CN201897675U - Liquid crystal grating and planar/stereoscopic switchable liquid-crystal display device - Google Patents
Liquid crystal grating and planar/stereoscopic switchable liquid-crystal display device Download PDFInfo
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- CN201897675U CN201897675U CN201020503901XU CN201020503901U CN201897675U CN 201897675 U CN201897675 U CN 201897675U CN 201020503901X U CN201020503901X U CN 201020503901XU CN 201020503901 U CN201020503901 U CN 201020503901U CN 201897675 U CN201897675 U CN 201897675U
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Abstract
The utility model provides a liquid crystal grating and a planar/stereoscopic switchable liquid-crystal display device employing the liquid crystal grating. The liquid crystal grating comprises a first transparent electrode layer and a second transparent electrode layer, which are arranged oppositely at interval; the first transparent electrode layer comprises a plurality of transverse electrode bars; the second transparent electrode layer comprises a plurality of vertical electrode bars; the transverse electrode bars and the vertical electrode bars are mutually arranged at intervals to form a plurality of grating grids; the vertical electrode bars are obliquely arranged relative to the vertical direction, and the angle of inclination of the vertical electrode bars is less than 90 degrees. The planar/stereoscopic switchable liquid-crystal display device enables a user to observe a stereo image in two directions and also avoids the color cast phenomenon.
Description
Technical field
The utility model relates to a kind of liquid crystal grating and uses plane/stereo (2D/3D) switchable liquid crystal display device (LCD) of this liquid crystal grating.
Background technology
Real world is the 3 D stereo world, the eyes that it is behaved provide two width of cloth to have the image of phasic difference, promptly form the required parallax of stereoscopic vision after mirroring eyes, reflect through the fusion of optic nerve maincenter like this, and the visual psychology reaction has just produced the 3 D stereo sensation.Utilize this principle, left figure and the right figure that two width of cloth have phasic difference presented to left eye and right eye respectively, just can obtain stereo perception by display device.
Along with the continuous development of stereo display technique, occur a kind ofly asking the automatic stereo liquid crystal indicator of conversion, and claim that this technology is the parallax barrier technique in the plane/stereo pattern.The implementation method of parallax barrier technique is to use a switch liquid crystal display, a polarizing coating and a high molecule liquid crystal layer, utilizes a liquid crystal layer to produce the vertical stripes that a series of optical direction becomes 90 ° with one deck polarizing coating.These stripeds are wide tens microns, and the light by these stripeds has just formed vertical slice grid pattern, is referred to as " parallax barrier ".When the stereo display pattern, which eyes can see which pixel on the LCDs just controlled by these parallax barriers.In the time of should being presented on the liquid crystal display by the image that left eye is seen, opaque striped can block right eye; In like manner, in the time of should being presented on the liquid crystal display by the image that right eye is seen, opaque striped can block left eye.If liquid crystal shutter is turned off, display device just can become common two-dimensional display.
Yet, there is following problem in above-mentioned automatic stereo liquid crystal indicator: only just meet parallax barrier principle when the eyes line is vertical with stripe direction, thereby observe stereo-picture, and when the eyes line is parallel with stripe direction, owing to do not meet parallax barrier principle, so can't observe stereo-picture.
The utility model content
Only can be at the prior art plane/stereo switchable liquid crystal display device from folk prescription to the problem of observing stereo-picture, the utility model provides a kind of can observe the liquid crystal grating of stereo-picture and the plane/stereo switchable liquid crystal display device of using this liquid crystal grating from level and vertical direction.
A kind of liquid crystal grating switches in order to the liquid crystal display module is carried out plane/stereo.This liquid crystal grating comprises first transparent electrode layer and second transparent electrode layer that relative spacing is provided with, this first transparent electrode layer comprises a plurality of transverse electrode bars, this second hyaline layer comprises a plurality of vertical electrode strips, this transverse electrode bar is provided with this vertical electrode strip space and forms a plurality of grating grids, the relative vertical direction of this vertical electrode strip is obliquely installed, and its angle of inclination is less than 90 °.
As the further improvement of above-mentioned liquid crystal grating, this first transparent electrode layer comprises a plurality of first transverse electrode bars and a plurality of second transverse electrode bar, this first transverse electrode bar and interlaced being spaced of this second transverse electrode bar.
As the further improvement of above-mentioned liquid crystal grating, this second transparent electrode layer comprises a plurality of first vertical electrode strip and a plurality of second vertical electrode strip, and this first vertical electrode strip and this second be vertical, and electrode strip is interlaced is spaced.
As the further improvement of above-mentioned liquid crystal grating, this grating grid comprises first length and second length along first direction, and this first length and this second length are different, and adjacent one-tenth periodic arrangement.
As the further improvement of above-mentioned liquid crystal grating, this first direction is parallel to the bearing of trend of this transverse electrode bar.
As the further improvement of above-mentioned liquid crystal grating, this grating grid comprises the 3rd length and the 4th length along second direction, and the 3rd length and the 4th length are different, and adjacent one-tenth periodic arrangement.
As the further improvement of above-mentioned liquid crystal grating, this second direction is perpendicular to this first direction.
A kind of plane/stereo switchable liquid crystal display device, the liquid crystal grating that it comprises the liquid crystal display module and is arranged on this liquid crystal display module the place ahead.This liquid crystal grating comprises first transparent electrode layer and second transparent electrode layer that relative spacing is provided with, this first transparent electrode layer comprises a plurality of transverse electrode bars, this second hyaline layer comprises a plurality of vertical electrode strips, this transverse electrode bar is provided with this vertical electrode strip space and forms a plurality of grating grids, the relative vertical direction of this vertical electrode strip is obliquely installed, and its angle of inclination is less than 90 °.
Further improvement as above-mentioned plane/stereo switchable liquid crystal display device, this liquid crystal display module comprises a plurality of RGB vittas, this transverse electrode bar is perpendicular to this RGB vitta, and this vertical electrode strip this RGB vitta relatively is obliquely installed, and its angle of inclination is less than 90 °.
As the further improvement of above-mentioned plane/stereo switchable liquid crystal display device, this plane/stereo switchable liquid crystal display device further comprises module backlight, and this module backlight is arranged on the rear of this liquid crystal display module.
Plane/stereo switchable liquid crystal display device of the present utility model can watch stereoeffect from level or vertical direction, and these two kinds of directions all can not produce the colour cast phenomenon by switching the show state of this liquid crystal grating.
Description of drawings
Fig. 1 is the cross-sectional view of the utility model plane/stereo switchable liquid crystal display device one better embodiment.
Fig. 2 is the floor map of first transparent electrode layer in the liquid crystal grating shown in Figure 1.
Fig. 3 is the floor map of second transparent electrode layer in the liquid crystal grating shown in Figure 1.
Fig. 4 is the lattice of liquid crystal grating shown in Figure 1.
Fig. 5 is the enlarged diagram of dotted portion shown in Figure 4.
Fig. 6 is the transverse electrode wiring synoptic diagram of liquid crystal grating shown in Figure 1.
Fig. 7 is the vertical electrode wiring synoptic diagram of liquid crystal grating shown in Figure 1.
Fig. 8 is a kind of show state synoptic diagram of liquid crystal grating shown in Figure 4.
Fig. 9 is the viewing area synoptic diagram of the show state correspondence of liquid crystal grating shown in Figure 8.
Figure 10 is the another kind of show state synoptic diagram of liquid crystal grating shown in Figure 4.
Figure 11 is the viewing area synoptic diagram of the show state correspondence of liquid crystal grating shown in Figure 10.
Embodiment
Below in conjunction with accompanying drawing the utility model is described.
See also Fig. 1, Fig. 1 is the cross-sectional view of the utility model plane/stereo switchable liquid crystal display device, and this plane/stereo switchable liquid crystal display device 100 comprises module 1 backlight, liquid crystal display module (LCD) 2 and liquid crystal grating 3.
This module 1 backlight is arranged on this liquid crystal display module 2 rears, and it mainly acts on is to provide the even brightness collimated light for this liquid crystal display module 2.This module 1 backlight can comprise one or more pointolite, and for example light emitting diode (LED) also can comprise one or more line source, for example cold cathode fluorescent lamp (CCFL), or the planar light emitting of other form.
This liquid crystal display module 2 is arranged on this module backlight 1 the place ahead, and it provides the required content of stereos copic viewing to show.
This liquid crystal grating 3 is arranged between this liquid crystal display module 2 and the beholder, it mainly acts on is that the light that sends from this liquid crystal display module 2 is modulated to allow the beholder obtain stereoscopic vision, and this moment, this plane/stereo switchable liquid crystal display device 100 carried out stereo display.This liquid crystal grating 3 can not modulated the light that sends from this liquid crystal display module 2 yet, and this moment, this plane/stereo switchable liquid crystal display device 100 carried out the plane demonstration.
This liquid crystal grating 3 comprises first glass substrate 10, first transparent electrode layer 20, first alignment film 30, second alignment film 40, second transparent electrode layer 50, second glass substrate 60, polaroid 70, liquid crystal layer 80 and frame 90.
This first transparent electrode layer 20 is formed on this first glass substrate, 10 contiguous these second glass substrate, 60 1 side surfaces, and this first alignment film 30 is formed on this first transparent electrode layer 20.This second transparent electrode layer 50 is formed on this second glass substrate, 60 contiguous these first glass substrate, 20 1 side surfaces, and this second alignment film 40 is formed on this second transparent electrode layer 50.This frame 90 and surrounds an enclosure space with this first alignment film 30 and this second alignment film 40 between this first transparent electrode layer 20 and this second transparent electrode layer 50, these liquid crystal layer 80 sealings are contained in this enclosure space.
See also Fig. 2, Fig. 2 is the floor map of this first transparent electrode layer 20.This first transparent electrode layer 20 comprises a plurality of first transverse electrode bars 202 and a plurality of second transverse electrode bar 204, and these first transverse electrode bar 202 and these second transverse electrode bar, 204 interlaced arrangements.That is to say that folder is established to press from both sides between these second transverse electrode bar, 204, adjacent two these second transverse electrode bars 204 and established this first transverse electrode bar 202 between adjacent two these first transverse electrode bars 202.This first transverse electrode bar 202 is arranged on this second transverse electrode bar, 204 outermost, and this second transverse electrode bar 204 is arranged on this first transverse electrode bar, 202 inboards, is provided with the gap between this second transverse electrode bar 204 and this first transverse electrode bar 202.
See also Fig. 3, Fig. 3 is the floor map of this second transparent electrode layer 50.This second transparent electrode layer 50 comprises a plurality of first vertical electrode strip 502 and a plurality of second vertical electrode strip 504, and these first vertical electrode strip 502 and these second vertical electrode strip 504 interlaced arrangements.That is to say that folder is established this second vertical electrode strip 504 between adjacent two these first vertical electrode strips 502, folder is established this first vertical electrode strip 502 between adjacent two these second vertical electrode strips 504.This first vertical electrode strip 502 is arranged on this second vertical electrode strip 504 outermost, and this second vertical electrode strip 504 is positioned at this first vertical electrode strip, 502 inboards.
See also Fig. 4 and Fig. 5, Fig. 4 is the RGB vitta direction of this liquid crystal display module 2 when vertical, and the lattice of this liquid crystal grating 3, Fig. 5 are the enlarged diagram of dotted portion among Fig. 4.This first transparent electrode layer 20 and this second transparent electrode layer 50 are between the upper and lower every the formation lattice is set.This first transverse electrode bar 202 is parallel with the RGB vitta direction of this liquid crystal display module 2 with this second transverse electrode bar 204, and the lattice that forms has two kinds of different Cycle Length a, b in the horizontal direction, and wherein a is greater than b.This first vertical electrode strip 502 becomes a suitable angle of inclination with this second vertical electrode strip 504 with the RGB vitta direction of this liquid crystal display module 2, this angle of inclination is less than 90 °, and this first vertical electrode strip 502 has two kinds of different Cycle Length c, d with these second vertical electrode strip 504 in the vertical directions, and wherein c is greater than d.When the RGB of this liquid crystal display module 2 vitta direction level, 90 ° of lattice corresponding rotation shown in Figure 4.
See also Fig. 6, this liquid crystal grating 3 further comprises the first transverse electrode lead 202a and the second transverse electrode lead 204a.This first transverse electrode bar 202 that this first transverse electrode lead 202a will be positioned at these first transparent electrode layer, 20 outsides is connected in parallel, and this second transverse electrode bar 204 that this second transverse electrode lead 204a will be positioned at these first transparent electrode layer, 20 inboards is connected in parallel.
See also Fig. 7, this liquid crystal grating 3 further comprises the first vertical electrode cable 502a and the second vertical electrode cable 504a.This first vertical electrode strip 502 that this first vertical electrode cable 502a will be positioned at these second transparent electrode layer, 50 outsides is connected in parallel, and this second vertical electrode strip 504 that this second vertical electrode cable 504a will be positioned at these second transparent electrode layer, 50 inboards is connected in parallel.
When the RGB of this liquid crystal display module 2 vitta direction is vertical, when this first transverse electrode bar 202, this second transverse electrode bar 204 and this first vertical electrode strip 502 are applied driving voltage, the show state of this liquid crystal grating 3 as shown in Figure 8, this moment human eye the viewing area as shown in Figure 9.Among Fig. 9, be viewing areas in the zone between the dotted line, the zone between the solid line is the viewing areas after viewing distance changes.
When the upset of the RGB of this liquid crystal indicator vitta direction is level, when this first vertical electrode strip 502, this second vertical electrode strip 504 and this first transverse electrode bar 202 are applied driving voltage, the show state of this liquid crystal grating 3 as shown in figure 10, this moment human eye the viewing area as shown in figure 11.Among Figure 11, be viewing areas in the zone between the dotted line.
From Fig. 9 and Figure 11 as can be seen, no matter be to watch from horizontal direction, still watch from vertical direction, this plane/stereo switchable liquid crystal display device 100 can not produce the colour cast phenomenon.
When the direction of observation of human eye is parallel to the RGB vitta direction of this liquid crystal display module 2, can observe two different images by this liquid crystal display module 2, to realize stereo display; This liquid crystal display module 2 revolved turn 90 degrees, the direction of observation that makes human eye is during perpendicular to the RGB vitta direction of this liquid crystal display module 2, human eye can from this liquid crystal display module 2 observe be different from before the image of position, to realize stereo display.Since can make human eye along parallel, form parallaxes perpendicular to two different directions of the RGB vitta direction of this liquid crystal display module 2, observe stereo-picture so can realize human eye from both direction.
During these plane/stereo switchable liquid crystal display device 100 work, when needs carry out stereo display, this first transparent electrode layer 20 and this second transparent electrode layer 50 are applied high low pulse voltage, light appears by this liquid crystal grating 3, forms stereoscopic parallax.When only needing to carry out the plane demonstration, cancellation is to the pulse voltage of this first transparent electrode layer 20 and second transparent electrode layer 50, then this liquid crystal grating 3 presents pellucidity, this liquid crystal display module 2 can not form stereoscopic parallax, and this moment, this plane/stereo switchable liquid crystal display device 100 promptly can present the plane demonstration.
This plane/stereo switchable liquid crystal display device 100 of the present utility model can watch stereoeffect from level or vertical direction, and these two kinds of directions all can not produce the colour cast phenomenon by switching the show state of this liquid crystal grating 3.
Only be preferred case study on implementation of the present utility model below, be not limited to the utility model, for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. liquid crystal grating, switch in order to the liquid crystal display module is carried out plane/stereo, it is characterized in that: this liquid crystal grating comprises first transparent electrode layer and second transparent electrode layer that relative spacing is provided with, this first transparent electrode layer comprises a plurality of transverse electrode bars, this second hyaline layer comprises a plurality of vertical electrode strips, this transverse electrode bar is provided with this vertical electrode strip space and forms a plurality of grating grids, and the relative vertical direction of this vertical electrode strip is obliquely installed, and its angle of inclination is less than 90 °.
2. liquid crystal grating according to claim 1 is characterized in that: this first transparent electrode layer comprises a plurality of first transverse electrode bars and a plurality of second transverse electrode bar, this first transverse electrode bar and interlaced being spaced of this second transverse electrode bar.
3. liquid crystal grating according to claim 2 is characterized in that: this second transparent electrode layer comprises a plurality of first vertical electrode strip and a plurality of second vertical electrode strip, and this first vertical electrode strip and this second be vertical, and electrode strip is interlaced is spaced.
4. liquid crystal grating according to claim 1 is characterized in that: this grating grid comprises first length and second length along first direction, and this first length and this second length are different, and adjacent one-tenth periodic arrangement.
5. liquid crystal grating according to claim 4 is characterized in that: this first direction is parallel to the bearing of trend of this transverse electrode bar.
6. liquid crystal grating according to claim 4 is characterized in that: this grating grid comprises the 3rd length and the 4th length along second direction, and the 3rd length and the 4th length are different, and adjacent one-tenth periodic arrangement.
7. liquid crystal grating according to claim 6 is characterized in that: this second direction is perpendicular to this first direction.
8. plane/stereo switchable liquid crystal display device, the liquid crystal grating that it comprises the liquid crystal display module and is arranged on this liquid crystal display module the place ahead is characterized in that: this liquid crystal grating is any described liquid crystal grating in the claim 1 to 7.
9. plane/stereo switchable liquid crystal display device according to claim 8, it is characterized in that: this liquid crystal display module comprises a plurality of RGB vittas, this transverse electrode bar is perpendicular to this RGB vitta, and this vertical electrode strip this RGB vitta relatively is obliquely installed, and its angle of inclination is less than 90 °.
10. plane/stereo switchable liquid crystal display device according to claim 8 is characterized in that: this plane/stereo switchable liquid crystal display device further comprises module backlight, and this module backlight is arranged on the rear of this liquid crystal display module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020503901XU CN201897675U (en) | 2010-08-25 | 2010-08-25 | Liquid crystal grating and planar/stereoscopic switchable liquid-crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201020503901XU CN201897675U (en) | 2010-08-25 | 2010-08-25 | Liquid crystal grating and planar/stereoscopic switchable liquid-crystal display device |
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| CN201897675U true CN201897675U (en) | 2011-07-13 |
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| CN201020503901XU Expired - Lifetime CN201897675U (en) | 2010-08-25 | 2010-08-25 | Liquid crystal grating and planar/stereoscopic switchable liquid-crystal display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650742A (en) * | 2012-05-16 | 2012-08-29 | 天马微电子股份有限公司 | Free three-dimensional display device and method |
| CN102890372A (en) * | 2012-09-29 | 2013-01-23 | 京东方科技集团股份有限公司 | Liquid crystal grating, preparation method thereof and 3D display device |
| CN103838030A (en) * | 2014-03-28 | 2014-06-04 | 信利半导体有限公司 | Bidirectional three-dimensional display device |
| CN106405852A (en) * | 2016-11-22 | 2017-02-15 | 宁波视睿迪光电有限公司 | Naked eye 3D display device and control method |
-
2010
- 2010-08-25 CN CN201020503901XU patent/CN201897675U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650742A (en) * | 2012-05-16 | 2012-08-29 | 天马微电子股份有限公司 | Free three-dimensional display device and method |
| CN102890372A (en) * | 2012-09-29 | 2013-01-23 | 京东方科技集团股份有限公司 | Liquid crystal grating, preparation method thereof and 3D display device |
| CN102890372B (en) * | 2012-09-29 | 2015-05-20 | 京东方科技集团股份有限公司 | Liquid crystal grating, preparation method thereof and 3D display device |
| CN103838030A (en) * | 2014-03-28 | 2014-06-04 | 信利半导体有限公司 | Bidirectional three-dimensional display device |
| WO2015143791A1 (en) * | 2014-03-28 | 2015-10-01 | 信利半导体有限公司 | Bidirectional stereoscopic display apparatus |
| CN106405852A (en) * | 2016-11-22 | 2017-02-15 | 宁波视睿迪光电有限公司 | Naked eye 3D display device and control method |
| CN108594447A (en) * | 2016-11-22 | 2018-09-28 | 宁波视睿迪光电有限公司 | Bore hole 3D display device and control method |
| CN106405852B (en) * | 2016-11-22 | 2018-11-13 | 宁波视睿迪光电有限公司 | Bore hole 3D display device and control method |
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Granted publication date: 20110713 |
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