CN211791830U - Integrated imaging 3D display device based on point light source and polarization array - Google Patents
Integrated imaging 3D display device based on point light source and polarization array Download PDFInfo
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- CN211791830U CN211791830U CN201820889543.7U CN201820889543U CN211791830U CN 211791830 U CN211791830 U CN 211791830U CN 201820889543 U CN201820889543 U CN 201820889543U CN 211791830 U CN211791830 U CN 211791830U
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Abstract
The utility model provides an integrated formation of image 3D display device based on pointolite and polarization array, including pointolite array, display screen, polarization array I and polarization array II. The light of the point light source array is used for illuminating the micro-image array, so the optical efficiency is independent of the diameter of the point light source; each point light source can only illuminate the image element corresponding to the point light source, and can not illuminate the image element adjacent to the image element corresponding to the point light source, so that the crosstalk of the adjacent image elements is eliminated.
Description
Technical Field
The utility model relates to an integrated formation of image 3D shows, more specifically says, the utility model relates to an integrated formation of image 3D display device based on pointolite and polarization array.
Background
The integrated imaging 3D display technology is a true 3D display technology without any vision-aid device. The technology has the characteristic of being watched by naked eyes, the recording and displaying processes are relatively simple, and the technology can display full-parallax and full-true-color stereo images, and is one of hot spot technologies of 3D display at present. The optical efficiency of an integrated imaging 3D display based on a pinhole array is related to the aperture ratio and is therefore too low. Crosstalk between adjacent picture elements in the horizontal and vertical directions is one of the factors that limit the wide application of integrated imaging 3D displays.
Disclosure of Invention
In order to solve the problem that the optical efficiency is too low and the crosstalk of adjacent image elements in the horizontal and vertical directions, the utility model provides a following technical scheme:
the utility model provides an integrated formation of image 3D display device based on pointolite and polarization array, as shown in FIG. 1 and FIG. 2, including pointolite array, display screen, polarization array I and polarization array II. The display screen is used for displaying the micro-image array. The display screen is arranged in parallel right in front of the point light source array. The center of the point light source array is correspondingly aligned with the center of the display screen. The polarization array I is tightly attached to the point light source array, and the center of the polarization array I is correspondingly aligned with the center of the point light source array. The polarization array II is tightly attached to the display screen, and the center of the polarization array II is correspondingly aligned with the center of the display screen. The polarization array I is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal. The polarization array II is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal. The pitch of the polarization units in the polarization array I is equal to that of the point light sources; the pitch of the polarizing elements in polarizing array II is equal to the pitch of the picture elements. The point light source array is formed by arranging a plurality of point light sources with the same parameters at intervals, and the micro-image array is formed by closely arranging a plurality of image elements with the same parameters. The polarization direction of the polarization unit attached to the point light source in the polarization array I is the same as the polarization direction of the polarization unit attached to the image element corresponding to the point light source in the polarization array II. The light of the point light source array is used for illuminating the micro-image array, so the optical efficiency is independent of the diameter of the point light source; each point light source can only illuminate the image element corresponding to the point light source, and can not illuminate the image element adjacent to the image element corresponding to the point light source, so that the crosstalk of the adjacent image elements is eliminated.
Preferably, the diameter of the point light source iswThe pitches of point light sources and picture elements are allpThe distance between the micro image array and the point light source array isgThe brightness of the point light source array isC. At a viewing distancelHorizontal viewing angleθ 1Vertical viewing angleθ 2And brightnessaRespectively as follows:
wherein the content of the first and second substances,mandnthe number of units of the micro image array and the point light source array in the horizontal direction and the vertical direction respectively.
Compared with the prior art, the beneficial effects of the utility model are that: the light of the point light source array of the utility model is used for illuminating the micro-image array, so the optical efficiency is irrelevant to the diameter of the point light source; each point light source can only illuminate the image element corresponding to the point light source, and can not illuminate the image element adjacent to the image element corresponding to the point light source, so that the crosstalk of the adjacent image elements is eliminated.
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FIG. 1 is the utility model discloses a schematic diagram of horizontal viewing visual angle that integrated formation of image 3D shows
Figure 2 is the utility model discloses a schematic diagram of integrated formation of image 3D shows that watches the visual angle perpendicularly
The reference numbers in the figures are:
1. point light source array, 3 polarization array I, 4 polarization array II, 6 display screen.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The following describes in detail an exemplary embodiment of the integrated imaging 3D display device based on point light sources and polarization arrays, and the present invention is further described in detail. 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 an integrated formation of image 3D display device based on pointolite and polarization array, as shown in FIG. 1 and FIG. 2, including pointolite array, display screen, polarization array I and polarization array II. The display screen is used for displaying the micro-image array. The display screen is arranged in parallel right in front of the point light source array. The center of the point light source array is correspondingly aligned with the center of the display screen. The polarization array I is tightly attached to the point light source array, and the center of the polarization array I is correspondingly aligned with the center of the point light source array. The polarization array II is tightly attached to the display screen, and the center of the polarization array II is correspondingly aligned with the center of the display screen. The polarization array I is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal. The polarization array II is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal. The pitch of the polarization units in the polarization array I is equal to that of the point light sources; the pitch of the polarizing elements in polarizing array II is equal to the pitch of the picture elements. The point light source array is formed by arranging a plurality of point light sources with the same parameters at intervals, and the micro-image array is formed by closely arranging a plurality of image elements with the same parameters. The polarization direction of the polarization unit attached to the point light source in the polarization array I is the same as the polarization direction of the polarization unit attached to the image element corresponding to the point light source in the polarization array II. The light of the point light source array is used for illuminating the micro-image array, so the optical efficiency is independent of the diameter of the point light source; each point light source can only illuminate the image element corresponding to the point light source, and can not illuminate the image element adjacent to the image element corresponding to the point light source, so that the crosstalk of the adjacent image elements is eliminated.
Preferably, the diameter of the point light source iswThe pitches of point light sources and picture elements are allpThe distance between the micro image array and the point light source array isgThe brightness of the point light source array isC. At a viewing distancelHorizontal viewing angleθ 1Vertical viewing angleθ 2And brightnessaRespectively as follows:
wherein the content of the first and second substances,mandnthe number of units of the micro image array and the point light source array in the horizontal direction and the vertical direction respectively.
The micro image array and the point light source array both comprise 11 multiplied by 11 units, wherein 11 units are arranged in the horizontal direction, 11 units are arranged in the vertical direction, and the distance between the micro image array and the point light source array isg=10mm, pitch of image element and point light sourcep=10mm, viewing distancel=500mm, brightness of point light source arrayC=30cd/m2The diameter of the point light source isw=3mm, calculated from equations (1), (2) and (3), the horizontal viewing angle of the integrated imaging 3D display is 59 °, the vertical viewing angle is 59 °, and the luminance is 30cd/m2。
Claims (2)
1. The integrated imaging 3D display device based on the point light source and the polarization array is characterized by comprising a point light source array, a display screen, a polarization array I and a polarization array II; the display screen is used for displaying the micro-image array; the display screen is arranged in parallel right in front of the point light source array; the center of the point light source array is correspondingly aligned with the center of the display screen; the polarization array I is tightly attached to the point light source array, and the center of the polarization array I is correspondingly aligned with the center of the point light source array; the polarization array II is tightly attached to the display screen, and the center of the polarization array II is correspondingly aligned with the center of the display screen; the polarization array I is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal; the polarization array II is formed by closely arranging a series of polarization units with the same size in the horizontal and vertical directions, each polarization unit only has one polarization direction, and the polarization directions of any two adjacent polarization units in the horizontal and vertical directions are orthogonal; the pitch of the polarization units in the polarization array I is equal to that of the point light sources; the pitch of the polarizing elements in the polarizing array II is equal to the pitch of the picture elements; the point light source array is formed by arranging a plurality of point light sources with the same parameters at intervals, and the micro-image array is formed by closely arranging a plurality of image elements with the same parameters; the polarization direction of the polarization unit attached to the point light source in the polarization array I is the same as the polarization direction of the polarization unit attached to the image element corresponding to the point light source in the polarization array II; the light of the point light source array is used for illuminating the micro-image array, so the optical efficiency is independent of the diameter of the point light source; each point light source can only illuminate the image element corresponding to the point light source, and can not illuminate the image element adjacent to the image element corresponding to the point light source, so that the crosstalk of the adjacent image elements is eliminated.
2. The integrated imaging 3D display device based on point light source and polarization array of claim 1, wherein the diameter of the point light source iswThe pitches of point light sources and picture elements are allpThe distance between the micro image array and the point light source array isgThe brightness of the point light source array isC(ii) a At a viewing distancelHorizontal viewing angleθ 1Vertical viewing angleθ 2And brightnessaRespectively as follows:
wherein the content of the first and second substances,mandnthe number of units of the micro image array and the point light source array in the horizontal direction and the vertical direction respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820889543.7U CN211791830U (en) | 2018-06-09 | 2018-06-09 | Integrated imaging 3D display device based on point light source and polarization array |
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| CN201820889543.7U CN211791830U (en) | 2018-06-09 | 2018-06-09 | Integrated imaging 3D display device based on point light source and polarization array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859372A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Double-vision 3D display method based on composite pinhole array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859372A (en) * | 2021-04-01 | 2021-05-28 | 成都工业学院 | Double-vision 3D display method based on composite pinhole array |
| CN112859372B (en) * | 2021-04-01 | 2022-11-11 | 成都航空职业技术学院 | Double-vision 3D display method based on composite pinhole array |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201027 Termination date: 20210609 |