CN114545646B - High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer - Google Patents
High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer Download PDFInfo
- Publication number
- CN114545646B CN114545646B CN202210173338.1A CN202210173338A CN114545646B CN 114545646 B CN114545646 B CN 114545646B CN 202210173338 A CN202210173338 A CN 202210173338A CN 114545646 B CN114545646 B CN 114545646B
- Authority
- CN
- China
- Prior art keywords
- polarized light
- quarter
- polarization
- wave plate
- display screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polarising Elements (AREA)
Abstract
The invention discloses a high-resolution integrated imaging 3D display device based on a retroreflector and a reflection polarizer, which consists of a 2D display, a reflection polarization module, two quarter-wave plates, two retroreflectors and a lens array. The reflection polarization module is used for separating a 3D sheet source on the 2D display screen into a polarization 3D sheet source I and a polarization 3D sheet source II, the two quarter-wave plates and the two return devices are used for converting polarized light and turning a light path, the polarization 3D sheet source I and the polarization 3D sheet source II are overlapped in a staggered mode to generate a high-resolution 3D sheet source after overlapping, the lens array achieves directional modulation on the high-resolution 3D sheet source after overlapping, and a high-resolution 3D image is reconstructed in space.
Description
Technical Field
The invention belongs to the technical field of three-dimensional display, and particularly relates to a high-resolution integrated imaging 3D display device based on a retroreflector and a reflection polarizer.
Background
Compared with 2D display, 3D display can truly reproduce the depth and motion parallax information of an object, accords with the visual experience of human watching the real object, strengthens the stereoscopic perception of the object by a viewer, and is an ultimate display mode pursued by human. Among the numerous 3D display technologies, the integrated imaging 3D display has the advantages of continuous parallax, full color display, no need of a coherent light source, simple structure, and the like, and has no convergence adjustment conflict, is considered as one of the 3D display technologies having a commercial prospect, and is gradually applied to advanced fields such as scientific research, medical treatment, military affairs, and the like. However, there is a mutual constraint between the resolution and the viewing angle and depth of field of the integrated imaging 3D display. In order to break through the limitation, on one hand, a mechanically moved lens array is used, the sampling frequency of the lens is increased, and the displayed film source and the moved lens array are synchronously switched through time division multiplexing to realize the enhancement of the 3D resolution; on the other hand, the direction of the directional backlight is changed by switching the point light source array in a time sequence, so that the multiplication of the point light sources is realized, and the voxels of the 3D image are increased to improve the 3D resolution. However, the mechanical moving method increases the complexity of the system, and the time division multiplexing method has a high requirement on the refresh rate of the display. Space division multiplexing is also commonly used to improve 3D resolution, and mainly by integrating projection pictures of multiple projectors onto one display screen through a relay optical system, the number of pixels and pixel density of a micro image array are improved, and then directionally modulating the micro image array through a lens array, more voxels are reconstructed in space to increase the resolution of 3D display. The method has the problems that a plurality of projectors are difficult to correct, the system is large, and the realization difficulty is high.
Disclosure of Invention
The invention provides a high-resolution integrated imaging 3D display device based on a retroreflector and a reflection polarizer, as shown in figure 1, the device is composed of a 2D display screen, a reflection polarization module, two quarter-wave plates, two retroreflectors and a lens array. The pixel diagonal direction of the 2D display screen is perpendicular to the plane of the quarter-wave plate I, the reflection polarization module and the 2D display screen are arranged at an included angle of 45 degrees, the quarter-wave plate I and the feedback device I are arranged in parallel, the quarter-wave plate I, the feedback device I and the 2D display screen are arranged at an included angle of 90 degrees, the reflection polarization module and the reflection polarization module form an included angle of 45 degrees, the quarter-wave plate II and the feedback device II are arranged in parallel, the quarter-wave plate II, the feedback device II and the 2D display screen are arranged in parallel in opposite directions, the reflection polarization module is arranged at intervals in the middle, the lens array is arranged in parallel with the quarter-wave plate I and the feedback device I, and the reflection polarization module is arranged at intervals in the middle.
The 2D display screen displays a 3D film source.
The reflection polarization module is composed of two reflection polarizing plates with relative displacement of D/2, wherein D is the pixel size of the 2D display screen, and the reflection polarization module and the plane where the 2D display screen is located form an included angle of 45 degrees. As shown in fig. 2, the reflective polarization module reflects the linearly polarized light I, transmits the linearly polarized light II with the polarization direction orthogonal to the linearly polarized light I, and is configured to separate the light emitted by the 2D display screen into the linearly polarized light I and the linearly polarized light II with the polarization directions orthogonal to each other.
The quarter-wave plate I and the quarter-wave plate II are used for providing pi/2 phase delay, as shown in figure 3, an included angle between the optical axis of the quarter-wave plate I and the linearly polarized light I is 45 degrees, the incident linearly polarized light I is converted into circularly polarized light I, and the circularly polarized light II orthogonal to the circularly polarized light I is converted into the linearly polarized light II. As shown in fig. 4, the included angle between the optical axis of the quarter-wave plate II and the linearly polarized light II is-45 °, the incident linearly polarized light II is converted into circularly polarized light II, and the circularly polarized light I is converted into the linearly polarized light I.
The retroreflector is formed by arraying pyramid prisms in an array manner, the pyramid prisms are formed by three mutually orthogonal reflection surfaces, incident light is sequentially reflected by the three reflection surfaces of the pyramid prisms, emergent light is parallel to the incident light direction and is opposite to the incident light direction, half-wave loss exists between the reflected light and the incident light, and circularly polarized light I is reflected by the retroreflector I and then is changed into circularly polarized light II orthogonal to the circularly polarized light I, as shown in the attached figure 5. The circularly polarized light II is reflected by the retroreflector II and becomes circularly polarized light I as shown in fig. 6.
And the lens array carries out directional modulation on the superposed high-resolution 3D film source, and reconstructs a high-resolution 3D image in space.
The formation process of the polarized 3D plate source I of the high-resolution integrated imaging 3D display device based on the retroreflector and the reflective polarizer is shown in the figure 7. And light emitted by the 2D display screen is separated into a linearly polarized light I part and a linearly polarized light II part through the reflection polarization module. The linearly polarized light I is reflected by the reflection polarization module and is transmitted to the quarter-wave plate I, the polarization direction of the linearly polarized light I and the optical axis direction of the quarter-wave plate I form 45 degrees, the linearly polarized light I is changed into the circularly polarized light I through the quarter-wave plate I, the circularly polarized light I returns through the return device I according to an incident light path, reflected light is changed into the circularly polarized light II due to half-wave loss, the circularly polarized light II is changed into the linearly polarized light II after passing through the quarter-wave plate I again, the linearly polarized light II returns along the incident light path direction, then transmits to the lens array through the reflection polarization module, and forms an image at the position of the 2D display screen, which is symmetrical relative to the reflection polarization plate I, so that the polarization 3D plate source I is formed. The formation process of the polarized 3D plate source II is shown in figure 8, wherein linearly polarized light II is transmitted by the reflection polarization module and is transmitted to the direction of the quarter-wave plate II, as the polarization direction of the linearly polarized light II and the optical axis direction of the quarter-wave plate II form-45 degrees, the linearly polarized light II is changed into circularly polarized light II through the quarter-wave plate II, and the circularly polarized light II returns to the circularly polarized light II through the return device II according to the incident light pathDue to half-wave loss, the reflected light is changed into circularly polarized light I, the circularly polarized light I passes through the quarter-wave plate II again and then is changed into linearly polarized light I, the linearly polarized light I encounters the reflecting polarizer II in the reflecting polarization module, is reflected by the reflecting polarizer II, propagates towards the lens array, and is imaged at the position of the 2D display screen, which is mirror-symmetric with respect to the reflecting polarizer II, so that a polarized 3D plate source II is formed. Due to the relative displacement of D/2 between the reflective polarizer I and the reflective polarizer II, the polarized 3D plate source I and the polarized 3D plate source II exist in the diagonal direction of the pixel
The polarized 3D film source I and the polarized 3D film source II are overlapped in a staggered manner to form a high-resolution 3D film source after overlapping, as shown in fig. 9. Each pixel of the polarization 3D film source II is overlapped with 4 adjacent pixels of the polarization 3D film source I to form 4 pixel points with the original pixel size of 1/2, as shown in fig. 10, specifically, the pixel II in the ith row and the jth column of the polarization 3D film source II (i,j) And the pixel I of the ith row and the jth column in the polarized 3D film source I (i,j) I +1 th row and j column (i+1,j) And the pixel I in the ith row and the j +1 th column (i,j+1) And pixel I of I +1 th row and j +1 th column (i+1,j+1) Superposed to form a pixel H (2i-1,2j-1) 、H (2i,2j-1) 、H (2i-1,2j) And H (2i,2j) When the number of pixels of the 2D display screen is m multiplied by n, m is the number of horizontal pixels of the 2D display screen, n is the number of vertical pixels of the 2D display screen, the number of pixels of the superposed high-resolution 3D film source is 4mn-2 (m + n) +1, and the superposed high-resolution 3D film source is subjected to directional regulation and control of the lens array to reconstruct a high-resolution 3D image in space.
Preferably, the pixel gray value of the 3D film source displayed by the 2D display screen is 2 times of the pixel gray values of the polarization 3D film source I and the polarization 3D film source II, so as to compensate the light energy loss of the reflection polarization module to incident light, and avoid the brightness loss and color distortion of the superimposed high-resolution 3D film source.
Preferably, the quarter-wave plate I and the quarter-wave plate II are broadband quarter-wave plates each providing a phase retardation of π/2 in the visible range.
The high-resolution integrated imaging 3D display device based on the feedback device and the reflection polaroids superposes the two polaroid sources in a staggered mode through polarization multiplexing, and the number of pixels of the superposed high-resolution 3D polaroid sources is greatly improved compared with the number of pixels of the 3D polaroid sources displayed on a 2D display screen, so that the limitation of the space bandwidth product of the conventional display is broken through, the device can flexibly adjust the relative displacement between the two reflection polaroids to adapt to the displays with various parameters, and the 3D resolution is enhanced.
Drawings
Fig. 1 is a schematic diagram of a high resolution integrated imaging 3D display device based on a retroreflector and reflective polarizer according to the present invention.
Fig. 2 is a schematic diagram of the reflective polarization module for reflecting the linearly polarized light I and transmitting the linearly polarized light II.
Fig. 3 is a schematic diagram of modulation of linearly polarized light I and circularly polarized light II by the quarter-wave plate I.
Fig. 4 is a schematic diagram of the modulation of linearly polarized light II and circularly polarized light I by the quarter-wave plate II.
Fig. 5 is a schematic diagram of the modulation of circularly polarized light I by the feedback device I.
Fig. 6 is a schematic diagram of the modulation of circularly polarized light II by the feedback device II.
FIG. 7 is a schematic diagram of the formation of a polarized 3D plate source I.
FIG. 8 is a schematic diagram of the formation of a polarized 3D plate source II.
FIG. 9 is a schematic diagram of the dislocation superposition of the polarized 3D plate source I and the polarized 3D plate source II.
Fig. 10 is a schematic diagram of a superimposed high resolution 3D film source.
The reference numbers in the figures are:
100 The high-resolution 3D display screen comprises a 2D display screen, a 101D sheet source, a 200 reflection polarization module, a 201 reflection polarization sheet I, a 202 reflection polarization sheet II, a 301 quarter-wave plate I, a 302 quarter-wave plate I, a 401 returning device I, a 402 returning device II, a 5 lens array, a 600 superposed high-resolution 3D sheet source, a 601 superposed pixel of the high-resolution 3D sheet source, a 610 polarization 3D sheet source I, a 620 polarization 3D sheet source II, a 7 high-resolution 3D image, 801 linearly polarized light I,802 linearly polarized light II,901 circularly polarized light I and 902 circularly polarized light II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The invention is described in further detail below with reference to an exemplary embodiment of a high resolution integrated imaging 3D display device based on a retroreflector and reflective polarizer. It should be noted that the following examples are only for illustrative purposes and should not be construed as limiting the scope of the present invention, and that the skilled person in the art may make modifications and adaptations of the present invention without departing from the scope of the present invention.
The invention provides a high-resolution integrated imaging 3D display device based on a retro-reflector and a reflective polarizer, which comprises a 2D display screen 100, a reflective polarization module 200, a quarter-wave plate I301, a quarter-wave plate II302, a retro-reflector I401, a retro-reflector I402 and a lens array 5, as shown in figure 1. The pixel diagonal direction of the 3D plate source 101 on the 2D display screen 100 is perpendicular to the plane of the quarter-wave plate I301, the reflection polarization module 200 and the 2D display screen 100 form an included angle of 45 degrees, the quarter-wave plate I301 and the return device I401 are placed in parallel, the quarter-wave plate I301, the return device I401 and the 2D display screen 100 form an included angle of 90 degrees, the quarter-wave plate I301, the return device I401 and the reflection polarization module 200 form an included angle of 45 degrees, the quarter-wave plate II302 and the return device II 402 are placed in parallel, the quarter-wave plate II302, the return device II 402 and the 2D display screen 100 are placed in parallel in opposite directions, the reflection polarization module 200 is arranged at the middle interval, the lens array 5, the quarter-wave plate I301 and the return device I401 are placed in parallel, and the reflection polarization module 200 is arranged at the middle interval.
In this embodiment, the linearly polarized light I801 is S-linearly polarized light, the linearly polarized light II 802 is P-linearly polarized light, the circularly polarized light I901 is left-handed circularly polarized light, and the circularly polarized light II 902 is right-handed circularly polarized light. The resolution of the 2D display screen 100 is 2160 × 1620 pixels, which is used for displaying the 3D film source 101, the pixel size D is 0.096mm, and the gray value of the pixel of the 3D film source 101 on the 2D display screen 100 is 2 times of the gray value of the pixel of the polarized 3D film source I610 and the polarized 3D film source II 620.
The reflective polarization module 200 is composed of two reflective polarizers, and is disposed at an included angle of 45 degrees with respect to the plane of the 2D display screen 100, the relative displacement between the reflective polarizer I201 and the reflective polarizer II 202 is 0.048mm, the reflective polarization module 200 reflects the linearly polarized light I801, and transmits the linearly polarized light II 802 orthogonal to the direction of the linearly polarized light I801, as shown in fig. 2.
The quarter wave plate I301 and the quarter wave plate II302 are broadband quarter wave plates, and provide a phase retardation of pi/2 to visible light. As shown in fig. 3, an included angle between the optical axis of the quarter-wave plate I301 and the S-linearly polarized light is 45 °, the incident S-linearly polarized light is converted into left-handed circularly polarized light, and the right-handed circularly polarized light is converted into P-linearly polarized light. As shown in fig. 4, an included angle between the optical axis of the quarter-wave plate II302 and the P-polarized light is-45 °, the incident P-polarized light is converted into right-handed circularly polarized light, and the left-handed circularly polarized light is converted into S-polarized light.
The feedback device I401 reflects the left-handed circularly polarized light for three times and then emits the light in parallel and in the direction opposite to the incident light, the reflected light and the incident light have half-wave loss, and the left-handed circularly polarized light is changed into right-handed circularly polarized light, as shown in fig. 5. The right-handed circularly polarized light is reflected by the retro-reflector II 402 and becomes left-handed circularly polarized light as shown in fig. 6.
The formation process of the polarized 3D plate source I610 of the high-resolution integrated imaging 3D display device based on the retroreflector and the reflective polarizer is shown in the figure 7. The light emitted by the 2D display screen 100 is first separated into two parts, i.e., S-linear polarized light and P-linear polarized light, by the reflective polarization module 200. The S linearly polarized light is reflected by the polarization module 200 and is transmitted to the quarter-wave plate I301, the S linearly polarized light is changed into left-handed circularly polarized light through the quarter-wave plate I301, the left-handed circularly polarized light returns through the return device I401 according to an incident light path and is changed into right-handed circularly polarized light, the right-handed circularly polarized light is changed into P linearly polarized light after passing through the quarter-wave plate I301 again, and then the P linearly polarized light penetrates through the reflection polarization module 200 and is transmitted to the quarter-wave plate I301The direction of the lens array 5 is transmitted, and the 2D display screen 100 is imaged at a position which is mirror-symmetrical with respect to the reflecting polarizer I201, so that a polarized 3D film source I610 is formed. The forming process of the polarization 3D sheet source II 620 is as shown in fig. 8, wherein P-polarized light is transmitted by the polarization module 200 and propagates toward the quarter-wave plate II302, the P-polarized light is changed into right-handed circularly polarized light by the quarter-wave plate II302, the right-handed circularly polarized light returns through the feedback device II 402 according to an incident light path, reflected light is changed into left-handed circularly polarized light, the left-handed circularly polarized light is changed into S-polarized light after passing through the quarter-wave plate II 402 again, the S-polarized light first encounters the reflection polarizer II 202 in the reflection polarization module 200, is reflected by the reflection polarizer II 202 and propagates toward the lens array 5, and forms an image at a position where the 2D display screen is mirror-symmetric with respect to the reflection polarizer II 202, thereby forming the polarization 3D sheet source II 620. Due to the relative displacement of 0.048mm between the reflective polarizer I201 and the polarizer II 202, the polarized 3D plate source I610 and the polarized 3D plate source II 620 have relative displacement of 0.068mm in the diagonal direction of the pixel, and the polarized 3D plate source I610 and the polarized 3D plate source II 620 are superposed in a staggered mode, as shown in FIG. 9. Each pixel of the polarized 3D film source II 620 is overlapped with 4 adjacent pixels of the polarized 3D film source I610 to form 4 pixels with a pitch of 0.048mm, as shown in FIG. 10, specifically, the pixel II of the 2 nd row and the 2 nd column in the polarized 3D film source II 620 (2,2) And I of the 2 nd row and 2 nd column in the polarized 3D plate source I610 (2,2) Row 3, column 2I (3,2) Line 2, column 3I (2,3) And I of row 3, column 3 (3,3) Superposed to form a pixel H (3,3) 、H (4,3) 、H (3,4) And H (4,4) The number of pixels of the superimposed high-resolution 3D film source 600 is 4319 × 3239, and the superimposed high-resolution 3D film source 600 realizes directional control through the lens array 5, so as to reconstruct a high-resolution 3D image 7 in space.
In this embodiment, two polarizer sources are superposed in a staggered manner by polarization multiplexing to form a superposed high-resolution 3D sheet source 600, and the resolution of the 3D sheet source is increased from 2160 × 1620 to 4319 × 3239, so that the limitation of the spatial bandwidth product of the existing display is broken through, and the device can flexibly adjust the relative displacement between the two reflective polarizers to adapt to displays with various parameters, thereby enhancing the 3D resolution.
Claims (5)
1. The high-resolution integrated imaging 3D display device based on the retro-reflector and the reflective polarizer is characterized by comprising a 2D display screen, a reflective polarization module, two quarter-wave plates, two retro-reflectors and a lens array, wherein the diagonal direction of pixels of the 2D display screen is perpendicular to the plane of the quarter-wave plate I, the reflective polarization module and the 2D display screen are placed at an included angle of 45 degrees, the quarter-wave plate I and the retro-reflector I are placed in parallel, the quarter-wave plate I and the retro-reflector I and the 2D display screen are at an included angle of 90 degrees, the included angle of 45 degrees is formed by the quarter-wave plate I and the reflective polarization module, the quarter-wave plate II and the retro-reflector II are placed in parallel, the quarter-wave plate II and the retro-reflector II and the 2D display screen are placed in opposite directions and parallel, the reflective polarization module is arranged at intervals in the middle, the lens array is placed in parallel with the quarter-wave plate I and the retro-reflector I, and the reflective polarization module is arranged at intervals in the middle;
the 2D display screen displays a 3D film source;
the reflection polarization module consists of two reflection polarizing plates with relative displacement of D/2, wherein D is the size of a pixel of the 2D display screen, the reflection polarization module reflects linearly polarized light I, and transmits linearly polarized light II with the polarization direction orthogonal to the linearly polarized light I;
the quarter-wave plate I and the quarter-wave plate II are used for providing phase delay of pi/2, the quarter-wave plate I converts incident linearly polarized light I into circularly polarized light I, and converts circularly polarized light II orthogonal to the circularly polarized light I into linearly polarized light II, the quarter-wave plate II converts the incident linearly polarized light II into circularly polarized light II, and converts the circularly polarized light I into the linearly polarized light I;
the circular polarization I is changed into circular polarization II orthogonal to the circular polarization I after being reflected by the return device I, and the circular polarization II is changed into the circular polarization I after being reflected by the return device II;
and the lens array carries out directional modulation on the superposed high-resolution 3D film source, and reconstructs a high-resolution 3D image in space.
2. The high resolution integrated imaging 3D display device based on a retro-reflector and a reflective polarizer according to claim 1, wherein the light emitted from the 2D display screen is separated into two parts of linearly polarized light I and linearly polarized light II by the reflective polarization module, wherein the linearly polarized light I is reflected by the reflective polarization module and propagates toward the quarter-wave plate I, since the polarization direction of the linearly polarized light I is 45 ° to the optical axis direction of the quarter-wave plate I, the linearly polarized light I passes through the quarter-wave plate I to become the circularly polarized light I, the circularly polarized light I passes through the retro-reflector I to return back along the incident path, and due to a half-wave loss, the reflected light becomes the circularly polarized light II, the circularly polarized light II passes through the quarter-wave plate I again to become the linearly polarized light II, the linearly polarized light II returns along the incident path, then transmits through the reflective polarization module to the lens array, and is imaged at a position where the 2D display screen is mirror symmetric with respect to the reflective polarizer I, forming the polarizer 3D polarizer I, wherein the polarizer II is transmitted through the reflective polarization module, propagates toward the quarter-reflector polarization module II, and the linearly polarized light II passes through the reflective polarization module II to propagate toward the quarter-reflector I, and the reflected polarization module II, and the circularly polarized light II, the circularly polarized light II passes through the reflective polarization lens II, and then returns to the reflected light I to the quarter-reflector I to the reflected polarization lens II, and then returns to the quarter-polarized light II, and the reflected polarization lens II, and the linearly polarized light II, and then passes through the reflected polarization module II, and imaging the 2D display screen at the position which is mirror-symmetrical relative to the reflecting polaroid II to form a polarized 3D film source II.
3. High resolution integrated imaging 3 based on retroreflectors and reflective polarizers according to claim 1D display device, characterized in that a polarized 3D plate source I and a polarized 3D plate source II are present along the diagonal of the pixel
The polarization 3D film source I and the polarization 3D film source II are overlapped in a staggered mode to form a high-resolution 3D film source after overlapping, each pixel of the polarization 3D film source II is overlapped with 4 adjacent pixels of the polarization 3D film source I to form 4 pixel points with the size of 1/2 of the original pixel size, and the pixel II of the ith row and the jth column in the polarization 3D film source II (i,j) And the pixel I at the ith row and the jth column in the polarized 3D film source I (i,j) I +1 th row and j column (i+1,j) And the pixel I in the ith row and the j +1 th column (i,j+1) And pixel I of I +1 th row and j +1 th column (i+1,j+1) Superposed to form a pixel H (2i-1,2j-1) 、H (2i,2j-1) 、H (2i-1,2j) And H (2i,2j) When the number of pixels of the 2D display screen is m multiplied by n, m is the number of horizontal pixels of the 2D display screen, n is the number of vertical pixels of the 2D display screen, and the number of pixels of the superposed high-resolution 3D film source is 4mn-2 (m + n) +1.
4. The high-resolution integrated imaging 3D display device based on the retroreflector and the reflective polarizer of claim 1, wherein the gray-scale value of the pixels of the 3D sheet source displayed on the 2D display screen is 2 times of the gray-scale value of the pixels of the polarized 3D sheet source I and the polarized 3D sheet source II, so as to compensate the optical energy loss of the reflective polarization module on the incident light, and avoid the brightness loss and the color distortion of the superimposed high-resolution 3D sheet source.
5. The high resolution integrated imaging 3D display device based on a retroreflector and reflective polarizer of claim 1, wherein the quarter-wave plate I and quarter-wave plate II are a broadband quarter-wave plate, each providing a phase retardation of pi/2 in the visible range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210173338.1A CN114545646B (en) | 2022-02-24 | 2022-02-24 | High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210173338.1A CN114545646B (en) | 2022-02-24 | 2022-02-24 | High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114545646A CN114545646A (en) | 2022-05-27 |
| CN114545646B true CN114545646B (en) | 2022-10-25 |
Family
ID=81676966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210173338.1A Active CN114545646B (en) | 2022-02-24 | 2022-02-24 | High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114545646B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271198A (en) * | 2007-03-19 | 2008-09-24 | 万双 | Circular polarization LCD stereoscopic display |
| CN104317062A (en) * | 2014-10-14 | 2015-01-28 | 四川大学 | Reflection polarization pinhole array based two-dimensional and three-dimensional switchable integrating imaging display device |
| CN107797299A (en) * | 2016-08-31 | 2018-03-13 | 乐金显示有限公司 | 3 d display device |
| CN112166370A (en) * | 2019-03-21 | 2021-01-01 | 京东方科技集团股份有限公司 | Integrated imaging display system |
| WO2021256392A1 (en) * | 2020-06-17 | 2021-12-23 | 株式会社有沢製作所 | Three-dimensional display device and circularly polarized glasses |
-
2022
- 2022-02-24 CN CN202210173338.1A patent/CN114545646B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271198A (en) * | 2007-03-19 | 2008-09-24 | 万双 | Circular polarization LCD stereoscopic display |
| CN104317062A (en) * | 2014-10-14 | 2015-01-28 | 四川大学 | Reflection polarization pinhole array based two-dimensional and three-dimensional switchable integrating imaging display device |
| CN107797299A (en) * | 2016-08-31 | 2018-03-13 | 乐金显示有限公司 | 3 d display device |
| CN112166370A (en) * | 2019-03-21 | 2021-01-01 | 京东方科技集团股份有限公司 | Integrated imaging display system |
| WO2021256392A1 (en) * | 2020-06-17 | 2021-12-23 | 株式会社有沢製作所 | Three-dimensional display device and circularly polarized glasses |
Non-Patent Citations (1)
| Title |
|---|
| Integral imaging 3D display system with improved depth of field using a;Shuang Li,et al;《Optics Communications 484 (2021) 126680》;20201208;1-7页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114545646A (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5726800A (en) | Autostereoscopic directional display apparatus | |
| CN101231414B (en) | Highly efficient 2D/3D switchable display apparatus | |
| US20080204874A1 (en) | Highly efficient 2d/3d switchable stereoscopic display apparatus | |
| WO2019041812A1 (en) | Display system and display method | |
| US10663851B2 (en) | Stereoscopic image display device | |
| CN107889552B (en) | High brightness image display apparatus using modulator asymmetric driver and method of operating the same | |
| CA2061707A1 (en) | Matrix display stereoscopic system | |
| KR20180073513A (en) | Apparatus for displaying holographic images and method of operating the same | |
| RU2625815C2 (en) | Display device | |
| KR20120045813A (en) | 3d glasses, 3d display apparatus having the same and method for controlling thereof | |
| CN112748570A (en) | Orthogonal characteristic grating-pixel array pair and near-to-eye light field display module based on same | |
| CN114545646B (en) | High-resolution integrated imaging 3D display device based on feedback device and reflection polarizer | |
| US10274755B2 (en) | Beam modulator and display apparatus using the same | |
| CN111458963B (en) | Front projection type 2D/3D mixed projection display device | |
| US10409221B2 (en) | Wide viewing angle holographic video camera and display using a phase plate | |
| GB2507462A (en) | Variable multi-view display | |
| TWI448731B (en) | Projection apparatus for providing multiple viewing angle images | |
| JP2003015079A (en) | Method for displaying stereoscopic image and display device | |
| KR101188595B1 (en) | Projection type stereoscopic image system and projection method of stereoscopic image | |
| CN114902117B (en) | Polarization conversion system, passive linear polarization 3D glasses and linear polarization 3D system | |
| JPH08160556A (en) | Stereoscopic video display device | |
| CN112305778B (en) | Method and system for expanding field angle of integrated imaging three-dimensional display system | |
| KR20180070154A (en) | Three-dimensional image projection apparatus | |
| JP2003202517A (en) | Stereoscopic image display device | |
| KR101866879B1 (en) | 3d optical filter for stereoscopic image display, and 3d apparatus using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |