CN203673194U - Liquid crystal light valve and free stereo display device - Google Patents
Liquid crystal light valve and free stereo display device Download PDFInfo
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- CN203673194U CN203673194U CN201420055470.3U CN201420055470U CN203673194U CN 203673194 U CN203673194 U CN 203673194U CN 201420055470 U CN201420055470 U CN 201420055470U CN 203673194 U CN203673194 U CN 203673194U
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Abstract
The utility model discloses a liquid crystal light valve and a free stereo display device. The liquid crystal light valve comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate is arranged above the second substrate, the first substrate is provided with a first electrode, a plurality of lens units and a second alignment film located at the bottommost part of the first substrate, and the second substrate is provided with a second electrode and a third alignment film located above the second electrode; the liquid crystal layer is packaged between the second alignment film and the third alignment film and is made from a nematic liquid crystal material, and the display module comprises an upper polaroid; each lens unit comprises a concave cambered surface arranged on the first substrate and a liquid crystal coating arranged in the concave cambered surface, the liquid crystal coatings are curable liquid crystal coatings, the friction direction of the third alignment film is parallel to the direction of the transmitting shaft of the upper polaroid, and the friction direction of the second alignment membrane is vertical to the direction of the transmitting shaft of the upper polaroid. The liquid crystal light valve and the free stereo display device have the advantages of being simple in structure.
Description
Technical field
The utility model relates to a kind of lens and display device, particularly a kind of liquid crystal light valve and auto-stereoscopic display device.
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 two dimension/solid and freely switches.
As shown in Figure 1, liquid crystal lens 100 is a kind of common liquid crystal lens structure, and it contains multiple liquid crystal lens unit as L1 and L2 etc. (only having drawn two lens units in figure), and each liquid crystal lens unit has identical structure with L2 etc. as L1.Concretely, liquid crystal lens 100 comprises first substrate 101 and second substrate 102, and first substrate 101 just to arranging, is generally the transparent materials such as glass with second substrate 102.On first substrate 101, be provided with the first electrode 103, the first electrodes 103 and be generally transparent conductive material as ITO or IZO etc.On second substrate 102, being provided with the second electrode 107, the second electrodes 107 is also that transparent conductive material is as ITO or IZO.Within each liquid crystal lens unit, taking L1 as example, the first electrode 103 comprises S11, S12, S13 ... S18, multiple strip electrodes that separate at certain intervals and be arranged in parallel such as S19, the quantity of electrode is generally odd number (describing as an example of nine electrodes example below), and the width of each strip electrode is respectively W (S11), W (S12), W (S13) ..., W (S18), W (S19) etc., generally speaking, strip electrode possesses identical width, i.e. W (S11)=W (S12)=W (S13)=...=W (S18)=W (S19).Between two liquid crystal lens unit are as L1 and L2, share same strip electrode S19.In addition, liquid crystal lens 100 also comprises the dielectric material 104 being arranged on the first electrode 103, is arranged on the first alignment film 105 on dielectric material 104.On this second electrode 107, be provided with the second alignment film 108.This first alignment film 105 and the second alignment film 108 are for controlling the orientation of liquid crystal molecule.Liquid crystal material 106 is encapsulated between first substrate 101 and second substrate 102, between this first alignment film 105 and the second alignment film 108.Although do not draw in Fig. 1, liquid crystal lens 100 also comprises the periphery sealed plastic box that encapsulates for liquid crystal material 106 and for controlling the spacer that liquid crystal cell is thick (spacer) etc.
The first alignment film 105, the second alignment film 108 are to control the key that liquid crystal material 106 is orientated.Friction (Rubbing) processing procedure of alignment film 105,108 can form the groove (not shown) of arranging by certain orientation (being frictional direction) on the surface of alignment film 105,108.Liquid crystal material on alignment film 105,108 can reach directional effect according to this frictional direction because of the acting force between molecule, produce orientation (Align) effect, so can control liquid crystal molecule and arrange according to specific direction and predetermined angle of inclination, be conducive to display work.
As shown in Figure 2, in the time that needs carry out stereo display, taking lens unit L1 as example, at each strip electrode of the first electrode 103 as S11, S12, S13 ... S18, applies symmetrical voltage on S19 etc., the second electrode 107 as public power extremely voltage be set to zero.(be △ ε=ε ∥-ε ⊥ >0 with positivity liquid crystal material, in formula, ε ∥ is the dielectric coefficient of long axis of liquid crystal molecule direction, ε ⊥ is the dielectric coefficient of liquid crystal molecule short-axis direction) for example, can make on each strip electrode of the first electrode 103 voltage difference with this second electrode 107: V (S11)=V (S19) >V (S12)=V (S18) >V (S13)=V (S17) >V (S14)=V (S16) >V (S15); That is to say, the voltage minimum applying on the central electrode S15 of liquid crystal lens unit L1, and at the edge electrodes S11 of liquid crystal lens unit L1, the voltage maximum applying on S19, the voltage from lens center to rims of the lens on each strip electrode distributes with certain gradient.Due to the voltage maximum applying on lens unit edge electrodes, edge electrodes S11, the molecule of the liquid crystal material 106 of S19 position will substantially present vertical direction and distribute, and long axis of liquid crystal molecule is parallel with direction of an electric field; And less the closer to the center voltage of lens unit, therefore liquid crystal molecule can tend to horizontal direction arrangement gradually, and long axis of liquid crystal molecule is vertical with direction of an electric field.In each lens unit, because voltage symmetry distributes, liquid crystal material is along with the variation of electric field intensity presents the gradual change of refractive index, thereby whole liquid crystal lens permutation possesses good optical imagery characteristic.When two dimension shows, at the first electrode 103 as S11, S12, S13 ..., S18, S19(is taking lens unit L1 as example) etc. and the second electrode 107 on apply voltage and be all set to zero or between the two without pressure reduction, liquid crystal material 106 is not subject to the impact of electric field, still keeps the initial orientation (as Fig. 1) of liquid crystal molecule, and now liquid crystal lens unit is not modulated incident light direction.
As previously mentioned, in the time of stereo display, need on each strip electrode, apply symmetrical voltage, as V (S11)=V (S19) >V (S12)=V (S18) >V (S13)=V (S17) >V (S14)=V (S16) >V (S15), the molecule of liquid crystal material is arranged according to predetermined direction, the lens arrangement of formation rule, finally in left eye and eye image, form parallax, thereby produce stereo display effect.The increasing of number of electrodes during along with each liquid crystal lens Unit Design, the different driving voltage quantity that need to provide also increases thereupon, causes driving circuit and the design of liquid crystal lens peripheral circuit to become complicated.Taking each lens unit as example, suppose has N strip electrode in each lens unit, in the time that symmetrical driving voltage is provided, at least needs to provide (N+1)/2 different driving voltage.Meanwhile, because liquid crystal lens electrode material is as larger in ITO impedance, cause liquid crystal lens array entirety pressure drop difference, further increased crosstalking of liquid crystal lens 3 d display device, liquid crystal lens is applied on large scale 3 d display device more difficult.
Utility model content
The utility model provides a kind of liquid crystal light valve simple in structure and auto-stereoscopic display device.
The utility model is achieved in that a kind of liquid crystal light valve, for coordinating and carry out stereo display with display module, comprise first substrate, second substrate and liquid crystal layer, this first substrate is arranged on the top of this second substrate, on this first substrate, be provided with the first electrode, multiple lens units and be positioned at the second alignment film of this first substrate bottommost, on this second substrate, be provided with the second electrode and be positioned at the 3rd alignment film of the second electrode top, this liquid crystal layer is encapsulated between this second alignment film and the 3rd alignment film, this liquid crystal layer is nematic liquid crystalline material, this display module comprises polaroid, each lens unit comprises respectively and is arranged on the cancave cambered surface on this first substrate and is arranged on the liquid crystal coatings in this cancave cambered surface, this liquid crystal coatings is curing type liquid crystal coatings, the frictional direction of the 3rd alignment film is parallel with the light transmission shaft direction of polaroid on this, and the frictional direction of this second alignment film is vertical with the light transmission shaft direction of polaroid on this, when to this first electrode and the second electrode application voltage, the polarization direction that polaroid penetrated and passed the light of this liquid crystal layer from this will not change, and this liquid crystal coatings is identical to the refractive index of this light with this first substrate to applying the refractive index of the light of injecting from this liquid crystal layer before voltage, this liquid crystal coatings is greater than the refractive index of this first substrate to this light to applying the refractive index of the light of injecting from this liquid crystal layer after voltage.
A kind of auto-stereoscopic display device, comprise display module and liquid crystal light valve, this liquid crystal light valve is for coordinating and carry out stereo display with display module, comprise first substrate, second substrate and liquid crystal layer, this first substrate is arranged on the top of this second substrate, on this first substrate, be provided with the first electrode, multiple lens units and be positioned at the second alignment film of this first substrate bottommost, on this second substrate, be provided with the second electrode and be positioned at the 3rd alignment film of the second electrode top, this liquid crystal layer is encapsulated between this second alignment film and the 3rd alignment film, this liquid crystal layer is nematic liquid crystalline material, this display module comprises polaroid, each lens unit comprises respectively and is arranged on the cancave cambered surface on this first substrate and is arranged on the liquid crystal coatings in this cancave cambered surface, this liquid crystal coatings is curing type liquid crystal coatings, the frictional direction of the 3rd alignment film is parallel with the light transmission shaft direction of polaroid on this, and the frictional direction of this second alignment film is vertical with the light transmission shaft direction of polaroid on this, when to this first electrode and the second electrode application voltage, the polarization direction that polaroid penetrated and passed the light of this liquid crystal layer from this will not change, and this liquid crystal coatings is identical to the refractive index of this light with this first substrate to applying the refractive index of the light of injecting from this liquid crystal layer before voltage, this liquid crystal coatings is greater than the refractive index of this first substrate to this light to applying the refractive index of the light of injecting from this liquid crystal layer after voltage, before this liquid crystal light valve is positioned at this display module.
Compared with prior art, this liquid crystal light valve is by arranging the first electrode and the second electrode in these liquid crystal layer both sides, the liquid crystal coatings of semicircle column type is set on this first substrate, change by the electrode of opening or closing these liquid crystal layer both sides the polarisation of light direction entering in this liquid crystal coatings, this refractive index that enters light in this liquid crystal coatings is changed, thereby realize the conversion of two dimension and stereo display state.Owing to only pair of electrodes need being set, so this liquid crystal light valve and auto-stereoscopic display device have advantages of simple in structure.
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 shows the diagrammatic cross-section of this patent liquid crystal light valve the first embodiment;
Fig. 4 is the schematic perspective view of first substrate in liquid crystal light valve shown in Fig. 3;
Fig. 5 goes up the light transmission shaft direction of polaroid and the schematic diagram of alignment film frictional direction in liquid crystal light valve shown in Fig. 3;
Fig. 6 is the making schematic diagram of first substrate and liquid crystal material in liquid crystal light valve shown in Fig. 3;
Fig. 7 is the schematic diagram of liquid crystal light valve shown in Fig. 3 at two-dimentional show state;
Fig. 8 is the schematic diagram of liquid crystal light valve shown in Fig. 3 at stereo display state;
Fig. 9 is the diagrammatic cross-section of this patent liquid crystal light valve the second embodiment.
Embodiment
Fig. 3 is the sectional view of this patent liquid crystal light valve the first embodiment.This liquid crystal light valve 1000 contains multiple liquid crystal lens unit as L1, L2, and L3 and L4 etc. (in figure, only having drawn four lens units), each liquid crystal lens unit L1, L2, L3 has identical structure with L4.Concretely, liquid crystal light valve 1000 comprises first substrate 1001 and second substrate 1002, and first substrate 1001 is arranged on the top of this second substrate 1002, and first substrate 1001 is made up of transparent material PET.Second substrate 1002 is generally glass substrate.
Please refer to Fig. 3 and Fig. 4, the end face 1001a of this first substrate 1001 is burnishing surface.The bottom surface 1001b of this first substrate 1001 is four cancave cambered surfaces that are arranged in parallel, the respectively corresponding lens unit L1 of each cancave cambered surface, L2, L3, L4.These cancave cambered surfaces are arranged in parallel and extend along Y-direction (i.e. the length direction of this first substrate 1001) at directions X (i.e. the Width of this first substrate 1001).For strengthening the adhesion strength of first substrate 1001, flat top surface 1001a can adopt surface treatment to increase skin hardness.
Continue with reference to Fig. 3, on first substrate 1001, being provided with the first electrode 1003, the first electrodes 1003 is face electrode, is generally transparent conductive material as ITO or IZO etc.The bottom surface 1001b that the first electrode 1003 is close to this first substrate 1001 arranges, and forms four interconnective cambered surfaces.Under this first electrode 1003, be provided with the first alignment film 1004, the first alignment films 1004 and be generally the organic materials such as polyimide.Under the first alignment film 1004, be provided with uv-curing type liquid crystal coatings 1005, under this liquid crystal coatings 1005, be provided with the second alignment film 1009, the second alignment films 1009 and be generally the organic materials such as polyimide.This second alignment film 1009 is positioned at the bottommost of this first substrate 1001.This liquid crystal coatings 1005 is full of the groove of four cancave cambered surfaces formation of this first substrate 1001 bottom surface 1001b, forms the semicircle cylinder lens of four longitudinal arrangements.Each cancave cambered surface of this bottom surface 1001b and the liquid crystal coatings 1005 being arranged in this cancave cambered surface form respectively a lens unit.These liquid crystal coatings 1005 utilize poly-lens to show that (lenticular sheet displays) controls the directive of left and right image, form parallax, finally realize stereo display.This second alignment film 1009 is planar structure.
Please refer to Fig. 3, on second substrate 1002, being provided with the second electrode 1006, the second electrodes 1006 can be face electrode; Also can be set to the multiple electrodes that can control separately.The second electrode 1006 is generally transparent conductive material as ITO or IZO etc.Be provided with the 3rd alignment film 1007, the three alignment films 1007 on the surface of the second electrode 1006 and be generally the organic materials such as polyimide.The 3rd alignment film 1007 is arranged on this second electrode 1006.This liquid crystal layer 1008 is encapsulated between this second alignment film 1009 and the 3rd alignment film 1007, and liquid crystal layer 1008 is generally left-handed or dextrorotation twisted nematic liquid crystals material.Between first substrate 1001 and second substrate 1002, be provided with the periphery sealed plastic box 1010 that prevents liquid crystal leakage.In addition,, although do not draw in Fig. 3, liquid crystal light valve 1000 also can comprise for controlling the spacer that liquid crystal cell is thick (spacer) etc.
Please refer to figure five, the utility model auto-stereoscopic display device comprises display module (not shown) and is positioned at this display module liquid crystal light valve 1000 before.The exiting surface of the display module matching with above-mentioned liquid crystal light valve 1000 comprises a upper polaroid 1011.This display module can be the displays such as LCD, OLED.Setting 1011a is the light transmission shaft direction (difference of the two-dimentional display module display mode of foundation of polaroid 1011 on this, can be set to other directions), on the frictional direction of the 3rd alignment film 1007 and two-dimentional display module, the light transmission shaft direction 1011a of polaroid 1011 be arranged in parallel, can be shown in 1007a or 1007b.The vertical setting of light transmission shaft direction 1011a of the frictional direction 1009a of the second alignment film 1009 or 1009b and upper polaroid 1011.
Fig. 6 is the manufacturing process of the liquid crystal coatings 1005 on this first substrate 1001.Wherein, comprise auxiliary glass substrate 1013, be printed on the auxiliary alignment film 1012 on auxiliary glass substrate 1013, be generally the organic materials such as polyimide.When making, first, form cancave cambered surface (as shown in step I) in the bottom of first substrate 1001; Under the cancave cambered surface of first substrate 1001, form the first electrode 1003 (as shown in Step II); Then, print the first alignment film 1004 (seeing Step II I) on this first electrode 1003, the frictional direction of the first alignment film 1004 is identical with the 3rd alignment film 1007 frictional directions; On this auxiliary glass substrate 1013, form auxiliary alignment film 1012 (seeing step IV and V), the frictional direction of auxiliary alignment film 1012 is contrary with the first alignment film 1004 frictional directions, differs 180 degree; Liquid crystal coatings 1005 coatings are fitted between this first alignment film 1004 and this auxiliary alignment film 1012, and complete orientation (seeing step VI); With UV consolidation liquid crystal coating 1005 (seeing step VII); Finally, peel off auxiliary glass substrate 1013 (seeing step VIII).Then on the second electrode 1006, form respectively the 3rd alignment film 1007 and form the second alignment film 1009 on uv-curing type liquid crystal coatings 1005 surfaces, then make twisted nematic liquid crystals light valve 1000 through technological processes such as friction orientation, liquid crystal filling and encapsulation.
Fig. 7 is the schematic diagram of this liquid crystal light valve 3 d display device under two dimension and stereo display pattern.Please refer to Fig. 3 to Fig. 5, because the light transmission shaft direction 1011a of upper polaroid 1011 and the infrabasal plate frictional direction 1007a (or 1007b) of liquid crystal light valve 1000 of two-dimentional display module be arranged in parallel, at liquid crystal light valve 1000 during in closed condition, from two-dimentional display module, the linearly polarized light polarization direction of polaroid 1011 outgoing is by the rear 90-degree rotation of liquid crystal layer 1008, thereby vertical with the molecular long axis direction of liquid crystal coatings 1005, now, the refractive index of light in liquid crystal coatings 1005 is no, if the refractive index of the first substrate 1001 of liquid crystal light valve 1000 and the first electrode 1003 is np, and make no equal np by selection, therefore incident light does not reflect at liquid crystal coatings 1005 and the interface of first substrate 1001, light penetrates this liquid crystal coatings 1005 will show two dimensional image afterwards with first substrate 1001.Under two dimensional mode, the key property such as brightness, the resolution parameter substantially unaffected (as shown in Figure 7) of whole liquid crystal light valve 3 d display device.If enter stereo display pattern, need to open this liquid crystal light valve 1000, this first electrode 1003 and the second electrode 1006 are applied to voltage, the liquid crystal molecular orientation in liquid crystal layer 1008 is changed (as shown in Figure 8).Now, from two-dimentional display module, the light of polaroid 1011 outgoing is by these liquid crystal layer 1008 rears to constant, thereby parallel with the molecular long axis direction of liquid crystal coatings 1005, the refractive index of light in liquid crystal coatings 1005 is ne.Because refractive index n e is greater than the first substrate 1001 of liquid crystal light valve 1000 and the refractive index n p of the first electrode 1003, therefore incident light will reflect at liquid crystal coatings 1005 and the interface of first substrate 1001.This just makes this liquid crystal coatings 1005 at lens unit L1, L2, and L3, plays respectively the function of convex lens in L4, and utilize poly-lens displaying principle to realize right and left eyes image and separate, thus the stereoeffect of watching (as shown in Figure 8).
From narrating above, this liquid crystal light valve 1000 is by arranging the first electrode 1003 and the second electrode 1006 in these liquid crystal layer 1008 both sides, the liquid crystal coatings 1005 of semicircle column type is set on this first substrate 1001, change by opening or close this liquid crystal layer 1008 the polarisation of light direction entering in this liquid crystal coatings 1005, this refractive index that enters light in this liquid crystal coatings 1005 is changed, thereby realize the conversion of two dimension and stereo display state.Owing to only pair of electrodes need being set, so this liquid crystal light valve 1000 has advantages of simple in structure.
Understandable, this first electrode 1003 not necessarily will be arranged between this liquid crystal coatings 1005 and this first substrate 1001, also can be arranged between this liquid crystal coatings 1005 and this second alignment film 1009, thereby eliminate the impact of these the first electrode 1003 refractive indexes, this first electrode 1003 can be selected and the material of these first substrate 1001 different refractivities.
Figure 9 shows that the second embodiment of the present utility model, the difference of the liquid crystal light valve in this liquid crystal light valve and the first embodiment is, the second electrode on the second substrate of this liquid crystal light valve comprises the sub-electrode (not shown) of multiple electricity each other isolation.Like this, by controlling the voltage on different sub-electrodes, can realize the part of liquid crystal light valve stereo display state and open or close, realize coexisting of two dimension demonstration and stereo display, left side at 3 d display device shows two-dimensional signal, shows steric information on right side.
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 light valve, for coordinating and carry out stereo display with display module, comprise first substrate, second substrate and liquid crystal layer, this first substrate is arranged on the top of this second substrate, on this first substrate, be provided with the first electrode, multiple lens unit and be positioned at the second alignment film of this first substrate bottommost, on this second substrate, be provided with the second electrode and be positioned at the 3rd alignment film of the second electrode top, this liquid crystal layer is encapsulated between this second alignment film and the 3rd alignment film, this liquid crystal layer is nematic liquid crystalline material, and this display module comprises polaroid;
It is characterized in that, each lens unit comprises respectively and is arranged on the cancave cambered surface on this first substrate and is arranged on the liquid crystal coatings in this cancave cambered surface, this liquid crystal coatings is curing type liquid crystal coatings, the frictional direction of the 3rd alignment film is parallel with the light transmission shaft direction of polaroid on this, and the frictional direction of this second alignment film is vertical with the light transmission shaft direction of polaroid on this; When to this first electrode and the second electrode application voltage, the polarization direction that polaroid penetrated and passed the light of this liquid crystal layer from this will not change, and this liquid crystal coatings is identical to the refractive index of this light with this first substrate to applying the refractive index of the light of injecting from this liquid crystal layer before voltage; This liquid crystal coatings is greater than the refractive index of this first substrate to this light to applying the refractive index of the light of injecting from this liquid crystal layer after voltage.
2. liquid crystal light valve according to claim 1, is characterized in that, this first electrode is arranged on the bottom surface of this first substrate and between this liquid crystal coatings and this first substrate, the refractive index of this first electrode pair light is identical with this first substrate.
3. liquid crystal light valve according to claim 1, is characterized in that, this first electrode is arranged between this liquid crystal coatings and this second alignment film.
4. liquid crystal light valve according to claim 1, is characterized in that, the liquid crystal coatings being arranged in this cancave cambered surface is semi-cylindrical structure.
5. liquid crystal light valve according to claim 1, is characterized in that, this liquid crystal coatings is ultraviolet hardening liquid crystal coatings.
6. liquid crystal light valve according to claim 1, is characterized in that, the second electrode on this second substrate comprises the sub-electrode of multiple electricity each other isolation.
7. liquid crystal light valve according to claim 1, is characterized in that, the manufacturing process of the liquid crystal coatings on this first substrate is: cancave cambered surface is formed on the bottom at first substrate; Under the cancave cambered surface of first substrate, form the first electrode; On this first electrode, print the first alignment film; On auxiliary glass substrate, form auxiliary alignment film; Liquid crystal coatings coating is fitted between this first alignment film and this auxiliary alignment film, and completes orientation; With UV consolidation liquid crystal coating; Peel off auxiliary glass substrate.
8. liquid crystal light valve according to claim 1, is characterized in that, this first substrate is made up of transparent material PET, and this first electrode and this second electrode are made up of the ITO of electrically conducting transparent.
9. liquid crystal light valve according to claim 1, is characterized in that, this liquid crystal layer is left-handed or dextrorotation twisted nematic liquid crystals material.
10. an auto-stereoscopic display device, comprises display module and liquid crystal light valve, it is characterized in that, this liquid crystal light valve is selected from the liquid crystal light valve described in any one in claim 1 to 9, before this liquid crystal light valve is positioned at this display module.
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| CN201420055470.3U CN203673194U (en) | 2014-01-28 | 2014-01-28 | Liquid crystal light valve and free stereo display device |
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| CN201420055470.3U CN203673194U (en) | 2014-01-28 | 2014-01-28 | Liquid crystal light valve and free stereo display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809345A (en) * | 2014-01-28 | 2014-05-21 | 重庆卓美华视光电有限公司 | Liquid crystal light valve and auto-stereoscopic display device |
| CN113156716A (en) * | 2021-03-19 | 2021-07-23 | 周洪喜 | Liquid crystal membrane, preparation method thereof and device for preparing liquid crystal membrane |
-
2014
- 2014-01-28 CN CN201420055470.3U patent/CN203673194U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809345A (en) * | 2014-01-28 | 2014-05-21 | 重庆卓美华视光电有限公司 | Liquid crystal light valve and auto-stereoscopic display device |
| CN113156716A (en) * | 2021-03-19 | 2021-07-23 | 周洪喜 | Liquid crystal membrane, preparation method thereof and device for preparing liquid crystal membrane |
| CN113156716B (en) * | 2021-03-19 | 2022-04-05 | 周洪喜 | Liquid crystal membrane, preparation method thereof and device for preparing liquid crystal membrane |
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