CN110989194A - Double-vision 3D display device based on gradient pitch rectangular pinhole array - Google Patents
Double-vision 3D display device based on gradient pitch rectangular pinhole array Download PDFInfo
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- 208000003164 Diplopia Diseases 0.000 title abstract description 5
- 208000029444 double vision Diseases 0.000 title abstract description 5
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- 239000011295 pitch Substances 0.000 claims description 232
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Abstract
The invention discloses a double-vision 3D display device based on a gradient pitch rectangular pinhole array, which is characterized by comprising a display screen, a gradient pitch polarization grating, a gradient pitch rectangular pinhole array, polarization glasses I and polarization glasses II; the number of the continuous rows of rectangular pinholes with the same horizontal pitch and positioned in the center of the gradient-pitch rectangular pinhole array is equal to twice the number of the continuous rows of rectangular pinholes with the same vertical pitch and positioned in the center of the gradient-pitch rectangular pinhole array; the number of rectangular pinholes in the horizontal direction of the gradual pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction; the horizontal pitch of the gradually-changed pitch rectangular pinhole array is gradually increased from the center to the left side and the right side; the vertical pitch of the gradual-change pitch rectangular pinhole array is gradually increased from the center to the upper side and the lower side.
Description
Technical Field
The invention relates to 3D display, in particular to a double-view 3D display device based on a gradient pitch rectangular pinhole array.
Background
The integrated imaging double-vision 3D display is the fusion of a double-vision display technology and an integrated imaging 3D display technology. It may enable the viewer to see different 3D pictures in different viewing directions. The traditional integrated imaging double-view 3D display device based on the gradual change pitch pinhole array has the following defects:
(1) the pitches of two adjacent pinholes are changed in an equal ratio relationship, so that the manufacturing difficulty and the cost are increased.
(2) The distance between two adjacent 3D pixels increases in an equal ratio relationship, which affects the uniformity of the 3D pixels and the viewing experience.
(3) Horizontal resolution is not equal to vertical resolution, and the problem of poor viewing experience caused by low resolution is further deepened.
(4) The viewing angle is narrow.
Disclosure of Invention
The invention provides a double-view 3D display device based on a gradient pitch rectangular pinhole array, which is characterized by comprising a display screen, a gradient pitch polarization grating, a gradient pitch rectangular pinhole array, a pair of polarized glasses I and a pair of polarized glasses II, wherein the display screen is provided with a display screen; the display screen is characterized in that the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are arranged in parallel and are correspondingly aligned; the gradient pitch polarization grating is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the horizontal pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the left side and the right side; the vertical pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the vertical pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the upper side and the lower side; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesP i The first stepjVertical pitch of row rectangular pinholesQ j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,qis the vertical pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,ais a plurality of continuous columns with the same horizontal pitch and positioned at the center of the gradient pitch rectangular pinhole arrayThe number of columns of rectangular pinholes,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the rectangular pinhole array with gradually changed pitch is shown; as shown in fig. 4, the gradient-pitch polarization grating is formed by alternately arranging a grating I and a grating II, and the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; the pitch of the grating I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying the gradient pitch rectangular micro-image array; as shown in fig. 5, the gradient pitch rectangular micro-image array is composed of rectangular image elements I and rectangular image elements II arranged alternately; the horizontal pitch and the vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and the vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I is correspondingly aligned with the grating I, and the rectangular image element II is correspondingly aligned with the grating II; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and the 3D image II can only be seen through the polarized glasses II.
Preferably, the number of columns of continuous multiple rows of rectangular pinholes with the same horizontal pitch at the center of the gradient-pitch rectangular pinhole array is equal to twice the number of rows of continuous multiple rows of rectangular pinholes with the same vertical pitch at the center of the gradient-pitch rectangular pinhole array.
Preferably, the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are equal, and the vertical widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are equal.
Preferably, the number of rectangular pinholes in the horizontal direction of the gradient-pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction.
Preferably, the horizontal pitch of the rectangular pinholes at the center of the gradient-pitch rectangular pinhole arraypPitch to verticalqSatisfies the following formula
Wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
Preferably, the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Respectively as follows:
wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches.
Preferably, the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graduated pitch rectangular pinhole array.
Preferably, the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; horizontal viewing perspective of each 3D imageθ 1Vertical viewing angleθ 2Respectively as follows:
wherein the content of the first and second substances,P 1is the horizontal pitch of the first column of rectangular pinholes of the gradually-changed pitch rectangular pinhole array,Q 1is the vertical pitch of the first row of rectangular pinholes of the gradual pitch rectangular pinhole array,wis the horizontal aperture width of the rectangular pinhole,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
Drawings
FIG. 1 is a schematic diagram of the structure and horizontal parameters of the present invention
FIG. 2 is a schematic diagram showing the parameters of the rectangular image element I and the grating I in the vertical direction
FIG. 3 is a schematic diagram of the parameters of the rectangular image element II and the grating II in the vertical direction
FIG. 4 is a schematic structural diagram of a graded-pitch polarization grating according to the present invention
FIG. 5 is a schematic structural diagram of a rectangular micro-image array with gradually changed pitches according to the present invention
The reference numbers in the figures are:
1. the display screen comprises a display screen, 2 gradient pitch polarization gratings, 3 gradient pitch rectangular pinhole arrays, 4 polarization glasses I, 5 polarization glasses II, 6 gratings I, 7 gratings II, 8 rectangular image elements I and 9 rectangular image elements II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The present invention will be described in further detail below with reference to a detailed description of an exemplary embodiment of a dual-view 3D display device based on a tapered-pitch rectangular pinhole array according to the present invention. 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 double-view 3D display device based on a gradient pitch rectangular pinhole array, which is characterized by comprising a display screen, a gradient pitch polarization grating, a gradient pitch rectangular pinhole array, a pair of polarized glasses I and a pair of polarized glasses II, wherein the display screen is provided with a display screen; the display screen is characterized in that the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are arranged in parallel and are correspondingly aligned; the gradient pitch polarization grating is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the horizontal pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the left side and the right side; the vertical pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the vertical pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the upper side and the lower side; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesP i The first stepjVertical pitch of row rectangular pinholesQ j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,qis the vertical pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,ais located at the center of the gradually-changed-pitch rectangular pinhole array and has the same horizontal pitchThe number of the rows of the continuous multi-row rectangular pinholes,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the rectangular pinhole array with gradually changed pitch is shown; as shown in fig. 4, the gradient-pitch polarization grating is formed by alternately arranging a grating I and a grating II, and the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; the pitch of the grating I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying the gradient pitch rectangular micro-image array; as shown in fig. 5, the gradient pitch rectangular micro-image array is composed of rectangular image elements I and rectangular image elements II arranged alternately; the horizontal pitch and the vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and the vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I is correspondingly aligned with the grating I, and the rectangular image element II is correspondingly aligned with the grating II; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and the 3D image II can only be seen through the polarized glasses II.
Preferably, the number of columns of continuous multiple rows of rectangular pinholes with the same horizontal pitch at the center of the gradient-pitch rectangular pinhole array is equal to twice the number of rows of continuous multiple rows of rectangular pinholes with the same vertical pitch at the center of the gradient-pitch rectangular pinhole array.
Preferably, the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are equal, and the vertical widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are equal.
Preferably, the number of rectangular pinholes in the horizontal direction of the gradient-pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction.
Preferably, the horizontal pitch of the rectangular pinholes at the center of the gradient-pitch rectangular pinhole arraypPitch to verticalqSatisfies the following formula
Wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
Preferably, the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Respectively as follows:
wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches.
Preferably, the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graduated pitch rectangular pinhole array.
Preferably, the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; horizontal viewing perspective of each 3D imageθ 1Vertical viewing angleθ 2Respectively as follows:
wherein the content of the first and second substances,P 1is the horizontal pitch of the first column of rectangular pinholes of the gradually-changed pitch rectangular pinhole array,Q 1is the vertical pitch of the first row of rectangular pinholes of the gradual pitch rectangular pinhole array,wis the horizontal aperture width of the rectangular pinhole,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
The horizontal pitch of the rectangular pinhole at the center of the gradually-changed pitch rectangular pinhole array isp=10mm, the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array ism=60, number of rectangular pinholes in vertical direction in gradient pitch rectangular pinhole arrayn=30, the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same horizontal pitch isa=20, the number of lines of continuous multi-line rectangular pinholes with same vertical pitch positioned at the center of the gradient pitch rectangular pinhole array isb=10, viewing distance ofl=5010mm, the distance between the display screen and the gradually-changed pitch rectangular pinhole array isg=10mm, the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually changed pitch isc=0.58, horizontal aperture width of rectangular pinhole beingw=1.9mm, and the width of the vertical aperture of the rectangular pinhole isv=2.2 mm. The horizontal pitches of the 1 st to 60 th rows of rectangular pinhole arrays in the gradual-pitch rectangular pinhole array are 10.8mm, 10mm, 10.8mm, 10mm10.8mm, 10.8 mm; the vertical pitches of the 1 st to 30 th rows of rectangular pinhole arrays in the gradual-change pitch rectangular pinhole array are respectively 12.5mm, 12mm, 12.5 mm; the horizontal resolution, the vertical resolution, the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively 30, 60 ° and 52 ° as obtained from the equations (4), (5), (6) and (7).
Claims (8)
1. A double-view 3D display device based on a gradient pitch rectangular pinhole array is characterized by comprising a display screen, a gradient pitch polarization grating, a gradient pitch rectangular pinhole array, a pair of polarization glasses I and a pair of polarization glasses II; the display screen is characterized in that the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are arranged in parallel and are correspondingly aligned; the gradient pitch polarization grating is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the horizontal pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the left side and the right side; the vertical pitches of continuous rows of rectangular pinholes in the center of the variable-pitch rectangular pinhole array are the same, and the vertical pitches of the variable-pitch rectangular pinhole array are gradually increased from the center to the upper side and the lower side; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesP i The first stepjVertical pitch of row rectangular pinholesQ j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,qis the vertical pitch of the rectangular pinholes at the center of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,ais the number of continuous multi-column rectangular pinholes which are positioned at the center of the gradient-pitch rectangular pinhole array and have the same horizontal pitch,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the rectangular pinhole array with gradually changed pitch is shown; the gradient pitch polarization grating is formed by alternately arranging a grating I and a grating II, and the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; the pitch of the grating I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying the gradient pitch rectangular micro-image array; the variable-pitch rectangular micro-image array is formed by alternately arranging rectangular image elements I and rectangular image elements II; the horizontal pitch and the vertical pitch of the rectangular image element I are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch and the vertical pitch of the rectangular image element II are respectively equal to the horizontal pitch and the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I is correspondingly aligned with the grating I, and the rectangular image element II is correspondingly aligned with the grating II; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and the 3D image II can only be seen through the polarized glasses II.
2. The dual-view 3D display device according to claim 1, wherein the number of columns of consecutive rows of rectangular pinholes with the same horizontal pitch at the center of the gradient pitch rectangular pinhole array is equal to twice the number of rows of consecutive rows of rectangular pinholes with the same vertical pitch at the center of the gradient pitch rectangular pinhole array.
3. The dual-view 3D display device according to claim 2, wherein the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are all equal, and the vertical widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are all equal.
4. A dual view 3D display device according to claim 3, wherein the number of rectangular pinholes in the horizontal direction of the graded pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction.
5. A dual view 3D display device according to claim 4 wherein the horizontal pitch of the rectangular pinholes at the centre of the graduated pitch rectangular pinhole arraypPitch to verticalqSatisfies the following formula
Wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,bis the number of the continuous rows of rectangular pinholes which are positioned at the center of the gradient pitch rectangular pinhole array and have the same vertical pitch,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
6. The dual-view 3D display device as claimed in claim 4, wherein the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Respectively as follows:
wherein the content of the first and second substances,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches.
7. A dual view 3D display device according to claim 5 wherein the ratio of the vertical aperture width to the horizontal aperture width of the rectangular pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graduated pitch array of rectangular pinholes.
8. The dual-view 3D display device as claimed in claim 7, wherein the horizontal viewing angle and the vertical viewing angle of the 3D image I and the 3D image II are respectively equal; horizontal viewing perspective of each 3D imageθ 1Vertical viewing angleθ 2Respectively as follows:
wherein the content of the first and second substances,P 1is the horizontal pitch of the first column of rectangular pinholes of the gradually-changed pitch rectangular pinhole array,Q 1is the vertical pitch of the first row of rectangular pinholes of the gradual pitch rectangular pinhole array,wis the horizontal aperture width of the rectangular pinhole,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111781734A (en) * | 2020-08-30 | 2020-10-16 | 成都工业学院 | Double-view 3D display device and method based on double display screens |
| CN112485914A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on step gradual change pitch polarization grating |
| CN112485920A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
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| WO2018001149A1 (en) * | 2016-06-30 | 2018-01-04 | 成都工业学院 | Integrated imaging 3d display device based on gradually-changing pitch micro lens array, gradually-changing pitch micro lens array, and display screen |
| CN211180439U (en) * | 2020-02-19 | 2020-08-04 | 成都工业学院 | Double-vision 3D display device based on gradient pitch rectangular pinhole array |
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2020
- 2020-02-19 CN CN202010101460.9A patent/CN110989194A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105933697A (en) * | 2016-06-30 | 2016-09-07 | 北京邮电大学 | Grating parameter output method and device |
| WO2018001149A1 (en) * | 2016-06-30 | 2018-01-04 | 成都工业学院 | Integrated imaging 3d display device based on gradually-changing pitch micro lens array, gradually-changing pitch micro lens array, and display screen |
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| CN111781734A (en) * | 2020-08-30 | 2020-10-16 | 成都工业学院 | Double-view 3D display device and method based on double display screens |
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| CN112485914A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on step gradual change pitch polarization grating |
| CN112485920A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
| CN112485914B (en) * | 2021-01-11 | 2024-02-23 | 成都工业学院 | Double-vision 3D display device based on stepped gradient pitch polarization grating |
| CN112485920B (en) * | 2021-01-11 | 2024-05-14 | 江苏洪旭德生科技有限公司 | Double-vision 3D display device based on stepped gradual change aperture pinhole array |
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