CN110389454B - Integrated imaging double-vision 3D display device based on rectangular polarization array - Google Patents
Integrated imaging double-vision 3D display device based on rectangular polarization array Download PDFInfo
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- CN110389454B CN110389454B CN201910685933.1A CN201910685933A CN110389454B CN 110389454 B CN110389454 B CN 110389454B CN 201910685933 A CN201910685933 A CN 201910685933A CN 110389454 B CN110389454 B CN 110389454B
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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
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Abstract
The invention discloses an integrated imaging double-vision 3D display device based on a rectangular polarization array, which comprises a display screen, a rectangular polarization array, a rectangular pinhole array, polarized glasses I and polarized glasses II; in the rectangular polarization array, the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are the same, the vertical pitches of the rectangular polarization units I and the rectangular polarization units II are the same, and the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are not equal to the vertical pitches; the rectangular image element I reconstructs a 3D image I through a rectangular pinhole and can only be seen through the polarized glasses I; rectangular image element II reconstructs a 3D image II through a rectangular pinhole and can only be seen through polarized glasses II.
Description
Technical Field
The present invention relates to 3D displays, and more particularly to an integrated imaging dual vision 3D display device based on a rectangular polarizing array.
Background
The integrated imaging dual-view 3D display is a fusion of the dual-view display technology and the integrated imaging 3D display technology. It may enable a viewer to see different 3D pictures in different viewing directions.
In conventional integrated imaging dual vision 3D displays based on polarizing arrays:
(1) The micro-image array comprises two groups of image elements, and the two groups of image elements are arranged at intervals in the horizontal and vertical directions.
(2) Both sets of picture elements are square, i.e. the horizontal pitch of the picture elements is equal to the vertical pitch.
(3) The pinholes corresponding to the picture elements are square and the horizontal pitch of the pinholes is equal to the vertical pitch.
(4) The polarization units corresponding to the picture elements are square, and the horizontal pitch of the polarization units is equal to the vertical pitch.
For televisions and displays, the ratio of the horizontal width to the vertical width of the television and display is 4:3, 16:10, or 16:9. The defects are that:
(1) The ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image is 4:3, 16:10 or 16:9. The number of 3D pixels of a single 3D image in the integrated imaging dual view 3D display is half the number of 3D pixels of a single 3D image in the integrated imaging 3D display. Thus, the uneven distribution of 3D pixels further affects the viewing effect.
(2) The horizontal viewing angle is much smaller than the vertical viewing angle.
For a cell phone, the ratio of the horizontal width to the vertical width of the cell phone is 3:4, 10:16, or 9:16. The defects are that: the ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image is 3:4, 10:16 or 9:16. The number of 3D pixels of a single 3D image in the integrated imaging dual view 3D display is half the number of 3D pixels of a single 3D image in the integrated imaging 3D display. Thus, the uneven distribution of 3D pixels further affects the viewing effect.
Disclosure of Invention
The invention provides an integrated imaging double-vision 3D display device based on a rectangular polarization array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a rectangular polarization array, a rectangular pinhole array, polarized glasses I and polarized glasses II; the display screen is used for displaying a rectangular micro-image array, and the rectangular micro-image array is formed by alternately arranging rectangular image elements I and rectangular image elements II in the horizontal and vertical directions, as shown in figure 3; the horizontal width of the display screen is equal to the horizontal width of the rectangular polarization array; the vertical width of the display screen is equal to the vertical width of the rectangular polarization array;
the rectangular polarization array is closely attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the rectangular polarization array in parallel; the display screen, the rectangular polarization array, the rectangular pinhole array is aligned correspondingly;
in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the horizontal pitches of the rectangular pinholes are not equal to the vertical pitches of the rectangular pinholes, as shown in fig. 4;
the rectangular polarization array is formed by alternately arranging rectangular polarization units I and rectangular polarization units II in the horizontal and vertical directions, and the rectangular polarization units I are orthogonal to the polarization directions of the rectangular polarization units II, as shown in fig. 5; in the rectangular polarization array, the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are the same, the vertical pitches of the rectangular polarization units I and the rectangular polarization units II are the same, and the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are not equal to the vertical pitches;
the polarization direction of the polarized glasses I is the same as that of the rectangular polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the rectangular polarized unit II;
the rectangular image element I is correspondingly aligned with the rectangular polarization unit I, and the rectangular image element II is correspondingly aligned with the rectangular polarization unit II; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the rectangular polarizing unit I, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the rectangular polarizing unit I; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the rectangular polarizing unit II, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the rectangular polarizing unit II;
the rectangular image element I reconstructs a 3D image I through a rectangular pinhole and can only be seen through the polarized glasses I; rectangular image element II reconstructs a 3D image II through a rectangular pinhole and can only be seen through polarized glasses II.
Preferably, the ratio of the horizontal pitch to the vertical pitch of the rectangular picture elements I and II is equal to the ratio of the horizontal width to the vertical width of the display screen; the ratio of the horizontal pitch to the vertical pitch of the rectangular polarizing units I and II is equal to the ratio of the horizontal width to the vertical width of the rectangular polarizing array; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array.
Preferably, the ratio of the horizontal width to the vertical width of the rectangular polarizing array is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array.
Preferably, the horizontal width of the rectangular polarizing array is equal to the horizontal width of the rectangular pinhole array; the vertical width of the rectangular polarizing array is equal to the vertical width of the rectangular pinhole array.
Preferably, the horizontal pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the horizontal pitch of the rectangular pinhole, and the vertical pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the vertical pitch of the rectangular pinhole.
Preferably, the ratio of the horizontal aperture width to the vertical aperture width of the rectangular pinholes is equal to the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes.
Preferably, the ratio of the horizontal aperture width of the rectangular pinholes to the horizontal pitch of the rectangular pinholes is most suitable between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinholes to the vertical pitch of the rectangular pinholes is most suitable between 10% and 20%.
Preferably, the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II are respectively equal.
Preferably, the 3D image I has a horizontal viewing angle θ 1 Vertical viewing angle θ 2 Horizontal resolution R 1 Vertical resolution R 2 Horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps of:
R 1 ＝R 2 ＝m (3)
wherein p is the horizontal pitch of the rectangular pinholes, w is the horizontal aperture width of the rectangular pinholes, m is the number of rectangular image elements I in the horizontal direction of the rectangular microimage array, l is the viewing distance, g is the spacing between the display screen and the rectangular pinhole array, and a is the ratio of the vertical width to the horizontal width of the rectangular pinhole array.
Drawings
FIG. 1 is a schematic view of the structure and horizontal parameters of the present invention
FIG. 2 is a schematic view of the structure and vertical parameters of the present invention
FIG. 3 is a schematic diagram of a rectangular pinhole array according to the present invention
FIG. 4 is a schematic diagram of a rectangular polarizing array according to the present invention
FIG. 5 is a schematic diagram of a rectangular micro image array according to the present invention
The graphic reference numerals in the above figures are:
1. the display screen, 2, rectangular polarization array, 3, rectangular pinhole array, 4, polarized glasses I,5, polarized glasses II,6, rectangular image element I,7, rectangular image element II,8, rectangular polarization unit I,9, rectangular polarization unit 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 the integrated imaging dual vision 3D display device based on a rectangular polarizing array of the present invention is described in detail below, and the present invention will be described in further detail. 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 an integrated imaging double-vision 3D display device based on a rectangular polarization array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a rectangular polarization array, a rectangular pinhole array, polarized glasses I and polarized glasses II; the display screen is used for displaying a rectangular micro-image array, and the rectangular micro-image array is formed by alternately arranging rectangular image elements I and rectangular image elements II in the horizontal and vertical directions, as shown in figure 3; the horizontal width of the display screen is equal to the horizontal width of the rectangular polarization array; the vertical width of the display screen is equal to the vertical width of the rectangular polarization array;
the rectangular polarization array is closely attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the rectangular polarization array in parallel; the display screen, the rectangular polarization array, the rectangular pinhole array is aligned correspondingly;
in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the horizontal pitches of the rectangular pinholes are not equal to the vertical pitches of the rectangular pinholes, as shown in fig. 4;
the rectangular polarization array is formed by alternately arranging rectangular polarization units I and rectangular polarization units II in the horizontal and vertical directions, and the rectangular polarization units I are orthogonal to the polarization directions of the rectangular polarization units II, as shown in fig. 5; in the rectangular polarization array, the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are the same, the vertical pitches of the rectangular polarization units I and the rectangular polarization units II are the same, and the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are not equal to the vertical pitches;
the polarization direction of the polarized glasses I is the same as that of the rectangular polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the rectangular polarized unit II;
the rectangular image element I is correspondingly aligned with the rectangular polarization unit I, and the rectangular image element II is correspondingly aligned with the rectangular polarization unit II; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the rectangular polarizing unit I, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the rectangular polarizing unit I; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the rectangular polarizing unit II, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the rectangular polarizing unit II;
the rectangular image element I reconstructs a 3D image I through a rectangular pinhole and can only be seen through the polarized glasses I; rectangular image element II reconstructs a 3D image II through a rectangular pinhole and can only be seen through polarized glasses II.
Preferably, the ratio of the horizontal pitch to the vertical pitch of the rectangular picture elements I and II is equal to the ratio of the horizontal width to the vertical width of the display screen; the ratio of the horizontal pitch to the vertical pitch of the rectangular polarizing units I and II is equal to the ratio of the horizontal width to the vertical width of the rectangular polarizing array; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array.
Preferably, the ratio of the horizontal width to the vertical width of the rectangular polarizing array is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array.
Preferably, the horizontal width of the rectangular polarizing array is equal to the horizontal width of the rectangular pinhole array; the vertical width of the rectangular polarizing array is equal to the vertical width of the rectangular pinhole array.
Preferably, the horizontal pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the horizontal pitch of the rectangular pinhole, and the vertical pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the vertical pitch of the rectangular pinhole.
Preferably, the ratio of the horizontal aperture width to the vertical aperture width of the rectangular pinholes is equal to the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes.
Preferably, the ratio of the horizontal aperture width of the rectangular pinholes to the horizontal pitch of the rectangular pinholes is most suitable between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinholes to the vertical pitch of the rectangular pinholes is most suitable between 10% and 20%.
Preferably, the horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II are respectively equal.
Preferably, the 3D image I has a horizontal viewing angle θ 1 Vertical viewing angle θ 2 Horizontal resolution R 1 Vertical resolution R 2 Horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps of:
R 1 ＝R 2 ＝m (3)
wherein p is the horizontal pitch of the rectangular pinholes, w is the horizontal aperture width of the rectangular pinholes, m is the number of rectangular image elements I in the horizontal direction of the rectangular microimage array, l is the viewing distance, g is the spacing between the display screen and the rectangular pinhole array, and a is the ratio of the vertical width to the horizontal width of the rectangular pinhole array.
The ratio of the vertical width to the horizontal width of the rectangular pinhole array is 0.6, the horizontal pitch of the rectangular pinholes is p=5 mm, the horizontal aperture width of the rectangular pinholes is w=1 mm, the viewing distance is l=2000 mm, the distance between the display screen and the rectangular pinhole array is g=5 mm, and the number of rectangular image elements I in the horizontal direction of the rectangular micro-image array is m=40. The horizontal viewing angle, the vertical viewing angle, the horizontal resolution, the vertical resolution, the horizontal optical efficiency, and the vertical optical efficiency of the 3D image I and the 3D image II obtained according to formulas (1), (2), (3), and (4) are 54 °, 34 °, 40%, 20%, and 20%, respectively. The number of pixels in each row of the 3D image I and the 3D image II is 40, and the number of pixels in each column is 40, so that uniform resolution is realized.
Claims (6)
1. The integrated imaging double-vision 3D display device based on the rectangular polarization array is characterized by comprising a display screen, a rectangular polarization array, a rectangular pinhole array, polarized glasses I and polarized glasses II; the display screen is used for displaying a rectangular micro-image array, and the rectangular micro-image array is formed by alternately arranging rectangular image elements I and rectangular image elements II in the horizontal and vertical directions; the ratio of the horizontal pitch to the vertical pitch of the rectangular picture elements I and II is equal to the ratio of the horizontal width to the vertical width of the display screen; the horizontal width of the display screen is equal to the horizontal width of the rectangular polarization array; the vertical width of the display screen is equal to the vertical width of the rectangular polarization array; the rectangular polarization array is closely attached to the display screen and is positioned between the display screen and the rectangular pinhole array; the rectangular pinhole array is arranged in front of the rectangular polarization array in parallel; the display screen, the rectangular polarization array, the rectangular pinhole array is aligned correspondingly; in the rectangular pinhole array, the horizontal pitches of all the rectangular pinholes are the same, the vertical pitches of all the rectangular pinholes are the same, and the horizontal pitches of the rectangular pinholes are not equal to the vertical pitches of the rectangular pinholes; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array; the rectangular polarization array is formed by alternately arranging rectangular polarization units I and rectangular polarization units II in the horizontal and vertical directions, and the rectangular polarization units I are orthogonal to the polarization direction of the rectangular polarization units II; the ratio of the horizontal width to the vertical width of the rectangular polarizing array is equal to the ratio of the horizontal width to the vertical width of the rectangular pinhole array; the ratio of the horizontal pitch to the vertical pitch of the rectangular polarizing units I and II is equal to the ratio of the horizontal width to the vertical width of the rectangular polarizing array; in the rectangular polarization array, the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are the same, the vertical pitches of the rectangular polarization units I and the rectangular polarization units II are the same, and the horizontal pitches of the rectangular polarization units I and the rectangular polarization units II are not equal to the vertical pitches; the polarization direction of the polarized glasses I is the same as that of the rectangular polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the rectangular polarized unit II; the rectangular image element I is correspondingly aligned with the rectangular polarization unit I, and the rectangular image element II is correspondingly aligned with the rectangular polarization unit II; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the rectangular polarizing unit I, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the rectangular polarizing unit I; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the rectangular polarizing unit II, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the rectangular polarizing unit II; the rectangular image element I reconstructs a 3D image I through a rectangular pinhole and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through a rectangular pinhole and can only be seen through the polarized glasses II; the ratio of the horizontal aperture width of the rectangular pinhole to the horizontal pitch of the rectangular pinhole is most suitably between 10% and 20%, and the ratio of the vertical aperture width of the rectangular pinhole to the vertical pitch of the rectangular pinhole is most suitably between 10% and 20%.
2. The integrated imaging dual view 3D display device based on a rectangular polarizing array of claim 1, wherein the horizontal width of the rectangular polarizing array is equal to the horizontal width of the rectangular pinhole array; the vertical width of the rectangular polarizing array is equal to the vertical width of the rectangular pinhole array.
3. The integrated imaging dual vision 3D display device based on a rectangular polarizing array according to claim 2, wherein the horizontal pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the horizontal pitch of the rectangular pinhole, and the vertical pitch of the rectangular polarizing unit I and the rectangular polarizing unit II is equal to the vertical pitch of the rectangular pinhole.
4. The integrated imaging dual vision 3D display device based on a rectangular polarizing array of claim 3, wherein the ratio of the horizontal aperture width to the vertical aperture width of the rectangular pinholes is equal to the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes.
5. The integrated imaging dual vision 3D display device based on a rectangular polarizing array of claim 4, wherein the horizontal viewing angle, vertical viewing angle, horizontal resolution, vertical resolution, horizontal optical efficiency, vertical optical efficiency of the 3D image I and the 3D image II are respectively equal.
6. The integrated imaging dual view 3D display device based on rectangular polarizing array of claim 5, wherein the horizontal viewing angle θ of the 3D image I 1 Vertical viewing angle θ 2 Horizontal resolution R 1 Vertical resolution R 2 Horizontal optical efficiencyAnd vertical optical efficiency->The method comprises the following steps of:
R 1 ＝R 2 ＝m
wherein p is the horizontal pitch of the rectangular pinholes, w is the horizontal aperture width of the rectangular pinholes, m is the number of rectangular image elements I in the horizontal direction of the rectangular microimage array, l is the viewing distance, g is the spacing between the display screen and the rectangular pinhole array, and a is the ratio of the vertical width to the horizontal width of the rectangular pinhole array.
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| CN111781734B (en) * | 2020-08-30 | 2023-08-15 | 成都航空职业技术学院 | Dual-view 3D display device and method based on dual display screens |
| CN113031297B (en) * | 2021-04-01 | 2022-11-15 | 成都航空职业技术学院 | Double-vision 3D display method based on polarized glasses |
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