CN114895479B - Wide-viewing angle double-view 3D display device - Google Patents
Wide-viewing angle double-view 3D display device Download PDFInfo
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- CN114895479B CN114895479B CN202210535748.6A CN202210535748A CN114895479B CN 114895479 B CN114895479 B CN 114895479B CN 202210535748 A CN202210535748 A CN 202210535748A CN 114895479 B CN114895479 B CN 114895479B
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- 230000010287 polarization Effects 0.000 claims abstract description 122
- 239000011521 glass Substances 0.000 claims abstract description 33
- 238000003384 imaging method Methods 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- G02B30/30—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 parallax barriers
-
- 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
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a wide-view angle double-view 3D display device, wherein a display screen is used for displaying a composite image element array; the polarization grating comprises a polarization unit I and a polarization unit II; a plurality of image elements I which are arranged in series are correspondingly aligned with the same polarization unit I; a plurality of image elements II which are arranged in series are correspondingly aligned with the same polarization unit II; the polarization unit I is used for polarizing the light rays emitted by the image element I, and the polarization unit II is used for polarizing the light rays emitted by the image element II; the slit grating I is used for modulating an optical path; the imaging areas I of the image elements I are all coincident at the optimal viewing distance; the imaging areas II of the picture elements II all coincide at an optimal viewing distance; only the 3D image I can be seen through the polarized glasses I, and only the 3D image II can be seen through the polarized glasses II; the viewing angles of the 3D image I and the 3D image II are both independent of the number of slits II and are both proportional to the aperture width of the slits II.
Description
Technical Field
The present invention relates to 3D display technology, and more particularly, to a wide viewing angle dual view 3D display device.
Background
Chinese patent CN202110355916.9 proposes a dual-view 3D display method based on polarized glasses, which implements dual-view 3D display by integrating an imaging display device; the integrated imaging display device comprises a display screen, a polarization grating, a pinhole array, a polarization glasses I and a polarization glasses II; the display screen, the polarization grating and the pinhole array are sequentially arranged in parallel and correspondingly aligned; the polarization grating is attached to the display screen; the polarization grating is formed by alternately arranging grating units I and grating units II, and the polarization direction of the grating unit I is orthogonal with that of the grating unit II; the display screen is used for displaying the discrete composite image element array; the discrete composite image element array comprises a plurality of image elements I and II which are arranged in a discrete mode; the width of picture element I is equal to the width of picture element II; the interval width of the adjacent image element I, the interval width of the adjacent image element II and the interval width of the adjacent image element I and the image element II are equal; the width q of the picture element I, the interval width a of the adjacent picture elements I and the pitch p of pinholes satisfy the following formula
Wherein l is the optimal viewing distance, g is the distance between the display screen and the pinhole array; a plurality of image elements I which are arranged in a discrete manner in the horizontal direction are correspondingly aligned with the same grating unit I; a plurality of image elements II which are arranged in a discrete manner in the horizontal direction are correspondingly aligned with the same grating unit II; the number of the image elements I which are discretely arranged in the horizontal direction and correspond to the same grating unit I is equal to the number of the image elements II which are discretely arranged in the horizontal direction and correspond to the same grating unit II; the pitch s of the grating units I and II is calculated by the following formula
Wherein k is the number of image elements I which are discretely arranged in the horizontal direction and correspond to the same raster unit I; reconstructing a 3D image I by the image element I through the grating unit I and the pinhole corresponding to the image element I; reconstructing a 3D image II by the image element II through the grating unit II and the pinhole corresponding to the image element II; the imaging areas of the image elements I all coincide at the optimal viewing distance; the imaging areas of the image elements II are all coincident at the optimal viewing distance; only the 3D image I can be seen through the polarization glasses I and only the 3D image II can be seen through the polarization glasses II. The width q of the picture element I and the interval width a of the adjacent picture element I are respectively
Wherein w is the aperture width of the pinhole; as can be seen from fig. 1 of chinese patent CN202110355916.9, the horizontal viewing angle θ 1 of 3D image I and the horizontal viewing angle θ 3 of 3D image II are calculated by the following formula
. In the prior art, the horizontal viewing angles of the 3D image I and the 3D image II are independent of the number of pinholes and the aperture width of the pinholes.
Disclosure of Invention
The invention provides a wide-view angle double-view 3D display device, which is shown in figure 1 and is characterized by comprising a display screen, a polarization grating, a slit grating I, a slit grating II, polarization glasses I and polarization glasses II; the display screen, the polarization grating, the slit grating I and the slit grating II are sequentially arranged in parallel; the polarization grating is attached to the display screen; the centers of the display screen, the polarization grating, the slit grating I and the slit grating II are correspondingly aligned; the horizontal widths of the display screen and the polarization grating are the same; the display screen is used for displaying the composite image element array; the composite image element array comprises image elements I and image elements II, as shown in figure 2; the number of picture elements I is equal to the number of picture elements II; the pitch of picture elements I is equal to the pitch of picture elements II; the polarization grating comprises a polarization unit I and a polarization unit II, as shown in figure 3; the number of the polarization units I is equal to the number of the polarization units II; the pitch of the polarization unit I is equal to that of the polarization unit II; the polarization units I and the polarization units II are alternately arranged; the polarization direction of the polarization unit I is orthogonal to the polarization direction of the polarization unit II; a plurality of image elements I which are arranged in series are correspondingly aligned with the same polarization unit I; a plurality of image elements II which are arranged in series are correspondingly aligned with the same polarization unit II; the number of the plurality of consecutively arranged picture elements I corresponding to the same polarization unit I is equal to the number of the plurality of consecutively arranged picture elements II corresponding to the same polarization unit II; the polarization unit I is used for polarizing the light rays emitted by the image element I, and the polarization unit II is used for polarizing the light rays emitted by the image element II; the slit grating I is used for modulating an optical path; the number of slits I is equal to twice the number of picture elements I; the slit grating II is used for imaging; the number of slits II is equal to the number of slits I; the pitch q of the slit I, the pitch s of the slit II, the pitch t of the polarization unit I and the aperture width w of the slit I are calculated by the following formula
（1）
（2）
（3）
（4）
Wherein p is the pitch of the image element II, l is the optimal viewing distance, g is the distance between the display screen and the slit grating II, d is the distance between the slit grating I and the slit grating II, k is the number of a plurality of image elements I which are arranged continuously and correspond to the same polarization unit I, and v is the aperture width of the slit II; the distance d between the slit grating I and the slit grating II meets the following condition
（5）
A part of light rays emitted by the image element I sequentially pass through the polarization unit I and the corresponding slits I and II to be projected to the imaging area I to reconstruct a 3D image I, and the imaging area I of the image element I is overlapped at the optimal viewing distance; part of light rays emitted by the image element II sequentially pass through the polarization unit II and the corresponding slits I and II to be projected to the imaging area II to reconstruct a 3D image II, and the imaging areas II of the image element II are overlapped at the optimal viewing distance; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized unit II; the polarized glasses I and the polarized glasses II are used for separating the 3D image I and the 3D image II; only the 3D image I can be seen through the polarized glasses I, and only the 3D image II can be seen through the polarized glasses II; at the optimal viewing distance, the viewing angle θ 1 of the 3D image I and the viewing angle θ 2 of the 3D image II are
（6）
The viewing angles of the 3D image I and the 3D image II are both independent of the number of slits II and are both proportional to the aperture width of the slits II.
Preferably, the vertical widths of the display screen, the polarization grating, the slit grating I and the slit grating II are the same.
Drawings
FIG. 1 is a schematic diagram of the present invention
FIG. 2 is a schematic diagram of a composite pixel array according to the present invention
FIG. 3 is a schematic diagram of a polarization grating according to the present invention
The graphic reference numerals in the above figures are:
1. the display screen, 2 polarization gratings, 3 slit gratings, 4 slit gratings, 5 polarization glasses, 6 polarization glasses, 7 image elements, 8 image elements, 9 polarization units, and 10 polarization units.
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 with reference to the following detailed description of an exemplary embodiment of the present invention. It is noted that the following examples are given for the purpose of illustration only and are not to be construed as limiting the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will be within the scope of the invention as viewed by one skilled in the art from the foregoing disclosure.
The invention provides a wide-view angle double-view 3D display device, which is shown in figure 1 and is characterized by comprising a display screen, a polarization grating, a slit grating I, a slit grating II, polarization glasses I and polarization glasses II; the display screen, the polarization grating, the slit grating I and the slit grating II are sequentially arranged in parallel; the polarization grating is attached to the display screen; the centers of the display screen, the polarization grating, the slit grating I and the slit grating II are correspondingly aligned; the horizontal widths of the display screen and the polarization grating are the same; the display screen is used for displaying the composite image element array; the composite image element array comprises image elements I and image elements II, as shown in figure 2; the number of picture elements I is equal to the number of picture elements II; the pitch of picture elements I is equal to the pitch of picture elements II; the polarization grating comprises a polarization unit I and a polarization unit II, as shown in figure 3; the number of the polarization units I is equal to the number of the polarization units II; the pitch of the polarization unit I is equal to that of the polarization unit II; the polarization units I and the polarization units II are alternately arranged; the polarization direction of the polarization unit I is orthogonal to the polarization direction of the polarization unit II; a plurality of image elements I which are arranged in series are correspondingly aligned with the same polarization unit I; a plurality of image elements II which are arranged in series are correspondingly aligned with the same polarization unit II; the number of the plurality of consecutively arranged picture elements I corresponding to the same polarization unit I is equal to the number of the plurality of consecutively arranged picture elements II corresponding to the same polarization unit II; the polarization unit I is used for polarizing the light rays emitted by the image element I, and the polarization unit II is used for polarizing the light rays emitted by the image element II; the slit grating I is used for modulating an optical path; the number of slits I is equal to twice the number of picture elements I; the slit grating II is used for imaging; the number of slits II is equal to the number of slits I; the pitch q of the slit I, the pitch s of the slit II, the pitch t of the polarization unit I and the aperture width w of the slit I are calculated by the following formula
（1）
（2）
（3）
（4）
Wherein p is the pitch of the image element II, l is the optimal viewing distance, g is the distance between the display screen and the slit grating II, d is the distance between the slit grating I and the slit grating II, k is the number of a plurality of image elements I which are arranged continuously and correspond to the same polarization unit I, and v is the aperture width of the slit II; the distance d between the slit grating I and the slit grating II meets the following condition
（5）
A part of light rays emitted by the image element I sequentially pass through the polarization unit I and the corresponding slits I and II to be projected to the imaging area I to reconstruct a 3D image I, and the imaging area I of the image element I is overlapped at the optimal viewing distance; part of light rays emitted by the image element II sequentially pass through the polarization unit II and the corresponding slits I and II to be projected to the imaging area II to reconstruct a 3D image II, and the imaging areas II of the image element II are overlapped at the optimal viewing distance; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized unit II; the polarized glasses I and the polarized glasses II are used for separating the 3D image I and the 3D image II; only the 3D image I can be seen through the polarized glasses I, and only the 3D image II can be seen through the polarized glasses II; at the optimal viewing distance, the viewing angle θ 1 of the 3D image I and the viewing angle θ 2 of the 3D image II are
（6）
The viewing angles of the 3D image I and the 3D image II are both independent of the number of slits II and are both proportional to the aperture width of the slits II.
Preferably, the vertical widths of the display screen, the polarization grating, the slit grating I and the slit grating II are the same.
The pitch of the image element II is 10mm, the distance between the display screen and the slit grating II is 10mm, the distance between the slit grating I and the slit grating II is 5mm, the aperture width of the slit II is 2mm, the number of a plurality of continuously arranged image elements I corresponding to the same polarization unit I is 4, the optimal viewing distance is 190mm, and the pitch of the slit I is 9.75mm calculated by the formula (1); the pitch of the slit II calculated from the formula (2) was 9.5mm; the pitch of the polarizing unit I calculated from the formula (3) is 40mm; the aperture width of the slit I calculated from the formula (4) is 4mm; the viewing angles of the 3D image I and the 3D image II calculated from the formula (6) are each 62 °. In the prior art scheme based on the above parameters, the viewing angles of both the 3D image I and the 3D image II are 52 °.
Claims (2)
1. The wide-view double-view 3D display device is characterized by comprising a display screen, a polarization grating, a slit grating I, a slit grating II, polarization glasses I and polarization glasses II; the display screen, the polarization grating, the slit grating I and the slit grating II are sequentially arranged in parallel; the polarization grating is attached to the display screen; the centers of the display screen, the polarization grating, the slit grating I and the slit grating II are correspondingly aligned; the horizontal widths of the display screen and the polarization grating are the same; the display screen is used for displaying the composite image element array; the composite image element array comprises an image element I and an image element II; the number of picture elements I is equal to the number of picture elements II; the pitch of picture elements I is equal to the pitch of picture elements II; the polarization grating comprises a polarization unit I and a polarization unit II; the number of the polarization units I is equal to the number of the polarization units II; the pitch of the polarization unit I is equal to that of the polarization unit II; the polarization units I and the polarization units II are alternately arranged; the polarization direction of the polarization unit I is orthogonal to the polarization direction of the polarization unit II; a plurality of image elements I which are arranged in series are correspondingly aligned with the same polarization unit I; a plurality of image elements II which are arranged in series are correspondingly aligned with the same polarization unit II; the number of the plurality of consecutively arranged picture elements I corresponding to the same polarization unit I is equal to the number of the plurality of consecutively arranged picture elements II corresponding to the same polarization unit II; the polarization unit I is used for polarizing the light rays emitted by the image element I, and the polarization unit II is used for polarizing the light rays emitted by the image element II; the slit grating I is used for modulating an optical path; the number of slits I is equal to twice the number of picture elements I; the slit grating II is used for imaging; the number of slits II is equal to the number of slits I; the pitch q of the slit I, the pitch s of the slit II, the pitch t of the polarization unit I and the aperture width w of the slit I are calculated by the following formula
Wherein p is the pitch of the image element II, l is the optimal viewing distance, g is the distance between the display screen and the slit grating II, d is the distance between the slit grating I and the slit grating II, k is the number of a plurality of image elements I which are arranged continuously and correspond to the same polarization unit I, and v is the aperture width of the slit II; the distance d between the slit grating I and the slit grating II meets the following condition
A part of light rays emitted by the image element I sequentially pass through the polarization unit I and the corresponding slits I and II to be projected to the imaging area I to reconstruct a 3D image I, and the imaging area I of the image element I is overlapped at the optimal viewing distance; part of light rays emitted by the image element II sequentially pass through the polarization unit II and the corresponding slits I and II to be projected to the imaging area II to reconstruct a 3D image II, and the imaging areas II of the image element II are overlapped at the optimal viewing distance; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized unit II; the polarized glasses I and the polarized glasses II are used for separating the 3D image I and the 3D image II; only the 3D image I can be seen through the polarized glasses I, and only the 3D image II can be seen through the polarized glasses II; at the optimal viewing distance, the viewing angle θ 1 of the 3D image I and the viewing angle θ 2 of the 3D image II are
The viewing angles of the 3D image I and the 3D image II are both independent of the number of slits II and are both proportional to the aperture width of the slits II.
2. The wide-viewing angle dual-view 3D display device of claim 1, wherein the vertical widths of the display screen, the polarization grating, the slit grating I, and the slit grating II are all the same.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10206794A (en) * | 1997-01-27 | 1998-08-07 | Nec Corp | Stereoscopic display device |
| JP2004212666A (en) * | 2002-12-27 | 2004-07-29 | Toshiba Corp | Three-dimensional image display device, method for distributing parallax image to the device and method for displaying three-dimensional image on the device |
| CN1591174A (en) * | 2002-12-27 | 2005-03-09 | 株式会社东芝 | Three-dimensional image display apparatus, method of distributing elemental images to the display apparatus, and method of displaying three-dimensional image on the display apparatus |
| CN103501432A (en) * | 2006-04-19 | 2014-01-08 | 塞特雷德股份公司 | Bandwidth improvement for 3D display |
| WO2017071533A1 (en) * | 2015-10-30 | 2017-05-04 | 成都工业学院 | Slit grating auto-stereoscopic display device and method based on dual display screen |
| CN206863360U (en) * | 2017-07-04 | 2018-01-09 | 成都工业学院 | Wide viewing angle one-dimensional integrated imaging 3D display device based on polarization grating |
| CN209746283U (en) * | 2019-06-06 | 2019-12-06 | 成都工业学院 | integrated imaging double-vision 3D display device based on slit grating and polarization grating |
| CN210005805U (en) * | 2019-05-29 | 2020-01-31 | 成都工业学院 | -dimensional integrated imaging double-vision 3D display device based on polarization grating |
| CN113031297A (en) * | 2021-04-01 | 2021-06-25 | 成都工业学院 | Double-vision 3D display method based on polarized glasses |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102681185B (en) * | 2012-05-30 | 2014-07-30 | 深圳超多维光电子有限公司 | Three-dimensional display device and adjusting method thereof |
-
2022
- 2022-05-18 CN CN202210535748.6A patent/CN114895479B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10206794A (en) * | 1997-01-27 | 1998-08-07 | Nec Corp | Stereoscopic display device |
| JP2004212666A (en) * | 2002-12-27 | 2004-07-29 | Toshiba Corp | Three-dimensional image display device, method for distributing parallax image to the device and method for displaying three-dimensional image on the device |
| CN1591174A (en) * | 2002-12-27 | 2005-03-09 | 株式会社东芝 | Three-dimensional image display apparatus, method of distributing elemental images to the display apparatus, and method of displaying three-dimensional image on the display apparatus |
| CN103501432A (en) * | 2006-04-19 | 2014-01-08 | 塞特雷德股份公司 | Bandwidth improvement for 3D display |
| WO2017071533A1 (en) * | 2015-10-30 | 2017-05-04 | 成都工业学院 | Slit grating auto-stereoscopic display device and method based on dual display screen |
| CN206863360U (en) * | 2017-07-04 | 2018-01-09 | 成都工业学院 | Wide viewing angle one-dimensional integrated imaging 3D display device based on polarization grating |
| CN210005805U (en) * | 2019-05-29 | 2020-01-31 | 成都工业学院 | -dimensional integrated imaging double-vision 3D display device based on polarization grating |
| CN209746283U (en) * | 2019-06-06 | 2019-12-06 | 成都工业学院 | integrated imaging double-vision 3D display device based on slit grating and polarization grating |
| CN113031297A (en) * | 2021-04-01 | 2021-06-25 | 成都工业学院 | Double-vision 3D display method based on polarized glasses |
Non-Patent Citations (3)
| Title |
|---|
| A high optical efficiency 3D/2D convertible integral imaging display;Deng H 等;《Journal of the society for information display》;20160413;第24卷(第02期);85-89 * |
| Dual-view inegral imaging three-dimensional display using polarized glasses;Wu F 等;《Applied optics》;20180307;第57卷(第06期);1447-1449 * |
| 基于偏振光栅的一维集成成像双视3D显示;范钧 等;《红外与激光工程》;20200125;第49卷(第01期);254-258 * |
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