Formed By Particular Technique (e.g., Langmuir Blodgett, Stretching, Etc.) Patents (Class 349/124)
  • Patent number: 8681304
    Abstract: Disclosed is a liquid crystal display device comprising a lower substrate, an upper substrate, and a liquid crystal layer interposed between the substrates and aligned in a predetermined rubbing direction, in which pixel regions are respectively defined by gate lines and data lines formed to intersect each other on the lower substrate, and a switching device is arranged in an intersecting portion of the gate line and the data line, the liquid crystal display device comprising: a lateral pattern portion formed on at least one side of the data line and formed zigzagging along an extending direction of the data line. With this, it is possible to effectively improve and prevent the rubbing defect that occurs in the stepped region of the data line during the rubbing process for alignment of liquid crystal.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Hae Jin Park, Won Chul Sin
  • Patent number: 8681300
    Abstract: A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a diamine component different from the diamine component of the polyamic acid. The alignment layer is subjected to alignment treatment by irradiation of light. UV light can be irradiated in the oblique direction onto the alignment layer through a mask having openings. A reflecting plate can be arranged between a UV light source and the mask. Also, bank structures having a thickness from 0.1 to 0.15 ?m can be provided on the alignment layer of the TFT substrate.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: March 25, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideo Chida, Hidefumi Yoshida, Yasutoshi Tasaka
  • Publication number: 20140078454
    Abstract: First alignment is performed by forming an alignment layer that includes a photopolymerizable monomer or oligomer on a substrate and the like, introducing liquid crystal, and bringing the liquid crystal into contact with the alignment layer including the photopolymerizable monomer or oligomer. The liquid crystal is then subjected to secondary alignment by photopolymerizing the photopolymerizable monomer or oligomer including the alignment layer to form an alignment regulator in a state in which an electric field is applied to the liquid crystal to hange the alignment of the liquid crystal.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 20, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jae-Hoon KIM
  • Publication number: 20140063425
    Abstract: A liquid crystal display (LCD) panel includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first rubbing alignment layer and a first photo-induced polymer alignment layer. The second substrate is disposed opposite to the first substrate, and includes a second photo-induced polymer alignment layer. The liquid crystal layer is disposed between the first and second substrates, and contacts the photo-induced polymer alignment layers.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: InnoLux Corporation
    Inventors: Yun-Chun LIOU, Heng-Yi CHANG, Ying-Ting CHEN, Wan-Ling HUANG, Wei-Chuan HUANG, Hung-Tse LIN, Chao-Lung CHIN, Kai-Neng YANG, Tsau-Hua HSIEH
  • Patent number: 8665414
    Abstract: Thermochromic liquid crystal filters are fabricated by providing two polarizers oriented at offset polarity with respect to each other; providing alignment structures adjacent the inner surfaces of the polarizers; placing a plurality of spacers between the polarizers; and filling a space created by the spacers with a thermotropic liquid crystal that acts as a depolarizer in a nematic state. The filter acts as a wave block when the liquid crystal is in an isotropic state. Alternatively, the filters can be created by encapsulating a thermochromic liquid crystal with a polymer material to form a flexible film and orienting the thermochromic liquid crystal in the polymer material to create a structure that functions as a thermochromic optical filter. Such filters can control the flow of light and radiant heat through selective reflection, transmission, absorption, and/or re-emission. The filters have particular application in passive or active light-regulating and temperature-regulating films and materials.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: March 4, 2014
    Assignee: RavenBrick LLC
    Inventors: Richard M. Powers, Wil McCarthy, Matthew Bryant Kish
  • Patent number: 8663745
    Abstract: Provided is a film-forming method based on an LB method by which a uniform alignment film using a helical polyacetylene can be obtained. The method based on the LB method includes: developing a helical polyacetylene onto a liquid surface; and transferring a monolayer film of the helical polyacetylene formed on the liquid surface onto a substrate to form a film, in which a compressibility P represented by the following formula (1) at a time of the film formation is 1×10?2 m/mN or less: P=(1/(dH/dS))×(1/S) (1), where H represents a surface pressure (mN/m) of the monolayer film of the helical polyacetylene, and S represents an area (m2) of the monolayer film of the helical polyacetylene developed onto the liquid surface.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: March 4, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Yano, Otto Albrecht, Kunihiro Mitsutake, Takeyuki Sone
  • Patent number: 8659738
    Abstract: A phase difference layer laminated body used in a three-dimensional liquid crystal display device, wherein unit cells are divided into groups for left and right eyes, which are given different degrees of polarization, thereby creating a three-dimensional image, further wherein the phase difference layer laminated body has a base material having orientability, and a phase difference layer made of a liquid crystal material that can form a nematic phase and formed in a pattern with two different portions, and the liquid crystal material in each of two different portions is oriented to have different refractive index anisotropy each other that conforms to the two different degrees of polarization and fixed as it is.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: February 25, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Keiji Kashima
  • Publication number: 20140049735
    Abstract: Embodiments of the present invention provide an array substrate, a liquid crystal display apparatus and an alignment rubbing method. The array substrate comprises a gate line, a data line, and a pixel unit defined by the gate line and the data line intersecting each other, as well as an alignment film formed on the array substrate. The pixel unit each comprises a thin film transistor, a first electrode, and a second electrode provided with slits; and a first non-zero preset angle is present between a slit-direction of the second electrode and a data-line-direction, a second non-zero preset angle is present between a rubbing direction of the alignment film and the slit-direction of the second electrode, and an angle between the rubbing direction of the alignment film and the data-line-direction is greater than the second non-zero preset angle.
    Type: Application
    Filed: October 10, 2012
    Publication date: February 20, 2014
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zailong Mo, Yuqing Yang, Tianlei Shi, Seung Yik Park
  • Patent number: 8654289
    Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Su-Hyun Park
  • Patent number: 8654288
    Abstract: A method for fabricating a liquid crystal display device includes providing an LCD panel that includes a photopolymerizable compound in its liquid crystal layer; and forming alignment sustaining layers by polymerizing the photopolymerizable compound in the liquid crystal layer of the LCD panel with the liquid crystal layer irradiated with light and supplied with a voltage simultaneously. The forming the alignment sustaining layers includes the steps of: i) applying a predetermined voltage between a pixel electrode and a counter electrode while a switching element is in ON state; and ii) changing the voltage at a storage capacitor counter electrode into a voltage, of which the polarity is opposite to a voltage at the storage capacitor counter electrode in the step i), after the switching element in ON state has been turned OFF.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Nagata, Junichi Yamada
  • Publication number: 20140028959
    Abstract: A liquid crystal composition includes a first compound represented by the following Chemical Formula 1 and a second compound represented by the following Chemical Formula 2. (herein, in Chemical Formula 1, R1 is an alkenyl group including a double bond and R2 is an alkyl group or an alkoxy group, and in Chemical Formula 2, R and R? are each independently an alkyl group or an alkoxy group).
    Type: Application
    Filed: November 27, 2012
    Publication date: January 30, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dong-Gi SEONG, Kyung Min Kim, Min-Jae Kim, Min-Hee Kim, Eun A Kim, Keun Chan Oh, Jin Hyeong Lee
  • Patent number: 8625064
    Abstract: Systems and methods for preparing films using sequential ion implantation, and films formed using same, are provided herein. A structure prepared using ion implantation may include a substrate; an embedded structure having pre-selected characteristics; and a film within or adjacent to the embedded structure and including ions having a perturbed arrangement arising from the presence of the embedded structure. The perturbed arrangement may include the ions being covalently bonded to each other, to the embedded structure, or to the substrate, whereas the ions instead may be free to diffuse through the substrate in the absence of the embedded structure. The embedded structure may inhibit or impede the ions from diffusing through the substrate, such that the ions instead covalently bond to each other, to the embedded structure, or to the substrate. The film may include, for example, diamond-like carbon, graphene, or SiC having a pre-selected phase.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: January 7, 2014
    Assignee: The Aerospace Corporation
    Inventors: Margaret H. Abraham, David P. Taylor
  • Patent number: 8610853
    Abstract: In a method of fabricating an optical element, an alignment surface is photolithographically patterned using a birefringent mask having a holographic pattern therein to create an alignment condition in the alignment surface based on the holographic pattern. A layer is formed on the alignment surface such that local optical axes of the layer are oriented according to the alignment condition in the alignment surface. For example, the layer may be a liquid crystal layer having respective molecular axes aligned according to the alignment condition. Related fabrication methods and polarization gratings are also discussed.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 17, 2013
    Assignee: North Carolina State University
    Inventor: Michael James Escuti
  • Publication number: 20130314631
    Abstract: A liquid crystal (LC) pixel, a method for providing an output thereof and a liquid crystal display device are provided. The LC pixel includes: a first electrode (5) having comb-like structures; an alignment layer (6) adjacent to the first electrode (5), wherein the alignment layer (6) is patterned with local areas that are different from the remaining area of the alignment layer (6) and wherein the local areas are configured to produce local defects in initial orientation in an LC layer (1) upon application of a control voltage; and the LC layer (1), configured to asymmetrically diffract light passing through the LC layer (1) based on configuration of the comb-like structures and the alignment layer (6).
    Type: Application
    Filed: February 10, 2012
    Publication date: November 28, 2013
    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Valentin Tsvetkov, Vladimir Grigorievich Chigrinov, Hoi Sing Kwok
  • Publication number: 20130314655
    Abstract: The present invention relates to liquid-crystalline media (LC media) comprising self-aligning additives which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional imide alignment layers. The LC media are optionally supplemented by a polymerisable or polymerised component, which serves for stabilisation of the alignment, for adjustment of the tilt angle and/or as passivation layer.
    Type: Application
    Filed: January 9, 2012
    Publication date: November 28, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Graziano Archetti, Andreas Taugerbeck
  • Patent number: 8593602
    Abstract: The present invention provides a production method of a liquid crystal display device, and an exposure device, which can inhibit the deterioration of display quality even when the aligning treatment of an alignment layer is performed using an optical alignment method. The present invention pertains to a production method of a liquid crystal display device in which an alignment layer is provided on a substrate and two or more domains are formed in each pixel of a display region by exposing the alignment layer, wherein the production method includes the exposure step of exposing the alignment layer through a photo mask in which a plurality of light-transmitting areas are located in a stripe pattern, and wherein the exposure step is a step of exposing the alignment layer continuously while the relative position of the photo mask with respect to the substrate is moved at the time of viewing a substrate surface from the front in substantially parallel with the light-transmitting area.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Koichi Miyachi
  • Patent number: 8592009
    Abstract: A liquid crystal display device superior in mass productivity and improved image quality with a higher contrast ratio by decreasing the occurrence of defective display due to the disorder of the initial liquid crystal alignment and realizing stable alignment of liquid crystals, comprising: a pair of substrates 101 and 102, at least one of which is transparent; a liquid crystal layer 110? disposed between the pair of substrates; a group of electrodes formed on at least one of the pair of substrates to apply an electric field to the liquid crystal layer; plural active elements 115 connected to the group of electrodes; and an orientation control film 109 disposed on at least one of the pair of substrates, wherein said orientation control film made of a photosensitive polyimide, a polyamide acid ester and a polyamide acid is given orientation control ability by being irradiated with substantially linearly polarized light.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: November 26, 2013
    Assignees: Hitachi Display, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masaki Matsumori, Yasushi Tomioka, Noboru Kunimatsu
  • Patent number: 8580357
    Abstract: A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: November 12, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masaki Matsumori, Yasushi Tomioka
  • Publication number: 20130293814
    Abstract: A liquid crystal display device includes: a pair of substrates, at least one of which is transparent; a liquid crystal layer placed between the pair of substrates; an electrode group, formed on at least one of the pair of substrates, for applying an electric field to the liquid crystal layer; and an alignment control film placed on at least one of the pair of substrates, in which the alignment control film is formed of polyimide and a precursor of the polyimide, each of the polyimide and the precursor of the polyimide contains, as a material, a specific cyclobutanetetracarboxylic acid dianhydride derivative and aromatic diamine, and the alignment control film is provided with alignment capability by photo-alignment treatment.
    Type: Application
    Filed: June 28, 2013
    Publication date: November 7, 2013
    Applicants: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., HITACHI DISPLAYS, LTD.
    Inventors: Masaki Matsumori, Yasushi Tomioka
  • Patent number: 8574689
    Abstract: There are provided an optical compensation film including an alignment film whose adhesiveness to a substrate and a liquid crystal layer and alignment property are excellent when a novel substrate is used to solve the problem regarding deteriorated durability being caused when a retardation film including a liquid crystal film is used under a hot and humid environment, and an integrated polarizing plate comprising the same. The O-plate includes a substrate; an alignment film prepared by coating the substrate with a composition for an alignment film that is composed of polyvinyl alcohol, a multifunctional acrylate monomer, a compatibilizing agent, a photo initiator and a solvent, followed by undergoing drying, curing and rubbing processes; and a splay-aligned liquid crystal film formed on the alignment film.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: November 5, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Du-Hyun Shin, Chang-Hun Yun, Byoung-Kun Jeon, Moon-Soo Park
  • Patent number: 8576358
    Abstract: The present invention relates to a polarization layer for an LCD and a manufacturing method thereof that improve light transmittance and polarization performance of a polarization layer by controlling a pre-tilt angle of an alignment layer. The manufacturing method of the present invention includes forming an alignment layer treated by inorganic alignment, forming a liquid crystal mixture including a dichroic dye, a liquid crystal monomer, a photo-initiator, and a gelator on the alignment layer, irradiating light to the liquid crystal mixture for photo-polymerizing it, and forming a color filter (CF) or a thin film transistor (TFT) on the polymerized and solidified liquid crystal mixture. Accordingly, the polarization layer manufactured by the present invention has the high light transmittance thereby increasing the polarization efficiency and realizing the liquid crystal display of high quality compared with the conventional polarization layer by the rubbing alignment.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: November 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon-Joon Rho, Baek-Kyun Jeon
  • Publication number: 20130286338
    Abstract: An LCD device includes first and second substrates, an alignment layer formed on at least one of the substrates, and a liquid crystal layer formed between the substrates, wherein the alignment layer is formed of a polymeric material containing a polymer main chain and a photo-reaction group combined with the polymer main chain that generates a photo-dimerization reaction by UV rays.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 31, 2013
    Inventor: Su Hyun Park
  • Patent number: 8570471
    Abstract: The present invention discloses a manufacturing method of an Optically Compensated Bend (OCB) liquid crystal panel, which comprises: an arranging step S1 for alternately arranging a plurality of thin-film transistor (TFT) substrates and a plurality of color filter (CF) substrates, the TFT substrates and the CF substrates are coated with optical alignment material; a light irradiating step S2 for using an ultraviolet (UV) light source to irradiate the TFT substrates and the CF substrates so that alignment films of predetermined alignment directions are formed by the optical alignment material on the TFT substrates and the CF substrates; and an attaching step S3 for attaching each of the TFT substrates and an adjacent one of the CF substrates in such a way that an alignment direction of the TFT substrate is the same as that of the corresponding CF substrate and filling an OCB liquid crystal layer therebetween to form a plurality of OCB liquid crystal panels.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: October 29, 2013
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Kuan-Cheng Lee, Xiaolong Ma
  • Publication number: 20130278853
    Abstract: The present invention provides a polymer stabilization alignment liquid crystal display panel having a plurality of pixel regions defined by plurals of data lines and gate lines. Each pixel region includes a main region and a sub region, and a first pixel electrode and a second pixel electrode correspond to the main region and the sub region respectively, wherein each of the data lines has a first width adjacent to the main display region and a second width adjacent to the sub display region, and the second width is larger than the first width. Each first pixel electrode is separated from the adjacent data line and thereby forming a gap therebetween. Each second pixel electrode partially overlaps the adjacent data line to form an overlap width. Accordingly, the present invention not only can increase the aperture ratio, but also well control the liquid crystal molecules located near the data lines.
    Type: Application
    Filed: June 14, 2013
    Publication date: October 24, 2013
    Inventors: CHIN-AN TSENG, CHIA-YU LEE, YEN-HENG HUANG, WEN-HSIEN TSENG, CHIA-HUI PAI, CHUNG-KAI CHEN, WEI-YUAN CHENG, TING-YI CHO
  • Patent number: 8564750
    Abstract: A method of preparing liquid crystal alignment films using an inkjet printer to control liquid crystal alignment is disclosed. The alignment ink is formulated from a single alignment material or combination of alignment materials to realize desired pretilt angle. The alignment films can be applied with designed patterns of alignment films of different pretilt angle on at least one substrate to achieve pattern-aligned liquid crystal devices.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: October 22, 2013
    Assignee: Kent State University
    Inventors: Liang-Chy Chien, Jeoung Yeon Hwang
  • Publication number: 20130271713
    Abstract: According to the present invention, provided is a liquid crystal display device in which a polymer layer having a stable alignment regulating force is formed.
    Type: Application
    Filed: October 14, 2011
    Publication date: October 17, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Isamu Miyake, Koichi Miyachi, Tatsuro Kato, Masakazu Shibasaki, Masahiro Shimizu, Kazuhito Matsumoto
  • Publication number: 20130265532
    Abstract: A liquid crystal display device and a method for manufacturing the same are disclosed. In an embodiment of the present invention, a liquid crystal display device and a method of manufacturing the liquid crystal display device includes a first substrate that has a first electrode formed thereon, a second substrate that faces the first substrate, a liquid crystal layer that is formed between the first substrate and the second substrate, and a first alignment layer that is formed on the first substrate and is in contact with the liquid crystal layer. Here, the first alignment layer includes a first alignment base layer that is photoaligned, and a first alignment controlling layer that is extended from the inside of the first alignment base layer.
    Type: Application
    Filed: May 22, 2013
    Publication date: October 10, 2013
    Inventor: Jae-Hoon KIM
  • Patent number: 8551581
    Abstract: A liquid crystal display includes: a first substrate and an opposing second substrate; an alignment layer formed on the first substrate and the second substrate; and a liquid crystal layer interposed between the first substrate and the second substrate. The alignment layer includes a copolymer including a dianhydride monomer and a diamine monomer.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 8, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho Yun Byun, Duck Jong Suh, Won-Gap Yoon, Na-Young Shin, Sang Hee Yu
  • Publication number: 20130235314
    Abstract: An object of the invention is to improve the accuracy of positioning a supplied thin-film material on a substrate surface. A region corresponding to a glass substrate in a mother glass is defined as a thin-film-formed region. An alignment mark is disposed outside the thin-film-formed region. The alignment mark serves as a position identifier for identifying a position where a droplet of a thin-film material (for example, a droplet of an alignment film material is to be dropped. The alignment mark includes a depression-protrusion shape in which a plurality of island-like depressions or protrusions are two-dimensionally arranged. In the depression-protrusion shape, a coordinate system indicating respective positions of the depressions or protrusions is defined. In a part of the depression-protrusion shape, a marking to which the alignment film material is fed is formed. The invention is applicable for example to a liquid crystal display device.
    Type: Application
    Filed: November 24, 2011
    Publication date: September 12, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Hiroyuki Moriwaki
  • Patent number: 8530008
    Abstract: A liquid crystal display (LCD) device includes at least one substrate; and an alignment layer over the substrate, wherein the alignment layer includes material having a main chain adapted to be aligned by a rubbing process and a photo-reactive side chain adapted to be aligned by irradiation.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: September 10, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Su Hyun Park
  • Publication number: 20130215367
    Abstract: The present invention provides a liquid crystal display device including a first substrate and a second substrate that are arranged to face each other while sandwiching liquid crystal, wherein: a first electrode and plural second electrodes are formed at a pixel area on the first substrate on the liquid crystal side; an alignment layer is provided which includes a first alignment layer formed on the first substrate on the liquid crystal side to cover the second electrodes and a second alignment layer formed on the first alignment layer on the liquid crystal side; the resistance of the second alignment layer is lower than that of the first alignment layer; and the transmittance of the second alignment layer is lower than that of the first alignment layer.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 22, 2013
    Applicant: JAPAN DISPLAY EAST INC.
    Inventor: JAPAN DISPLAY EAST INC.
  • Patent number: 8514357
    Abstract: A liquid crystal display device and a method for manufacturing the same are disclosed. In an embodiment of the present invention, a liquid crystal display device and a method of manufacturing the liquid crystal display device includes a first substrate that has a first electrode formed thereon, a second substrate that faces the first substrate, a liquid crystal layer that is formed between the first substrate and the second substrate, and a first alignment layer that is formed on the first substrate and is in contact with the liquid crystal layer. Here, the first alignment layer includes a first alignment base layer that is photoaligned, and a first alignment controlling layer that is extended from the inside of the first alignment base layer.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jae-Hoon Kim
  • Patent number: 8497001
    Abstract: A first substrate and a second substrate are provided. An alignment process is performed on a surface of the first substrate and a surface of the second substrate respectively. A liquid crystal mixture is prepared, where the liquid crystal mixture includes a liquid crystal molecule and a liquid crystal monomer having a functional group of diacrylates, and the liquid crystal monomer having the functional group of diacrylates occupies 0.01-2 wt % of the liquid crystal mixture. The first substrate and the second substrate are assembled, and the liquid crystal mixture is filled therebetween. A polymerization curing process is performed such that the liquid crystal monomer having the functional group of diacrylates is polymerized to respectively form a liquid crystal polymer film on the aligned surfaces of the first and second substrates. The method enhances anchoring energy and reduces problems of V-T shift, surface gliding, and residual image.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 30, 2013
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, Ltd., AU Optronics Corporation, Hannstar Display Corporation, Chi Mei Optoelectronics Corporation, Industrial Technology Research Institute
    Inventors: Cho-Ying Lin, Ding-Jen Chen, Hui-Min Lin, Yang-Ching Lin
  • Publication number: 20130188120
    Abstract: The present invention relates to a light-sensitive compound, a polymer formed by using the compound, and a production method of the compound and polymer. More particularly, the present invention relates to a unit compound that exhibits light-sensitivity with respect to three different wavelengths, a polymer having light-sensitive, which is polymerized by using the unit compound as a monomer, and a production method of the compound and polymer. The light-sensitive compound and the polymer according to the present invention may be usefully applied to an optical film.
    Type: Application
    Filed: June 30, 2010
    Publication date: July 25, 2013
    Applicant: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Dong Hack Suh, Won Jung Kim, Yun Cheol Yang, Dong Wan Han, Hong Jun Ahn, Jun Yong Hwang, Kyung Mi Lee, Hyun Jin Lee, Seong Heun Cho, Ga Young Han
  • Publication number: 20130169909
    Abstract: A liquid crystal cell structure is provided. The liquid crystal cell structure includes: two polarizers; and a liquid crystal diffractive light modulating cell placed between the two polarizers. The cell includes: two transparent substrates treated by photoalignment; and a ferroelectric liquid crystal layer disposed between the two transparent substrates with current conducting layers, the ferroelectric liquid crystal layer comprising ferroelectric liquid crystals. The two transparent substrates treated by photoalignment are configured to provide multiple alignment domains in the ferroelectric liquid crystals with a planar surface orientation. Adjacent domains of the multiple alignment domains are oriented at an angle with respect to each other.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 4, 2013
    Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventor: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
  • Publication number: 20130141683
    Abstract: The invention discloses a liquid crystal display (LCD) panel manufacturing method as well as an LCD panel and an LCD. The manufacturing method comprises the following steps: A: Treating a surface of an electrode of an LCD panel, the surface at least comprising a contact surface with an Au ball, to diminish the adhesion of an alignment liquid to the contact surface and prevent the alignment liquid from not coating the contact surface; and B: Coating or printing the alignment liquid. Because the electrode surface to which an Au ball particle will be applied (namely the transfer pad) is treated before the application to diminish the adhesion of the alignment liquid to this surface, and no alignment layer will be formed on the surface of the transfer pad. Therefore, the alignment layer can be very wide, the uniformity of the alignment layer at the edge is good, the accuracy is high, the display effect on the edge of the LCD panel is improved, and the frame of the LCD panel is narrowed.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 6, 2013
    Inventor: Chenghung Chen
  • Publication number: 20130114031
    Abstract: A liquid crystal display device has a liquid crystal display panel including pixels each having an active device, a pixel electrode, a common electrode and a liquid crystal layer arranged in a dot matrix array. The liquid crystal display panel has a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate has the active device, the pixel electrode, the common electrode and a first alignment film. The second substrate has a second alignment film. The first alignment film and the second alignment film are respectively a photo alignment film formed by irradiating a photo decomposition type insulating film with light. The second alignment film has a thickness of at least 10 nm and no greater 50 nm and is thinner than the first alignment film.
    Type: Application
    Filed: December 21, 2012
    Publication date: May 9, 2013
    Inventors: Hidehiro SONODA, Chikae MATSUI, Noboru KUNIMATSU, Yuko MATSUMOTO
  • Patent number: 8436970
    Abstract: Provided is a liquid crystal display including: a first substrate and a second substrate facing each other; a pixel electrode disposed on the first substrate; an opposing electrode disposed on the second substrate; a liquid crystal layer in vertical alignment mode interposed between the first substrate and the second substrate and including a plurality of liquid crystal molecules; and a tilt direction determining member determining tilt directions of the liquid crystal molecules when an electric field is generated in the liquid crystal layer, wherein the liquid crystal layer includes a first area and a second area in each of the first area and the second area, the liquid crystal molecules being aligned to have a pretilt without the electric field in the liquid crystal layer, and a pretilt angle of the liquid crystal molecules in the first area is larger a pretilt angle that of the liquid crystal molecules in the second area.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: May 7, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Goo Seok, Keun Chan Oh, Dong-Gi Seong, Min-Jae Kim, Min-Hee Kim
  • Patent number: 8436969
    Abstract: A photo alignment process and a liquid crystal display using the same are provided. The photo alignment process includes the following steps. A photo alignment material layer is formed on a substrate. The photo alignment material layer is irradiated by a linearly polarized light. A surface of the photo alignment material layer is a first plane. A wave vector of the linearly polarized light is a K vector. A second plane is constructed from a normal vector of the first plane and the K vector. A polarization direction of the linearly polarized light is neither perpendicular nor parallel to the second plane.
    Type: Grant
    Filed: February 20, 2011
    Date of Patent: May 7, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Yao-Jen Ou, Hang-Lian Lee, Jian-Cheng Chen, Bo-Chin Tsuei
  • Patent number: 8432519
    Abstract: A pixel includes a plurality of first linear alignment regulating structures (22) provided on the liquid crystal layer side of a first substrate and a plurality of second linear alignment regulating structures (44) provided on the liquid crystal layer side of a second substrate. The first and second linear alignment regulating structures each have a first component (22a, 44a) extending along a first axis and a second component (22b, 44b) extending along a second axis which is different from the first axis, the second linear alignment regulating structures being linear dielectric protrusions. The liquid crystal display device further includes a connection dielectric protrusion (45a, 45b, 45c) for interconnecting two linear dielectric protrusions which belong to pixels adjoining each other and which are not collinear.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: April 30, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masahiro Yoshida, Takahiro Sasaki, Yasunao Iwata
  • Patent number: 8432517
    Abstract: A solution for an alignment film of a liquid crystal display device includes a photo decomposition type polyimide acid which forms the alignment film in response to radiation of a polarized light, wherein a viscosity of the solution is not more than 35 mPa·s.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: April 30, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Publication number: 20130100384
    Abstract: According to one embodiment, a liquid crystal display device includes, a first substrate including a common electrode, a pixel electrode in which a slit facing the common electrode is formed, and a first alignment film, a second substrate including a second alignment film, and a liquid crystal layer which is held between the first alignment film and the second alignment film and is formed of a material having a dielectric constant anisotropy in a range of +3.3 or more to +5.3 or less at a transition temperature of 75° C.
    Type: Application
    Filed: September 12, 2012
    Publication date: April 25, 2013
    Inventors: Youichi ASAKAWA, Hirofumi WAKEMOTO
  • Patent number: 8425799
    Abstract: The present invention provides a liquid crystal photoalignment agent that includes a compound selected from the group consisting of a polyamic acid having a predetermined chemical formula, a polyimide polymer having a predetermined chemical formula, and a combination thereof, and a polyimide photopolymer. The liquid crystal photoalignment agent shows a long life-span, stably maintains a pretilt angle, and shows improved after-image characteristics, liquid crystal alignment properties, and chemical resistance.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: April 23, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Tae-Hyoung Kwak, Dong-Seon Uh, Jae-Min Oh, Jae-Deuk Yang
  • Patent number: 8427611
    Abstract: A production method for making a liquid crystal display device includes subjecting a first alignment film and/or a second alignment film to scanning exposure continuously over a plurality of pixel regions; the scanning exposure including, in an inside of each of a plurality of pixel regions, a first scanning exposure for aligning liquid crystal molecules in a first alignment direction and a second scanning exposure for aligning liquid crystal molecules in a second alignment direction. The second alignment direction may be parallel and opposed to the first alignment direction. In the exposures, a light beam may be made incident from a oblique direction to a normal line on the substrate surface.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: April 23, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroyuki Hakoi, Iichiro Inoue, Koichi Miyachi
  • Patent number: 8404318
    Abstract: The present invention comprises a device and method for ordering molecules of lyotropic chromonic liquid crystals to aligned structure of a dried film. An example of an aligned film may be transparent to visible light but not transparent to polarized light in the ultraviolet and/or infrared portions of the electromagnetic spectrum. A shearing device having a shearing tool and a repelling pad may repel the solvent and provide a shear force to shear the LCLC dissolved in the solvent as a film on the surface of a substrate. A method of making an aligned lyotropic chromonic liquid crystal-based film comprises providing a mixture of a lyotropic chromonic liquid crystal material in a solvent for the liquid crystal material, applying the mixture to a substrate, shearing the lyotropic chromonic liquid crystal with a shearing device and removing the solvent to produce an aligned lyotropic chromonic liquid crystal-based film.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: March 26, 2013
    Assignee: Kent State University
    Inventors: Andrii B. Golovin, Oleg Lavrentovich
  • Patent number: 8400595
    Abstract: A liquid crystal display device includes a pair of substrates, a liquid crystal between substrates and alignment layers disposed on the inner surface sides of the substrates. The alignment layer is made from a material including polyamic acid containing a diamine component and polyimide containing a diamine component different from the diamine component of the polyamic acid. The alignment layer is subjected to alignment treatment by irradiation of light. UV light can be irradiated in the oblique direction onto the alignment layer through a mask having openings. A reflecting plate can be arranged between a UV light source and the mask. Also, bank structures having a thickness from 0.1 to 0.15 ?m can be provided on the alignment layer of the TFT substrate.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: March 19, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideo Chida, Hidefumi Yoshida, Yasutoshi Tasaka
  • Publication number: 20130063689
    Abstract: A method for forming the alignment films on the substrate and a pixel structure of a liquid crystal display are disclosed. The pixel structure comprises a plurality of pixel units arranged in arrays. Each of the pixel units comprises a first substrate, a second substrate, two first alignment films and two second alignment films. The first alignment film is different from the second alignment film. The second substrate is disposed opposite to the first substrate. The two first alignment films and the two second alignment films are individually disposed on the first substrate and the second substrate, while each of the first alignment films is disposed substantially opposite to one of the second alignment films.
    Type: Application
    Filed: November 9, 2012
    Publication date: March 14, 2013
    Applicant: AU Optronics Corp.
    Inventor: AU Optronics Corp.
  • Patent number: 8395735
    Abstract: A liquid crystal display (“LCD”) device includes a first substrate, a pixel electrode, a second substrate, a common electrode and an alignment layer. The first substrate includes a thin-film transistor (“TFT”) and a plurality of pixel areas disposed on the first substrate. The pixel electrode is disposed on the TFT. The second substrate is disposed opposite to the first substrate. The common electrode is disposed on the second substrate. The alignment layer includes an insulation layer and a photoalignment layer, disposed on at least one of the pixel electrode and the common electrode.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Kyoung-Tae Kim, Jin-Soo Jung, Soo-Ryun Cho
  • Patent number: 8395736
    Abstract: The present invention discloses an alignment substrate that includes a base substrate and an alignment layer arranged on the base substrate. A plurality of unit pixels is defined in the base substrate. The alignment layer includes at least two sub-alignment portions dividing the unit pixel into at least two domains. Each sub-alignment portion is arranged in a different domain of the at least two domains and is aligned to have a different pretilt direction from the other sub-alignment portions.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: March 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Kyoung-Tae Kim, Bong-Sun Seo, Mee-Hye Jung, Young-Gu Kim, Min-Sik Jung, Byoung-Hun Sung, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 8395734
    Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 12, 2013
    Assignee: LG Display Co., Ltd.
    Inventor: Su Hyun Park