CN210072222U - Double-vision 3D display device based on micro-lens array and polarization grating - Google Patents
Double-vision 3D display device based on micro-lens array and polarization grating Download PDFInfo
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- CN210072222U CN210072222U CN201920762244.1U CN201920762244U CN210072222U CN 210072222 U CN210072222 U CN 210072222U CN 201920762244 U CN201920762244 U CN 201920762244U CN 210072222 U CN210072222 U CN 210072222U
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Abstract
The utility model discloses a double-vision 3D display device based on a micro-lens array and a polarization grating, which comprises a display screen, the polarization grating, a pinhole array, the micro-lens array, polarization glasses 1 and polarization glasses 2; the polarization grating is attached to the display screen, and the pinhole array is attached to the micro-lens array; the display screen, the polarization grating, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the image elements 1 reconstruct a plurality of 3D images 1 through a plurality of corresponding micro lenses, and are combined into one high-resolution 3D image 1 in a viewing area, and the high-resolution 3D image 1 can be seen only through the polarized glasses 1; the image elements 2 reconstruct a plurality of 3D images 2 through a plurality of corresponding microlenses, and are combined into one high-resolution 3D image 2 in the viewing area, and can only be seen through the polarized glasses 2.
Description
Technical Field
The utility model relates to a 3D shows, more specifically says, the utility model relates to a double vision 3D display device based on microlens array and polarization grating.
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. However, the existing integrated imaging dual-view 3D display has a bottleneck problem of insufficient 3D resolution, which seriously affects the experience of the viewer.
Disclosure of Invention
The utility model provides a look 3D display device doubly based on microlens array and polarization grating, as shown in figure 1, its characterized in that, including display screen, polarization grating, pinhole array, microlens array, polarization glasses 1 and polarization glasses 2; the polarization grating is attached to the display screen, and the pinhole array is attached to the micro-lens array; the display screen, the polarization grating, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the display screen is used for displaying a micro-image array, and the micro-image array is composed of a picture element 1 and a picture element 2, as shown in the attached figure 2; the polarization grating is formed by alternately arranging a polarization unit 1 and a polarization unit 2, and the polarization directions of the polarization unit 1 and the polarization unit 2 are orthogonal, as shown in fig. 3; the polarization direction of the polarization glasses 1 is the same as that of the polarization unit 1, and the polarization direction of the polarization glasses 2 is the same as that of the polarization unit 2; the image element 1 is correspondingly aligned with the polarization unit 1, and the image element 2 is correspondingly aligned with the polarization unit 2; the image elements 1 reconstruct a plurality of 3D images 1 through a plurality of corresponding micro lenses, and are combined into one high-resolution 3D image 1 in a viewing area, and the high-resolution 3D image 1 can be seen only through the polarized glasses 1; the image elements 2 reconstruct a plurality of 3D images 2 through a plurality of corresponding microlenses, and are combined into one high-resolution 3D image 2 in the viewing area, and can only be seen through the polarized glasses 2.
Preferably, the pitch of the pinholes, the pitch of the polarizing elements 1, the pitch of the polarizing elements 2, the pitch of the image elements 1 and the pitch of the image elements 2 are the same.
Preferably, the pitch of image elements 1 and 2 is a multiple of the pitch of the microlenses, the horizontal aperture width of the pinholes is a multiple of the pitch of the microlenses, and the vertical aperture width of the pinholes is a multiple of the pitch of the microlenses.
Preferably, the centers of the image elements 1 are all correspondingly aligned with the centers of the corresponding pinholes, and the centers of the image elements 2 are all correspondingly aligned with the centers of the corresponding pinholes.
Preferably, the display screen is located at the focal plane of the microlens array.
Preferably, the resolution of the 3D image 1R 1And resolution of the 3D image 2R 2Are respectively as
Wherein the content of the first and second substances,pis the pitch of the micro-lenses,mis the number of picture elements in the horizontal direction in the micro-image array,nis the number of picture elements in the vertical direction in the micro-image array,wis the horizontal aperture width of the pinhole,vis the vertical aperture width of the pinhole.
Drawings
FIG. 1 is a schematic diagram of the structure and parameters of the present invention
FIG. 2 is a schematic structural view of a micro-image array according to the present invention
FIG. 3 is a schematic structural diagram of the polarization grating of the present invention
The reference numbers in the figures are:
1. the display screen, 2 polarization grating, 3 pinhole array, 4 microlens array, 5 polarization glasses 1, 6 polarization glasses 2, 7 image element 1, 8 image element 2, 9 polarization unit 1, 10 polarization unit 2.
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 detail with reference to the accompanying drawings, in which exemplary embodiments of the present invention are illustrated and described in detail below. It is necessary to point out here that the following examples are only used for further illustration of the present invention, and should not be understood as limiting the scope of the present invention, and those skilled in the art can make some non-essential improvements and modifications to the present invention according to the above-mentioned contents of the present invention, and still fall into the scope of the present invention.
The utility model provides a look 3D display device doubly based on microlens array and polarization grating, as shown in figure 1, its characterized in that, including display screen, polarization grating, pinhole array, microlens array, polarization glasses 1 and polarization glasses 2; the polarization grating is attached to the display screen, and the pinhole array is attached to the micro-lens array; the display screen, the polarization grating, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the display screen is used for displaying a micro-image array, and the micro-image array is composed of a picture element 1 and a picture element 2, as shown in the attached figure 2; the polarization grating is formed by alternately arranging a polarization unit 1 and a polarization unit 2, and the polarization directions of the polarization unit 1 and the polarization unit 2 are orthogonal, as shown in fig. 3; the polarization direction of the polarization glasses 1 is the same as that of the polarization unit 1, and the polarization direction of the polarization glasses 2 is the same as that of the polarization unit 2; the image element 1 is correspondingly aligned with the polarization unit 1, and the image element 2 is correspondingly aligned with the polarization unit 2; the image elements 1 reconstruct a plurality of 3D images 1 through a plurality of corresponding micro lenses, and are combined into one high-resolution 3D image 1 in a viewing area, and the high-resolution 3D image 1 can be seen only through the polarized glasses 1; the image elements 2 reconstruct a plurality of 3D images 2 through a plurality of corresponding microlenses, and are combined into one high-resolution 3D image 2 in the viewing area, and can only be seen through the polarized glasses 2.
Preferably, the pitch of the pinholes, the pitch of the polarizing elements 1, the pitch of the polarizing elements 2, the pitch of the image elements 1 and the pitch of the image elements 2 are the same.
Preferably, the pitch of image elements 1 and 2 is a multiple of the pitch of the microlenses, the horizontal aperture width of the pinholes is a multiple of the pitch of the microlenses, and the vertical aperture width of the pinholes is a multiple of the pitch of the microlenses.
Preferably, the centers of the image elements 1 are all correspondingly aligned with the centers of the corresponding pinholes, and the centers of the image elements 2 are all correspondingly aligned with the centers of the corresponding pinholes.
Preferably, the display screen is located at the focal plane of the microlens array.
Preferably, the resolution of the 3D image 1R 1And resolution of the 3D image 2R 2Are respectively as
（2）
Wherein the content of the first and second substances,pis the pitch of the micro-lenses,mis the number of picture elements in the horizontal direction in the micro-image array,nis the number of picture elements in the vertical direction in the micro-image array,wis the horizontal aperture width of the pinhole,vis the vertical aperture width of the pinhole.
The number of image elements in the horizontal direction in the micro image array is 10, the number of image elements in the vertical direction in the micro image array is 10, the pitch of the polarization unit 1 is 20mm, the horizontal aperture width of the pinhole is 2mm, the vertical aperture width of the pinhole is 4mm, and the pitch of the microlenses is 0.5mm, so that the resolution of the 3D image 1 is 20 × 40, and the resolution of the 3D image 2 is 20 × 40, which are calculated by the formulas (1) and (2); in the conventional integrated imaging dual-view 3D display based on the above parameters, the resolution of each of the 3D image 1 and the 3D image 2 is 5 × 5.
Claims (6)
1. The double-view 3D display device based on the micro-lens array and the polarization grating is characterized by comprising a display screen, a polarization grating, a pinhole array, a micro-lens array, polarization glasses 1 and polarization glasses 2; the polarization grating is attached to the display screen, and the pinhole array is attached to the micro-lens array; the display screen, the polarization grating, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the display screen is used for displaying a micro-image array, and the micro-image array consists of a picture element 1 and a picture element 2; the polarization grating is formed by alternately arranging a polarization unit 1 and a polarization unit 2, and the polarization directions of the polarization unit 1 and the polarization unit 2 are orthogonal; the polarization direction of the polarization glasses 1 is the same as that of the polarization unit 1, and the polarization direction of the polarization glasses 2 is the same as that of the polarization unit 2; the image element 1 is correspondingly aligned with the polarization unit 1, and the image element 2 is correspondingly aligned with the polarization unit 2; the image elements 1 reconstruct a plurality of 3D images 1 through a plurality of corresponding micro lenses, and are combined into one high-resolution 3D image 1 in a viewing area, and the high-resolution 3D image 1 can be seen only through the polarized glasses 1; the image elements 2 reconstruct a plurality of 3D images 2 through a plurality of corresponding microlenses, and are combined into one high-resolution 3D image 2 in the viewing area, and can only be seen through the polarized glasses 2.
2. A dual view 3D display device based on a lenticular array and a polarizing grating, according to claim 1, wherein the pitch of the pinholes, the pitch of the polarizing elements 1, the pitch of the polarizing elements 2, the pitch of the picture elements 1 and the pitch of the picture elements 2 are all the same.
3. The dual-view 3D display device based on a microlens array and a polarization grating according to claim 1, wherein the pitches of image elements 1 and 2 are multiples of the pitch of the microlenses, the horizontal aperture width of the pinholes is a multiple of the pitch of the microlenses, and the vertical aperture width of the pinholes is a multiple of the pitch of the microlenses.
4. A dual view 3D display device based on a microlens array and a polarization grating according to claim 1, wherein the centers of image elements 1 are all aligned correspondingly to the centers of the corresponding pinholes, and the centers of image elements 2 are all aligned correspondingly to the centers of the corresponding pinholes.
5. A dual view 3D display device based on a microlens array and a polarization grating as claimed in claim 1, wherein the display screen is located at the focal plane of the microlens array.
6. The dual view 3D display device based on microlens array and polarization grating as claimed in claim 1, wherein the resolution of 3D image 1R 1And resolution of the 3D image 2R 2Are respectively as
Wherein the content of the first and second substances,pis the pitch of the micro-lenses,mis the number of picture elements in the horizontal direction in the micro-image array,nis the number of picture elements in the vertical direction in the micro-image array,wis the horizontal aperture width of the pinhole,vis the vertical aperture width of the pinholeAnd (4) degree.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208954A (en) * | 2019-05-25 | 2019-09-06 | 成都工业学院 | Double vision 3D display device and method based on microlens array and polarization grating |
| CN113741049A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | High-resolution 3D display device based on dual-polarization composite pinhole array |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208954A (en) * | 2019-05-25 | 2019-09-06 | 成都工业学院 | Double vision 3D display device and method based on microlens array and polarization grating |
| CN113741049A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | High-resolution 3D display device based on dual-polarization composite pinhole array |
| CN113741049B (en) * | 2021-09-11 | 2024-05-10 | 成都工业学院 | High-resolution 3D display device based on dual-polarization composite pinhole array |
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