CN111045221A - Double-vision 3D display device based on polaroid - Google Patents
Double-vision 3D display device based on polaroid Download PDFInfo
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- CN111045221A CN111045221A CN202010101458.1A CN202010101458A CN111045221A CN 111045221 A CN111045221 A CN 111045221A CN 202010101458 A CN202010101458 A CN 202010101458A CN 111045221 A CN111045221 A CN 111045221A
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Abstract
The invention discloses a double-view 3D display device based on a polaroid, which comprises a display screen, the polaroid, a gradually-changed pitch rectangular pinhole array, a pair of polarized glasses I and a pair of polarized glasses II, wherein the polarized glasses I and the polarized glasses II are respectively arranged on the two sides of the display screen; the polarizing plate comprises a sub-polarizing plate I and a sub-polarizing plate II, wherein the polarization direction of the sub-polarizing plate I is orthogonal to that of the sub-polarizing plate II; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the rectangular image element I reconstructs a 3D image I through the sub-polaroids I and the corresponding rectangular pinholes, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the sub-polarizing film II and the corresponding rectangular pinhole, and can only be seen through the polarizing glasses II.
Description
Technical Field
The present invention relates to 3D display, and more particularly, to a dual view 3D display device based on a polarizer.
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.
(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 polaroid, which is shown in attached figures 1, 2 and 3 and is characterized by comprising a display screen, the polaroid, a gradient pitch rectangular pinhole array, a pair of polarized glasses I and a pair of polarized glasses II; the horizontal and vertical central axes of the display screen, the polaroid and the gradient pitch rectangular pinhole array are respectively aligned correspondingly and are parallel to each other; the polaroid is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole array, the horizontal pitches of rectangular pinholes in any one column are the same, and the vertical pitches of rectangular pinholes in any one row are the same; 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 a vertical pin hole array positioned at the center of a rectangular pin hole array with gradually changed pitchesThe number of the continuous rows of rectangular pinholes with the same 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 display screen is used for displaying a gradient pitch rectangular micro-image array, and the gradient pitch rectangular micro-image array comprises rectangular image elements I and rectangular image elements II, as shown in the attached figure 4; the rectangular image element I is positioned in the left half part of the display screen, and the rectangular image element II is positioned in the right half part of the display screen; 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 polaroid comprises a sub-polaroid I and a sub-polaroid II, wherein the polarization direction of the sub-polaroid I is orthogonal to that of the sub-polaroid II, as shown in the figure 5; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the polarization direction of the polarization glasses I is the same as that of the sub-polarizing plate I, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizing plate II; the rectangular image element I reconstructs a 3D image I through the sub-polaroids I and the corresponding rectangular pinholes, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the sub-polarizing film II and the corresponding rectangular pinhole, and can only be seen through the polarizing glasses II.
Preferably, the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
Preferably, the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are equal to each other.
Preferably, the horizontal widths of the display screen, the polarizing plate and the gradual-change pitch rectangular pinhole array are all equal, and the vertical widths of the display screen, the polarizing plate and the gradual-change pitch rectangular pinhole array are all 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 3D image I and the 3D image IHorizontal resolution of IR 1Vertical resolutionR 2Comprises the following steps:
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 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 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 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,cis the ratio of the vertical width to the horizontal width of the gradual 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,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,wis the horizontal aperture width of the rectangular pinhole,vis the vertical aperture width of the rectangular pinhole,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,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 parameters of the present invention
FIG. 2 is a schematic diagram showing the parameters of the rectangular image element I and the sub-polarizer I in the vertical direction
FIG. 3 is a schematic diagram showing the parameters of the rectangular image element II and the sub-polarizer II in the vertical direction
FIG. 4 is a schematic structural diagram of a rectangular micro-image array with gradually changed pitches according to the present invention
FIG. 5 is a schematic diagram of a structure of a graded-pitch polarization grating according to the present invention
The reference numbers in the figures are:
1. the display comprises a display screen, 2 polarizer plates, 3 gradient pitch rectangular pinhole array, 4 polarized glasses I, 5 polarized glasses II, 6 rectangular image elements I, 7 rectangular image elements II, 8 sub polarizer plates I, 9 sub polarizer plates II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
An exemplary embodiment of a polarizer-based dual view 3D display device of the present invention will be described in detail below, and the present invention will be further described in detail. 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 polaroid, which is shown in attached figures 1, 2 and 3 and is characterized by comprising a display screen, the polaroid, a gradient pitch rectangular pinhole array, a pair of polarized glasses I and a pair of polarized glasses II; the horizontal and vertical central axes of the display screen, the polaroid and the gradient pitch rectangular pinhole array are respectively aligned correspondingly and are parallel to each other; the polaroid is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole array, the horizontal pitches of rectangular pinholes in any one column are the same, and the vertical pitches of rectangular pinholes in any one row are the same; 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 a gradual pitch momentThe horizontal pitch of the center of the rectangular pinhole array is the same as the row number of the continuous rectangular pinholes in multiple rows,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 display screen is used for displaying a gradient pitch rectangular micro-image array, and the gradient pitch rectangular micro-image array comprises rectangular image elements I and rectangular image elements II, as shown in the attached figure 4; the rectangular image element I is positioned in the left half part of the display screen, and the rectangular image element II is positioned in the right half part of the display screen; 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 polaroid comprises a sub-polaroid I and a sub-polaroid II, wherein the polarization direction of the sub-polaroid I is orthogonal to that of the sub-polaroid II, as shown in the figure 5; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the polarization direction of the polarization glasses I is the same as that of the sub-polarizing plate I, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizing plate II; the rectangular image element I reconstructs a 3D image I through the sub-polaroids I and the corresponding rectangular pinholes, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the sub-polarizing film II and the corresponding rectangular pinhole, and can only be seen through the polarizing glasses II.
Preferably, the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
Preferably, the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are equal to each other.
Preferably, the horizontal widths of the display screen, the polarizing plate and the gradual-change pitch rectangular pinhole array are all equal, and the vertical widths of the display screen, the polarizing plate and the gradual-change pitch rectangular pinhole array are all 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 resolution of the 3D image I and the 3D image IIR 1Vertical resolutionR 2Comprises the following steps:
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 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 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 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,cis the ratio of the vertical width to the horizontal width of the gradual 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,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,wis the horizontal aperture width of the rectangular pinhole,vis the vertical aperture width of the rectangular pinhole,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,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=40, number of rectangular pinholes in vertical direction in gradient pitch rectangular pinhole arrayn=20, the number of the continuous rows of rectangular pinholes which have the same horizontal pitch and are positioned at the center of the gradient pitch rectangular pinhole array 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=4010mm, the distance between the display screen and the rectangular pinhole array with gradually changed pitch isg=10mm, the ratio of the vertical width to the horizontal width of the rectangular pinhole array with gradually changed pitch isc=0.6, horizontal aperture width of rectangular pinhole isw=2mm, the width of the vertical aperture of the rectangular pinhole isv=2 mm. The horizontal pitches of the 1 st to 40 th rows of rectangular pinhole arrays in the gradient-pitch rectangular pinhole array are respectively 10.5mm, 10mm, 10.5mm, 10mm5mm, 10.5 mm; the vertical pitches of the 1 st row to 20 th row rectangular pinhole arrays in the gradual-change pitch rectangular pinhole array are respectively 12.6mm, 12mm, 12.6mm and 12.6mm according to the formulas (2) and (5); 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 20, 43 ° and 56 °, respectively, as obtained from the equations (3), (4), (6) and (7).
Claims (9)
1. The double-view 3D display device based on the polaroid is characterized by comprising a display screen, the polaroid, a gradient pitch rectangular pinhole array, polarized glasses I and polarized glasses II; the horizontal and vertical central axes of the display screen, the polaroid and the gradient pitch rectangular pinhole array are respectively aligned correspondingly and are parallel to each other; the polaroid is attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole array, the horizontal pitches of rectangular pinholes in any one column are the same, and the vertical pitches of rectangular pinholes in any one row are the same; 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 display screen is used for displaying a gradient pitch rectangular micro-image array, and the gradient pitch rectangular micro-image array comprises rectangular image elements I and rectangular image elements II; the rectangular image element I is positioned in the left half part of the display screen, and the rectangular image element II is positioned in the right half part of the display screen; 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 polarizing plate comprises a sub-polarizing plate I and a sub-polarizing plate II, wherein the polarization direction of the sub-polarizing plate I is orthogonal to that of the sub-polarizing plate II; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the polarization direction of the polarization glasses I is the same as that of the sub-polarizing plate I, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizing plate II; the rectangular image element I reconstructs a 3D image I through the sub-polaroids I and the corresponding rectangular pinholes, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the sub-polarizing film II and the corresponding rectangular pinhole, and can only be seen through the polarizing glasses II.
2. The polarizer-based dual view 3D display device according to claim 1, wherein the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
3. The dual view polarizer-based 3D display device according to claim 2, wherein the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are respectively equal.
4. The polarizer-based dual-view 3D display apparatus according to claim 2, wherein horizontal widths of the display screen, the polarizer and the gradient pitch rectangular pinhole array are all equal, and vertical widths of the display screen, the polarizer and the gradient pitch rectangular pinhole array are all equal.
5. A polarizer-based dual view 3D display device according to claim 4, wherein 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.
6. The polarizer-based dual view 3D display device according to claim 5, 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 polarizer-based dual-view 3D display device according to claim 5, wherein the number of columns of consecutive rows of rectangular pinholes of the same horizontal pitch located in the center of the gradient pitch rectangular pinhole array is equal to twice the number of rows of consecutive rows of rectangular pinholes of the same vertical pitch located in the center of the gradient pitch rectangular pinhole array.
8. A polarizer-based dual view 3D display device according to claim 7, wherein the horizontal pitch of the rectangular pinholes at the center of the graded-pitch rectangular pinhole arraypPitch to verticalqSatisfies the following formula
Wherein the content of the first and second substances,cis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array.
9. The polarizer-based dual view 3D display device according to 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,nis the number of rectangular pinholes in the vertical direction in the rectangular pinhole array with gradually changed pitches,wis the horizontal aperture width of the rectangular pinhole,vis the vertical aperture width of the rectangular pinhole,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,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485915A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-view 3D display device based on step gradual change pitch polarization array |
| CN112485917A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on rectangular pinhole array |
| 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 |
| CN115145049B (en) * | 2022-05-18 | 2024-05-03 | 成都工业学院 | Double-vision 3D display device based on composite polaroid |
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2020
- 2020-02-19 CN CN202010101458.1A patent/CN111045221A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485915A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-view 3D display device based on step gradual change pitch polarization array |
| CN112485917A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on rectangular pinhole array |
| 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 |
| 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 |
| CN115145049B (en) * | 2022-05-18 | 2024-05-03 | 成都工业学院 | Double-vision 3D display device based on composite polaroid |
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