-R and the second image light emitted from the integrated imaging three-dimensional display 1-R sequentially pass through the half mirror 3-R and the eyepiece 4-R, and enter the user's left eye 500-R. Therefore, in the image display device 112-R, the two-dimensional image (two-dimensional video) based on the first image light and the three-dimensional image (three-dimensional video) based on the second image light are superimposed and displayed.

如上所述，在图像显示装置112中，显示在用户的视野的一部分(例如用户的视野的大致中心部)的再现深度信息的三维图像和显示在用户的视野的大致整个区域的二维显示视差图像能够被重叠。另外，在图像显示装置112中，进行视线追随，使高分辨率且具有深度信息的三维图像(三维影像)例如始终显示在视野的大致中心部。As described above, in the image display device 112, a three-dimensional image of reproduced depth information displayed on a part of the user's field of view (for example, an approximately central portion of the user's field of view) and a two-dimensionally displayed parallax image displayed on approximately the entire area of the user's field of view can be superimposed. In addition, the image display device 112 performs line-of-sight tracking so that a three-dimensional image (three-dimensional video) having high resolution and depth information is always displayed, for example, at approximately the center of the field of view.

只要在技术上不特别存在矛盾，则以上对本技术的第8实施方式(图像显示装置的例8)的图像显示装置进行说明的内容能够适用于前述的本技术的第1-第7实施方式的图像显示装置。The content described above for the image display device of the eighth embodiment (example 8 of the image display device) of the present technology can be applied to the image display devices of the above-mentioned first to seventh embodiments of the present technology unless there is a particular technical contradiction.

＜10.第9实施方式(显示装置的例1)＞<10. Ninth Embodiment (Example 1 of Display Device)>

本技术的第9实施方式(显示装置的例1)的显示装置具备佩戴于用户的头部的框架和安装于框架的图像显示装置，图像显示装置为本技术的第1实施方式-第8实施方式的图像显示装置中的至少一个实施方式的图像显示装置。作为本技术的第9实施方式(显示装置的例1)的显示装置，例如可举出护目镜式显示器(Eyewear Display)、头戴式显示器(HMD：Head Mounted Display)等。A display device according to a ninth embodiment of the present technology (example 1 of a display device) includes a frame worn on the user's head and an image display device attached to the frame, and the image display device is an image display device in at least one embodiment of the image display devices according to the first embodiment to the eighth embodiment of the present technology. Examples of the display device according to the ninth embodiment (Example 1 of the display device) of the present technology include an eyewear display (Eyewear Display), a head mounted display (HMD: Head Mounted Display), and the like.

本技术的第9实施方式的显示装置构成为例如佩戴于用户的头部，具有眼镜状的形状，对双眼分别投射图像光(影像光)。A display device according to a ninth embodiment of the present technology is configured, for example, to be worn on a user's head, have a glasses-like shape, and project image light (video light) to both eyes.

此外，本技术的实施方式不限于上述各实施方式，能够在不脱离本技术的主旨的范围内进行各种变更。In addition, embodiment of this technology is not limited to each said embodiment, Various changes are possible in the range which does not deviate from the summary of this technology.

另外，本说明书中记载的效果仅为例示，并不限定于此，也可以还具有其他效果。In addition, the effects described in this specification are only examples and are not limited thereto, and other effects may also be obtained.

另外，本技术也可以采取如下配置。In addition, the present technology may also take the following configurations.

[1][1]

一种图像显示装置，an image display device,

[2][2]

根据[1]所述的图像显示装置，其中，所述分束器为半反射镜。The image display device according to [1], wherein the beam splitter is a half mirror.

[3][3]

根据[1]或[2]所述的图像显示装置，其中，由从所述二维图像形成装置射出的所述第1图像光形成的二维图像和由从所述三维图像形成装置射出的所述第2图像光形成的三维图像重叠，被所述用户视觉识别。The image display device according to [1] or [2], wherein the two-dimensional image formed by the first image light emitted from the two-dimensional image forming device and the three-dimensional image formed by the second image light emitted from the three-dimensional image forming device are superimposed and visually recognized by the user.

[4][4]

根据[1]至[3]中任一项所述的图像显示装置，其中，由从所述二维图像形成装置射出的所述第1图像光形成的二维图像显示在所述用户的视野的大致整个区域，The image display device according to any one of [1] to [3], wherein the two-dimensional image formed by the first image light emitted from the two-dimensional image forming device is displayed on substantially the entire field of view of the user,

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像显示在所述用户的视野的一部分。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device is displayed on a part of the field of view of the user.

[5][5]

根据[1]至[3]中任一项所述的图像显示装置，其中，The image display device according to any one of [1] to [3], wherein,

由从所述二维图像形成装置射出的所述第1图像光形成的二维图像显示在所述用户的视野的大致整个区域，A two-dimensional image formed by the first image light emitted from the two-dimensional image forming device is displayed on substantially the entire area of the user's field of view,

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像显示在所述用户的视野的大致中心部。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device is displayed substantially in the center of the user's field of view.

[6][6]

根据[1]至[5]中任一项所述的图像显示装置，其中，The image display device according to any one of [1] to [5], wherein,

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像在所述用户的视野中用矩形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device is displayed in a rectangular range in the field of view of the user.

[7][7]

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像在所述用户的视野中用圆形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device is displayed in a circular area in the field of view of the user.

[8][8]

由从所述三维图像形成装置射出的所述第2图像光形成的三维图像在所述用户的视野中用椭圆形的范围显示。A three-dimensional image formed by the second image light emitted from the three-dimensional image forming device is displayed in an elliptical range in the field of view of the user.

[9][9]

根据[1]至[8]中任一项所述的图像显示装置，其中，The image display device according to any one of [1] to [8], wherein,

所述三维图像形成装置使用集成成像方式形成三维图像。The three-dimensional image forming device forms a three-dimensional image using an integrated imaging method.

[10][10]

所述三维图像形成装置使用张量显示方式形成三维图像。The three-dimensional image forming device forms a three-dimensional image using a tensor display method.

[11][11]

所述三维图像形成装置使用超多视角方式形成三维图像。The three-dimensional image forming device forms a three-dimensional image using a super multi-view method.

[12][12]

所述三维图像形成装置使用全息方式形成三维图像。The three-dimensional image forming device forms a three-dimensional image using holography.

[13][13]

所述三维图像形成装置通过在空间上多层化的像面形成三维图像。The three-dimensional image forming device forms a three-dimensional image with spatially multi-layered image planes.

[14][14]

所述三维图像形成装置通过在时间上多层化的像面形成三维图像。The three-dimensional image forming device forms a three-dimensional image with temporally multi-layered image planes.

[15][15]

根据[1]至[14]中任一项所述的图像显示装置，其中，The image display device according to any one of [1] to [14], wherein,

具备包含所述分束器和所述目镜的自由曲面透镜。A free-form surface lens including the beam splitter and the eyepiece is provided.

[16][16]

根据[1]至[15]中任一项所述的图像显示装置，其中，还具备视线检测装置。The image display device according to any one of [1] to [15], further comprising a line-of-sight detection device.

[17][17]

一种显示装置，a display device,

具备：框架，佩戴于用户的头部；以及having: a frame, worn on the user's head; and

该图像显示装置为[1]至[16]中任一项所述的图像显示装置。The image display device is the image display device described in any one of [1] to [16].