CN102929048A - Liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension) - Google Patents
Liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension) Download PDFInfo
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- CN102929048A CN102929048A CN2012104568607A CN201210456860A CN102929048A CN 102929048 A CN102929048 A CN 102929048A CN 2012104568607 A CN2012104568607 A CN 2012104568607A CN 201210456860 A CN201210456860 A CN 201210456860A CN 102929048 A CN102929048 A CN 102929048A
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Abstract
The invention provides a liquid crystal slit grating capable of being compatible with 2D (2 Dimension) and 3D (3 Dimension). The liquid crystal slit grating comprises a first glass substrate, a second glass substrate, an upper polarizer, a lower polarizer, a first electrode, a second electrode and a liquid crystal material, wherein the upper polarizer and the lower polarizer are attached onto the outer surfaces of the first glass substrate and the second glass substrate; the first electrode is arranged on the inner surface of the first glass substrate; the second electrode is arranged on the inner surface of the second glass substrate; and the liquid crystal material is positioned in the center of the liquid crystal slit grating; the second electrode is a whole-surface conductive transparent material; the first electrode is divided into a plurality of bar electrodes; the bar electrodes are divided into a plurality of units; the units are independent from one another; and all the electrodes in each unit are connected together. The liquid crystal slit grating has the advantages as follows: 2D and 3D images can be presented at the same time, that is to way, the function of displaying the 3D images in one part of regions and the 2D images in other parts of regions is achieved by dividing the first glass substrate into a plurality of regions, enabling the regions not to be electrically conducted, and controlling one or more of the regions respectively.
Description
Technical field
The present invention relates to stereo display technique, specifically a kind of liquid crystal slit grating.
Background technology
Free 3 D display technology phase colorimetric based on parallax is divided, light divides with the time wear-type 3-D display of grading, because in the constraint of objectively having broken away from the auxiliary devices such as anaglyph spectacles, improved the comfort level of watching and widened application and be subject to extensive concern.Disparity barrier (parallax barrier) technology is a kind of as free 3 D display technology, for ease of realizing the compatibility of 2D and 3D, no matter is preposition barrier or rearmounted barrier, and liquid crystal slit grating all is widely used.
At present, the bore hole 3D display technique of liquid crystal slit grating collocation 2D display screen has realized not applying the compatibility of 2D and 3D voltage on the liquid crystal slit grating when 2D shows and possess high permeability, does not substantially affect the characteristics such as 2D brightness of display screen resolution; 3D applies voltage at liquid crystal slit grating when showing and forms chequered with black and white striped, thereby makes people's right and left eyes watch the image that possesses certain parallax; But present display mode is comparatively single, namely can only realize that 3D shows, can not show the 2D picture at regional area by full screen when liquid crystal slit grating applies voltage; When liquid crystal slit grating applies voltage, not watching the 2D picture by full screen, can not show at local implementation 3D.
Existing liquid crystal slit grating is shown in Fig. 1 a and Fig. 1 b, 100 ', 200 ' represents respectively first, second glass substrate of liquid crystal slit grating, the ITO electrode of 101 ' expression liquid crystal slit grating, the peripheral electrode of 102 ' expression liquid crystal slit grating, 103 ' locates the electrode without ITO, and the surface of the second glass substrate 200 ' is whole ITO, as the usefulness of common electrode.
Shown in Fig. 2 a and Fig. 2 b, Fig. 2 a is the situation after first, second glass substrate 100 ', 200 ' group is stood on the liquid crystal slit grating; Fig. 2 b be under the 3D display mode after electrode applies voltage, by being attached to the chequered with black and white striped (polaroid does not draw about among the figure) that the mutually perpendicular up and down polaroid of first, second glass substrate 100 ', 200 ' outside surface and polarization direction forms on the liquid crystal slit grating.Therefore, when applying voltage on the liquid crystal slit grating electrode, whole screen presents the 3D display effect; When not applying voltage on the liquid crystal slit grating electrode, whole screen presents the 2D display effect, can not accomplish all in two kinds of situations that 2D and 3D show simultaneously in same screen zones of different.
Fig. 3 is slit grating free stereo displaying principle, by at the 2D display panel (such as LCD, PDP, LED etc.) preposition (perhaps rearmounted) slit grating, left eye can only be seen the image that left eye is corresponding, right eye then can only be seen the image that right eye is corresponding, owing to right and left eyes is watched simultaneously the image with certain parallax and produced 3D effect.If employing liquid crystal slit grating, when electrode applies voltage, form chequered with black and white striped and can watch the 3D image, and liquid crystal slit grating can not produce blackstreak when not applying voltage, therefore still watch the 2D display effect, there is no obvious impact at aspects such as resolution and brightness, namely can realize the compatibility of 2D and 3D display mode by liquid crystal slit grating.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of 2D and 3D while subregion on same screen of can realizing and shows that namely the subregion of screen shows the 2D picture, and other zones show liquid crystal slit gratings of 3D pictures.
The present invention solves the problems of the technologies described above by the following technical solutions: the liquid crystal slit grating of compatible 2D of a kind of while and 3D, comprise first, the second glass substrate, be attached to first, the up and down polaroid of the second glass substrate outside surface, the second electrode that is arranged on the first electrode of the first glass substrate inside surface and is arranged on the second glass substrate inside surface, also comprise the liquid crystal material that is positioned at the liquid crystal slit grating center, improvement is: the second electrode is whole conductive transparent material, the first electrode is divided into some strip electrodes, and some strip electrodes are divided into several unit, unit is separate, and all electrodes within each unit link together.
Further, the strip electrode on the first glass substrate is divided into the identical or different unit of several sizes, forms the matrix structure of the capable x N row of M.
This liquid crystal slit grating realizes that the control method of compatible 2D of while and 3D is: establishing the second glass substrate is a certain reference voltage, needs at the first glass substrate show that all electrodes of the unit of 3D apply another voltage and form certain pressure reduction, realize in this unit that namely 3D shows; Meanwhile, when the voltage that the electrode in other unit applies equaled reference voltage, other unit still presented 2D and show, so 2D and 3D just are presented on the zones of different of same screen simultaneously owing to there is not pressure reduction.
Strip electrode in the such scheme on the first glass substrate is that horizontal direction parallel is arranged or vertical direction is arranged in parallel.
Perhaps for crosstalk reduction and balance aberration etc., also can be with the strip electrode on the first glass substrate according to the certain angle slant setting.
The invention has the advantages that: present when realizing 2D and 3D: by the first glass substrate is divided into several zones, each other electrically not conducting, can control respectively wherein somely or some is regional, realize that the subregion shows the 3D picture, the subregion shows the function of 2D picture.
Description of drawings
Fig. 1 a and Fig. 1 b are respectively first and second glass basal plate structure figure of available liquid crystal slit grating.
Fig. 2 a is the synoptic diagram after existing first and second glass substrate group is stood.
Fig. 2 b is that Fig. 2 a presents chequered with black and white striped synoptic diagram under the 3d display mode.
Fig. 3 is slit grating free stereo displaying principle figure.
Fig. 4 a and Fig. 4 b are respectively first and second glass basal plate structure figure of liquid crystal slit grating of the present invention.
Fig. 5 is vertical direction liquid crystal slit grating regional area 3D display effect figure.
Fig. 6 is that synoptic diagram is chosen in particular cases driving.
Fig. 7 is the horizontal direction liquid crystal slit grating that compatible 2D of energy while and 3D show.
Fig. 8 is horizontal direction liquid crystal slit grating regional area 3D display effect figure.
Embodiment
1). the vertical direction liquid crystal slit grating of simultaneously compatible 2D and 3D demonstration: shown in Fig. 4 a and Fig. 4 b, be the present invention's part-structure synoptic diagram of compatible 2D and the vertical direction liquid crystal slit grating of 3D demonstration simultaneously, wherein 100 is the second glass substrate of liquid crystal slit grating, and 200 is the first glass substrate of liquid crystal slit grating.Wherein, 101 for being deposited on whole electro-conductive glass ITO(indium tin oxide on the second glass substrate 100) or the IZO(indium-zinc oxide) etc., 201 for being produced on the strip electrode (ITO, IZO etc.) on the first glass substrate 200 surfaces, and 202 zones are non-electrode district.Among Fig. 4 b, the strip electrode 201 on the first glass substrate 200 is divided into 6 zones, is respectively A, B, and C, D, E, F, regional is separate, but all electrodes link together within each zone.
Fig. 5 has represented the situation that vertical direction liquid crystal slit grating 2D and 3D show simultaneously visually, because regional is separate, voltage can separately be controlled.Suppose that the second glass substrate 100 is a certain reference voltage, after all electrodes of the regional A of the first glass substrate 200 apply another voltage and form certain pressure reduction, namely can chequered with black and white striped occur at regional A and (zone of electrode be arranged for black, electrodeless zone is white), so can realize that 3D shows at regional A; Meanwhile, when the voltage that applies in other area electrodes equaled reference voltage, other zones chequered with black and white striped can not occur owing to there is not pressure reduction, still presented 2D and showed, so 2D and 3D just are presented on the zones of different of same screen simultaneously.
At some in particular cases, need to realize that the zone that local 3D shows may be inconsistent with the isolated area that arranges.As shown in Figure 6, suppose to realize that for certain sub-picture the zone that 3D shows covers A and B zone fully, need to apply in A, B zone then that a certain voltage forms first, second glass substrate 200,100 pressure reduction just can be realized.Suppose in certain situation, need the zone of 3D demonstration shown in P1 among Fig. 6, covered most of zone of A and B, can apply in A, B zone still then that a certain voltage forms first, second glass substrate 200,100 pressure reduction is realized, can sacrifice the zone that small part 2D shows this moment, because the area sum in A and B zone is greater than the area of P1, the zone that the P1 periphery on a small quantity should 2D shows has been shown by 3D.In contrast, suppose in certain situation, need the zone of 3D demonstration shown in P2 among Fig. 6, most of zone and the few part B zone of A have been covered, can only apply in the a-quadrant then that a certain voltage forms first, second glass substrate 200,100 pressure reduction is realized, can lose the information that small part 3D shows this moment, because the area of a-quadrant is less than the area of P2, the image of the former 3D that should show in few part B zone but present the 2D demonstration.Certainly, if the zone that slit grating is divided into is more, the unit of independent control is also just more, thisly in particular cases sacrifices a small amount of 3D or 2D shows that the situation of information will be fewer.
2). the horizontal direction liquid crystal slit grating of simultaneously compatible 2D and 3D demonstration: as shown in Figure 7,200 is the first glass substrate of liquid crystal slit grating.The first glass substrate 200 is divided into 12 zones, is respectively A, B, and C, D ..., K, L.Regional is separate, but all electrodes link together within each zone.
The expression of Fig. 8 image horizontal direction liquid crystal slit grating 2D and 3D situation about showing simultaneously because regional is separate, voltage can separately be controlled.Suppose that the second glass substrate 100 is a certain reference voltage, after all electrodes of the regional D of the first glass substrate 200 apply another voltage and form certain pressure reduction, namely can chequered with black and white striped occur at regional D and (zone of electrode be arranged for black, electrodeless zone is white), so can realize that 3D shows at regional D; Meanwhile, when the voltage that applies in other area electrodes equaled reference voltage, other zones chequered with black and white striped can not occur owing to there is not pressure reduction, still presented 2D and showed, so 2D and 3D just are presented on the zones of different of same screen simultaneously.Accept or reject for type of drive in particular cases, can realize with reference to Fig. 6.
3). except above-mentioned realization horizontal and vertical direction 2D and 3D show simultaneously, be crosstalk reduction and balance aberration etc., also can be with electrode according to the certain angle slant setting.
In fact, the strip electrode 201 on the first glass substrate 200 can be divided into the identical or different unit of several sizes, forms the matrix structure of the capable x N row of M.For amounting to M x N independently matrix, can be as required therein any a plurality of zone realize that 2D and 3D show simultaneously.
The above is only for the preferred embodiment of the invention; not in order to limit the invention; all in the invention spirit and principle within do any modification, be equal to and replace and improvement etc., all should be included within the protection domain of the invention.
Claims (6)
1. the liquid crystal slit grating of a compatible 2D of while and 3D, comprise first, the second glass substrate, be attached to first, the up and down polaroid of the second glass substrate outside surface, the second electrode that is arranged on the first electrode of the first glass substrate inside surface and is arranged on the second glass substrate inside surface, also comprise the liquid crystal material that is positioned at the liquid crystal slit grating center, it is characterized in that: the second electrode is whole conductive transparent material, the first electrode is divided into some strip electrodes, and some strip electrodes are divided into several unit, unit is separate, and all electrodes within each unit link together.
2. the liquid crystal slit grating of compatible 2D of while as claimed in claim 1 and 3D, it is characterized in that: the strip electrode on the first glass substrate is divided into the identical or different unit of several sizes, forms the matrix structure that the capable x N of M is listed as.
3. the liquid crystal slit grating of compatible 2D of while as claimed in claim 1 or 2 and 3D, it is characterized in that: the strip electrode on the first glass substrate is the horizontal direction parallel arrangement.
4. the liquid crystal slit grating of compatible 2D of while as claimed in claim 1 or 2 and 3D, it is characterized in that: the strip electrode on the first glass substrate is that vertical direction is arranged in parallel.
5. the liquid crystal slit grating of compatible 2D of while as claimed in claim 1 or 2 and 3D, it is characterized in that: the strip electrode on the first glass substrate is according to the certain angle slant setting.
6. the liquid crystal slit grating of compatible 2D of while as claimed in claim 1 and 3D, it is characterized in that: this liquid crystal slit grating realizes that the control method of compatible 2D of while and 3D is: establishing the second glass substrate is a certain reference voltage, needs at the first glass substrate show that all electrodes of the unit of 3D apply another voltage and form certain pressure reduction, realize in this unit that namely 3D shows; Meanwhile, when the voltage that the electrode in other unit applies equaled reference voltage, other unit still presented 2D and show owing to there is not pressure reduction.
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Cited By (10)
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| WO2016008173A1 (en) * | 2014-07-15 | 2016-01-21 | 深圳市亿思达科技集团有限公司 | 2d/3d combined display device and advertising device |
| CN105301784A (en) * | 2014-06-02 | 2016-02-03 | 株式会社日本显示器 | Stereoscopic image display device |
| CN105334676A (en) * | 2014-07-11 | 2016-02-17 | 深圳市亿思达科技集团有限公司 | Liquid crystal grating, stereo display device and drive method of stereo display device |
| CN106292087A (en) * | 2016-09-07 | 2017-01-04 | 万维云视（上海）数码科技有限公司 | A kind of liquid crystal grating, display device and driving method |
| CN107153306A (en) * | 2016-12-30 | 2017-09-12 | 深圳超多维光电子有限公司 | Liquid crystal slit grating, 3 d display device and intelligent terminal |
| CN107272273A (en) * | 2016-12-30 | 2017-10-20 | 深圳超多维科技有限公司 | Liquid crystal slit grating, 3 d display device and intelligent terminal |
| CN107357077A (en) * | 2017-08-21 | 2017-11-17 | 京东方科技集团股份有限公司 | Grating assembly, display device and its control method, storage medium |
| CN112817163A (en) * | 2021-02-23 | 2021-05-18 | 腾讯科技（深圳）有限公司 | Image display method, display device, and storage medium |
| CN113347486A (en) * | 2021-08-05 | 2021-09-03 | 深圳佳力拓科技有限公司 | Digital television combined with polarized glasses and use method |
| WO2023206091A1 (en) * | 2022-04-26 | 2023-11-02 | 京东方科技集团股份有限公司 | Liquid crystal grating and driving method therefor and 3d display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107357077A (en) * | 2017-08-21 | 2017-11-17 | 京东方科技集团股份有限公司 | Grating assembly, display device and its control method, storage medium |
| CN107357077B (en) * | 2017-08-21 | 2020-03-13 | 京东方科技集团股份有限公司 | Grating assembly, display device, control method and storage medium |
| CN112817163A (en) * | 2021-02-23 | 2021-05-18 | 腾讯科技（深圳）有限公司 | Image display method, display device, and storage medium |
| CN113347486A (en) * | 2021-08-05 | 2021-09-03 | 深圳佳力拓科技有限公司 | Digital television combined with polarized glasses and use method |
| WO2023206091A1 (en) * | 2022-04-26 | 2023-11-02 | 京东方科技集团股份有限公司 | Liquid crystal grating and driving method therefor and 3d display device |
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