CN104020573B - A kind of multiple views 3D display device based on orthogonal polarization orientation backlight - Google Patents
A kind of multiple views 3D display device based on orthogonal polarization orientation backlight Download PDFInfo
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- CN104020573B CN104020573B CN201410243320.XA CN201410243320A CN104020573B CN 104020573 B CN104020573 B CN 104020573B CN 201410243320 A CN201410243320 A CN 201410243320A CN 104020573 B CN104020573 B CN 104020573B
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- light source
- display panel
- slit grating
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- shaped light
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Abstract
The present invention proposes a kind of multiple views 3D display device based on orthogonal polarization orientation backlight.This device is made up of cross polarization light source, slit grating and 2D display panels, and places successively.Cross polarization backlight and slit grating constitute orthogonal polarization orientation backlight, utilize the light-dividing principle of slit grating, and the light in the different polarization direction on cross polarization backlight can project in different horizontal directions.When the different cross polarization light of these projecting directions acts on 2D display panels, the pixel of odd-numbered line or sub-pixel can be projected onto some directions, and the pixel of even number line or sub-pixel can be projected onto other directions, thus provide anaglyph for different viewpoints.Compare with the same number of traditional slit grating 3D display of viewpoint, this device can be improved the standard resolution, promotes the display quality of image.
Description
Technical field
The present invention relates to 3D display technique, more particularly, the present invention relates to multiple views 3D display technique.
Background technology
Slit grating 3D display is a kind of without the need to any low cost grating 3D display helping the equipment of looking.The pixel of zones of different on 2D display panel, by vertical light transmission strip, projects in different horizontal directions by it, thus realizes 3D display.Multiple views slit grating 3D display can provide several anaglyphs in a plurality of directions, thus provides better stereo vision experience.Multiple views slit grating 3D display device is made up of 2D display panel and slit grating usually, and 2D display panel is for providing from same stereo scene
nwidth (
nbe greater than 2) anaglyph, slit grating utilizes the principle that is in the light, and these anaglyphs is carried out in the horizontal direction separately, forming different viewpoints.When beholder's eyes are in different viewpoints respectively, just can watch corresponding anaglyph, thus realize three-dimensional sense organ.But, beholder see image horizontal resolution (number of pixels of the every a line of image) be 1/ of 2D display screen
n, and its vertical resolution (number of pixels of each row of image) remains unchanged, such differences in resolution can worsen the display quality of image.
Summary of the invention
The present invention proposes a kind of multiple views 3D display device based on orthogonal polarization orientation backlight.As shown in Figure 1, this device is made up of cross polarization light source, slit grating and 2D display panel, and slit grating is positioned between cross polarization light source and 2D display panel.Cross polarization light source to be upwards alternately arranged at one-dimensional square by all identical strip-shaped light source of width and to form, and the polarization direction of adjacent strip-shaped light source is orthogonal, and the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent is not etc.The polarization direction of the adjacent lines of pixels on 2D display panel is orthogonal.The long axis direction of the strip-shaped light source in cross polarization light source is parallel with the slit direction of slit grating, and perpendicular to the pixel row direction on 2D display panel.
Accompanying drawing 2 is the structure principle chart of apparatus of the present invention, and the strip-shaped light source that on cross polarization light source, polarization direction is different, after slit modulation, has specific projecting direction, the pixel of polarization direction corresponding on 2D display panel can be shown in the direction indicated.If the width of the strip-shaped light source of apparatus of the present invention is
w s, the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent be respectively into
d swith
p s, slit grating slit width is
w b, raster pitch is
p b, the pixel wide of 2D display panel is
w p, adjacent viewpoint spacing is
v, cross polarization light source to the distance of slit grating is
d 1, slit grating to the distance of 2D display panel is
d 2, 2D display panel to the viewing ratio of viewpoint is
d 3, the anaglyph of apparatus of the present invention display is
nwidth.Preferably, these parameters should meet:
（1）
（2）
（3）
（4）
（5）
（6）
（7）
In formula,
kfor any positive integer,
ebehaviour eye pupil pitch of holes.
The viewing ratio of apparatus of the present invention is formed horizontal
nindividual viewpoint, when the left eye of beholder and right eye are in different viewpoints respectively, can see the different anaglyph corresponding from viewpoint, thus produce stereoscopic sensation.If the resolution of 2D display panel is
x×
y, then in each viewpoint, the resolution of corresponding anaglyph is (2
x/
n) × (
y/ 2).
Compare with the same number of traditional slit grating 3D display of viewpoint, apparatus of the present invention can be improved the standard resolution, thus improve the display quality of image.
four, accompanying drawing explanation
Accompanying drawing 1 is structural drawing of the present invention, and single arrow wherein represents the polarization direction of light source and 2D display panel pixel.
Accompanying drawing 2 is structure principle chart of the present invention, and wherein the black part of cross polarization light source divides expression herein without strip-shaped light source.
Accompanying drawing 3 is the Illumination Distribution figure of orthogonal polarization orientation backlight of the present invention in viewing ratio.
Accompanying drawing 4 is the intensity maps of apparatus of the present invention in viewing ratio.
Shown by reference numeral in above-mentioned accompanying drawing is:
1. cross polarization light source, 2. slit grating, 3.2D display panel.
Should be appreciated that above-mentioned accompanying drawing just schematically, do not draw in proportion.
five, embodiment
The following detailed description of utilizing the exemplary embodiments that the present invention is based on the multiple views 3D display device of orthogonal polarization orientation backlight, the present invention is further described specifically.What be necessary to herein means out is; following examples are only described further for the present invention; limiting the scope of the invention can not be interpreted as; this art skilled person makes some nonessential improvement and adjustment according to the invention described above content to the present invention, still belongs to protection scope of the present invention.
The a certain multiple views 3D display device based on orthogonal polarization orientation backlight is made up of cross polarization light source, slit grating and 2D display panel, and slit grating is positioned between cross polarization light source and 2D display panel.Cross polarization light source to be upwards alternately arranged at one-dimensional square by all identical strip-shaped light source of width and to form, and the polarization direction of adjacent strip-shaped light source is orthogonal, and the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent is not etc.The polarization direction of the adjacent lines of pixels on 2D display panel is orthogonal.The long axis direction of the strip-shaped light source in cross polarization light source is parallel with the slit direction of slit grating, and perpendicular to the pixel row direction on 2D display panel.In cross polarization backlight, the width of strip-shaped light source
w s=0.285mm, the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent be respectively into
d s=0.263mm and
p s=0.833mm, slit grating slit width
w b=0.562mm, raster pitch
p bon=1.64mm, 2D display panel, pixel is wide is
w p=0.42mm, adjacent viewpoint spacing
v=65mm, cross polarization light source is to the distance of slit grating
d 1=5mm, slit grating is to the distance of 2D display panel
d 2=2mm, 2D display panel is to the viewing ratio of viewpoint
d 3=388mm.
In example, the corresponding relation of above-mentioned parameter meets:
（1）
（2）
（3）
（4）
（5）
（6）
（7）
In this example,
k=1,
e=65mm.
The viewing ratio of apparatus of the present invention is formed 8 horizontal viewpoints, when the left eye of beholder and right eye are in different viewpoints respectively, the different anaglyph corresponding from viewpoint can be seen, thus produce stereoscopic sensation.In example, the resolution of 2D display panel is 960 × 600, and in each viewpoint, the resolution of corresponding anaglyph is 240 × 300.
Accompanying drawing 3 is the Illumination Distribution figure of orthogonal polarization orientation backlight of the present invention in viewing ratio, horizontal ordinate
xfor the displacement of horizontal direction in viewing ratio, ordinate is the relative exposure of this orthogonal polarization orientation backlight.From accompanying drawing 3, at the viewpoint place that round dot is indicated, all only have the illumination patterns of same polarization direction, therefore, between the light source that polarization direction is different, can not crosstalk be produced.
Accompanying drawing 4 is for the present invention is based on the relative brightness distribution of multiple views 3D display device each width anaglyph in viewing ratio of orthogonal polarization orientation backlight, horizontal ordinate
xfor the displacement of horizontal direction in viewing ratio, ordinate is the relative brightness of every width anaglyph.From accompanying drawing 4, vision area corresponding to every width anaglyph is arranged in order in the horizontal direction, does not have crosstalk between neighbouring viewing zones.
Claims (2)
1. the multiple views 3D display device based on orthogonal polarization orientation backlight, by cross polarization light source, slit grating and 2D display panel composition, slit grating is positioned between cross polarization light source and 2D display panel, 2D display panel is positioned between slit grating and beholder, cross polarization light source to be upwards alternately arranged at one-dimensional square by all identical strip-shaped light source of width and to form, the polarization direction of adjacent strip-shaped light source is orthogonal, the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent is not etc., the polarization direction of the adjacent lines of pixels on 2D display panel is orthogonal, the long axis direction of the strip-shaped light source in cross polarization light source is parallel with the slit direction of slit grating, and perpendicular to the pixel row direction on 2D display panel.
2. a kind of multiple views 3D display device based on orthogonal polarization orientation backlight according to claim 1, it is characterized in that, the width of strip-shaped light source is W
s, the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent is respectively D
sand P
s, slit grating slit width is W
b, raster pitch is P
b, the pixel wide of 2D display panel is W
p, adjacent viewpoint spacing is V, and cross polarization light source is d to the distance of slit grating
1, slit grating is d to the distance of 2D display panel
2, 2D display panel is d to the viewing ratio of viewpoint
3, anaglyph is N width, and these parameters should meet formula:
D
s＝P
s-2W
s，
E＝kV，
In formula, k is any positive integer, and E is people's eye pupil pitch of holes.
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105182554B (en) * | 2015-10-30 | 2017-06-09 | 成都工业学院 | A kind of slit grating auto-stereoscopic display device and method based on double-display screen |
| CN108076208B (en) * | 2016-11-15 | 2021-01-01 | 中兴通讯股份有限公司 | Display processing method and device and terminal |
| CN108196376A (en) * | 2018-01-22 | 2018-06-22 | 成都工业学院 | A kind of 3D display device |
| CN108388019B (en) * | 2018-03-21 | 2019-10-15 | 京东方科技集团股份有限公司 | A kind of 3D display device and display methods |
| CN108919506B (en) * | 2018-08-13 | 2024-02-23 | 成都航空职业技术学院 | Dual-view 3D display device and method |
| CN110361871B (en) * | 2019-07-28 | 2024-03-26 | 成都航空职业技术学院 | Double-vision 3D display device based on micro-lens array |
| CN110297335B (en) * | 2019-07-28 | 2024-04-05 | 福州恒美光电材料有限公司 | Double-vision 3D display device based on micro-lens array and polarization grating |
| CN112748570B (en) * | 2019-10-30 | 2023-11-10 | 驻景(广州)科技有限公司 | Orthogonal characteristic grating-pixel array pair and near-eye light field display module based on same |
| CN112505942B (en) * | 2021-02-03 | 2021-04-20 | 成都工业学院 | Multi-resolution stereoscopic display device based on rear projection light source |
| CN113741051B (en) * | 2021-09-11 | 2023-07-07 | 成都航空职业技术学院 | 3D display device with high imaging efficiency and wide viewing angle |
| CN113703176B (en) * | 2021-09-11 | 2023-05-30 | 成都航空职业技术学院 | 3D display device based on gradual change compound slit grating |
| CN113703177B (en) * | 2021-09-11 | 2022-05-17 | 成都工业学院 | 3D display device based on composite slit grating |
| CN115128811B (en) * | 2022-06-20 | 2024-01-12 | 中山大学 | Near-to-eye display module based on orthogonal characteristic pixel blocks |
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