CN103293819A - Electrically-controlled liquid crystal lens and three-dimensional stereoscopic display device thereof - Google Patents
Electrically-controlled liquid crystal lens and three-dimensional stereoscopic display device thereof Download PDFInfo
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- CN103293819A CN103293819A CN 201310168632 CN201310168632A CN103293819A CN 103293819 A CN103293819 A CN 103293819A CN 201310168632 CN201310168632 CN 201310168632 CN 201310168632 A CN201310168632 A CN 201310168632A CN 103293819 A CN103293819 A CN 103293819A
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Abstract
The invention provides an electrically-controlled liquid crystal lens and a three-dimensional stereoscopic display device thereof. The electrically-controlled liquid crystal lens comprises an upper polar plate, a lower polar plate and a liquid material layer arranged between the upper and lower polar plates. The upper and lower polar plates are made of conductive materials, and the upper polar plate comprises one central electrode and two side electrodes. The central electrode is arranged at the center of the upper polar plate, the two side electrodes are respectively arranged on the upper polar plate and at two opposite side positions of two sides of the central electrode. The electrically-controlled liquid crystal lens has the advantages that horizontally distributed gradient fields formed in the liquid crystal material layer can realize effect of lens by the aid of an self-resistance function of the upper polar plate, a small line width electrode structure is not required, and the scheme of the electrically-controlled liquid crystal is easy to realize.
Description
Technical field
The present invention relates to the liquid crystal technology field, relate in particular to a kind of electrically-controlled liquid crystal lens and three-dimensional stereo display device thereof.
Background technology
Along with the development of display technique, the 3D stereo display technique has had considerable progress, and the ripe 3D stereo display technique of using mainly comprises spectacle, wear-type and bore hole formula at present.The principle of spectacle technology is to use the polarization light display image of space segmentation to cooperate the polaroid glasses or thereby the demonstration image of the quick switching cut apart service time cooperates the liquid crystal shutter glasses to make observer's left and right sides eyes obtain different images to produce stereoscopic sensation; Thereby wear-type is directly to use two display units to provide different images to produce stereoscopic sensation for observer's left and right sides eyes; The principle of bore hole formula technology is had living space and is cut apart and the time is cut apart demonstration, wherein the technology cut apart of time is to show different images at a high speed, thereby simultaneously different beam directions provides different images to produce stereoscopic sensation for observer's right and left eyes, and the technology of space segmentation is to show two different images at same screen, utilize the method for grating or lens simultaneously, thereby make observer's right and left eyes observe two different images and produce stereoscopic sensation, this also is present topmost bore hole 3D stereo display mode.
The principle of raster pattern bore hole 3D stereo display technique is to utilize to be placed on a grating that shows the preceding appropriate location of image, when the observer also is in correct position, can make observer's left eye and right eye can only observe a part that shows in the image respectively, when the observed part of energy was placed suitable image respectively at these right and left eyes, the observer namely can be observed stereo-picture.Raster pattern bore hole stereo display technique occurs early, thereby and can make same display can show that the 2D image can show 3D rendering again owing to adopt liquid crystal to make automatically controlled grating easily, use comparatively extensive.
See also Fig. 1, it is the structural representation of a kind of liquid crystal lens of prior art.This liquid crystal lens comprises: two electrode structure that is oppositely arranged first electrode structures 12, second electrode structure 16, and each electrode structure comprises two electrode groups respectively, belongs to mutually insulated between two electrode groups of same electrode structure; Liquid crystal layer 14 is arranged between described two electrode structures, and comprises a plurality of liquid crystal molecules of arranging along the initial arrangement direction; Wherein, belong between two electrode groups of same electrode structure and produce electric field, described electric field is used for changing the orientation of described liquid crystal molecule.Wherein one group of electrode group in two electrode groups of an electrode structure applies for example V1 of a voltage, and another group electrode group applies for example Vref of no-voltage or reference voltage.Like this, form a voltage difference between above-mentioned two electrode groups, and then produce electric field.Liquid crystal molecule orientation under electric field action in the liquid crystal layer changes, according to the arrange situation of liquid crystal molecule in liquid crystal layer, the deflection angle difference of the liquid crystal molecule of zones of different, make the refractive index of liquid crystal molecule present parabola shaped variation, and then the formation lens, reach and make liquid crystal layer have the effect of lens.
Because automatically controlled lens are corresponding to the single pixel cell on the LCD, therefore the size of automatically controlled lens is all very little.And the automatically controlled lens shown in the accompanying drawing 1 are in order to obtain lens effect preferably in liquid crystal layer, need adjacent first electrode structure 12 and second electrode structure 16 of the many groups of preparation, the size of each electrode can be littler like this, and this has greatly improved the difficulty of manufacture craft undoubtedly.In fact, being similar to the structure that a plurality of electrod-arrays of this dependence shown in the accompanying drawing 1 are realized lens effect, being subjected to technology in actual applications to the restriction of minimum feature, therefore is to be difficult to realize.
Summary of the invention
The object of the present invention is to provide a kind of electrically-controlled liquid crystal lens and three-dimensional stereo display device thereof, can need not to make the electrode structure of little live width, scheme is easy to realize.
For realizing above-mentioned purpose, the invention provides a kind of electrically-controlled liquid crystal lens, comprise the liquid crystal material layer between top crown, bottom crown and the upper and lower pole plate, described top crown and bottom crown are made by conductive material, described top crown comprises a central electrode and two lateral electrodes, described central electrode is arranged on the center of top crown, and described two lateral electrodes are separately positioned on the top crown, and in two relative lateral location of described central electrode both sides; Described liquid crystal lens in working order down, described two lateral electrodes have first electric potential difference that equates separately with between the central electrode, and have one second electric potential difference between described central electrode and the bottom crown, thereby in liquid crystal material layer, form from the central electrode position to lateral electrode position continually varying electric field.
Optionally, described top crown is shaped as trapezoidal or wedge shape.
Optionally, described top crown is symmetrical in the shape of central electrode both sides.
Optionally, the material of described top crown and bottom crown is indium tin oxide.
The present invention further provides a kind of three-dimensional stereo display device, the electrically-controlled liquid crystal lens arra that comprises liquid crystal panel and be arranged at described liquid crystal panel surface, each lens is corresponding to the pixel on the liquid crystal panel, and described liquid crystal lens is above-mentioned electrically-controlled liquid crystal lens.
Optionally, described electrically-controlled liquid crystal lens arra comprises central electrode and a lateral electrode that connects, and the central electrode of described perforation and lateral electrode run through the adjacent lcd lens that are in same row.
Optionally, described electrically-controlled liquid crystal lens arra has the bottom crown of perforation.
The invention has the advantages that, utilize the effect of top crown self-resistance, the gradual change electric field that forms cross direction profiles in liquid crystal material layer is realized the effect of lens need not to make the electrode structure of little live width, and scheme is easy to realize.
Description of drawings
Accompanying drawing 1 is the structural representation of the liquid crystal lens of prior art.
It is the structural representation of electrically-controlled liquid crystal lens embodiment of the present invention shown in the accompanying drawing 2.
Accompanying drawing 3A is the view when the electrically-controlled liquid crystal lens do not power up shown in the accompanying drawing 2.
Accompanying drawing 3B is the view of electrically-controlled liquid crystal lens shown in the accompanying drawing 2 when powering up.
Accompanying drawing 4 is the partial top view for the electrically-controlled liquid crystal lens arra of liquid crystal panel.
Embodiment
Elaborate below in conjunction with the embodiment of accompanying drawing to electrically-controlled liquid crystal lens of the present invention and three-dimensional stereo display device thereof.
It is the structural representation of electrically-controlled liquid crystal lens embodiment of the present invention shown in the accompanying drawing 2, comprise: the liquid crystal material layer 716 between top crown 715, bottom crown 717 and top crown 715 and the bottom crown 717, described top crown 715 and bottom crown 717 are made by conductive material, for example indium tin oxide (ITO).Described top crown 715 comprises a central electrode 712 and two lateral electrodes 714 and 710, described central electrode 712 is arranged on the center of top crown 715, described two lateral electrodes 714 and 710 are separately positioned on the top crown 715, and in two relative lateral location of described central electrode 712 both sides.Described central electrode 712 and two lateral electrodes 714 and 710 material for example can be copper or aluminium.Described central electrode 712 and two lateral electrodes 714 and 710 are divided into two parts symmetrical 713 and 711 with top crown 715.
Accompanying drawing 3A is the view of above-mentioned electrically-controlled liquid crystal lens when not powering up.Under this state, the liquid crystal molecule of the liquid crystal layer in this liquid crystal lens is rendered as consistent refractive index, so this liquid crystal lens does not form the effect of lens to light.First power supply 701 for described two lateral electrodes 714 and 710 and central electrode 712 between first electric potential difference that applies be 0, and also be 0 by second electric potential difference that second source 709 applies between described central electrode 712 and bottom crown 717, with this understanding, liquid-crystal refractive-index in the liquid crystal layer 716 is consistent, and these lens can not play the effect of any lens to the emergent light 724 of light source 721.
Accompanying drawing 3B is the view of above-mentioned electrically-controlled liquid crystal lens when powering up.Described liquid crystal lens in working order at this moment, can by first power supply 701 for described two lateral electrodes 714 and 710 and central electrode 712 between apply one first electric potential difference V1, and between described central electrode 712 and bottom crown 717, apply one second electric potential difference V2 by second source 709.Under this state, have constant electric potential difference V2 between bottom crown 717 and the central electrode 712, and have constant electric potential difference (V1+V2) between bottom crown 717 and lateral electrode 714 and 710.And because the electricresistance effect of top crown 715 self, other positions of top crown 715 and the electric potential difference between the infrabasal plate 717 should be that V2 is to gradual change between (V1+V2), thereby in liquid crystal material layer 716, forming from central electrode 712 positions to lateral electrode 714 and 710 position continually varying electric fields 718, shown in accompanying drawing 2, long arrow is represented higher electric field intensity, and short arrow is represented lower electric field intensity.The continually varying electric field can cause the variation of liquid-crystal refractive-index in the liquid crystal material layer 716, for example makes refractive index present parabola shaped variation, thereby realizes automatically controlled lens so that described liquid crystal layer has lens effect.And the distribution of electric field 718 can realize by the distribution of resistance of regulating top crown 715, for example be made into top crown 715 trapezoidal or wedge shape etc., and the side of trapezoidal or wedge shape can be that straight line also can curve.Obviously, in order to obtain good refraction effect, top crown 715 is in central electrode 712 symmetria bilateralis settings.
Said structure has utilized the electricresistance effect of top crown 715 self, in liquid crystal material layer 716, form from central electrode 712 positions to lateral electrode 714 and 710 position continually varying electric fields 718, and only need make three electrodes and can obtain this effect, need not to make more electrode structure for the effect that improves lens, so technology is easy to realize.
In the liquid crystal panel that adopts said lens, the electrically-controlled liquid crystal lens arra should be arranged at described liquid crystal panel surface, and each lens is corresponding to the pixel on the liquid crystal panel.Because lens have formed array, so same row can Sharing Center's electrode and lateral electrode in the array, and all electrically-controlled liquid crystal lens can have common bottom crown.
Be the partial top view of described electrically-controlled liquid crystal lens arra shown in the accompanying drawing 4, comprised the central electrode 712 and the lateral electrode 714,710 that run through the adjacent lcd lens perforation that is in same row.
The above, it only is preferred implementation of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiments, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (7)
1. electrically-controlled liquid crystal lens comprise the liquid crystal material layer between top crown, bottom crown and the upper and lower pole plate, and described top crown and bottom crown are made by conductive material, it is characterized in that:
Described top crown comprises a central electrode and two lateral electrodes, and described central electrode is arranged on the center of top crown, and described two lateral electrodes are separately positioned on the top crown, and in two relative lateral location of described central electrode both sides;
Described liquid crystal lens in working order down, described two lateral electrodes have first electric potential difference that equates separately with between the central electrode, and have one second electric potential difference between described central electrode and the bottom crown, thereby in liquid crystal material layer, form from the central electrode position to lateral electrode position continually varying electric field.
2. electrically-controlled liquid crystal lens according to claim 1 is characterized in that, described top crown be shaped as trapezoidal or wedge shape.
3. electrically-controlled liquid crystal lens according to claim 1 is characterized in that, described top crown is symmetrical in the shape of central electrode both sides.
4. electrically-controlled liquid crystal lens according to claim 1 is characterized in that, the material of described top crown and bottom crown is indium tin oxide.
5. three-dimensional stereo display device, the electrically-controlled liquid crystal lens arra that comprises liquid crystal panel and be arranged at described liquid crystal panel surface, each lens is characterized in that corresponding to the pixel on the liquid crystal panel:
Described liquid crystal lens is any described electrically-controlled liquid crystal lens in the claim 1～4.
6. three-dimensional stereo display device according to claim 5 is characterized in that, described electrically-controlled liquid crystal lens arra comprises central electrode and a lateral electrode that connects, and the central electrode of described perforation and lateral electrode run through the adjacent lcd lens that are in same row.
7. three-dimensional stereo display device according to claim 5 is characterized in that, described electrically-controlled liquid crystal lens arra has the bottom crown of perforation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310168632 CN103293819A (en) | 2013-05-09 | 2013-05-09 | Electrically-controlled liquid crystal lens and three-dimensional stereoscopic display device thereof |
| CN201310422315.0A CN103744247B (en) | 2013-05-09 | 2013-09-17 | Electronic control liquid crystal lens and three-dimensional display device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201310168632 CN103293819A (en) | 2013-05-09 | 2013-05-09 | Electrically-controlled liquid crystal lens and three-dimensional stereoscopic display device thereof |
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| CN103293819A true CN103293819A (en) | 2013-09-11 |
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| CN 201310168632 Pending CN103293819A (en) | 2013-05-09 | 2013-05-09 | Electrically-controlled liquid crystal lens and three-dimensional stereoscopic display device thereof |
| CN201310422315.0A Active CN103744247B (en) | 2013-05-09 | 2013-09-17 | Electronic control liquid crystal lens and three-dimensional display device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472652A (en) * | 2013-09-17 | 2013-12-25 | 京东方科技集团股份有限公司 | Liquid crystal lens and stereo display device |
| CN103744237A (en) * | 2014-01-21 | 2014-04-23 | 东南大学 | Central point electrode extraction type nematic-phase self-adaptive liquid crystal lens |
| CN103760711A (en) * | 2014-01-21 | 2014-04-30 | 东南大学 | Central point electrode leading-out type blue phase liquid crystal lens |
| US9151971B2 (en) | 2013-09-17 | 2015-10-06 | Boe Technology Group Co., Ltd | Liquid crystal lens and stereoscopic display device |
| CN106647092A (en) * | 2017-01-04 | 2017-05-10 | 京东方科技集团股份有限公司 | Liquid crystal lens, lens assembly, optical device and display unit |
| CN107436499A (en) * | 2017-07-31 | 2017-12-05 | 四川大学 | A kind of blue phase liquid crystal post lens |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW387997B (en) * | 1997-12-29 | 2000-04-21 | Hyundai Electronics Ind | Liquid crystal display and fabrication method |
| CN100489599C (en) * | 2004-08-26 | 2009-05-20 | 财团法人秋田企业活性化中心 | Liquid crystal lens |
| JP2006313248A (en) * | 2005-05-09 | 2006-11-16 | Konica Minolta Holdings Inc | Liquid crystal lens |
| KR100707609B1 (en) * | 2005-12-02 | 2007-04-13 | 삼성에스디아이 주식회사 | 2d and 3d image selectable display device |
| KR100834917B1 (en) * | 2007-03-19 | 2008-06-03 | 삼성전기주식회사 | Liquid crystal lens and manufacturing method thereof |
| CN102341743B (en) * | 2009-09-28 | 2014-07-02 | 株式会社东芝 | Stereoscopic image display device |
| CN202183000U (en) * | 2011-09-09 | 2012-04-04 | 北京京东方光电科技有限公司 | Liquid crystal display device |
-
2013
- 2013-05-09 CN CN 201310168632 patent/CN103293819A/en active Pending
- 2013-09-17 CN CN201310422315.0A patent/CN103744247B/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472652A (en) * | 2013-09-17 | 2013-12-25 | 京东方科技集团股份有限公司 | Liquid crystal lens and stereo display device |
| CN103472652B (en) * | 2013-09-17 | 2014-10-22 | 京东方科技集团股份有限公司 | Liquid crystal lens and stereo display device |
| WO2015039384A1 (en) * | 2013-09-17 | 2015-03-26 | 京东方科技集团股份有限公司 | Liquid crystal lens and stereo display device |
| US9151971B2 (en) | 2013-09-17 | 2015-10-06 | Boe Technology Group Co., Ltd | Liquid crystal lens and stereoscopic display device |
| CN103744237A (en) * | 2014-01-21 | 2014-04-23 | 东南大学 | Central point electrode extraction type nematic-phase self-adaptive liquid crystal lens |
| CN103760711A (en) * | 2014-01-21 | 2014-04-30 | 东南大学 | Central point electrode leading-out type blue phase liquid crystal lens |
| CN106647092A (en) * | 2017-01-04 | 2017-05-10 | 京东方科技集团股份有限公司 | Liquid crystal lens, lens assembly, optical device and display unit |
| WO2018126727A1 (en) * | 2017-01-04 | 2018-07-12 | 京东方科技集团股份有限公司 | Liquid crystal lens, lens component, optical device and display apparatus |
| US10747083B2 (en) | 2017-01-04 | 2020-08-18 | Boe Technology Group Co., Ltd. | Liquid crystal lens, lens assembly, optical apparatus and display device |
| CN107436499A (en) * | 2017-07-31 | 2017-12-05 | 四川大学 | A kind of blue phase liquid crystal post lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103744247A (en) | 2014-04-23 |
| CN103744247B (en) | 2017-02-01 |
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Application publication date: 20130911 |