[go: up one dir, main page]

CN101840105A - High-contrast fast-response liquid crystal light valve - Google Patents

High-contrast fast-response liquid crystal light valve Download PDF

Info

Publication number
CN101840105A
CN101840105A CN 201010164968 CN201010164968A CN101840105A CN 101840105 A CN101840105 A CN 101840105A CN 201010164968 CN201010164968 CN 201010164968 CN 201010164968 A CN201010164968 A CN 201010164968A CN 101840105 A CN101840105 A CN 101840105A
Authority
CN
China
Prior art keywords
liquid crystal
wave plate
light valve
contrast
crystal light
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.)
Pending
Application number
CN 201010164968
Other languages
Chinese (zh)
Inventor
单艾娴
孙玉宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei University of Technology
Original Assignee
Hebei University of Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hebei University of Technology filed Critical Hebei University of Technology
Priority to CN 201010164968 priority Critical patent/CN101840105A/en
Publication of CN101840105A publication Critical patent/CN101840105A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Liquid Crystal (AREA)

Abstract

The invention belongs to optical switch devices, and particularly relates to a high-contrast fast-response liquid crystal light valve. The high-contrast fast-response liquid crystal light valve comprise two polaroids, an -a wave plate, a -c wave plate, an +a wave plate and a liquid crystal box, wherein the two polaroids respectively are a polarizer and an analyzer, the components are in the position relation of the polarizer, the -a wave plate, the -c wave plate, the liquid crystal box, the +a wave plate and the analyzer in sequence, and light passes through the polarizer, the -a wave plate, the -c wave plate, the liquid crystal box, the +a wave plate and the analyzer in sequence. The liquid crystal box is an OCB mode liquid crystal box; liquid crystal molecules has the orientation of vertical symmetry in the thickness direction of a liquid crystal layer; the liquid crystal box uses one -c wave plate, one +a wave plate and one -a wave plate as compensation films; and therefore, the optimized OCB mode liquid crystal light valve can achieve response time of 1.8 ms, maximum contrast of 2300, more than 20 degrees of an area with the contrast above 1000 in horizontal and vertical directions, and about 40 degrees of an area with the contrast above 100 in horizontal and vertical directions.

Description

High-contrast and the liquid crystal light valve that responds fast
Technical field:
The invention belongs to optical switch device, the liquid crystal light valve that is particularly related to a kind of high-contrast and responds fast utilizes an optics self compensation bending (Optical Compensated Bend:OCB) mode liquid crystal box, one+a wave plate, one-c wave plate, one-a wave plate 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 it is independent mutually that liquid crystal light valve is write light inlet and read light, can be converted to coherent light to incoherent 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, 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, the liquid crystal light valve that a kind of high-contrast is provided and responds fast.The present invention adopts the ocb mode liquid crystal box with quick features of response, by the OCB box being carried out the film compensation and optimizing, realized the response time of 1.8ms, maximum-contrast reaches 2300, 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 40 °.
Technical solution of the present invention is as follows:
A kind of high-contrast and the liquid crystal light valve that responds fast, its structure comprises: two polaroids ,-a wave plate ,-the c wave plate ,+a wave plate and liquid crystal cell, wherein two polaroids are respectively the polarizer and analyzer, its position relation be followed successively by the polarizer ,-a wave plate ,-c wave plate, liquid crystal cell ,+a wave plate and analyzer, light successively by the polarizer ,-a wave plate ,-c wave plate, liquid crystal cell ,+a wave plate and analyzer;
Described two polaroids all are to adopt the high-polarization polaroid.
In the described wave plate ,+a wave plate birefraction is 0.0092 (589nm) ,-a wave plate ,-c wave plate birefraction all is-0.0092 (589nm).-c wave plate thickness is in 27～35 mu m ranges.The thickness of-a wave plate is in 10～11 mu m ranges, and the thickness of+a wave plate is in 8～10 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 followed successively by: outermost layer is two sheet glass substrates, the glass substrate inside surface is an electrode, be 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, place the thickness of controlling liquid crystal layer with the spherical resin powder of required thickness of liquid crystal layer coupling in liquid crystal.
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 the liquid crystal light valve of high-contrast recited above and quick response, its step is as follows:
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;
Step 6, the perfusion liquid crystal material also seals;
Step 7, cleaning glass surface and applying+a wave plate ,-the c wave plate ,-a wave plate, and the polarizer and analyzer, the liquid crystal light valve that obtains this high-contrast at last and respond fast.
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 therefore electrooptics response speed height is applied in the requirement that can reach response speed in the liquid crystal light valve; Liquid crystal cell uses one-c wave plate, one+a wave plate and one-a wave plate film by way of compensation in addition, and the position angle of compensate film and polaroid is optimized to improve its contrast.Can reach 1.8ms through the response time of optimizing later ocb mode liquid crystal light valve like this, maximum-contrast reaches 2300, 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 40 °.
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 a liquid crystal cell structure synoptic diagram 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 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 the liquid crystal light valve of a kind of high-contrast and quick response, make according to following steps:
Step 1 etches electrode pattern;
Earlier on the ITO electro-conductive glass, apply photoresists, (lithography mask version is to make the black corresponding with electrode pattern on film to cover lithography mask version again, the clear area photoresist is reacted) under the effect of light, shine by 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, use 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;
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.
Step 6, the perfusion liquid crystal material also seals;
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 most of volume of sylphon can 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, by freezing method, allow sealing compound shrink rightly to bring into seal in, solidify with UV-irradiation again.
Step 7, clean glass surface and according to given angle applying+a wave plate ,-the c wave plate ,-a wave plate and two polaroids (being the polarizer and analyzer).
Some sealing compounds, liquid crystal and other dirt removals of liquid crystal cell remained on surface fallen in frictioning and cleaning.Just can fit then+a wave plate ,-the c wave plate ,-a wave plate and two polaroids.+ a wave plate birefraction is 0.0092 (589nm) ,-a wave plate ,-c wave plate birefraction is-0.0092 (589nm), and the position angle of-c wave plate is 0 °, and thickness is in 27～35 mu m ranges.The thickness of-a wave plate is in 10～11 mu m ranges, and the thickness of+a wave plate is in 8～10 mu m ranges.Polaroid adopts the high-polarization polaroid, the SKN-18243T that Polatechno company produces.Position angle according to the polarizer is-2.4 °, the position angle of analyzer is 87.6 °, the position angle of-a wave plate is 1.7 °, and the position angle of+a wave plate is-88.2 ° of fit two biaxial compensation films and two polaroids, the liquid crystal light valve that obtains this high-contrast at last and respond fast.
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 " by publishing house of Beijing University of Post ﹠ Telecommunication publishes, model will is newly write.
The contour structures of the liquid crystal light valve that the present invention makes as shown in Figure 1, light successively by the polarizer 1 ,-a wave plate 2 ,-c wave plate 3, liquid crystal cell 4 ,+a wave plate 5, analyzer 6.The structure of liquid crystal cell as shown in Figure 2, outermost layer is a glass substrate 7, the glass substrate inside surface is an electrode 8, be oriented layer 9 more inwards, inside is that liquid crystal material 10 is arranged along the good direction of oriented layer 9 friction in advance, two glass substrates 7 rely on envelope frame glue 11 to bond together, and the spherical resin powder 12 of placing diameter and be 4 μ m in liquid crystal 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 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.+ a wave plate birefraction is 0.0092 (589nm) ,-a wave plate ,-c wave plate birefraction is-0.0092 (589nm), and the thickness of-a wave plate is in 10～11 mu m ranges, and the thickness of+a wave plate is in 8～10 mu m ranges.The position angle of-c wave plate is 0 °, and thickness is in 27～35 mu m ranges.The SKN-18243T that two polaroids (being the polarizer and analyzer) all adopt high-polarization polaroid Polatechno company to produce.The position angle on liquid crystal layer plane is 45 °, and the position angle of the polarizer 1 is-2.4 °, and the position angle of analyzer 6 is 87.6 °, and the position angle of-a wave plate 2 is 1.7 °, and the position angle of+a wave plate 5 is-88.2 °.
Add low-voltage U earlier 1=1V, 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=1V becomes high voltage U 2=13.5V, 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=13.5V becomes low-voltage U 1During=1V, 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 the Mouse-LCD2.6 software simulation, and as shown in Figure 4, curve represents 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 2300, 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 40 °.The timing definition that will drop between 10% from transmitance peaked 90% is the rise time; 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 by analog computation, as shown in Figure 5.With low-voltage U 1=1V becomes high voltage U 2Behind=the 13.5V, the transmitance of liquid crystal cell can reduce gradually, shown in curve a.With high voltage U 2=13.5V becomes low-voltage U 1Behind=the 1V, 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 1.7ms fall time, and overall response time is about 1.8ms.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 of basis-c wave plate is 30 μ m ,-a wave plate and+thickness of a wave plate all is that 10 μ m obtain.When-the c wave plate thickness is in 27～35 mu m ranges, the thickness of-a wave plate is in 10～11 mu m ranges, the thickness of+a wave plate other data in 8～10 mu m ranges obtain etc. contrast visual angle figure constant substantially, 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 (8)

1.一种高对比度和快速响应的液晶光阀，其特征为该光阀包括：两个偏光片、-a波片、-c波片、+a波片和液晶盒，其中两个偏光片分别为起偏器和检偏器，其位置关系依次为起偏器、-a波片、-c波片、液晶盒、+a波片和检偏器，光线依次通过起偏器、-a波片、-c波片、液晶盒、+a波片和检偏器。1. A high-contrast and fast-response liquid crystal light valve is characterized in that the light valve includes: two polarizers, -a wave plate, -c wave plate, +a wave plate and a liquid crystal box, wherein two polarizers They are polarizer and analyzer respectively, and their positional relationship is polarizer, -a wave plate, -c wave plate, liquid crystal cell, +a wave plate and analyzer in turn, and the light passes through polarizer, -a wave plate in turn Wave plate, -c wave plate, liquid crystal cell, +a wave plate and analyzer. 2.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的两个偏光片都是采用高偏振度偏光片。2. The high-contrast and fast-response liquid crystal light valve as claimed in claim 1, characterized in that the two polarizers are polarizers with a high degree of polarization. 3.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的波片中，+a波片双折射率为0.0092(589nm)，-a波片、-c波片双折射率都是-0.0092(589nm)。-c波片厚度是在27～35μm范围内。-a波片的厚度在10～11μm范围内，+a波片的厚度在8～10μm范围内。3. The liquid crystal light valve of high contrast and quick response as claimed in claim 1 is characterized in that in the described wave plate, +a wave plate birefringence is 0.0092 (589nm),-a wave plate,-c wave plate The birefringence is both -0.0092 (589nm). - The thickness of the c wave plate is in the range of 27-35 μm. The thickness of the -a wave plate is in the range of 10-11 μm, and the thickness of the +a wave plate is in the range of 8-10 μm. 4.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的液晶盒是OCB模式的液晶盒，包括：玻璃基板、氧化铟锡(ITO)电极、取向层、液晶材料、封边框胶和球形树脂粉；其位置关系依次为：最外层为两片玻璃基板，玻璃基板内表面为电极，再向里是取向层，中间为液晶材料和间隔物。4. The liquid crystal light valve of high contrast and quick response as claimed in claim 1 is characterized in that described liquid crystal cell is the liquid crystal cell of OCB mode, comprises: glass substrate, indium tin oxide (ITO) electrode, alignment layer, liquid crystal Materials, bezel sealant and spherical resin powder; the positional relationship is as follows: the outermost layer is two glass substrates, the inner surface of the glass substrate is an electrode, and the inner surface is an alignment layer, and the middle is a liquid crystal material and a spacer. 5.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的两玻璃基板依靠封边框胶粘结在一起，在液晶内放置与所需液晶层厚度匹配的球形树脂粉来控制液晶层的厚度。5. The high-contrast and fast-response liquid crystal light valve as claimed in claim 1, characterized in that the two glass substrates are bonded together by sealing frame glue, and a spherical resin matching the thickness of the required liquid crystal layer is placed in the liquid crystal powder to control the thickness of the liquid crystal layer. 6.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的封边框胶在两层玻璃基板之间，与上下两层玻璃基板组成封闭空间。6. The high-contrast and fast-response liquid crystal light valve as claimed in claim 1, characterized in that said bezel sealant is between two layers of glass substrates, forming a closed space with the upper and lower layers of glass substrates. 7.如权利要求1所述高对比度和快速响应的液晶光阀，其特征为所述的液晶层的厚度是4μm，液晶材料参数：ε//＝18.6，ε⊥＝3.5，no＝1.5，Δn＝0.2，K11＝12.9pN，K33＝17.3pN，γ1＝0.134Pas，边界强锚定，上下两基板处液晶的预倾角度分别为5°和175°。7. The high-contrast and fast-response liquid crystal light valve as claimed in claim 1, characterized in that the thickness of the liquid crystal layer is 4 μm, and the liquid crystal material parameters: ε // =18.6, ε ⊥ =3.5, n o =1.5 , Δn=0.2, K 11 =12.9pN, K 33 =17.3pN, γ 1 =0.134Pas, the boundary is strongly anchored, and the pretilt angles of the liquid crystals at the upper and lower substrates are 5° and 175° respectively. 8.如权利要求1所述高对比度和快速响应的液晶光阀的制作方法，其特征为步骤如下：8. the manufacture method of the liquid crystal light valve of high contrast and quick response as claimed in claim 1, it is characterized in that the steps are as follows: 步骤1，刻蚀出电极图形；Step 1, etching out the electrode pattern; 步骤2，取向层涂布及固化；Step 2, alignment layer coating and curing; 步骤3，取向层摩擦；Step 3, rubbing the alignment layer; 步骤4，下玻璃基板喷球形树脂粉，上玻璃基板印刷封边框胶；Step 4, spray spherical resin powder on the lower glass substrate, and print sealing frame glue on the upper glass substrate; 步骤5，上下玻璃基板贴合并将封边框胶固化；Step 5, attach the upper and lower glass substrates and cure the bezel sealant; 步骤6，灌注液晶材料并封口；Step 6, pouring liquid crystal material and sealing; 步骤7，清洗玻璃表面并贴合+a波片、-c波片、-a波片，以及起偏器和检偏器，最后得到该高对比度和快速响应的液晶光阀。Step 7, cleaning the glass surface and pasting the +a wave plate, -c wave plate, -a wave plate, polarizer and analyzer, and finally the liquid crystal light valve with high contrast and fast response is obtained.
CN 201010164968 2010-05-07 2010-05-07 High-contrast fast-response liquid crystal light valve Pending CN101840105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010164968 CN101840105A (en) 2010-05-07 2010-05-07 High-contrast fast-response liquid crystal light valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010164968 CN101840105A (en) 2010-05-07 2010-05-07 High-contrast fast-response liquid crystal light valve

Publications (1)

Publication Number Publication Date
CN101840105A true CN101840105A (en) 2010-09-22

Family

ID=42743576

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010164968 Pending CN101840105A (en) 2010-05-07 2010-05-07 High-contrast fast-response liquid crystal light valve

Country Status (1)

Country Link
CN (1) CN101840105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111367102A (en) * 2020-05-08 2020-07-03 康惠（惠州）半导体有限公司 Vertically-oriented liquid crystal light valve lens assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1118885A1 (en) * 1999-07-29 2001-07-25 Teijin Limited Phase difference film, phase difference film composite and liquid crystal display device using the same
JP2001350022A (en) * 2000-04-07 2001-12-21 Tatsuo Uchida Wide viewing angle polarizing plate
CN101091126A (en) * 2004-08-31 2007-12-19 日东电工株式会社 Retardation films for the elimination of leakage of light through cross polarizers in LCD
CN101432646A (en) * 2006-05-01 2009-05-13 三井化学株式会社 Method of compensating wavelength dependence of birefringence of optical part, optical part, and display obtained with these

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1118885A1 (en) * 1999-07-29 2001-07-25 Teijin Limited Phase difference film, phase difference film composite and liquid crystal display device using the same
JP2001350022A (en) * 2000-04-07 2001-12-21 Tatsuo Uchida Wide viewing angle polarizing plate
CN101091126A (en) * 2004-08-31 2007-12-19 日东电工株式会社 Retardation films for the elimination of leakage of light through cross polarizers in LCD
CN101432646A (en) * 2006-05-01 2009-05-13 三井化学株式会社 Method of compensating wavelength dependence of birefringence of optical part, optical part, and display obtained with these

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111367102A (en) * 2020-05-08 2020-07-03 康惠（惠州）半导体有限公司 Vertically-oriented liquid crystal light valve lens assembly

Similar Documents

Publication Publication Date Title
TW200527082A (en) Liquid crystal display device
US20190377207A1 (en) Patterned light-adjusting glass and preparation method thereof
CN206133141U (en) LCD and assembly device , has this LCD's electronic equipment thereof
WO2020107777A1 (en) Manufacturing method for liquid crystal display panel and liquid crystal display panel
CN113820895A (en) A pixelated dynamic holographic display device based on metasurface and its realization method
CN101840104A (en) Liquid crystal light valve having high contrast and quick response
CN201707522U (en) High contrast and fast response liquid crystal light valve
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
CN102819143B (en) Liquid crystal box and manufacture method thereof
CN101840105A (en) High-contrast fast-response liquid crystal light valve
CN202141877U (en) Liquid crystal display panel
CN107402477B (en) Display panel, preparation method thereof and display device
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
CN111552107B (en) Optical film, preparation method and application of optical film
JP2835787B2 (en) Ferroelectric liquid crystal device
CN103105688A (en) Multi-domain twisted nematic liquid crystal display
CN101976006B (en) Low-threshold-voltage and fast-response IPS-VA (In-Plane Switching-Vertical Alignment) liquid crystal display
US20170248818A1 (en) Display device, reflective display panel and reflective unit of the same
CN105425329B (en) A polarizer and preparation method thereof, display panel and display device
CN211123547U (en) Polarizer-free TN type liquid crystal display
CN201853036U (en) IPS-VA LCD with Low Threshold Voltage and Fast Response
JPS6057821A (en) Liquid-crystal display element
CN102033366B (en) Visual-angle-controllable patterned multi-domain vertical alignment (PMVA) liquid crystal display

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Sun Yubao

Inventor after: Dan Aixian

Inventor before: Dan 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

C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Open date: 20100922