技术领域Technical field
本申请涉及显示技术领域，具体而言，本申请涉及一种光学系统及显示装置。The present application relates to the field of display technology. Specifically, the present application relates to an optical system and a display device.
背景技术Background technique
HUD，即Head Up Display，也被叫做抬头显示装置。多用于汽车导航，飞行员驾驶等重要场景。HUD系统可以把时速和导航等信息，投影到驾驶员面前的挡风玻璃上，让驾驶员可以在平视前方的同时，接收所需要的信息。HUD, Head Up Display, is also called a head-up display device. It is mostly used in important scenarios such as car navigation and pilot driving. The HUD system can project speed and navigation information onto the windshield in front of the driver, allowing the driver to receive the required information while looking straight ahead.
目前的HUD导航显示系统，均为单光路显示，即平面成像，无3D 立体感，显示较为单调，用户体验感较差。The current HUD navigation display systems are all single-light path displays, that is, plane imaging without 3D stereoscopic effect. The display is relatively monotonous and the user experience is poor.
发明内容Contents of the invention
本申请针对现有方式的缺点，提出一种光学系统及显示装置，用于解决实现HUD系统的3D显示。In view of the shortcomings of the existing methods, this application proposes an optical system and a display device to solve the problem of realizing 3D display of the HUD system.
第一个方面，本申请实施例提供了一种光学系统，该光学系统包括分光元件、偏光处理结构和偏光选择器件；In a first aspect, embodiments of the present application provide an optical system, which includes a spectroscopic element, a polarization processing structure and a polarization selection device;
所述分光元件被配置为对第一S偏振光进行反射至偏光选择器件上使得所述偏光选择器件对所述第一S偏振光进行反射以形成第一图像；The spectroscopic element is configured to reflect the first S-polarized light onto the polarization selection device such that the polarization selection device reflects the first S-polarization light to form a first image;
所述偏光处理结构对所述第一P偏振光的方向进行调整，使得方向调整后的所述第一P偏振光再透过所述分光元件投射至所述偏光选择器件，使得所述偏光选择器件对方向调整后的所述第一P偏振光进行透射以形成第二图像；The polarization processing structure adjusts the direction of the first P-polarized light, so that the direction-adjusted first P-polarized light is projected to the polarization selection device through the light splitting element, so that the polarization selection device The device transmits the direction-adjusted first P-polarized light to form a second image;
所述第一S偏振光和所述第一P偏振光为相邻两帧显示画面的显示光线，且所述第一图像和所述第二图像叠加实现3D显示。The first S-polarized light and the first P-polarized light are the display light of two adjacent frames of display images, and the first image and the second image are superimposed to achieve 3D display.
可选地，所述分光元件包括分光层和与所述分光层连接的支撑结构，所述分光层对P偏振光透过对S偏振光进行反射，所述支撑结构对所述分光层进行支撑。Optionally, the light splitting element includes a light splitting layer and a support structure connected to the light splitting layer. The light splitting layer transmits P polarized light and reflects S polarized light. The support structure supports the light splitting layer. .
可选地，所述偏光处理结构包括第一组件和第二组件；所述第一组件用于将所述第一P偏振光转换为第二S偏振光，再将所述第二S偏振光反射至所述分光元件，以使所述分光元件将所述第二S偏振光反射至所述第二组件；所述第二组件用于将所述第二S偏振光转换为第二P偏振光，再将所述第二P偏振光反射至所述分光元件，以使所述第二P偏振光透过所述分光元件投射至所述偏光选择器件以形成所述第二图像。Optionally, the polarization processing structure includes a first component and a second component; the first component is used to convert the first P-polarized light into a second S-polarized light, and then convert the second S-polarized light into Reflected to the spectroscopic element, so that the spectroscopic element reflects the second S-polarized light to the second component; the second component is used to convert the second S-polarized light into a second P-polarized light light, and then reflects the second P-polarized light to the light splitting element, so that the second P-polarized light passes through the light splitting element and is projected to the polarization selection device to form the second image.
可选地，所述第一组件包括第一1/4玻片和第一反射层，所述第一1/4 玻片位于所述分光元件远离所述第一S偏振光入射的一侧，所述第一反射层位于所述第一1/4玻片远离所述分光元件的一侧；所述第二组件包括第二1/4玻片和第二反射层，所述第二1/4玻片位于所述分光元件远离所述第一S偏振光出射的一侧，所述第二反射层位于所述第二1/4玻片远离所述分光元件的一侧。Optionally, the first component includes a first 1/4 glass plate and a first reflective layer, the first 1/4 glass plate is located on the side of the light splitting element away from the incident side of the first S polarized light, The first reflective layer is located on the side of the first 1/4 glass plate away from the spectroscopic element; the second component includes a second 1/4 glass plate and a second reflective layer, and the second 1/4 glass plate is The 4 glass slide is located on the side of the spectroscopic element away from the emission of the first S-polarized light, and the second reflective layer is located on the side of the second 1/4 glass slide away from the spectroscopic element.
可选地，所述第一反射层为曲面反射镜和/或第二反射层为曲面反射镜。Optionally, the first reflective layer is a curved mirror and/or the second reflective layer is a curved mirror.
可选地，所述分光元件包括分光层，所述分光层对P偏振光透过对S 偏振光进行反射。Optionally, the light-splitting element includes a light-splitting layer that transmits P-polarized light and reflects S-polarized light.
第二个方面，本申请实施例提供了一种显示装置，该显示装置包括：In a second aspect, embodiments of the present application provide a display device, which includes:
上述的光学系统；The above-mentioned optical system;
图像源，被配置为按照设定程序对显示画面进行显示，并将显示光线投射至所述分光元件，相邻两帧显示画面的显示光线分别为S偏振光和P 偏振光，并且相邻两帧显示画面的显示光线经过所述光学系统处理后分别形成第一图像和第二图像，所述第一图像和所述第二图像叠加形成3D显示。The image source is configured to display the display screen according to the set program and project the display light to the spectroscopic element. The display light of the two adjacent frames of the display screen is S-polarized light and P-polarized light respectively, and the two adjacent frames are S-polarized light and P-polarized light. The display light of the frame display screen is processed by the optical system to form a first image and a second image respectively, and the first image and the second image are superimposed to form a 3D display.
可选地，所述显示装置还包括透镜组，位于所述图像源和所述光学系统之间且包括至少一个透镜，所述透镜用于对所述形成的所述第一图像和所述第二图像的尺寸进行调整。Optionally, the display device further includes a lens group located between the image source and the optical system and including at least one lens, the lens being used to image the formed first image and the third image. The size of the second image is adjusted.
可选地，所述图像源为显示屏，所述显示屏的切换相邻两帧显示画面的切换频率大于或等于100HZ。Optionally, the image source is a display screen, and the switching frequency of the display screen between two adjacent frames is greater than or equal to 100HZ.
可选地，所述显示装置还包括：Optionally, the display device further includes:
视觉采集系统，用于采集用户的双眼信息；Vision acquisition system, used to collect information from the user's eyes;
调整系统，与所述光学系统和所述图像源连接，被配置为根据所述双眼信息调整所述光学系统与所述图像源之间的距离、所述光学系统与所述偏光选择器件之间的距离以及所述显示光线与水平面之间的夹角。an adjustment system, connected to the optical system and the image source, configured to adjust the distance between the optical system and the image source, the distance between the optical system and the polarization selection device according to the binocular information distance and the angle between the display light and the horizontal plane.
可选地，所述显示装置为HUD显示装置。Optionally, the display device is a HUD display device.
本申请实施例提供的技术方案带来的有益技术效果是：The beneficial technical effects brought by the technical solutions provided by the embodiments of this application are:
本申请实施例提供的光学系统和显示装置，能够对S偏振光进行反射，并对P偏振光进行调整，使得S偏振光和P偏振光经过光学系统分别形成的第一图像和第二图像，而第一图像和第二图像的叠加能够为用户提供 3D观看体验。The optical system and display device provided by the embodiments of the present application are capable of reflecting S-polarized light and adjusting P-polarized light, so that the first image and the second image formed by S-polarized light and P-polarized light respectively through the optical system, The superposition of the first image and the second image can provide the user with a 3D viewing experience.
本申请附加的方面和优点将在下面的描述中部分给出，这些将从下面的描述中变得明显，或通过本申请的实践了解到。Additional aspects and advantages of the invention will be set forth in part in the description which follows, and will be obvious from the description, or may be learned by practice of the invention.
附图说明Description of the drawings
本申请上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
图1为本申请实施例提供的一种光学系统对第一S偏振光进行处理的光路图；Figure 1 is an optical path diagram for processing first S-polarized light by an optical system provided by an embodiment of the present application;
图2为本申请实施例提供的一种光学系统对第一P偏振光进行处理的光路图；Figure 2 is an optical path diagram for processing first P-polarized light by an optical system provided by an embodiment of the present application;
图3为本申请实施例提供的光学系统中分光元件的结构示意图；Figure 3 is a schematic structural diagram of a spectroscopic element in an optical system provided by an embodiment of the present application;
图4为本申请实施例提供的一种包括光学系统的显示装置的结构示意图；Figure 4 is a schematic structural diagram of a display device including an optical system provided by an embodiment of the present application;
图5为本申请实施例提供的一种显示装置的框架结构示意图。FIG. 5 is a schematic diagram of the frame structure of a display device provided by an embodiment of the present application.
附图标记：Reference signs:
1-光学系统；11-分光元件；111-分光层；112-支撑结构；12-偏光处理结构；121-第一组件；1211-第一1/4玻片；1212-第一反射层；122-第二组件；1221-第二1/4玻片；1222-第二反射层；13-偏光选择器件；1-Optical system; 11-Spectral element; 111-Spectral layer; 112-Support structure; 12-Polarization processing structure; 121-First component; 1211-First 1/4 glass slide; 1212-First reflective layer; 122 -The second component; 1221-the second 1/4 glass slide; 1222-the second reflective layer; 13-polarization selection device;
2-图像源；2-image source;
3-用户的双眼；3-The user’s eyes;
4-透镜组；41-第一透镜；42-第二透镜。4-lens group; 41-first lens; 42-second lens.
具体实施方式Detailed ways
下面详细描述本申请，本申请的实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的部件或具有相同或类似功能的部件。此外，如果已知技术的详细描述对于示出的本申请的特征是不必要的，则将其省略。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能解释为对本申请的限制。The present application is described in detail below, and examples of embodiments of the present application are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. Furthermore, detailed descriptions of known technologies are omitted if they are unnecessary to illustrate the features of the present application. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be construed as limiting the present application.
本技术领域技术人员可以理解，除非另外定义，这里使用的所有术语 (包括技术术语和科学术语)，具有与本申请所属领域中的普通技术人员的一般理解相同的意义。还应该理解的是，诸如通用字典中定义的那些术语，应该被理解为具有与现有技术的上下文中的意义一致的意义，并且除非像这里一样被特定定义，否则不会用理想化或过于正式的含义来解释。It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It should also be understood that terms, such as those defined in general dictionaries, are to be understood to have meanings consistent with their meaning in the context of the prior art, and are not to be used in an idealistic or overly descriptive manner unless specifically defined as here. to explain the formal meaning.
本技术领域技术人员可以理解，除非特意声明，这里使用的单数形式“一”、“一个”、“所述”和“该”也可包括复数形式。应该进一步理解的是，本申请的说明书中使用的措辞“包括”是指存在特征、整数、步骤、操作、元件和/或组件，但是并不排除存在或添加一个或多个其他特征、整数、步骤、操作、元件、组件和/或它们的组。Those skilled in the art will understand that, unless expressly stated otherwise, the singular forms "a", "an", "the" and "the" used herein may also include the plural form. It should be further understood that the word "comprising" as used in the description of this application refers to the presence of features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, integers, Steps, operations, elements, components and/or groups thereof.
HUD多用于汽车导航，飞行员驾驶等重要场景。HUD系统可以把时速和导航等信息，投影到驾驶员面前的风挡玻璃上，让驾驶员可以在平视前方的同时，接收所需要的信息。目前的HUD导航显示系统，均为单光路显示，即平面成像，无3D立体感，显示较为单调，用户体验感较差。HUD is mostly used in important scenarios such as car navigation and pilot driving. The HUD system can project speed and navigation information onto the windshield in front of the driver, allowing the driver to receive the required information while looking straight ahead. The current HUD navigation display systems are all single-light path displays, that is, plane imaging without 3D stereoscopic effect. The display is relatively monotonous and the user experience is poor.
本申请提供的光学系统及显示装置，旨在解决现有技术的如上技术问题。The optical system and display device provided by this application are intended to solve the above technical problems of the prior art.
图1为本申请实施例提供的一种光学系统对第一S偏振光进行处理的光路图；图2为本申请实施例提供的一种光学系统对第一P偏振光进行处理的光路图。本申请实施例提供了一种光学系统1，如图1和图2所示，该光学系统1包括分光元件11、偏光处理结构12和偏光选择器件13。FIG. 1 is an optical path diagram for processing the first S-polarized light by an optical system according to an embodiment of the present application; FIG. 2 is an optical path diagram for processing the first P-polarized light by an optical system according to an embodiment of the present application. The embodiment of the present application provides an optical system 1, as shown in Figures 1 and 2. The optical system 1 includes a spectroscopic element 11, a polarization processing structure 12 and a polarization selection device 13.
分光元件11被配置为对第一S偏振光进行反射至偏光选择器件13上使得偏光选择器件13对上述第一S偏振光进行反射，以在偏光选择器件 13上形成第一图像P1，并将第一P偏振光透射至偏光处理结构12。The spectroscopic element 11 is configured to reflect the first S-polarized light onto the polarization selection device 13 so that the polarization selection device 13 reflects the first S-polarization light to form the first image P1 on the polarization selection device 13, and The first P-polarized light is transmitted to the polarization processing structure 12 .
偏光处理结构12对第一P偏振光的方向进行调整，使得方向调整后的第一P偏振光再透过分光元件11投射至偏光选择器件13，使得偏光选择器件13对上述方向调整后的第一P偏振光进行透射以形成第二图像P2。The polarization processing structure 12 adjusts the direction of the first P-polarized light, so that the direction-adjusted first P-polarized light is projected to the polarization selection device 13 through the spectroscopic element 11, so that the polarization selection device 13 adjusts the direction of the first P-polarization light. A P-polarized light is transmitted to form a second image P2.
第一S偏振光和第一P偏振光为相邻两帧显示画面的显示光线，且第一图像P1和第二图像P2叠加实现3D显示。The first S-polarized light and the first P-polarized light are the display light of two adjacent frames of display images, and the first image P1 and the second image P2 are superimposed to achieve 3D display.
本实施例提供的光学系统1，能够对S偏振光进行反射，并对P偏振光进行调整，使得S偏振光和P偏振光经过光学系统1分别形成的第一图像P1和第二图像P2，而第一图像P1和第二图像P2的叠加能够为用户提供3D观看体验。The optical system 1 provided in this embodiment can reflect S-polarized light and adjust P-polarized light, so that the S-polarized light and the P-polarized light form the first image P1 and the second image P2 respectively after passing through the optical system 1. The superposition of the first image P1 and the second image P2 can provide the user with a 3D viewing experience.
可选地，如图1和图2所示，本实施例提供的光学系统中，偏光选择器件13对P偏振光进行透射对S偏振光进行反射，偏光选择器件13的材料包括金属或透光性塑料。具体地，当偏光选择器件13由透光性塑料制成时，不仅能够实现偏光选择器件13所需的效果，而且能够使用户观看到现实场景，从而实现3D显示画面和现实场景的融合。Optionally, as shown in Figures 1 and 2, in the optical system provided by this embodiment, the polarization selection device 13 transmits P-polarized light and reflects S-polarized light. The material of the polarization selection device 13 includes metal or light-transmitting material. Sexual plastic. Specifically, when the polarization selection device 13 is made of translucent plastic, it can not only achieve the effects required by the polarization selection device 13 but also enable the user to view real scenes, thus achieving the integration of 3D display images and real scenes.
可选地，如图1至图3所示，分光元件11包括分光层111和与分光层连接的支撑结构112，分光层111对P偏振光透过对S偏振光进行反射，支撑结构112对分光层111进行支撑。具体地，该支撑结构112为透明的立方体，分光层111设置在立方体的两条对角线所确定的平面上。Optionally, as shown in Figures 1 to 3, the light splitting element 11 includes a light splitting layer 111 and a support structure 112 connected to the light splitting layer. The light splitting layer 111 transmits P polarized light and reflects S polarized light. The support structure 112 The light splitting layer 111 provides support. Specifically, the support structure 112 is a transparent cube, and the light splitting layer 111 is disposed on a plane determined by two diagonals of the cube.
如图1和图2所示，本实施例提供的光学系统1中，偏光处理结构 12包括第一组件121和第二组件122；第一组件121用于将第一P偏振光转换为第二S偏振光，再将第二S偏振光反射至分光元件11，以使分光元件11将第二S偏振光反射至第二组件122；第二组件122用于将第二S 偏振光转换为第二P偏振光，再将第二P偏振光反射至分光元件11，以使第二P偏振光透过分光元件11投射至偏光选择器件13以形成第二图像 P2。As shown in Figures 1 and 2, in the optical system 1 provided by this embodiment, the polarization processing structure 12 includes a first component 121 and a second component 122; the first component 121 is used to convert the first P-polarized light into a second S-polarized light, and then reflects the second S-polarized light to the spectroscopic element 11, so that the spectroscopic element 11 reflects the second S-polarized light to the second component 122; the second component 122 is used to convert the second S-polarized light into a third The second P polarized light is then reflected to the spectroscopic element 11, so that the second P polarized light is transmitted through the spectroscopic element 11 and projected to the polarization selecting device 13 to form the second image P2.
具体地，第一P偏振光透过分光层111之后投射到第一组件121上，第一组件121将第一P偏振光转换为第二S偏振光并对第二S偏振光进行反射，被反射的第二S偏振光被分光层111反射后投射至第二组件122，第二组件122将第二S偏振光转换为第二P偏振光并对第二P偏振光进行反射，被反射的第二P偏振光照射到分光层111上，由于P偏振光能够透过分光层111，因此，第二P偏振光(即改变方向后的第一P偏振光)能够透过分光层111投射至偏光选择器件13以形成第二图像P2。Specifically, the first P-polarized light passes through the dichroic layer 111 and then is projected onto the first component 121. The first component 121 converts the first P-polarized light into the second S-polarized light and reflects the second S-polarized light. The reflected second S-polarized light is reflected by the dichroic layer 111 and then projected to the second component 122. The second component 122 converts the second S-polarized light into the second P-polarized light and reflects the second P-polarized light. The second P polarized light is irradiated onto the dichroic layer 111. Since the P polarized light can pass through the dichroic layer 111, the second P polarized light (that is, the first P polarized light after changing the direction) can be projected through the dichroic layer 111 to The polarization selection device 13 is used to form the second image P2.
如图1至图3所示，本实施例提供的光学系统1中，第一组件121包括第一1/4玻片1211和第一反射层1212，第一1/4玻片1211位于分光元件11远离第一S偏振光入射面a的一侧，第一反射层1212位于第一1/4 玻片1211远离分光元件11的一侧；第二组件122包括第二1/4玻片1221 和第二反射层1222，第二1/4玻片1221位于分光元件11远离第一S偏振光出射面b的一侧，第二反射层1222位于第二1/4玻片1221远离分光元件11的一侧。As shown in Figures 1 to 3, in the optical system 1 provided by this embodiment, the first component 121 includes a first 1/4 glass plate 1211 and a first reflective layer 1212. The first 1/4 glass plate 1211 is located on the spectroscopic element. 11 is on the side away from the first S-polarized light incident surface a, and the first reflective layer 1212 is located on the side of the first 1/4 glass plate 1211 away from the spectroscopic element 11; the second component 122 includes the second 1/4 glass plate 1221 and The second reflective layer 1222 and the second 1/4 glass plate 1221 are located on the side of the spectroscopic element 11 away from the first S-polarized light exit surface b. The second reflective layer 1222 is located on the side of the second 1/4 glass plate 1221 away from the spectroscopic element 11 one side.
具体地，第一S偏振光入射面a和第一S偏振光出射面b均为支撑结构112的表面，1/4玻片的作用是将P偏振光转换为S偏振光，而反射层的作用是对转换后的S偏振光进行反射。Specifically, the first S-polarized light incident surface a and the first S-polarized light exit surface b are both surfaces of the support structure 112. The function of the 1/4 glass plate is to convert P-polarized light into S-polarized light, and the reflective layer Its function is to reflect the converted S-polarized light.
进一步地，第一反射层1212为曲面反射镜和/或第二反射层1222为曲面反射镜，曲面反射镜对第一图像P1所在的焦平面和/或第二图像P2 所在的焦平面的位置进行调整，从而使第一图像P1所在的焦平面和第二图像P2所在的焦平面不重合。如此能够实现多焦面3D显示效果，多焦面的3D显示效果比传统的3D显示更真实，能够提升用户的观看体验。Further, the first reflective layer 1212 is a curved mirror and/or the second reflective layer 1222 is a curved mirror. The curved mirror has a position corresponding to the focal plane where the first image P1 is located and/or the focal plane where the second image P2 is located. Adjustment is made so that the focal plane of the first image P1 and the focal plane of the second image P2 do not coincide with each other. In this way, a multi-focal 3D display effect can be achieved. The multi-focal 3D display effect is more realistic than the traditional 3D display and can improve the user's viewing experience.
需要说明的是，第一反射层1212和第二反射层1222也可以均为平面反射镜，只是平面反射镜无法对第一图像P1和第二图像P2所在的焦平面进行调整，仅能实现传统的3D显示效果。It should be noted that the first reflective layer 1212 and the second reflective layer 1222 can also be plane mirrors, but the plane mirror cannot adjust the focal plane where the first image P1 and the second image P2 are located, and can only realize the traditional 3D display effect.
具体地，分光层111的中心点、第一1/4玻片1211的中心点和第一反射层1212的中心点在同一条直线上，分光层111的中心点、第二1/4 玻片1221的中心点和第二反射层1222的中心点也在同一条直线上，以便更好地对显示光线进行处理。Specifically, the center point of the light-splitting layer 111, the center point of the first 1/4 glass slide 1211 and the center point of the first reflective layer 1212 are on the same straight line, and the center point of the light-splitting layer 111, the center point of the second 1/4 glass slide 1212 are on the same straight line. The center point of 1221 and the center point of the second reflective layer 1222 are also on the same straight line, so as to better process the display light.
具体地，如图2所示的光学系统中，第一图像P1位于第一焦平面F1，第二图像P2位于第二焦平面F2上，第一焦平面F1和第二焦平面F2互相平行，需要说明的是，由于第一图像P1和第二图像P2是分别由相邻两帧显示画面的显示光线形成的，因此实际上第一图像P1和第二图像P2并非是同时存在的，只是由于视觉的暂留效应使得人眼感觉是同时看到了第一图像P1和第二图像P2，在此基础上，第一图像P1和第二图像P2的叠加形成了3D显示效果。Specifically, in the optical system shown in Figure 2, the first image P1 is located on the first focal plane F1, the second image P2 is located on the second focal plane F2, and the first focal plane F1 and the second focal plane F2 are parallel to each other, It should be noted that since the first image P1 and the second image P2 are respectively formed by the display light of two adjacent frames of display images, the first image P1 and the second image P2 do not actually exist at the same time. The persistence effect of vision makes the human eye feel that it sees the first image P1 and the second image P2 at the same time. On this basis, the superposition of the first image P1 and the second image P2 forms a 3D display effect.
基于同一发明构思，本申请实施例提供了一种显示装置，如图1和图 2所示，该显示装置包括：Based on the same inventive concept, embodiments of the present application provide a display device, as shown in Figures 1 and 2. The display device includes:
上述实施例中的光学系统1；Optical system 1 in the above embodiment;
图像源2，被配置为按照设定程序对显示画面进行显示，并将显示光线投射至分光元件11，相邻两帧显示画面的显示光线分别为S偏振光和P 偏振光，并且相邻两帧显示画面的显示光线经过光学系统1处理后分别形成第一图像P1和第二图像P2。Image source 2 is configured to display the display screen according to the setting program and project the display light to the spectroscopic element 11. The display light of the two adjacent frames of the display screen is S-polarized light and P-polarized light respectively, and the two adjacent frames are S-polarized light and P-polarized light. The display light of the frame display screen is processed by the optical system 1 to form a first image P1 and a second image P2 respectively.
本实施例提供的显示装置，包括上述实施例中的光学系统1，能够对 S偏振光进行反射，并对P偏振光进行调整，使得S偏振光和P偏振光经过光学系统1分别形成的第一图像P1和第二图像P2，而第一图像P1和第二图像P2的叠加能够为用户提供3D观看体验。The display device provided in this embodiment includes the optical system 1 in the above embodiment, which can reflect the S-polarized light and adjust the P-polarized light, so that the S-polarized light and the P-polarized light are respectively formed by the optical system 1. An image P1 and a second image P2, and the superposition of the first image P1 and the second image P2 can provide the user with a 3D viewing experience.
如图4所示，本实施例提供的显示装置还包括透镜组4，透镜组4位于图像源2和光学系统1之间且包括至少一个透镜，透镜组4用于对形成的第一图像P1和第二图像P2的尺寸进行调整。例如，图4所示的显示装置中的透镜组4包括第一透镜41和第二透镜42，第一透镜41和第二透镜42的参数可以相同，也可以根据实际需要选择不同参数的第一透镜41 和第二透镜42。As shown in Figure 4, the display device provided by this embodiment also includes a lens group 4. The lens group 4 is located between the image source 2 and the optical system 1 and includes at least one lens. The lens group 4 is used to image the formed first image P1. and adjust the size of the second image P2. For example, the lens group 4 in the display device shown in FIG. 4 includes a first lens 41 and a second lens 42. The parameters of the first lens 41 and the second lens 42 may be the same, or first lenses with different parameters may be selected according to actual needs. Lens 41 and second lens 42.
具体地，透镜的焦点、图像源2的中心点以及分光元件11的中心点位于同一条直线上，并通过调节透镜组4在上述直线上的位置能够调节第一图像P1和第二图像P2的尺寸，从而调节用户看到的3D图像的尺寸。Specifically, the focus of the lens, the center point of the image source 2 and the center point of the spectroscopic element 11 are located on the same straight line, and by adjusting the position of the lens group 4 on the above straight line, the first image P1 and the second image P2 can be adjusted. Size, thereby adjusting the size of the 3D image seen by the user.
如图4所示，本实施例提供的显示装置中，图像源2为显示屏，显示屏的切换相邻两帧显示画面的切换频率大于或等于100HZ，例如，在一具体实施例中，显示屏的切换相邻两帧显示画面的切换频率为120HZ。本实施例中的图像源2采用高频切换，从而使人眼暂留的上一帧图像和当前帧图像进行叠加来实现3D显示效果。As shown in Figure 4, in the display device provided by this embodiment, the image source 2 is a display screen, and the switching frequency of the display screen between two adjacent frames is greater than or equal to 100HZ. For example, in a specific embodiment, the display screen The switching frequency of the screen display between two adjacent frames is 120HZ. The image source 2 in this embodiment uses high-frequency switching, so that the previous frame image and the current frame image that the human eye has lingered on are superimposed to achieve a 3D display effect.
如图5所示，本实施例提供的显示装置还包括视觉采集系统和调整系统。视觉采集系统用于采集用户的双眼3信息；调整系统与光学系统1和图像源2连接，被配置为根据双眼信息调整光学系统1与图像源2之间的距离、光学系统1与偏光选择器件13之间的距离以及显示光线与水平面之间的夹角。As shown in Figure 5, the display device provided in this embodiment also includes a visual acquisition system and an adjustment system. The visual acquisition system is used to collect information about the user's eyes 3; the adjustment system is connected to the optical system 1 and the image source 2, and is configured to adjust the distance between the optical system 1 and the image source 2, the optical system 1 and the polarization selection device according to the information about the eyes. 13 and the angle between the light and the horizontal plane.
具体地，光学系统1与图像源2之间的距离是指光学系统1中的分光元件11与图像源2之间的距离，光学系统1与显示面之间的距离是指光学系统1中的分光元件11与偏光选择器件13之间的距离。此外，为例保证图像源2的中心与分光元件11的中心位于同一直线上，在调整显示光线(与图像源2所在平面垂直)与水平面之间的夹角的同时，也需要对分光系统进行同步旋转。Specifically, the distance between the optical system 1 and the image source 2 refers to the distance between the spectroscopic element 11 in the optical system 1 and the image source 2 , and the distance between the optical system 1 and the display surface refers to the distance between the optical system 1 and the display surface. The distance between the spectroscopic element 11 and the polarization selection device 13. In addition, for example, to ensure that the center of the image source 2 and the center of the spectroscopic element 11 are on the same straight line, while adjusting the angle between the display light (perpendicular to the plane where the image source 2 is located) and the horizontal plane, it is also necessary to adjust the spectroscopic system. Synchronized rotation.
本实施例通过对用户的双眼3信息进行采集，并根据双眼信息来调整光学系统1与图像源2之间的距离、光学系统1与偏光选择器件13之间的距离以及显示光线与水平面之间的夹角，从而实现对第一图像P1和第二图像P2位置的调整，即实现3D图像的位置调整，使3D图像形成于用户的最佳观看视角。This embodiment collects information from the user's eyes 3 and adjusts the distance between the optical system 1 and the image source 2, the distance between the optical system 1 and the polarization selection device 13, and the distance between the display light and the horizontal plane based on the information about both eyes. The included angle is such that the positions of the first image P1 and the second image P2 are adjusted, that is, the position of the 3D image is adjusted so that the 3D image is formed at the user's best viewing angle.
具体地，偏光选择器件13对P偏振光进行透射对S偏振光进行反射，偏光选择器件13的材料包括金属或透光性塑料。具体地，当偏光选择器件13由透光性塑料制成时，不仅能够实现偏光选择器件13所需的效果，而且能够使用户观看到现实场景，从而实现3D显示画面和现实场景的融合。Specifically, the polarization selection device 13 transmits P polarized light and reflects S polarization light, and the material of the polarization selection device 13 includes metal or translucent plastic. Specifically, when the polarization selection device 13 is made of translucent plastic, it can not only achieve the effects required by the polarization selection device 13 but also enable the user to view real scenes, thus achieving the integration of 3D display images and real scenes.
可选地，本实施例提供的显示装置为HUD显示装置。具体地，该HUD 显示装置可应用于汽车，也可以应用于飞行设备，基于此，偏光选择器件贴附在为汽车或飞行设备的前挡风玻璃上。Optionally, the display device provided in this embodiment is a HUD display device. Specifically, the HUD display device can be applied to cars or aircraft equipment. Based on this, the polarization selection device is attached to the front windshield of the car or aircraft equipment.
应用本申请实施例，至少能够实现如下有益效果：By applying the embodiments of this application, at least the following beneficial effects can be achieved:
本申请实施例提供的光学系统和显示装置，能够对S偏振光进行反射，并对P偏振光进行调整，使得S偏振光和P偏振光经过光学系统分别形成的第一图像和第二图像，而第一图像和第二图像的叠加能够为用户提供 3D观看体验。The optical system and display device provided by the embodiments of the present application are capable of reflecting S-polarized light and adjusting P-polarized light, so that the first image and the second image formed by S-polarized light and P-polarized light respectively through the optical system, The superposition of the first image and the second image can provide the user with a 3D viewing experience.
在本申请的描述中，需要理解的是，术语“中心”、“上”、“下”、“前”、“后”、“左”、“右”、“竖3D图像直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal" ", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than instructions. Or it is implied that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be construed as a limitation on the present application.
术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。The terms “first” and “second” are used for descriptive purposes only and shall not be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, unless otherwise stated, "plurality" means two or more.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be directly connected, or indirectly connected through an intermediary, or it can be internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood on a case-by-case basis.
在本说明书的描述中，具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。In the description of this specification, specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
以上仅是本申请的部分实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。The above are only some of the embodiments of the present application. It should be pointed out that those of ordinary skill in the art can also make several improvements and modifications without departing from the principles of the present application. These improvements and modifications should also be regarded as This is the protection scope of this application.
| Application Number | Priority Date | Filing Date | Title |
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| CN202110831535.3ACN113820869B (en) | 2021-07-22 | 2021-07-22 | Optical system and display device |
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| CN202110831535.3ACN113820869B (en) | 2021-07-22 | 2021-07-22 | Optical system and display device |
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| CN113820869Btrue CN113820869B (en) | 2023-09-26 |
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| CN202110831535.3AActiveCN113820869B (en) | 2021-07-22 | 2021-07-22 | Optical system and display device |
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