Disclosure of Invention
The present invention is directed to an integrated stereoscopic image display device, which provides a floating display effect to enable a viewer to view a stereoscopic image at a forward and oblique angle, and has uniform brightness distribution after imaging, so as to improve the viewing quality.
In order to solve the above technical problems, the present invention provides an integrated stereoscopic display device, which includes a display, a lens array layer and a gradient transmittance mask. The display is provided with a display surface and an image calculation unit; the lens array layer is arranged adjacent to the display surface of the display and comprises a plurality of lenses; the gradient penetration rate shield comprises a plurality of shielding units, the shielding units have gradient penetration rates, images which are not reconstructed and displayed on the display surface can be recombined through the lens array layer to be recombined into an integrated image so as to form a three-dimensional image, and the brightness distribution after imaging can be uniform through the gradient penetration rate shield.
Preferably, the penetration rate of a plurality of the shielding units increases or decreases from the center to the edge.
Preferably, the one lens corresponds to the one or more shielding units.
Preferably, the graded transmittance shield is disposed on a side of the lens array layer that is closer to or further from the display.
In order to solve the above technical problem, the present invention further provides an integrated stereoscopic display device, which includes a display and a lens array layer. The display is provided with a display surface and an image calculation unit; the lens array layer is arranged at a position close to a display surface of the display, the lens array layer comprises a plurality of lenses, light absorbing substances are added into the materials of the plurality of lenses, so that the penetration rate of the plurality of lenses is inversely proportional to the thickness, the function of gradual change of the penetration rate is achieved, images which are not reconstructed and displayed on the display surface can be recombined through the lens array layer to form integrated images again, a three-dimensional image is formed, and the brightness distribution is uniform after imaging through the light absorbing substances.
In order to solve the above technical problem, the present invention further provides an integrated stereoscopic display device, which includes a display and a gradual transmittance mask. The display is provided with a display surface and an image calculation unit; the display comprises a display surface, a pinhole array layer, a control layer and a control layer, wherein the pinhole array layer is arranged at the position close to the display surface of the display and comprises a body and a plurality of pinholes; the gradient penetration rate shield comprises a plurality of shielding units, the shielding units have gradient penetration rates, images which are not reconstructed and displayed on the display surface can be recombined through the pinhole array layer to be recombined into integrated images so as to form three-dimensional images, and the brightness distribution after imaging can be uniform through the gradient penetration rate shield.
Preferably, the penetration rate of a plurality of the shielding units increases or decreases from the center to the edge.
Preferably, the one pinhole corresponds to the one or more shielding units.
Preferably, the graded transmittance shield is disposed on a side of the pinhole array layer that is closer to or further from the display.
In order to solve the above technical problem, the present invention further provides an integrated stereoscopic display device, which includes a display and a gradual transmittance mask. The display comprises a liquid crystal panel, a backlight module and an image calculation unit, wherein the liquid crystal panel is provided with a display surface and can turn on pixels needing to be used and turn off pixels not needing to be used, and the backlight module comprises a plurality of light sources; the gradient penetration rate shield comprises a plurality of shielding units, the shielding units have gradient penetration rates, images which are not reconstructed and displayed on the display surface can be recombined through the light sources and the liquid crystal panel to form integrated images again so as to form three-dimensional images, and the brightness distribution after imaging can be uniform through the gradient penetration rate shield.
Preferably, the penetration rate of a plurality of the shielding units increases or decreases from the center to the edge.
Preferably, the one pixel to be used corresponds to the one or more shielding units.
Preferably, the graded transmittance shield is disposed at a side of the liquid crystal panel close to or far away from the backlight module.
The invention has the advantages that the invention can provide floating display effect, and can enable an observer to watch a three-dimensional image at forward and oblique angles, and the invention is provided with a gradual change penetration rate shield which comprises a plurality of shielding units, wherein the shielding units have gradual change penetration rates, and the brightness distribution after imaging is uniform by utilizing the effect of different penetration rates of the shielding units, so that grid feeling can not be caused.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, which is to be read in connection with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to be limiting.
Detailed Description
[ first embodiment ]
The present invention provides an integrated stereoscopic image display apparatus, which can be applied to various industries such as optoelectronics, medical treatment, military affairs, exhibition, display, educational entertainment, and consumer electronics, and the integrated stereoscopic image display apparatus can be applied to displays such as active type or passive type, without limitation.
Referring to fig. 1 and 2, the integrated stereoscopic image display apparatus includes a display 1, alens array layer 2 and agradient transmittance mask 3, which can change the stereoscopic image frame seen by the viewer at the angle position by changing the display image, so that the viewer can view the stereoscopic image at other viewing angle positions.
The display 1 may be a general flat panel display, and the display 1 has adisplay surface 11 for displaying images. Thelens array layer 2 is disposed adjacent to thedisplay surface 11 of the display 1, i.e. thelens array layer 2 may be disposed above the display 1. Thelens array layer 2 may contact thedisplay surface 11 of the display 1, and thelens array layer 2 may be disposed at a distance from thedisplay surface 11 of the display 1, or an intermediate layer may be disposed between thedisplay surface 11 of the display 1 and thelens array layer 2.
The display 1 may be disposed at the lowest layer and is responsible for displaying a planar image that has not been subjected to light ray reproduction, and the planar image may be subjected to light ray redistribution and combination by the lens array of thelens array layer 2, so as to display a recombined three-dimensional stereoscopic image. The display 1 of the first layer only needs to display the target image, and therefore may be any hardware configuration, including a mobile phone, a flat panel or a flat screen, the type and configuration of the display 1 are not limited, and the display 1 may also be a self-luminous display.
Thelens array layer 2 can be arranged on the uppermost layer, thelens array layer 2 has the effect of regulating and controlling the light field, and thelens array layer 2 can regulate and control the light angle of the three-dimensional object, so that the originally non-recombined planar image is redistributed and combined, and a viewer can see the three-dimensional image.
Thelens array layer 2 is made of a material with good optical properties, and the material of thelens array layer 2 is not limited. Thelens array layer 2 may include abase 21 and a plurality oflenses 22, the plurality oflenses 22 are disposed on a side of thebase 21, that is, the plurality oflenses 22 may be disposed on a side of thebase 21 away from the display 1, the arrangement and the configuration of thelens array layer 2 are not limited, the plurality oflenses 22 have a focusing function, and the image displayed on thedisplay surface 11 and not reconstructed can be recombined through thelens array layer 2 and recombined into an integrated image to form a stereoscopic image.
The present invention is characterized in that a three-dimensional stereoscopic image is viewed obliquely, and the oblique viewing mode means that a viewer can see the stereoscopic image without facing the display 1. In the conventional naked-eye three-dimensional display, most of the problems are that the viewing angle is not good, and the viewer cannot see the three-dimensional display at an oblique angle. In the present invention, the oblique viewing is a big feature, and the viewer has a visual angle limit on the left and right sides in the direction (zero-order viewing zone) opposite to the display 1, and once the visual angle is exceeded, the viewer sees no stereoscopic information corresponding to the viewing angle. In order to achieve the purpose of viewing the stereoscopic image in an oblique direction, the optical path is converged in the oblique direction by adopting an oblique angle display mode instead of a 0-order (forward) display mode, so that a viewer can view the stereoscopic image in the oblique direction. However, the integrated stereoscopic image display device of the present invention is equally applicable to viewing stereoscopic images at a forward angle.
The display 1 can be of any specification, as long as the algorithm is applicable, that is, the display 1 has animage calculation unit 12, the image used for the display 1 needs to be calculated by the image algorithm, and the calculation is matched with the structure of the lens array, so that various paths of light traveling of the display 1 are predicted, and the relative position of the image is calculated. Since the image algorithm is the prior art and is not the focus of the present invention, it will not be described in detail.
Thelens array layer 2 of the present invention has a very important relationship to the display effect, and as shown in fig. 3, the arrangement of the lens array can be a rectangular arrangement, so that thelenses 22 in every two adjacent rows can be arranged oppositely. As shown in fig. 4, the arrangement of the lens array may be a hexagonal arrangement, so that thelenses 22 in each two adjacent rows may be staggered, and thelenses 22 may be arranged in other ways to display 3D image information.
The micro-structure on thelens array layer 2 is a lens with focusing function, the specification of the micro-lens determines the focusing capability of the lens according to the refractive index n of the material, and the wavelength range of the light can be 300nm to 1100 nm. The single lenslet focal length case is shown in FIG. 5, which conforms to the lensmaking equation: 1/f ═ (n-1) (1/R1-1/R2). Where R1 and R2 are the radii of curvature on either side of the lens, respectively, f is the focal length of the lens and n is the refractive index of the lens. In addition, the lens diameter size is from 100um to 5mm, which is suitable for the pixel size of different display devices.
Thegradient transmittance mask 3 is disposed adjacent to thedisplay surface 11 of the display 1, thegradient transmittance mask 3 may be disposed on a side of thelens array layer 2 close to or away from the display 1, thegradient transmittance mask 3 may also be directly sprayed on a top surface or a bottom surface of thelens array layer 2, in this embodiment, thegradient transmittance mask 3 is disposed on a side of thelens array layer 2 close to the display 1, that is, thegradient transmittance mask 3 is disposed below thelens array layer 2. Thegradient transmittance mask 3 includes a plurality ofmask units 31, the plurality ofmask units 31 may be disposed on asubstrate 32, the plurality ofmask units 31 respectively correspond to the plurality oflenses 22, in the embodiment, themask units 31 are circular corresponding to thelenses 22, however, the shape of themask units 31 is not limited, and may also be other shapes, such as rectangular or hexagonal, etc. The shieldingunit 31 has a gradually changing transmittance, and the transmittance of the shieldingunit 31 can increase from the center to the edge, that is, the transmittance of the shieldingunit 31 is the lowest at the center and the transmittance of the shieldingunit 31 is the highest at the edge. In this embodiment, the shieldingunit 31 may include a plurality ofdots 311, the plurality ofdots 311 may be made of a semi-transparent or opaque material, and the density of the plurality ofdots 311 decreases from the center of the shieldingunit 31 to the edge, so that the transmittance of the shieldingunit 31 increases from the center to the edge.
Thegradual transmittance mask 3 can be achieved by printing ink jet or photomask exposure, and the patterns with different gray scales can achieve the effect of different transmittances. In addition, different materials can be sprayed to have different penetration rates. The plurality of shieldingunits 31 may correspond to the plurality oflenses 22, respectively, the plurality of shieldingunits 31 may not correspond to the plurality oflenses 22, for example, onelens 22 may correspond to the plurality of shieldingunits 31. In addition, the shieldingunits 31 do not necessarily correspond to all thelenses 22, that is, only some of thelenses 22 are provided with the shieldingunits 31 for reducing the light intensity, and theother lenses 22 are directly penetrated. In addition, the shieldingunits 31 are not necessarily completely graded, and may have different penetration rates (for example, four, five, or six). The plurality of shieldingunits 31 may also be a multi-layer structure, for example, each layer is a concentric circle with different size, and stacked together to form the gradedtransmittance shield 3.
In the embodiment, taking thelens 22 as an example, when the pixels under onelens 22 are fully lighted, after imaging, because the light output amount of the edge of thelens 22 is small, the central image of thelens 22 is brighter than the edge image of the lens, thereby causing a grid feeling. The shieldingunits 31 respectively correspond to thelenses 22, and the transmittance of the shieldingunits 31 can be increased from the center to the edge, so that the brightness of the central image of thelens 22 can be reduced to weaken the light intensity, and the effect of the shieldingunits 31 with different transmittances can be utilized to make the brightness distribution uniform after imaging, without causing grid feeling.
In some configurations, it is also possible to make the pattern dark in the middle and bright beside it, so in another embodiment of the present invention (as shown in fig. 12), the transmittance of the shieldingunit 31 can decrease from the center to the edge, i.e. the transmittance of the shieldingunit 31 is the highest at the center and the transmittance of the shieldingunit 31 is the lowest at the edge.
The invention provides an integrated type optical device which is suitable for forward and oblique viewing angles, and can control the light advancing direction of each position pixel in the device passing through an optical component by matching with hardware setting. The hardware system of the invention is a simple optical component, which comprises a display 1, alens array layer 2 and a gradientpenetration rate shield 3, and can be packaged into a suite, and the real image can be displayed in a three-dimensional space by using an integrated image principle and matching with a screen output picture signal through a special algorithm through the designed pixel size, system clearance, lens size and focal length.
In another embodiment of the present invention, the pixels of the display 1 can have different brightness by software, which is also equivalent to the effect of thegradient transmittance mask 3.
[ second embodiment ]
Referring to fig. 6, the structure of the present embodiment is substantially the same as that of the first embodiment, but in the present embodiment, the gradedtransmittance mask 3 is disposed on a side of thelens array layer 2 away from the display 1, that is, the gradedtransmittance mask 3 is disposed above thelens array layer 2. The shieldingunit 31 of the gradient penetration rate shielding 3 has gradient penetration rate, and the brightness distribution after imaging is uniform by using the effect of different penetration rates of the shieldingunit 31, so that grid feeling is not caused.
[ third embodiment ]
Referring to fig. 7, the structure of the present embodiment is substantially the same as that of the first embodiment, but the difference is that in the present embodiment, the gradedtransmittance shield 3 in the above embodiment is omitted, and thelight absorbing material 23 is directly added into the material of thelenses 22, so that the transmittance of thelenses 22 is inversely proportional to the thickness, and therefore the transmittance of the center of thelenses 22 is smaller than that of the edges of thelenses 22, that is, the center of thelenses 22 is thicker, the transmittance is lower, the edges of thelenses 22 are thinner, and the transmittance is higher, and thelenses 22 can provide the function of graded transmittance through thelight absorbing material 23, so that the brightness distribution after imaging is uniform, and no grid feeling is caused.
[ fourth embodiment ]
Referring to fig. 8, in the present embodiment, a pinhole array layer 4 is mainly used to replace thelens array layer 2 in the first embodiment, the integrated stereoscopic image display device includes a display 1, a pinhole array layer 4 and agradient transmittance mask 3, the display 1 may include aliquid crystal panel 13 and abacklight module 14, thedisplay surface 11 is located on theliquid crystal panel 13, thebacklight module 14 is close to theliquid crystal panel 13, and thebacklight module 14 may project a light source, so that the light passes through theliquid crystal panel 13 and then transmits information to the eyes of a user. In the present embodiment, the display 1 is a passive light emitting display, and in another embodiment, the display 1 may also be an active light emitting display, such as an OLED or LED display. In the present embodiment, the gradedtransmittance mask 3 is disposed on a side of the pinhole array layer 4 close to the display 1, that is, the gradedtransmittance mask 3 is disposed below the pinhole array layer 4, and the structure of the gradedtransmittance mask 3 is the same as that of the first embodiment, so that the description thereof is omitted.
The pinhole array layer 4 may be disposed adjacent to thedisplay surface 11 of the display 1, i.e. the pinhole array layer 4 may be disposed above the display 1. The pinhole array layer 4 may contact thedisplay surface 11 of the display 1, the pinhole array layer 4 may be spaced apart from thedisplay surface 11 of the display 1, or an intermediate layer may be disposed between thedisplay surface 11 of the display 1 and the pinhole array layer 4. The pinhole array layer 4 may also be arranged in the display 1 or in other suitable locations.
The display 1 may be arranged at the lowermost layer and is responsible for displaying a planar image which has not been subjected to light ray reproduction, and the planar image may be subjected to light ray redistribution and combination by the pinhole arrays of the pinhole array layer 4, thereby displaying a recombined three-dimensional image. The pinhole array layer 4 can be arranged on the uppermost layer, the pinhole array layer 4 has the effect of regulating and controlling the light field, the pinhole array layer 4 can regulate and control the light angle of the three-dimensional object, and original plane images which are not recombined are redistributed and combined, so that an observer can see the three-dimensional image.
The material of the pinhole array layer 4 is not limited, the pinhole array layer 4 includes abody 41 and a plurality ofpinholes 42, thebody 41 is made of opaque material, so that thebody 41 is an opaque member, and thebody 41 is a plate-shaped body. The plurality ofpinholes 42 are preferably circular holes, the plurality ofpinholes 42 are disposed on thebody 41, the plurality ofpinholes 42 can penetrate through two opposite sides (two sides) of thebody 41, the distance between every twoadjacent pinholes 42 is smaller than 5mm, the diameter of each pinhole 42 is smaller than 1mm, and the plurality ofpinholes 42 have a focusing function. The non-reconstructed images displayed on thedisplay surface 11 can be recombined by the plurality ofpinholes 42 by using the principle of the pinholes to be recombined into an integrated image to form a stereoscopic image. Thepinhole 42 may be hollow, or a light-transmitting material may be disposed in thepinhole 42 so that light can pass through thepinhole 42. The pinhole array layer 4 of the present invention has a very important relationship to the display effect, and the arrangement of the pinhole array may be a rectangular arrangement or a hexagonal arrangement, i.e. every two adjacent rows ofpinholes 42 may be arranged oppositely or in a staggered arrangement, which can all be used to display 3D image information. The shieldingunit 31 of the gradient penetration rate shielding 3 has gradient penetration rate, and the brightness distribution after imaging is uniform by using the effect of different penetration rates of the shieldingunit 31, so that grid feeling is not caused.
[ fifth embodiment ]
Referring to fig. 9, the structure of this embodiment is substantially the same as that of the fourth embodiment, except that in this embodiment, the gradedtransmittance mask 3 is disposed on a side of the pinhole array layer 4 away from the display 1, that is, the gradedtransmittance mask 3 is disposed above the pinhole array layer 4. The shieldingunit 31 of the gradient penetration rate shielding 3 has gradient penetration rate, and the brightness distribution after imaging is uniform by using the effect of different penetration rates of the shieldingunit 31, so that grid feeling is not caused.
[ sixth embodiment ]
Referring to fig. 10, in the present embodiment, the integrated stereoscopic display apparatus includes a display 1a and agradient transmittance mask 3. The display 1a includes aliquid crystal panel 12a, abacklight module 13a and animage calculation unit 14a, theliquid crystal panel 12a has adisplay surface 11a, thebacklight module 13a can project light source, so that the light passes through theliquid crystal panel 12a and then transmits information to the eyes of the user. In this embodiment, theliquid crystal panel 12a can turn on thepixels 121a that need to be used and turn off thepixels 122a that do not need to be used by software. Thebacklight module 13a includes a plurality oflight sources 131a, thelight sources 131a may be LEDs or OLEDs, and thelight sources 131a are disposed at intervals. The plurality oflight sources 131a may project light so that the light passes through theliquid crystal panel 12a and then transmits information to the eyes of the user. The planar image of the display 1a can pass through the plurality oflight sources 131a and theliquid crystal panel 12a, and further, a recombined three-dimensional image can be displayed.
Thegradient transmittance shield 3 may be disposed on a side of theliquid crystal panel 12a close to or far from thebacklight module 13a, thegradient transmittance shield 3 may also be directly sprayed on a top surface or a bottom surface of theliquid crystal panel 12a, and thegradient transmittance shield 3 may also be directly sprayed on a top surface or a bottom surface of thepixel 121a to be used. In the present embodiment, the structure of thegradation transmittance mask 3 is the same as that of the first embodiment, and thegradation transmittance mask 3 is disposed below theliquid crystal panel 12 a. The shieldingunit 31 of the gradient penetration rate shielding 3 has gradient penetration rate, and the brightness distribution after imaging is uniform by using the effect of different penetration rates of the shieldingunit 31, so that grid feeling is not caused.
[ seventh embodiment ]
Referring to fig. 11, the structure of the present embodiment is substantially the same as that of the sixth embodiment, except that in the present embodiment, the gradedtransmittance mask 3 is disposed on a side of theliquid crystal panel 12a away from thebacklight module 13a, that is, the gradedtransmittance mask 3 is disposed above theliquid crystal panel 12 a. The shieldingunit 31 of the gradient penetration rate shielding 3 has gradient penetration rate, and the brightness distribution after imaging is uniform by using the effect of different penetration rates of the shieldingunit 31, so that grid feeling is not caused.
[ advantageous effects of the embodiments ]
The invention has the advantages that the invention can provide floating display effect, and can enable an observer to watch a three-dimensional image at forward and oblique angles, and the invention is provided with a gradual change penetration rate shield which comprises a plurality of shielding units, the shielding units have gradual change penetration rates, and the brightness distribution after imaging is uniform by utilizing the effect of different penetration rates of the shielding units, thereby not causing grid feeling.
However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that all equivalent changes made by using the contents of the present specification and the drawings are included in the scope of the present invention, and it is well clarified that the present invention is not limited by the scope of the present invention.