CN203673183U - Liquid crystal lens and stereo display device using same - Google Patents
Liquid crystal lens and stereo display device using same Download PDFInfo
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- CN203673183U CN203673183U CN201420057169.6U CN201420057169U CN203673183U CN 203673183 U CN203673183 U CN 203673183U CN 201420057169 U CN201420057169 U CN 201420057169U CN 203673183 U CN203673183 U CN 203673183U
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Abstract
The utility model discloses a liquid crystal lens and a stereo display device using the liquid crystal lens. The liquid crystal lens comprises a first substrate, a second substrate and a liquid crystal material, wherein the first substrate is provided with a first insulating layer and a third insulating layer located above the first insulating layer, the first insulating layer is alternately provided with a plurality of electrode assemblies, and the third insulating layer is provided with a plurality of second electrode assemblies; the first electrode assemblies and the second electrode assemblies are respectively formed by alternately arranging a plurality of electrodes, a second insulating layer is arranged on the second substrate, and a third electrode is arranged on the fourth insulating layer; the first electrode assemblies and the second electrode assemblies are alternately arranged along the width direction of the first substrate; the liquid crystal lens further comprises a shielding layer, wherein the shielding layer is arranged between the first insulating layer and the third insulating layer, the shielding layer is respectively provided with shielding plates on adjacent positions between the first electrode assemblies and the second electrode assemblies, and the shielding plates are made from electric materials. The liquid crystal lens has the advantages of being higher in a stereo display status stability.
Description
Technical field
The utility model relates to a kind of lens and uses the display device of these lens, particularly a kind of liquid crystal lens and use the 3 d display device of this liquid crystal lens.
Background technology
Adopt liquid crystal lens to realize the 3 d display device that free stereo shows, mainly to utilize, on two plate bases of liquid crystal layer both sides, positive and negative electrode is set respectively, and on Different electrodes, apply the driving voltage varying in size, thereby between two plate bases, form the vertical electric field with varying strength, form varifocal liquid crystal lens to drive Liquid Crystal Molecules Alignment.Therefore, the voltage that only need to control in respective electrode distributes, and the index distribution of liquid crystal lens will change accordingly, thereby the distribution of pixel emergent light is controlled, and realizes free stereo demonstration and 2D/3D and freely switches.
Figure 1 shows that a kind of common liquid crystal lens 100, in figure, only drawn a liquid crystal lens unit, in the time being applied on display, having multiple liquid crystal lens 100 and cooperatively interact into an entirety, and play the effect that forms parallax before being arranged on display panel.This liquid crystal lens 100 comprises first substrate 101 and second substrate 102, and first substrate 101, is made by transparent materials such as glass just to arranging with second substrate 102.On first substrate 101, being provided with the first electrode group 103, the first electrode groups 103 is made up as ITO or IZO etc. of transparent conductive material respectively.On second substrate 102, be provided with the second electrode 104, the second electrodes 104 also for transparent conductive material is made as ITO or IZO etc.The second electrode 104 is face electrode.The first electrode group 103 comprises 21 strip electrode E01 that separate, extend and be arranged in parallel along y direction (i.e. the length direction of this first substrate 101) with equal intervals in x direction (i.e. the Width of this first substrate 101), E02, E03 ... E20, E21.The quantity of these strip electrodes is generally odd number, and generally speaking each strip electrode possesses identical width.On the first electrode group 103, be provided with the first dielectric layer 105, on the first dielectric layer 105, be provided with the first both alignment layers 106.On the second electrode 104, be provided with the second both alignment layers 107, the first both alignment layers 106 and the second both alignment layers 107 and generally made by polyimide, for controlling the initial orientation of liquid crystal molecule.Liquid crystal material 108 is encapsulated between first both alignment layers 106 and the second both alignment layers 107 of first substrate 101 and second substrate 102.Although do not draw in Fig. 1, liquid crystal lens 100 also comprises for the periphery sealed plastic box of liquid crystal material encapsulation and for controlling z direction (i.e. the thickness direction of this first substrate 101) spacer (spacer) that liquid crystal cell is thick etc.
This liquid crystal lens 100 can form Fresnel lens under the control of voltage, to make the light that display sends form optical path difference, thereby forms stereo-picture.Compared with General Parabolic type liquid crystal lens, it is thick that Fresnel liquid crystal lens can reduce liquid crystal cell box, makes liquid crystal lens processing procedure become relatively simple, and the response time diminishes., reduce because liquid crystal cell box is thick, the materials'use amounts such as liquid crystal reduce, and can reduce costs meanwhile.
Please refer to Fig. 2, in the time of needs stereo display, on each strip electrode of the first electrode group 103, apply different driving voltages, as: the driving voltage that makes electrode E01 is Va1, the voltage of electrode E02 is Va2, the voltage of electrode E03 is Va3, wherein Va1>Va2>Va3; At electrode E04, E05, applies respectively driving voltage Vb1 on E06 and E07, Vb2, and Vb3 and Vb4, and make Vb1>Vb2>Vb3>Vb 4.In each lens unit, make voltage symmetry setting, i.e. electrode E15, E16, the driving voltage of E17 and E18 is also respectively Vb4, Vb3, Vb2 and Vb1, electrode E19, the driving voltage of E20 and E21 is also respectively Va3, Va2 and Va1.The electrode of liquid crystal lens center is as E08, E09,, E13, E14 etc., also be set to symmetrical voltage, as: making electrode E08 and E14 driving voltage is all V08, and electrode E09 and E13 driving voltage are all V09 ... the driving voltage of lens center electrode E11 is made as V11, and V08>V09>V10>V1 1.Because voltage is larger, the liquid crystal molecule relative rotation angle in liquid crystal material will be larger, so according to above voltage setting, the Fresnel Lenses optical path difference that can obtain as shown in Figure 3 distributes.
Known according to voltage facilities, in Fig. 3 in dotted ellipse frame, the driving voltage of two adjacent electrodes is set to respectively the minimum and maximum value in region, for example: with reference to Fig. 2, electrode E03 driving voltage is minimal value, and E04 driving voltage is maximum value; Electrode E07 driving voltage is minimal value, and electrode E08 is driving voltage maximum value etc.; The difference of this driving voltage will play pendulum the liquid crystal molecular orientation between the adjacent electrode in position, the demonstration information that the Fresnel Lenses forming under stereo display state also can make the mistake in this region, and increase is crosstalked.
Utility model content
The utility model provides a kind of liquid crystal lens of the stability that can improve stereo display state and has used the 3 d display device of this liquid crystal lens.
The utility model is achieved in that
A kind of liquid crystal lens, for stereo display, comprise first substrate, second substrate and liquid crystal material, first substrate and second substrate are oppositely arranged, on this first substrate, be provided with the first insulation course, be positioned at the 3rd insulation course on the first insulation course, on this first insulation course, be arranged at intervals with multiple the first electrode groups, on the 3rd insulation course, be provided with multiple the second electrode groups, described the first electrode group and the second electrode component are not arranged and are formed by multiple electrode gap, on this second substrate, be provided with the 4th insulation course, the 4th insulation course is provided with third electrode, this liquid crystal material is encapsulated between this first substrate and this second substrate, described the first electrode group and this second electrode group are arranged alternately on the Width along this first substrate, also comprise screen layer, this screen layer is arranged between this first insulation course and the 3rd insulation course, this screen layer is respectively equipped with barricade in described the first electrode group position adjacent with described the second electrode group, and this barricade is made up of conductive material.
A kind of 3 d display device, comprise display panel and liquid crystal lens, this liquid crystal lens comprises first substrate, second substrate and liquid crystal material, first substrate and second substrate are oppositely arranged, on this first substrate, be provided with the first insulation course, be positioned at the 3rd insulation course on the first insulation course, on this first insulation course, be arranged at intervals with multiple the first electrode groups, on the 3rd insulation course, be provided with multiple the second electrode groups, described the first electrode group and the second electrode component are not arranged and are formed by multiple electrode gap, on this second substrate, be provided with the 4th insulation course, the 4th insulation course is provided with third electrode, this liquid crystal material is encapsulated between this first substrate and this second substrate, described the first electrode group and this second electrode group are arranged alternately on the Width along this first substrate, also comprise screen layer, this screen layer is arranged between this first insulation course and the 3rd insulation course, this screen layer is respectively equipped with barricade in described the first electrode group position adjacent with described the second electrode group, this barricade is made up of conductive material, before this liquid crystal lens is positioned at this display panel.
Compared with prior art, this liquid crystal lens by arranging the first insulation course and being positioned at the 3rd insulation course on the first insulation course on this first substrate, on this first insulation course, be arranged at intervals with multiple the first electrode groups, on the 3rd insulation course, be provided with multiple the second electrode groups, and between this first insulation course and the 3rd insulation course, screen layer is set, this screen layer is respectively equipped with barricade in described the first electrode group position adjacent with described the second electrode group, this barricade can be eliminated the voltage difference of adjacent electrode in adjacent electrode group to the interference of liquid crystal molecular orientation, thereby promote the stability showing.So, this liquid crystal lens and use the 3 d display device of this liquid crystal lens to have advantages of that stereo display state stability is higher.
Brief description of the drawings
Fig. 1 shows a kind of common liquid crystal lens;
Fig. 2 is the schematic diagram of arranging of the liquid crystal molecule under the stereo display of liquid crystal lens shown in Fig. 1 situation;
Fig. 3 is that in the each lens unit under the stereo display of liquid crystal lens shown in Fig. 1 situation, optical path difference distributes;
Fig. 4 shows the diagrammatic cross-section of the utility model liquid crystal lens the first embodiment;
Fig. 5 is the stereographic map of electrode in liquid crystal lens shown in Fig. 1;
Fig. 6 is that the optical path difference of liquid crystal lens shown in Fig. 1 distributes;
Fig. 7 is the utility model liquid crystal lens the second embodiment diagrammatic cross-section.
Embodiment
Fig. 4 is the diagrammatic cross-section of the utility model liquid crystal lens the first embodiment.This liquid crystal lens contains multiple liquid crystal lens unit 1000, has only drawn a liquid crystal lens unit in figure, and each liquid crystal lens unit has identical structure.Concretely, this liquid crystal lens unit 1000 comprises first substrate 1001, second substrate 1002 and is encapsulated in the liquid crystal material between this first substrate 1001 and second substrate 1002.First substrate 1001 is oppositely arranged with second substrate 1002, makes by transparent materials such as glass.On first substrate 1001, be provided with the first insulation course 1004 and be positioned at the 3rd insulation course 1010 on the first insulation course 1004, on this first insulation course 1004, be arranged at intervals with multiple the first electrode groups 1003, on the 3rd insulation course 1010, be provided with multiple the second electrode groups 1007, each the first electrode group 1003 and third electrode group 1007 are arranged and are formed by multiple electrode gap respectively.On this second substrate 1002, be provided with the 4th insulation course 1012, the four insulation courses 1012 and be provided with the second electrode 1009.The first insulation course 1004, the 3rd insulation course 1010, the 4th insulation course 1012 can be the materials such as silicon nitride or monox.
Each liquid crystal lens unit 1000 comprises two the first electrode groups 1003, the electrode that first electrode group 1003 comprises is E04, E05, E06 and E07, these electrodes are the strip electrode that separates, extends and be arranged in parallel along y direction (i.e. the length direction of this first substrate 1001) with equidistant from distance in x direction (i.e. the Width of this first substrate 1001); The electrode that another the first electrode group 1003 comprises is E15, E16, E17 and E18, these electrodes are the strip electrode for separating, extend and be arranged in parallel along y direction (i.e. the length direction of this first substrate 1001) with equidistant from distance in x direction (i.e. the Width of this first substrate 1001) also.These two the first electrode groups 1003 distribute about liquid crystal lens unit 1000 Central Symmetries.These electrodes are made up as ITO or IZO etc. of transparent conductive material.This first insulation course 1004 covers these two the first electrode groups 1003 completely.
Please refer to Fig. 4, on the 3rd insulation course 1010, be provided with multiple the second electrode groups 1007, be generally transparent conductive material as ITO or IZO etc.Each liquid crystal lens unit 1000 comprises 1007, one the second electrode groups 1007 of three the second electrode groups and comprises electrode E01, E02 and E03.These electrodes E01, E02 and E03 are the strip electrode that separates, extends and be arranged in parallel along y direction with equidistant from distance in x direction; Another the second electrode group 1007 comprises electrode E08, E09 ..., E13 and E14, these electrodes are the strip electrode for separating, extend and be arranged in parallel along y direction with equidistant from distance in x direction also; The 3rd the second electrode group 1007 comprises electrode E19, E20 and E21, and these electrodes are the strip electrode for separating, extend and be arranged in parallel along y direction with equidistant from distance in x direction also.These three the second electrode groups 1007 uniformly-spaced arrange mutually, and the first electrode group 1003 is arranged alternately on the Width along this first substrate 1001 with this second electrode group 1007, that is to say, in z direction, mutually can not block (as shown in Figure 4).On the 3rd insulation course 1010, be provided with the first alignment film 1011, for controlling the initial orientation of liquid crystal lens first substrate 1,001 one side liquid crystal molecules.
Please refer to Fig. 4, also comprise screen layer 1006, this screen layer 1006 is arranged between this first insulation course 1004 and the 3rd insulation course 1010, and this screen layer 1006 is respectively equipped with barricade 1005 in these the first electrode groups 1003 position adjacent with these the second electrode groups 1007.This screen layer 1006 is made up of insulating material.This barricade 1005 is arranged in the centre position place of described the first electrode group 1003 and 1,007 two adjacent electrodes of described the second electrode group, and the width of this barricade 1005 is less than or equal to the distance at these two adjacent electrode centers.This barricade is made up of the metal or alloy material that conducting electricity, or this barricade is made up of transparent conductive material.The voltage difference that this barricade 1005 forms liquid crystal material for eliminating adjacent electrode group adjacent electrode.Relative this first insulation course 1004 of two barricades 1005 of each the first electrode group 1003 both sides is "eight" shape setting.
A side at second substrate 1002 near first substrate 1001, be provided with shadow shield 1008, shadow shield 1008 shadow shields just arrange described barricade 1005 respectively on the thickness direction of this first substrate 1001, and its width should be slightly larger than the width of barricade 1005 at x direction projection.On shadow shield 1008, be provided with the 4th insulation course 1009 for planarization, on the 4th insulation course 1009, be provided with third electrode 1012, third electrode 1012 is face electrode, and without special electrode pattern, material is generally ITO or IZO etc.On third electrode 1012, be provided with the second alignment film 1013, for controlling the initial orientation of liquid crystal lens second substrate 1,002 one side liquid crystal molecules.Liquid crystal layer 1014 is encapsulated between first substrate 1001 and second substrate 1002, and other are as not shown in FIG. in periphery sealed plastic box, spacer etc.
With reference to Fig. 4 and Fig. 5, each strip electrode of the first electrode group 1003 all has identical width W with each strip electrode of the second electrode group 1007, and the about 1:1 of electrode separation and width distributes.Adjacent electrode E03 center and E04 center distance are 2W, now can make barricade 1005 be less than or equal to 2W at the width W S of x direction projection.
According to above description, to there is the minimizing electrode of region voltage as E03 (E07, E15, E19 etc.) with there is the electrode E04 (E08 of region voltage maximum value, E14, E18) be separately positioned on different layers, insulation course by therebetween and the effect of metal screen layer, reduce both electric field intensity (as shown in Figure 6) in the horizontal direction, improve the orientation of unstable region liquid crystal molecule, meanwhile, by light shield layer being set for blocking crosstalking that unstable region causes, improve Fresnel liquid crystal lens focus characteristics.
Be illustrated in figure 7 this patent liquid crystal lens the second embodiment schematic diagram.This liquid crystal lens contains multiple liquid crystal lens unit 2000, has only drawn a liquid crystal lens unit in figure, and each liquid crystal lens unit has identical structure.Concretely, this liquid crystal lens unit 2000 comprises first substrate 2001, second substrate 2002 and is encapsulated in the liquid crystal material between this first substrate 2001 and second substrate 2002.First substrate 2001 is oppositely arranged with second substrate 2002, makes by transparent materials such as glass.On first substrate 2001, be provided with the first insulation course 2004 and be positioned at the 3rd insulation course 2010 on the first insulation course 2004, on this first insulation course 2004, be arranged at intervals with multiple the first electrode groups 2003, on the 3rd insulation course 2010, be provided with multiple the second electrode groups 2007, each the first electrode group 2003 and third electrode group 2007 are arranged and are formed by multiple electrode gap respectively.On this second substrate 2002, be provided with the 4th insulation course 2009, the four insulation courses 2009 and be provided with the second electrode 2012.The first insulation course 2004, the 3rd insulation course 2010, the 4th insulation course 2009 can be the materials such as silicon nitride or monox.Also comprise screen layer 2006, this screen layer 2006 is arranged between this first insulation course 2004 and the 3rd insulation course 2010.On this screen layer 2006, be provided with barricade 2005.Different from the first embodiment, the first electrode group 2003 and the second electrode group 2007 also comprise respectively multiple staggered electrode E04, E05, E06, E07, E15, E16, E17, E18 and E01, E02, E03, E08, E09, E10, E11, E12, E13, E14, E19, E20, E21.Forming when the first electrode group 2003, the staggered electrode E0102 in the first electrode group 2003 on the thickness direction of this first substrate just to being arranged on the gap setting of electrode E01 and E02 in the second electrode group 2007 on the 3rd insulation course.The staggered electrode E0203 of the first electrode group 2003 is between the strip electrode E02 of the second electrode group 2007 and E03 etc.; In the time forming the second electrode group 2007, the staggered electrode E0405 of the second electrode group 2007 is between the strip electrode E04 and E05 of the first electrode group 2003, and the staggered electrode E0506 of the second electrode group 2007 is between the strip electrode E05 of the first electrode group 2003 and E06 etc.; Form after double-layer staggered electrode structure, can voltage gradient be got thinner in each region.
Certainly, understandable, in the second embodiment, double-layer staggered electrode needn't be set, individual layer staggered electrode is set and also can realizes the function that voltage gradient is segmented.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a liquid crystal lens, for stereo display, comprise first substrate, second substrate and liquid crystal material, first substrate and second substrate are oppositely arranged, on this first substrate, be provided with the first insulation course, be positioned at the 3rd insulation course on the first insulation course, on this first insulation course, be arranged at intervals with multiple the first electrode groups, on the 3rd insulation course, be provided with multiple the second electrode groups, described the first electrode group and the second electrode component are not arranged and are formed by multiple electrode gap, on this second substrate, be provided with the 4th insulation course, the 4th insulation course is provided with third electrode, this liquid crystal material is encapsulated between this first substrate and this second substrate,
It is characterized in that, described the first electrode group and this second electrode group are arranged alternately on the Width along this first substrate, also comprise screen layer, this screen layer is arranged between this first insulation course and the 3rd insulation course, this screen layer is respectively equipped with barricade in described the first electrode group position adjacent with described the second electrode group, and this barricade is made up of conductive material.
2. liquid crystal lens according to claim 1, is characterized in that, two barricades of each the first electrode group both sides relatively this first insulation course are "eight" shape setting.
3. liquid crystal lens according to claim 1, it is characterized in that, this barricade is arranged in the centre position place of described the first electrode group and two adjacent electrodes of described the second electrode group, and the width of this barricade is less than or equal to the distance at these two adjacent electrode centers.
4. according to the liquid crystal lens described in claim 2 or 3, it is characterized in that, this screen layer is made up of insulating material, and this barricade is made up of the metal or alloy material that conducting electricity, or this barricade is made up of transparent conductive material.
5. liquid crystal lens according to claim 1, is characterized in that, this first electrode and the second electrode are strip electrode, and this second electrode is plane electrode.
6. liquid crystal lens according to claim 1, it is characterized in that, on this second substrate, be provided with shadow shield, described shadow shield respectively on the thickness direction of this first substrate just to described barricade setting, the width of described shadow shield is slightly larger than the width of this barricade.
7. liquid crystal lens according to claim 1, is characterized in that, on the 3rd insulation course, is provided with the first both alignment layers, under the 4th insulation course, is provided with the second both alignment layers, and this first both alignment layers and this second both alignment layers are made up of polyimide respectively.
8. liquid crystal lens according to claim 1, it is characterized in that, also comprise multiple staggered electrodes, described staggered electrode is arranged on this first insulation course, and described staggered electrode just arranges the gap that is arranged on electrode in the second electrode group on the 3rd insulation course on the thickness direction of this first substrate.
9. liquid crystal lens according to claim 8, it is characterized in that, described staggered electrode is also arranged on the 3rd insulation course, and described staggered electrode just arranges the gap that is arranged on electrode in the first electrode group on this first insulation course on the thickness direction of this first substrate.
10. a 3 d display device, comprises display panel and liquid crystal lens, it is characterized in that, this liquid crystal lens is selected from the liquid crystal lens described in any one in claim 1 to 9, before this liquid crystal lens is positioned at this display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057169.6U CN203673183U (en) | 2014-01-28 | 2014-01-28 | Liquid crystal lens and stereo display device using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420057169.6U CN203673183U (en) | 2014-01-28 | 2014-01-28 | Liquid crystal lens and stereo display device using same |
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| CN203673183U true CN203673183U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420057169.6U Expired - Fee Related CN203673183U (en) | 2014-01-28 | 2014-01-28 | Liquid crystal lens and stereo display device using same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760712A (en) * | 2014-01-28 | 2014-04-30 | 重庆卓美华视光电有限公司 | Liquid crystal lens and stereoscopic display device using same |
| CN110389452A (en) * | 2018-04-18 | 2019-10-29 | 三菱电机株式会社 | Display device and its manufacturing method |
-
2014
- 2014-01-28 CN CN201420057169.6U patent/CN203673183U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760712A (en) * | 2014-01-28 | 2014-04-30 | 重庆卓美华视光电有限公司 | Liquid crystal lens and stereoscopic display device using same |
| CN103760712B (en) * | 2014-01-28 | 2016-08-17 | 重庆卓美华视光电有限公司 | Liquid crystal lens and use the 3 d display device of this liquid crystal lens |
| CN110389452A (en) * | 2018-04-18 | 2019-10-29 | 三菱电机株式会社 | Display device and its manufacturing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20170128 |