CN101840104B - Liquid crystal light valve having high contrast and quick response - Google Patents
Liquid crystal light valve having high contrast and quick response Download PDFInfo
- Publication number
- CN101840104B CN101840104B CN2010101649567A CN201010164956A CN101840104B CN 101840104 B CN101840104 B CN 101840104B CN 2010101649567 A CN2010101649567 A CN 2010101649567A CN 201010164956 A CN201010164956 A CN 201010164956A CN 101840104 B CN101840104 B CN 101840104B
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- light valve
- contrast
- biaxial film
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 124
- 210000002858 crystal cell Anatomy 0.000 claims abstract description 27
- 239000000758 substrate Substances 0.000 claims description 32
- 239000011521 glass Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000005357 flat glass Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 238000001723 curing Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004988 Nematic liquid crystal Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920005575 poly(amic acid) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001029 thermal curing Methods 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The invention belongs to optical switch devices and particularly relates to a liquid crystal light valve having high contrast and quick response. The light valve comprises two polaroids, two biaxial films and a liquid crystal cell, wherein the two polaroids are respectively a polarizer and an analyzer; and the polarizer, the first biaxial film, the liquid crystal cell, the second biaxial film and the analyzer are sequentially arranged, so that light can sequentially pass through the polarizer, the first biaxial film, the liquid crystal cell, the second biaxial film and the analyzer. The liquid crystal molecules in the thickness direction of a liquid crystal layer have the orientation of up-and-down symmetry in the invention, thus meeting the requirement for response speed; the two biaxial films are used for compensating and optimizing the azimuth angles of the compensation film and the polaroids, thus increasing the contrast; and the response time of the liquid crystal light valve reaches 1.5ms, the maximum contrast thereof reaches 2,200, the azimuth angles in horizontal and vertical directions in the area where the contrast is higher than 1,000 are larger than 20 degrees, and those in horizontal and vertical directions in the area where the contrast is higher than 100 are close to 50 degrees.
Description
Technical field
The invention belongs to optical switch device; Be particularly related to a kind of high-contrast and the liquid crystal light valve that responds fast, utilize crooked (Optical Compensated Bend:OCB) the mode liquid crystal box of an optics self compensation, two biaxial film and two polaroids to realize the optical switch effect.
Background technology
Liquid crystal light valve (Liquid Crystal Light Valve) is called for short (LCLV), is a kind of spatial light modulator with real-time function that utilizes liquid crystal that the modulating characteristic of light is made.It can be widely used in modern high technology fields such as photometry calculation, pattern-recognition, information processing, demonstration, has a extensive future.Because light inlet write by liquid crystal light valve and to read light independent mutually, can convert incoherent light into coherent light easily, therefore in the coherent light real time processing system, the liquid crystal light valve device that is absolutely necessary.Liquid crystal light valve can also increase the energy of reading light simultaneously, realize that the energy of weak image amplifies, so it is widely used in also in the Projection Display of giant-screen, high brightness.
Traditional liquid crystal light valve adopts the twisted nematic liquid crystal box more; Response time is tens milliseconds, and contrast can reach about 200, if be applied to Projection Display in; Only demonstrating literal and black and white picture then can satisfy the demand; If but be used for demonstrating coloury photo and displaying video animation then preferably select 1000: 1 above height to degree projector, and the response time is short more good more, and similar ghost or dilatory vestige just can not appear in the user when seeing mobile picture.The liquid crystal light valve of using the making of twisted nematic liquid crystal box so just can not meet the demands.
Summary of the invention
The objective of the invention is to solve the contrast of traditional liquid crystal light valve and the problem of response time, a kind of high-contrast and the liquid crystal light valve that responds fast are provided.The present invention adopts the ocb mode liquid crystal box with quick features of response; Through the OCB box being carried out the film compensation and optimizing; Realized the response time of 1.5ms; Maximum-contrast reaches 2200, and contrast is that the zone more than 1000 surpasses 20 ° in the horizontal and vertical directions, and contrast is that zone more than 100 is in the horizontal and vertical directions near 50 °.
Technical solution of the present invention is following:
A kind of high-contrast and the quick liquid crystal light valve of response, its structure comprises: two polaroids, two biaxial film and liquid crystal cell, wherein two polaroids are respectively the polarizer and analyzer; Its position relation is followed successively by: the polarizer, first biaxial film, liquid crystal cell, second biaxial film and analyzer, light rays is through the polarizer, first biaxial film, liquid crystal cell, second biaxial film and analyzer.
Described two polaroids all are to adopt the high-polarization polaroid.
The refractive index parameter of described two biaxial film is the same, is: Nx=1.5827, Ny=1.581, Nz=1.5799.Two biaxial film thickness are in 49～57 mu m ranges.
Described liquid crystal cell is the liquid crystal cell of ocb mode, comprising: glass substrate, tin indium oxide (ITO) electrode, oriented layer, liquid crystal material, envelope frame adhesive and spherical resin powder; Its position relation is: outermost layer is two sheet glass substrates, and the glass substrate inside surface is an electrode, is oriented layer more inwards; The centre is liquid crystal material and sept, and during making alive, liquid crystal material is not arranged along the oriented layer direction that friction is good in advance; It is the antiparallel arrangement of liquid crystal molecule; Liquid crystal molecule is the bend alignment structure when adding low-voltage, and arrange on liquid crystal molecule vertical substrate surface when adding high voltage, and the liquid crystal cell of this pattern has the characteristics of quick response.
Described two glass substrates rely on the glue bond of edge sealing frame together, in liquid crystal, place the thickness of controlling liquid crystal layer with the spherical resin powder of required thickness of liquid crystal layer coupling.
Described envelope frame adhesive is formed enclosure space with layer glass substrate up and down between the layer glass substrate.
The thickness of described liquid crystal layer is 4 μ m, liquid crystal material parameter: ε
//=18.6, ε
⊥=3.5, n
o=1.5, Δ n=0.2, K
11=12.9pN, K
33=17.3pN, γ
1=0.134Pas, the border strong anchoring, the pre-dumping angle of two substrates place liquid crystal is respectively 5 ° and 175 ° up and down.
The method for making of high-contrast recited above and the liquid crystal light valve that responds fast, its step is following:
Step 1 etches electrode pattern;
Step 2, oriented layer coating and curing;
Step 3, the oriented layer friction;
Step 4, lower glass substrate spray spherical resin powder, top glass substrate printing envelope frame adhesive;
Step 5, last lower glass substrate are fitted and with the adhesive curing of edge sealing frame;
The present invention compared with prior art has following beneficial effect;
The characteristics of the liquid crystal light valve of the present invention's design are to use the ocb mode liquid crystal box; Ocb mode is owing to liquid crystal molecule on the thickness of liquid crystal layer direction has laterally zygomorphic orientation; So the electrooptics response speed is high, therefore be applied in the requirement that can reach response speed in the liquid crystal light valve; Liquid crystal cell has two biaxial film to compensate in addition, and the position angle of compensate film and polaroid is optimized to improve its contrast.Can reach 1.5ms through the response time of optimizing later ocb mode liquid crystal light valve like this; Maximum-contrast reaches 2200; Contrast is that the zone more than 1000 surpasses 20 ° in the horizontal and vertical directions, and contrast is that zone more than 100 is in the horizontal and vertical directions near 50 °.
Description of drawings
Fig. 1 is the liquid crystal light valve contour structures synoptic diagram of high-contrast of the present invention, quick response.
Fig. 2 is the structural representation of liquid crystal cell in high-contrast of the present invention, the quick liquid crystal light valve that responds.
Fig. 3 is that the liquid crystal molecule in the ocb mode liquid crystal box is not powering up, adding low-voltage and increasing the arrangement synoptic diagram under the voltage condition respectively.
Fig. 4 is the contrast visual angle figure of the liquid crystal light valve of high-contrast of the present invention, quick response.
Fig. 5 is a high-contrast of the present invention, the response time of the liquid crystal light valve of response schemes fast.
Embodiment
The method for making of high-contrast of the present invention and the liquid crystal light valve that responds fast, make according to following steps:
Step 1 etches electrode pattern.
Elder generation's coated feel optical cement on the ITO electro-conductive glass; (lithography mask version is on film, to process the black corresponding with electrode pattern to cover lithography mask version again; The clear area photoresist is reacted) under the effect of light; Shine through ultraviolet light then, the ITO electrode layer is carried out the selective chemical corrosion, thereby on the ITO electro-conductive glass, obtain and the complete graph of a correspondence of mask.
Step 2, oriented layer coating and curing.
On the good ITO electro-conductive glass of etching, be coated with alignment agent (polyamic acid solution), form uniform rete.Preliminary drying makes it volatilization with the heating of the solvent in the oriented material solution then, stays the oriented material rete of solid, solidifies 1～2 hour down at 300～350 ℃ then, and dehydration closed-loop generates polyimide film, has so just formed needed alignment films.
Step 3, the oriented layer friction.
On alignment films with flannelette to a direction friction; Liquid crystal molecule in the liquid crystal layer will be arranged in parallel according to the direction of friction; So just can obtain consistent orientation and the needed inclination angle of this liquid crystal light valve, the pre-dumping angle of two substrates place liquid crystal is respectively 5 ° and 175 ° up and down.
Step 4, it is the spherical resin powder of 4 μ m that lower glass substrate is sprayed diameter, top glass substrate printing envelope frame adhesive and conducting resinl.
On lower glass substrate, spray the spherical resin powder with duster; Form more evenly and distribute; Control the spacing between two glass substrates; Adopt method for printing screen to come silk-screen frame adhesive and conductiving point glue on the top glass substrate, be used for controlling the size of made liquid crystal light valve and the public electrode between the conducting upper and lower base plate.
Step 5, last lower glass substrate are fitted and with the adhesive curing of edge sealing frame.
On the contraposition make-up machine, will go up lower glass substrate and carry out the contraposition applying, and use thermal curing methods about 200 ℃, frame adhesive to be solidified, form the liquid crystal sylphon.
Sylphon is placed in the liquid crystal filling confined chamber that vacuumizes, and the gas in the box is extracted out by sealing part, makes filling orifice (breach of sealed frame) contact liquid crystal then, liquid crystal material parameter: ε
//=18.6, ε
⊥=3.5, n
o=1.5, Δ n=0.2, K
11=12.9pN, K
33=17.3pN, γ
1=0.134Pas.Utilize capillarity, just can most of volume of sylphon be injected liquid crystal material, to the indoor inert gases such as fully dry argon gas of process and nitrogen that charge into of liquid crystal filling, utilize the pressure of inert gas to make liquid crystal material be full of liquid crystal cell fully again.Adopt that fluid sealant is bonding to seal, through freezing method, let sealing compound shrink rightly to bring into seal in, solidify with UV-irradiation again.
Some sealing compounds, liquid crystal and other dirt removals of liquid crystal cell remained on surface fallen in frictioning and cleaning.Just can fit biaxial compensation film and two polaroids then.The refractive index parameter of biaxial compensation film is: Nx=1.5827, and Ny=1.581, Nz=1.5799, the thickness of two biaxial film are at 49～57 mu m ranges.Polaroid adopts the high-polarization polaroid, the SKN-18243T that Polatechno company produces.Position angle according to biaxial film 1 is-88 °, and the position angle of biaxial film 2 is-88 °, and the position angle of the polarizer is-2 °, and the position angle of analyzer is 88 ° of fit two biaxial compensation films and two polaroids.
Obtain this high-contrast and the liquid crystal light valve that responds fast at last.
It is known technology that above method for making is not stated content, specifically can be with reference to " the liquid crystal device technology basis " of being published by publishing house of Beijing University of Post & Telecommunication, model will is newly write.
The contour structures of the liquid crystal light valve that the present invention makes is as shown in Figure 1, and light rays is through the polarizer 1, first biaxial film 2, liquid crystal cell 3, second biaxial film 4, analyzer 5.The structure of liquid crystal cell is as shown in Figure 2; Outermost layer is a glass substrate 6; The glass substrate inside surface is an electrode 7, is oriented layer 8 more inwards, and inside is that liquid crystal material 9 is arranged along the good direction of oriented layer 8 friction in advance; Two glass substrates 6 rely on envelope frame glue 10 to bond together, and the spherical resin powder 11 of in liquid crystal, placing diameter and be 4 μ m is controlled the thickness of liquid crystal layer.Fig. 3 is that the liquid crystal molecule in the ocb mode liquid crystal box is not powering up, adding low-voltage and increasing the arrangement synoptic diagram under the voltage condition respectively.The not antiparallel arrangement of liquid crystal molecule during making alive is shown in Fig. 3 (a); Be that warp architecture is arranged when adding low-voltage, shown in Fig. 3 (b); Be that arrange on the vertical substrate surface when adding high voltage, shown in Fig. 3 (c).
The thickness of liquid crystal layer is 4 μ m, liquid crystal material (MLC-2136 that Merck company produces) parameter: ε
//=18.6, ε
⊥=3.5, n
o=1.5, Δ n=0.2, K
11=12.9pN, K
33=17.3pN, γ
1=0.134Pas.The border strong anchoring, the pre-dumping angle of two substrates place liquid crystal is respectively 5 ° and 175 ° up and down.The refractive index parameter of biaxial compensation film is: Nx=1.5827, and Ny=1.581, Nz=1.5799, the thickness of two biaxial film are at 49～57 mu m ranges.Two polaroids (being the polarizer and analyzer) all adopt high-polarization polaroid (SKN-18243T that Polatechno company produces).The position angle on liquid crystal layer plane is 45 °, and the position angle of the polarizer 1 is-2 °, and the position angle of analyzer 5 is 88 °, and the position angle of first biaxial film 2 is-88 °, and the position angle of second biaxial film 4 is-88 °.
Add low-voltage U earlier
1=1.2V, liquid crystal molecule are warp architecture and arrange, and this moment, liquid crystal cell was bright attitude, and corresponding transmitance is bright attitude transmitance.Then with low-voltage U
1=1.2V becomes high voltage U
2=14V, liquid crystal molecule arrange perpendicular to orientation substrate gradually, and this moment, the transmitance of liquid crystal cell reduced gradually, and final liquid crystal cell is dark attitude, and corresponding transmitance is dark attitude transmitance.Again with high voltage U
2=14V becomes low-voltage U
1Behind=the 1.2V, because the effect of the elastic force in the liquid crystal layer, liquid crystal molecule can change back to the bend alignment state again gradually, and this moment, the transmitance of liquid crystal cell increased gradually, and final liquid crystal cell shows as bright attitude again.Contrast can be represented with the bright attitude transmitance and the ratio of dark attitude transmitance.The contrast visual angle figure of this liquid crystal light valve can obtain with Mouse-LCD 2.6 software simulations, and is as shown in Figure 4, and curve representes successively that outside in contrast is 1,5,10,100 among the figure, 1000 zone.The result of simulation softward shows that maximum-contrast can reach 2200, and contrast is that the zone more than 1000 surpasses 20 ° in the horizontal and vertical directions, and contrast is that zone more than 100 is in the horizontal and vertical directions near 50 °.To it be the rise time from the timing definition that transmitance peaked 90% drops between 10%; The timing definition that rises between 90% from transmitance peaked 10% is fall time.The summation of rise time and fall time is defined as the response time.The response time figure of this liquid crystal light valve can obtain through analog computation, and is as shown in Figure 5.With low-voltage U
1=1.2V becomes high voltage U
2Behind=the 14V, the transmitance of liquid crystal cell can reduce gradually, shown in curve a.With high voltage U
2=14V becomes low-voltage U
1Behind=the 1.2V, the transmitance of liquid crystal cell increases gradually, shown in curve b.According to the definition of response time, can obtain from Fig. 5: the rise time is about 0.1ms, is about 1.4ms fall time, and overall response time is about 1.5ms, and this liquid crystal light valve satisfies the requirement of high-contrast and fast response liquid crystal light valve.
Fig. 4 and Fig. 5 are that the thickness according to two biaxial film all is that 50 μ m obtain; When thickness other data in 49～57 mu m ranges of two biaxial film obtain etc. contrast visual angle figure constant basically, the description of curve is also satisfied the result of these data among the figure.Response time also is the same.
The present invention does not address part and is applicable to prior art.
Claims (6)
1. the high-contrast and the liquid crystal light valve of response fast is characterized by this light valve and comprise: two polaroids, two biaxial film and liquid crystal cell, and wherein two polaroids are respectively the polarizer and analyzer; Its position relation is followed successively by: the polarizer, first biaxial film, liquid crystal cell, second biaxial film and analyzer, and light rays is through the polarizer, first biaxial film, liquid crystal cell, second biaxial film and analyzer;
Wherein, the refractive index parameter of described two biaxial film is the same, is: Nx=1.5827, and Ny=1.581, Nz=1.5799, two biaxial film thickness all are in 49～57 mu m ranges.
2. the high-contrast and the quick liquid crystal light valve of response according to claim 1, it is characterized by described two polaroids all is to adopt the high-polarization polaroid.
3. the high-contrast and the liquid crystal light valve of response according to claim 1 fast is characterized by the liquid crystal cell that described liquid crystal cell is an ocb mode, comprising: glass substrate, tin indium oxide (ITO) electrode, oriented layer, liquid crystal material, envelope frame adhesive and spherical resin powder; Its position relation is: outermost layer is two sheet glass substrates, and the glass substrate inside surface is an electrode, is oriented layer more inwards, and the centre is liquid crystal material and sept.
4. like said high-contrast of claim 3 and the liquid crystal light valve that responds fast, it is characterized by described two glass substrates and rely on the glue bond of edge sealing frame together, in liquid crystal, place the thickness of controlling liquid crystal layer with the spherical resin powder of required thickness of liquid crystal layer coupling.
5. like the said high-contrast of claim 3 and the quick liquid crystal light valve of response, it is characterized by described envelope frame adhesive between the layer glass substrate, form enclosure space with layer glass substrate up and down.
6. like said high-contrast of claim 4 and the liquid crystal light valve that responds fast, the thickness that it is characterized by described liquid crystal layer is 4 μ m, liquid crystal material parameter: ε
//=18.6, ε
⊥=3.5, n
o=1.5, Δ n=0.2, K
11=12.9pN, K
33=17.3pN, γ
1=0.134Pas, the border strong anchoring, the pre-dumping angle of two substrates place liquid crystal is respectively 5 ° and 175 ° up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101649567A CN101840104B (en) | 2010-05-07 | 2010-05-07 | Liquid crystal light valve having high contrast and quick response |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101649567A CN101840104B (en) | 2010-05-07 | 2010-05-07 | Liquid crystal light valve having high contrast and quick response |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101840104A CN101840104A (en) | 2010-09-22 |
| CN101840104B true CN101840104B (en) | 2012-03-21 |
Family
ID=42743575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101649567A Expired - Fee Related CN101840104B (en) | 2010-05-07 | 2010-05-07 | Liquid crystal light valve having high contrast and quick response |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101840104B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102902105B (en) * | 2012-11-06 | 2015-07-01 | 深圳市华星光电技术有限公司 | Compensation system for liquid crystal panel and liquid crystal display device |
| CN102944954B (en) * | 2012-11-21 | 2015-11-25 | 深圳市华星光电技术有限公司 | For bucking-out system and the liquid crystal indicator of liquid crystal panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745331A (en) * | 2003-01-28 | 2006-03-08 | Lg化学株式会社 | Bi-axial retardation compensation film and vertically aligned liquid crystal display using the same |
| CN1918508A (en) * | 2004-02-13 | 2007-02-21 | 东芝松下显示技术有限公司 | Liquid crystal display device |
| CN1979288A (en) * | 2005-12-09 | 2007-06-13 | 群康科技(深圳)有限公司 | Liquid crystal displaying device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0784254A (en) * | 1993-09-18 | 1995-03-31 | Tatsuo Uchida | Liquid crystal display element for wide visual field angle and high-speed display |
| US7006184B2 (en) * | 2002-04-12 | 2006-02-28 | Eastman Kodak Company | Bend aligned namatic liquid crystal imaging display with compensation film |
| CN201707522U (en) * | 2010-05-07 | 2011-01-12 | 河北工业大学 | High contrast and fast response liquid crystal light valve |
-
2010
- 2010-05-07 CN CN2010101649567A patent/CN101840104B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1745331A (en) * | 2003-01-28 | 2006-03-08 | Lg化学株式会社 | Bi-axial retardation compensation film and vertically aligned liquid crystal display using the same |
| CN1918508A (en) * | 2004-02-13 | 2007-02-21 | 东芝松下显示技术有限公司 | Liquid crystal display device |
| CN1979288A (en) * | 2005-12-09 | 2007-06-13 | 群康科技(深圳)有限公司 | Liquid crystal displaying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101840104A (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104460169B (en) | Electrode plate, electrochromism plate, EC mirror and its display device | |
| CN101957521B (en) | High-contrast liquid crystal electronic paper displayer and manufacturing method thereof | |
| TWI472983B (en) | Touch device having color-variable frame and touch display device including the same | |
| Sakurai et al. | 68.2: Color and Flexible Electronic Paper Display using QR‐LPD® Technology | |
| CN107121854A (en) | Display panel and its manufacture method, display device | |
| CN105974683B (en) | Liquid crystal display panel and preparation method thereof | |
| TW200527082A (en) | Liquid crystal display device | |
| CN206133141U (en) | LCD and assembly device , has this LCD's electronic equipment thereof | |
| CN201707522U (en) | High contrast and fast response liquid crystal light valve | |
| CN104317090A (en) | Bi-stable state liquid crystal light valve and operation method thereof | |
| CN101852942B (en) | Total-reflection liquid crystal display | |
| CN101840104B (en) | Liquid crystal light valve having high contrast and quick response | |
| CN101989013B (en) | Visual angle controllable liquid crystal display | |
| CN101840107A (en) | Liquid crystal light valve (LCLV) with wide visual angle, high contrast ratio and rapid response | |
| CN101840106B (en) | Liquid crystal light valve and its manufacture method | |
| CN201707523U (en) | High-contrast and fast-response liquid crystal light valve | |
| CN201707525U (en) | Liquid crystal light valve with wide-viewing angle, high contrast and quick response | |
| CN111552107B (en) | Optical film, preparation method and application of optical film | |
| CN201707524U (en) | Liquid crystal light valve with wide viewing angle, high contrast and fast response | |
| CN101840105A (en) | High-contrast fast-response liquid crystal light valve | |
| CN101976006B (en) | Low-threshold-voltage and fast-response IPS-VA (In-Plane Switching-Vertical Alignment) liquid crystal display | |
| JP2835787B2 (en) | Ferroelectric liquid crystal device | |
| CN207833802U (en) | Display screen and electronic equipment | |
| CN105425329B (en) | A kind of polaroid and preparation method thereof, display panel and display device | |
| CN201853035U (en) | Liquid crystal display with visual angle being controlled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Fengying Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Yubao Inventor after: Shan Aixian Inventor before: Shan Aixian Inventor before: Sun Yubao |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: DAN AIXIAN SUN YUBAO TO: SUN YUBAO DAN AIXIAN |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20160507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |