CN102854626B - Naked grating two-dimensional and three-dimensional compatible display device - Google Patents
Naked grating two-dimensional and three-dimensional compatible display device Download PDFInfo
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- CN102854626B CN102854626B CN201110177979.6A CN201110177979A CN102854626B CN 102854626 B CN102854626 B CN 102854626B CN 201110177979 A CN201110177979 A CN 201110177979A CN 102854626 B CN102854626 B CN 102854626B
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- polarising means
- optically
- display screen
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- polarization
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Abstract
The invention provides a naked grating two-dimensional and three-dimensional compatible display device. The device consists of a display screen, a polarization device I, an optical rotation device and a polarization device II, wherein the polarization device I, the optical rotation device and the polarization device II are sequentially arranged before the display screen, the interval between the polarization device I and the display screen is S, the optical rotation device and the polarization device I are closely attached, and the polarization device II and the optical rotation device are closely attached. The polarization device I consists of polarization units which are arranged alternatively and have polarization characteristics, and transparent units which have no polarization characteristics. The optical rotation device comprises two layers of transparent conductive glass and rotation materials, and the optical rotation materials are arranged between the two layers of transparent conductive glass. The polarization device II is of a polarization element with even polarization characteristics.
Description
Technical field
The present invention relates to the three-dimensional compatible display technique of two dimension, more particularly, the present invention relates to and a kind of nakedly look the three-dimensional compatible display technique of grating two dimension.
Background technology
Multiple views is naked to be referred to bore hole can be provided to watch the stereo display technique of stereoscopic picture plane in multiple position for beholder depending on grating free 3 D display technology.The naked grating auto-stereoscopic display device structure of looking of multiple views is simple, without the need to beholder's wearing stereoscopic glasses, brings convenience to beholder.Multiple views is naked to be generally made up of display screen and Lenticular screen or slit grating depending on grating auto-stereoscopic display device, a stereo scene
n(
nbeing more than or equal to 2) the rear display of width anaglyph synthesis is on a display screen, the refraction of Lenticular screen or slit grating shield bars is utilized to be separated at viewing areas by the light of the anaglyph on display screen the effect of blocking of light and the printing opacity effect of light transmission strip to light, form stereos copic viewing region, beholder two accepts two width anaglyphs (left anaglyph and right anaglyph) wherein respectively, thus produces stereoscopic sensation.
When multiple views is naked can switch to two-dimensional model from three dimensional pattern depending on grating auto-stereoscopic display device time, such display device be called naked look grating two dimension three-dimensional compatible display device.
Summary of the invention
the present invention proposes a kind of nakedly to look the three-dimensional compatible display device of grating two dimension, and as shown in Figure 1, this device comprises display screen, polarising means
, optically-active device and polarising means
, polarising means
, optically-active device and polarising means
be placed on display screen front successively, polarising means
with the spacing of display screen be
s, optically-active device and polarising means
be close to, polarising means
be close to optically-active device.
Described polarising means
, comprise the polarization unit with polarization characteristic arranged in an alternating manner and the transparent cell without polarization characteristic.Accompanying drawing 2 is polarising means
structural representation, wherein horizontal strip part represents polarization unit available light to specific direction polarization characteristic, and white portion represents the transparent cell without polarization characteristic.
Preferably, described naked look grating two dimension three-dimensional compatible display device in, described polarising means
polarization unit and the width of transparent cell be respectively
w b ,
w s , wherein
w b with
w s value can be calculated by following formula:
(1)
(2)
In formula
w p represent the horizontal width of each sub-pixel on display screen,
qrepresent the spacing between adjacent viewpoint, approximate the interocular distance (being generally 65mm) of human eye,
nrepresent viewpoint number during three dimensional pattern, get the arbitrary integer being more than or equal to 2.
Preferably, described naked look grating two dimension three-dimensional compatible display device in, described polarising means
with the spacing of display screen be
s, wherein
scalculated by following formula:
(3)
In formula
lrepresent viewing ratio.
As shown in Figure 3, it comprises two-layer transparent conducting glass and optically activ material to described optically-active device, and optically activ material is placed between two-layer transparent conducting glass.When two-layer transparent conducting glass adds specific voltage, light is after optically-active device, and its direction of vibration rotates a special angle.During three dimensional pattern, regulate the input voltage of optically-active device, make the odd-multiple of the direction of vibration half-twist of the incident ray by optically-active device.Now, the light that display screen sends passes through polarising means
polarization unit Polarization Modulation, then by after the optically-active effect of optically-active device, not by polarising means
; And the light that display screen sends passes through polarising means
transparent cell, then by after the optically-active effect of optically-active device, can normal through polarising means
, now polarising means
, optically-active device and polarising means
coincidence has slit grating characteristic.During two-dimensional model, regulate the input voltage of optically-active device, make the even-multiple of the direction of vibration half-twist of the incident ray by optically-active device.Now, the light that display screen sends passes through polarising means
modulation, then by after the optically-active effect of optically-active device, can polarising means be passed through
continue to propagate, do not affect the normal Presentation Function of display screen.
Preferably, described naked look grating two dimension three-dimensional compatible display device in, described optically-active device can select twisted nematic liquid crystal as described optically activ material, selects ito glass as transparent conducting glass.When ito glass is without external voltage effect, the direction of vibration of incident ray will with the half-twist outgoing gradually of liquid crystal molecule direction of principal axis; Apply voltage to ito glass, 90 ° of optical activitys of twisted nematic liquid crystal disappear.
Described polarising means
for having the polarizer of even polarization characteristic, make, by whole incident raies of this device, there is identical polarization direction.The polarization direction of this device and polarising means
the polarization direction of middle polarization unit is consistent.
for the horizontal width of sub-pixel each on display screen
w p , three dimensional pattern time viewpoint number
n, spacing between adjacent viewpoint
qand viewing ratio
l, calculate polarising means according to formula (1) (2)
the width of polarization unit
w b with the width of transparent cell
w s , then calculate polarising means according to formula (3)
to the spacing of display screen
s.By the polarising means designed
, optically-active device and polarising means
be installed in order on display screen, just achieve and a kind of nakedly look the three-dimensional compatible display device of grating two dimension.
Accompanying drawing explanation
The three-dimensional compatible display device schematic diagram of grating two dimension looked by accompanying drawing 1 for one of the present invention is naked.
Accompanying drawing 2 is polarising means of the present invention
structural representation.
Accompanying drawing 3 is the structural representation of optically-active device of the present invention.
Polarising means when accompanying drawing 4 is three dimensional pattern of the present invention
, optically-active device and polarising means
working state schematic representation.
Accompanying drawing 5 is three-dimensional display mode principle schematic of the present invention.
Polarising means when accompanying drawing 6 is two-dimensional model of the present invention
, optically-active device and polarising means
working state schematic representation.
Shown by reference numeral in above-mentioned accompanying drawing is:
(1) display screen, (2) polarising means
, (3) optically-active device, (4) polarising means II, (5) polarising means
transparent cell, (6) polarising means
polarization unit, the transparent conducting glass of (7) optically-active device, the optically activ material of (8) optically-active device.
Should be appreciated that above-mentioned accompanying drawing just schematically, do not draw in proportion.
Embodiment
The following detailed description of utilizing a kind of naked embodiment of looking the three-dimensional compatible display device of grating two dimension of the present invention, the present invention is conducted further description.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 foregoing invention content to the present invention, still belongs to protection scope of the present invention.
The present invention proposes a kind of nakedly to look the three-dimensional compatible display device of grating two dimension, and as shown in Figure 1, this device comprises display screen, polarising means
, optically-active device and polarising means
.Polarising means
, optically-active device and polarising means
be placed on display screen front successively, polarising means
with the spacing of display screen be
s, optically-active device and polarising means
be close to placement, polarising means
placement is close to optically-active device.
This naked look grating two dimension three-dimensional compatible display device in, for the horizontal width of sub-pixel each on display screen
w p , three dimensional pattern time viewpoint number
n, spacing between adjacent viewpoint
qand viewing ratio
l, described polarising means
the width of polarization unit
w b with the width of transparent cell
w s calculated by following formula:
(1)
(2)。
This naked look grating two dimension three-dimensional compatible display device in, described polarising means
with the spacing of display screen
scalculated by following formula:
(3)。
This naked look grating two dimension three-dimensional compatible display device in, described optically-active device selects twisted nematic liquid crystal as described optically activ material, selects ito glass as transparent conducting glass.During three dimensional pattern, ito glass is without external voltage effect, and incident ray will with liquid crystal molecule direction of principal axis half-twist gradually, and the light that display screen is sent passes through polarising means
polarization unit Polarization Modulation, then by after the optically-active effect of optically-active device, not by polarising means
; And the light that display screen sends passes through polarising means
transparent cell, then by after the optically-active effect of optically-active device, can normal through polarising means
, now polarising means
, optically-active device and polarising means
coincidence has slit grating characteristic, as shown in Figure 4.Attachedly Figure 5 shows that three-dimensional display mode principle schematic of the present invention, the label in figure represents that this sub-pixel is used to show which width anaglyph, and the light that display screen sends is through polarising means
, optically-active device and polarising means
modulation after, separate at viewing areas, form stereos copic viewing viewpoint, realize 3-D display effect.During two-dimensional model, apply voltage to ito glass, 90 ° of optical activitys of twisted nematic liquid crystal disappear, and the direction of vibration of the incident ray by optically-active device is not changed, and the light that display screen sends is through polarising means
modulation, then by after optically-active device, can polarising means be passed through
continue to propagate, do not affect the normal Presentation Function of display screen, as shown in Figure 6.
This naked look grating two dimension three-dimensional compatible display device in, described polarising means
for having the polarizer of even polarization characteristic, make, by whole incident raies of this device, there is identical polarization direction.The polarization direction of this device and polarising means
the polarization direction of middle polarization unit is consistent.
For the horizontal width of sub-pixel each on display screen
w p , three dimensional pattern time viewpoint number
n, spacing between adjacent viewpoint
qand viewing ratio
l, calculate polarising means according to formula (1) (2)
the width of polarization unit
w b with the width of transparent cell
w s , then calculate polarising means according to formula (3)
to the spacing of display screen
s.By the polarising means designed
, optically-active device and polarising means
be installed in order on display screen, just achieve and a kind of nakedly look the three-dimensional compatible display device of grating two dimension.
One 42 cun naked looks the three-dimensional compatible display device of grating two dimension, and display screen is LCDs, the horizontal width of each sub-pixel on it
w p for 0.1614mm, the spacing between adjacent viewpoint
qthe interocular distance 65mm of human eye should be approximated, viewing viewpoint number during three dimensional pattern
nbe 8, viewing ratio
lfor 2000mm.Polarising means is calculated by formula (3)
with the spacing of display screen
sfor 4.9539mm; Polarising means
polarization unit there is the polarization characteristic of horizontal direction, calculate polarising means by formula (1) and (2)
the width of polarization unit
w b for 1.1270mm, the width of transparent cell
w s for 0.1610mm; Optically-active device adopts twisted nematic liquid crystal and ito glass to make; Polarising means
there is the polarization characteristic of horizontal direction.By regulating the voltage be applied on optically-active device, the optically-active angle of this optically-active device can be regulated, controlling to pass through polarising means
, optically-active device and polarising means
light beam, thus realize nakedly looking the three-dimensional compatible display of grating two dimension.
Claims (3)
1. one kind naked look grating two dimension three-dimensional compatible display device, it is characterized in that, this device comprises display screen, polarising means I, optically-active device and polarising means II, polarising means I has the polarization characteristic unit and transparent cell that are alternately arranged, polarising means II has even polarization characteristic, polarising means I, optically-active device and polarising means II are placed on display screen front successively, and the spacing of polarising means I and display screen is
soptically-active device and polarising means I are close to, polarising means II and optically-active device are close to, and during two-dimensional model, regulate the input voltage of optically-active device, make the even-multiple of the direction of vibration half-twist of the incident ray by optically-active device, now, the light that display screen sends by the modulation of polarising means I, then by after the optically-active effect of optically-active device, can continue to propagate by polarising means II, not affect the normal Presentation Function of display screen; During three dimensional pattern, regulate the input voltage of optically-active device, make the odd-multiple of the direction of vibration half-twist of the incident ray by optically-active device, now, the light that display screen sends is by the polarization unit Polarization Modulation of polarising means I, then by after the optically-active effect of optically-active device, not by polarising means II; And the light that display screen sends is by the transparent cell of polarising means I, then by after the optically-active effect of optically-active device, can normal through polarising means II, the now combination of polarising means I, optically-active device and polarising means II has slit grating characteristic.
2. one according to claim 1 is naked looks the three-dimensional compatible display device of grating two dimension, it is characterized in that, described polarising means I, comprise the polarization unit with polarization characteristic arranged in an alternating manner and the transparent cell without polarization characteristic, the described polarization unit of polarising means I and the width of transparent cell are respectively
w b ,
w s , wherein
w b with
w s value can by formula
with
w b =(
n-
1)
w s calculate, in formula
w p represent the horizontal width of each sub-pixel on display screen,
qrepresent the spacing between adjacent viewpoint, approximate the interocular distance of human eye,
nrepresent viewpoint number during three dimensional pattern, get the arbitrary integer being more than or equal to 2.
3. one according to claim 1 is naked looks the three-dimensional compatible display device of grating two dimension, it is characterized in that, the spacing of described polarising means I and display screen
scomputing formula be
, wherein
w p represent the horizontal width of each sub-pixel on display screen,
qrepresent the spacing between adjacent viewpoint,
lrepresent viewing ratio.
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| CN201110177979.6A CN102854626B (en) | 2011-06-29 | 2011-06-29 | Naked grating two-dimensional and three-dimensional compatible display device |
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|---|---|---|---|
| CN201110177979.6A CN102854626B (en) | 2011-06-29 | 2011-06-29 | Naked grating two-dimensional and three-dimensional compatible display device |
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| CN102854626B true CN102854626B (en) | 2015-01-14 |
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| CN103676178B (en) * | 2013-12-19 | 2018-05-29 | 深圳市华星光电技术有限公司 | A kind of display |
| CN104460012B (en) * | 2014-11-20 | 2017-03-29 | 深圳市奥拓电子股份有限公司 | LED naked-eye 3D display device and its assembly method |
| CN104658434B (en) * | 2015-03-20 | 2017-02-01 | 京东方科技集团股份有限公司 | Display device and display system |
| CN105093554B (en) * | 2015-08-24 | 2017-07-11 | 京东方科技集团股份有限公司 | A kind of 3D display modules and preparation method thereof, display device |
| CN106773089A (en) * | 2017-01-24 | 2017-05-31 | 句容福芯电子有限公司 | Three-dimensional display apparatus based on polarization holographic grating |
| CN114527581B (en) * | 2022-03-02 | 2023-09-05 | 北京京东方技术开发有限公司 | Display system and display control method thereof |
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| CN1841125A (en) * | 2004-11-29 | 2006-10-04 | 三星电子株式会社 | Autostereoscopic display |
| CN201138395Y (en) * | 2007-05-11 | 2008-10-22 | 安徽华东光电技术研究所 | Autostereoscopic display |
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| WO2005106563A2 (en) * | 2004-05-05 | 2005-11-10 | Spielberger Juergen | System for observing stereoscopic images |
| KR100839414B1 (en) * | 2007-04-19 | 2008-06-19 | 삼성에스디아이 주식회사 | Electronic display device |
| KR100927720B1 (en) * | 2007-08-24 | 2009-11-18 | 삼성모바일디스플레이주식회사 | Electronic imaging equipment |
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| CN1841125A (en) * | 2004-11-29 | 2006-10-04 | 三星电子株式会社 | Autostereoscopic display |
| CN201138395Y (en) * | 2007-05-11 | 2008-10-22 | 安徽华东光电技术研究所 | Autostereoscopic display |
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