CN104020573A - Multi-view 3D display device based on cross-polarization directional backlight source - Google Patents

Multi-view 3D display device based on cross-polarization directional backlight source Download PDF

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Publication number
CN104020573A
CN104020573A CN201410243320.XA CN201410243320A CN104020573A CN 104020573 A CN104020573 A CN 104020573A CN 201410243320 A CN201410243320 A CN 201410243320A CN 104020573 A CN104020573 A CN 104020573A
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light source
display panel
strip
slit grating
polarization
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CN201410243320.XA
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CN104020573B (en
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王琼华
吕国皎
赵悟翔
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Sichuan University
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Sichuan University
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Abstract

The invention discloses a multi-view 3D display device based on a cross-polarization directional backlight source. The device is composed of a cross-polarization light source, a slit grating and a 2D liquid crystal display panel which are arranged in sequence. The cross-polarization light source and the slit grating form the cross-polarization directional backlight source, light in different polarization directions on the cross-polarization light source is projected in different horizontal directions by means of the light splitting principle of the slit grating, and when the cross-polarization light with different projection directions acts on the 2D liquid crystal display panel, pixels or sub-pixels on the odd-number rows can be projected to certain directions, pixels or sub-pixels on the even-number rows can be projected to other certain directions, and then parallax images can be provided for different visual points. Compared with a traditional slit grating 3D display with equal number of visual points, the device can improve horizontal resolution and the display quality of images.

Description

A kind of many viewpoints 3D display device based on orthogonal polarization orientation backlight
Technical field
The present invention relates to 3D display technique, more particularly, the present invention relates to many viewpoints 3D display technique.
Background technology
Slit grating 3D display is a kind of without any low cost grating 3D display that helps the equipment of looking.It,, by vertical light transmission strip, projects the pixel of zones of different on 2D display panel in different horizontal directions, shows thereby realize 3D.Many viewpoints slit grating 3D shows can provide several anaglyphs in multiple directions, thereby provides better stereoscopic vision to experience.Many viewpoints slit grating 3D display device is made up of 2D display panel and slit grating conventionally, and 2D display panel is for providing from same stereo scene nwidth ( nbe greater than 2) anaglyph, the slit grating utilization principle that is in the light, separates these anaglyphs in the horizontal direction, forms different viewpoints.When beholder's eyes are during respectively in different viewpoint, just can watch corresponding anaglyph, thereby realize three-dimensional sense organ.But, the horizontal resolution (number of pixels of the every a line of image) of image that beholder sees for 2D display screen 1/ 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 many viewpoints 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 by width all identical strip-shaped light source one-dimensional square upwards alternative arrangement 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.
The structure principle chart that accompanying drawing 2 is apparatus of the present invention, on cross polarization light source, the different strip-shaped light source in polarization direction, after slit modulation, has specific projecting direction, the pixel of corresponding polarization direction on 2D display panel can be shown on assigned direction.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 that apparatus of the present invention show 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.
In the viewing ratio of apparatus of the present invention, form horizontal nindividual viewpoint, when beholder's left eye and right eye are during respectively in different viewpoint, can see the different anaglyph corresponding from viewpoint, thereby produce stereoscopic sensation.If the resolution of 2D display panel is x× y, 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 resolution of can improving the standard, thus promote the display quality of image.
four, brief description of the drawings
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, not drafting in proportion.
five, embodiment
Describe an exemplary embodiments utilizing the many viewpoints 3D display device that the present invention is based on orthogonal polarization orientation backlight below in detail, the present invention is further described specifically.Be necessary to be pointed out that at this; following examples are only described further for the present invention; can not be interpreted as limiting the scope of the invention; 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.
A certain many viewpoints 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 by width all identical strip-shaped light source one-dimensional square upwards alternative arrangement 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.In cross polarization backlight, the width of strip-shaped light source w s=0.285 mm, the spacing of two strip-shaped light sources that a certain strip-shaped light source is adjacent be respectively into d s=0.263 mm and p s=0.833 mm, slit grating slit width w b=0.562 mm, raster pitch p b=1.64 mm, on 2D display panel, pixel is wide is w p=0.42 mm, adjacent viewpoint spacing v=65 mm, cross polarization light source is to the distance of slit grating d 1=5 mm, slit grating is to the distance of 2D display panel d 2=2 mm, 2D display panel is to the viewing ratio of viewpoint d 3=388 mm.
In example, the corresponding relation of above-mentioned parameter meets:
（1）
（2）
（3）
（4）
（5）
（6）
（7）
In this example, k=1, e=65 mm.
In the viewing ratio of apparatus of the present invention, form 8 horizontal viewpoints, when beholder's left eye and right eye are during respectively in different viewpoint, can see the different anaglyph corresponding from viewpoint, thereby 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, the viewpoint place of indicating at round dot, all only has the illumination patterns of same polarization direction, therefore, between the different light source in polarization direction, can not produce and crosstalk.
Accompanying drawing 4 is that the relative brightness that the present invention is based on many viewpoints 3D display device each width anaglyph in viewing ratio of orthogonal polarization orientation backlight distributes, 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, between adjacent vision area, do not crosstalk.

Claims (2)

1. the many viewpoints 3D display device based on orthogonal polarization orientation backlight is 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, 2D cross polarization light source by width all identical strip-shaped light source one-dimensional square upwards alternative arrangement 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 many viewpoints 3D display device based on orthogonal polarization orientation backlight according to claim 1, 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 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, anaglyph is nwidth, these parameters should meet formula:
，
，
，
，
，
，
，
In formula, kfor any positive integer, ebehaviour eye pupil pitch of holes.
CN201410243320.XA 2014-06-04 2014-06-04 A kind of multiple views 3D display device based on orthogonal polarization orientation backlight Active CN104020573B (en)

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WO2018090923A1 (en) * 2016-11-15 2018-05-24 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
CN108388019A (en) * 2018-03-21 2018-08-10 京东方科技集团股份有限公司 A kind of 3D display device and display methods
CN108919506A (en) * 2018-08-13 2018-11-30 成都工业学院 A kind of double vision 3D display device and method
CN110297335A (en) * 2019-07-28 2019-10-01 成都工业学院 Double vision 3D display device based on microlens array and polarization grating
CN110361871A (en) * 2019-07-28 2019-10-22 成都工业学院 Double vision 3D display device based on microlens array
CN112505942A (en) * 2021-02-03 2021-03-16 成都工业学院 Multi-resolution stereoscopic display device based on rear projection light source
CN112748570A (en) * 2019-10-30 2021-05-04 驻景(广州)科技有限公司 Orthogonal characteristic grating-pixel array pair and near-to-eye light field display module based on same
CN113703176A (en) * 2021-09-11 2021-11-26 成都工业学院 3D display device based on gradual change composite slit grating
CN113703177A (en) * 2021-09-11 2021-11-26 成都工业学院 3D display device based on composite slit grating
CN113741051A (en) * 2021-09-11 2021-12-03 成都工业学院 3D display device with high imaging efficiency and wide viewing angle
CN115128811A (en) * 2022-06-20 2022-09-30 中山大学 Near-to-eye display module based on orthogonal characteristic pixel block

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Publication number Priority date Publication date Assignee Title
CN105182554A (en) * 2015-10-30 2015-12-23 成都工业学院 Slit grating free three-dimensional display device based on double display screen and method
WO2018090923A1 (en) * 2016-11-15 2018-05-24 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
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CN108388019A (en) * 2018-03-21 2018-08-10 京东方科技集团股份有限公司 A kind of 3D display device and display methods
CN108919506A (en) * 2018-08-13 2018-11-30 成都工业学院 A kind of double vision 3D display device and method
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
CN110297335A (en) * 2019-07-28 2019-10-01 成都工业学院 Double vision 3D display device based on microlens array and polarization grating
CN110361871A (en) * 2019-07-28 2019-10-22 成都工业学院 Double vision 3D display device based on microlens 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
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
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
CN112748570A (en) * 2019-10-30 2021-05-04 驻景(广州)科技有限公司 Orthogonal characteristic grating-pixel array pair and near-to-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
CN112505942A (en) * 2021-02-03 2021-03-16 成都工业学院 Multi-resolution stereoscopic display device based on rear projection light source
CN113703177B (en) * 2021-09-11 2022-05-17 成都工业学院 3D display device based on composite slit grating
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
CN113741051A (en) * 2021-09-11 2021-12-03 成都工业学院 3D display device with high imaging efficiency and wide viewing angle
CN113703177A (en) * 2021-09-11 2021-11-26 成都工业学院 3D display device based on composite slit grating
CN113703176A (en) * 2021-09-11 2021-11-26 成都工业学院 3D display device based on gradual change composite slit grating
CN115128811A (en) * 2022-06-20 2022-09-30 中山大学 Near-to-eye display module based on orthogonal characteristic pixel block
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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