Alignment Layer Patents (Class 349/123)
  • Publication number: 20130314620
    Abstract: An illumination unit includes a light modulation layer including a first region and a second region that have optical anisotropy and different responsiveness to an electric field. The light modulation layer satisfies an expression A/B<A1/B1 when the light modulation layer exhibits the scattering characteristics.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 28, 2013
    Applicant: Sony Corporation
    Inventors: Akira Ebisui, Harumi Sato, Kentaro Okuyama, Shogo Shinkai
  • Patent number: 8593600
    Abstract: A method for fabricating a liquid crystal panel includes providing first and second mother substrates having a plurality of panel regions, forming a plurality of array substrates in the plurality of panel regions of the first mother substrate, forming a plurality of color filter substrates in the panel regions of the second mother substrate, forming a first alignment film over the first mother substrate, rubbing the first alignment film covering the first mother substrate, attaching the first and second mother substrates, and cutting the attached mother substrates into a plurality of liquid crystal panels.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: November 26, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Woo-Nam Jeong, Su-Hyun Park
  • 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: 8593601
    Abstract: A display panel and a method for manufacturing the same are disclosed. The display panel includes: a first substrate, a touch spacer formed on a first substrate, a common electrode formed on the touch spacer, a second substrate opposing the first substrate, a sensing electrode facing the touch spacer on the second substrate and an alignment layer on the sensing electrode or the touch spacer, wherein the alignment layer has a thickness equal to or less than 500 ?.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doo-hwan You, Young-je Cho, Byoung-jun Lee, Jun-pyo Lee, Sang-youn Han, Hyeong-jun Park, Yun-seok Lee, Sang-gun Choi, Hyun-duck Son
  • Patent number: 8593596
    Abstract: In the step of curing a resin for bonding a TFT substrate and a counter substrate each having an alignment film that has been optically aligned by using UV-light, damage to the alignment film due to the UV-light can be prevented without using a light shielding mask. A UV-light absorption layer is formed between each black matrix on the counter substrate. The TFT and the counter substrates are sealed at their periphery by a resin that is cured by UV-light radiated from the counter substrate side. Since the absorption layer has a high absorbability to UV-light at a wavelength of 300 nm or less that degrades the alignment film, damage to the alignment film due to the UV-light for curing the resin can be prevented. Thus, provision of a light shielding mask for shielding the UV-light for the display region can be saved.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: November 26, 2013
    Assignee: Hitachi Displays, Ltd.
    Inventors: Noboru Kunimatsu, Yuko Matsumoto, Yasushi Tomioka, Masateru Morimoto, Atsuhiro Katayama
  • Patent number: 8593613
    Abstract: An LCD exposure stage device is used for placing a substrate thereon, and comprises: a stage having an upper surface contacting with a bottom surface of the substrate; and a plurality of moving pins disposed flat on the upper surface of the stage with pin heads thereof corresponding to side surfaces of the substrate respectively so that the substrate can move horizontally by the moving pins. According to the present disclosure, only the substrate needs to be moved, so the operations are more convenient; and because the stage is always kept at a fixed position, the requirement on its strength can be appropriately lowered. Furthermore, because the substrate contacts with the stage all the time during the moving and exposure processes, and the time necessary for the exposure process is shortened, which make fabrication of the whole LCD panel more efficient.
    Type: Grant
    Filed: September 17, 2011
    Date of Patent: November 26, 2013
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Hsiao-hsien Chen
  • Patent number: 8593591
    Abstract: [Problem] In the present invention, it is an object to improve display quality by improving response speed of a liquid crystal element in a liquid crystal display device, in particular, response speed in the case of falling. [Means for Solving the Problems] In the present invention, it is characterized that a liquid crystal layer is divided into plural regions (domains) substantially by mixing a chemical compound including a liquid crystal skeleton in a liquid crystal layer exisiting liquid crystal molecules as a technique to improve response speed of a liquid crystal element in a liquid crystal display device for solving the above problem.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: November 26, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takeshi Nishi, Tetsuji Ishitani, Daisuke Kubota
  • Publication number: 20130300993
    Abstract: There is provided a liquid crystal device including a first substrate, a second substrate, a liquid crystal layer that is interposed between and supported by the first substrate and the second substrate, a protrusion portion that is provided on the first substrate and protrudes toward the liquid crystal layer, and a plurality of pixel electrodes that are arranged in the vicinity of the protrusion portion. In the liquid crystal device, a spacing between ends of the plurality of pixel electrodes and an end of the protrusion portion is greater than a height of the protrusion portion.
    Type: Application
    Filed: May 6, 2013
    Publication date: November 14, 2013
    Applicant: Seiko Epson Corporation
    Inventor: Takafumi Egami
  • Publication number: 20130300991
    Abstract: A liquid crystal display includes: a first substrate; and a pixel electrode disposed on the first substrate. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. The first sub-pixel electrode and the second sub-pixel electrode include a cross stem, and a plurality of minute branches extending from the cross stem. The second sub-pixel electrode includes two cross stems disposed adjacent in a column direction, and a center transverse stem disposed between the two cross stems. The center transverse stem includes a cutout.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 14, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yong Woon LIM
  • Publication number: 20130300992
    Abstract: In a method of manufacturing a liquid crystal display device, a process for forming a first substrate includes the steps; forming a first wiring electrically connected with a switching element and extending in a first direction, forming an insulating film covering the first wiring, painting an electrically conductive film including electrically conductive material on the insulating film, and forming a second wiring electrically connected with the switching element extending in a second direction orthogonally crossing the first direction, and a pixel electrode electrically connected with the switching element apart from the second wiring by patterning the electrically conductive film. A second substrate is formed by forming a main common electrode extending in the second direction. A liquid crystal display panel is manufactured by holding liquid crystal material between the first substrate and the second substrate while the main common electrode faces the second wiring.
    Type: Application
    Filed: April 29, 2013
    Publication date: November 14, 2013
    Applicant: Japan Display Inc.
    Inventors: Tomoko KOZUKA, Hirokazu MORIMOTO
  • Patent number: 8576362
    Abstract: A liquid crystal display device suppresses generation of image sticking in AC mode. A liquid crystal display device comprises an alignment film arranged on at least one of a pair of substrates. The alignment film comprises a polymer containing a first constitutional unit and a second constitutional unit. The first constitutional unit controls alignment of the liquid crystal molecules by photoirradiation. The second constitutional unit controls alignment of the liquid crystal molecules regardless of photoirradiation.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: November 5, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinichi Terashita, Isamu Miyake, Koichi Miyachi, Yuko Teraoka
  • 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
  • Publication number: 20130286333
    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: June 25, 2013
    Publication date: October 31, 2013
    Inventors: Hidehiro SONODA, Chikae MATSUI, Noboru KUNIMATSU, Yuko MATSUMOTO
  • Publication number: 20130286337
    Abstract: The liquid crystal display device is provided with a plurality of spacers and a plurality of pedestals which include a first group of the spacers and the pedestals, the first group including at least a pair of one of the spacers and one of the pedestals opposing to each other, and a second group of the spacers and the pedestals, the second group including at least another pair of another one of the spacers and another one of the pedestals opposing to each other, in which the pair of the spacer and the pedestal which form the first group and the pair of the spacer and the pedestal which form the second group are disposed so that a center of the first surface and a center of the second surface are displaced in different directions.
    Type: Application
    Filed: June 27, 2013
    Publication date: October 31, 2013
    Applicants: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., HITACHI DISPLAYS, LTD.
    Inventors: Takao SATO, Yuji MAEDE, Toshiyuki MIMA, Toshiyuki KOSHITA
  • Publication number: 20130278877
    Abstract: A liquid crystal display includes: a first substrate and a pixel electrode thereon, a second substrate facing the first substrate and a common electrode thereon; at least one alignment layer on at least one of the pixel electrode and the common electrode; and a liquid crystal layer between the pixel electrode and the common electrode. A pixel including the pixel electrode includes a plurality of domains including a first domain. The domains have average orientations of the liquid crystal molecules different from each other. The pixel electrode has a first opening in the first domain, and the first opening extends substantially parallel to an edge of the pixel electrode.
    Type: Application
    Filed: August 7, 2012
    Publication date: October 24, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Oh-Jeong Kwon, Jae-Hong Park, Sung-Jae Yun, Hyeok Jin Lee, Jiang Shuai, Kyung Hye Park, Joo Young Yoon
  • Publication number: 20130271686
    Abstract: A liquid crystal display device includes a first substrate having a first alignment base layer disposed thereon, a second substrate facing the first substrate and having a second alignment base layer disposed thereon, and ferroelectric liquid crystals vertically aligned between the first substrate and the second substrate. The first alignment controller combines with the first alignment base layer and includes a side chain longer than that of the first alignment base layer. The second alignment controller combines with the second alignment base layer and includes a side chain longer than that of the second alignment base layer. The ferroelectric liquid crystals are pre-tilted by the first alignment controller and the second alignment controller, and as a result, transmittance may be improved. Because the ferroelectric liquid crystals are pre-tilted, a cell gap may be decreased and high-speed driving may be possible at a low voltage.
    Type: Application
    Filed: August 29, 2012
    Publication date: October 17, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yong Woon LIM
  • Publication number: 20130271712
    Abstract: The present invention provides a liquid crystal display device that rarely causes burn-in at high throughput. The present invention provides a liquid crystal display device that includes a pair of substrates and a liquid crystal layer between the pair of substrates, wherein at least one of the pair of substrates includes an alignment layer and a polymer layer for controlling the alignment of adjacent liquid crystal molecules, the polymer layer being disposed on the alignment layer, the polymer layer has a structure containing at least three condensed benzene rings, and the alignment layer is covalently bonded to the polymer layer.
    Type: Application
    Filed: December 6, 2011
    Publication date: October 17, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Masanobu Mizusaki
  • Publication number: 20130265533
    Abstract: A liquid crystal display includes: a first substrate; a pixel electrode on the first substrate; a second substrate which faces the first substrate; a common electrode on the second substrate; a liquid crystal layer between the first substrate and the second substrate; and a cross-shaped organic layer protrusion on the first substrate or the second substrate and overlapping the pixel electrode. The edge of the organic layer protrusion is protruded from the edge of the pixel electrode.
    Type: Application
    Filed: September 14, 2012
    Publication date: October 10, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Uk LIM, Oh Jeong KWON, Kwang-Chul JUNG, Mee Hye JUNG, Jae Hong PARK, Sung-Jae YUN
  • Publication number: 20130265289
    Abstract: A cholesteric liquid crystal display device includes a first substrate, a second substrate, a cholesteric liquid crystal layer and a plurality of nano particles. The first substrate includes a first alignment layer. The second substrate includes a second alignment layer. The cholesteric liquid crystal layer is disposed between the first and second alignment layers. The nano particles are disposed on a surface of one of the first and second alignment layers, and located between the one of the first and second alignment layers and the cholesteric liquid crystal layer.
    Type: Application
    Filed: September 13, 2012
    Publication date: October 10, 2013
    Inventors: Yu-Hsien CHEN, Huang-Ming Chen, Sheng-Fa Liu, Mei-Tsao Chiang, Bao-Sian Ciou
  • Patent number: 8552433
    Abstract: A display device which can suppress waveform distortion and lowered transmission coefficient of pixels, and suppress display irregularity is provided. In a display device having pixels arranged in a delta arrangement, a pixel includes a pixel portion which comprises a TFT including a source electrode, a drain electrode and a gate electrode, a common electrode and a pixel electrode, an organic passivation film has asymmetrical opening portions above a contact portion of the source electrode, and the orientations of the asymmetrical opening portions in the organic passivation films of pixels adjacent to each other are the same.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: October 8, 2013
    Assignee: Japan Display East Inc.
    Inventor: Takahiro Nagami
  • Publication number: 20130258255
    Abstract: An in-plane switching (IPS) liquid crystal device comprises a first substrate and a second substrate opposite to each other, a liquid crystal layer between the first substrate and second substrate, a plurality of first pixel electrodes and first common electrodes alternately arranged on the first substrate, and a plurality of second common electrodes on the second substrate that are disposed at the position on the first substrate corresponding to the first common electrodes.
    Type: Application
    Filed: August 20, 2012
    Publication date: October 3, 2013
    Inventor: Jih-Hsin Fang
  • Publication number: 20130258262
    Abstract: A liquid crystal display includes a first substrate, a pixel electrode disposed on the first substrate, a first alignment layer disposed on the first substrate and the pixel electrode, a second substrate disposed opposite to the first substrate; a common electrode disposed on the second substrate, a second alignment layer disposed on the second substrate and the common electrode, and a liquid crystal layer disposed between the first substrate and the second substrate, in which the liquid crystal layer includes a plurality of liquid crystal molecules and a chiral dopant, and the first alignment layer and the second alignment layer include polymers formed by photo-polymerization of reactive mesogen.
    Type: Application
    Filed: September 13, 2012
    Publication date: October 3, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeong Ho LEE, Jae Hong PARK, Oh Jeong KWON, Sung-Jae YUN, Tae Woon CHA, Sang Gun CHOI
  • Patent number: 8545717
    Abstract: The present invention relates to a composition comprising a curable dichroic dye and a curable liquid crystal compound, which are used to prepare an optical component that is vertically oriented to give a narrow viewing angle, to form an optical component, and an optical component comprising an optical component layer prepared using the same. There is provided a composition for forming an optical component comprising 0.1-90 parts by weight of a dichroic dye and 10-98.85 parts by weight of a curable liquid crystal compound, and there is also provided an optical component comprising an optical component layer in which a curable liquid crystal compound and a curable dichroic dye are vertically oriented.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: October 1, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Yong Il Cho, Dae Hee Lee, Sin Young Kim, Hee Jean Lee, Su Young Ryu
  • Publication number: 20130250220
    Abstract: A liquid crystal display includes: a substrate; a thin film transistor on the substrate; a pixel electrode which is connected to a terminal of the thin film transistor; a microcavity layer on the pixel electrode and including an injection hole through which material is provided to the microcavity layer; a supporting layer on the microcavity layer; and a capping layer on the supporting layer. The capping layer covers the injection hole, and the supporting layer includes silicon oxycarbide (SiOC).
    Type: Application
    Filed: August 29, 2012
    Publication date: September 26, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang Ok KIM, Yeun Tae KIM, Hyang-Shik KONG, Jae Sul AN, Hyeong Suk YOO, Chang Oh JEONG
  • Publication number: 20130250221
    Abstract: A display device including an active device array substrate having an active surface, an opposite substrate, a first alignment unit, a second alignment unit, a liquid crystal layer and a sealant is provided. The opposite substrate disposed above the active device array substrate has a light transmissive surface, wherein the active surface and the light transmissive surface face each other. The first alignment unit is disposed on the active device array substrate and located on the active surface. The second alignment unit is disposed on the opposite substrate and located on the light transmissive surface, wherein the first alignment unit aligns with the second alignment unit. The liquid crystal layer is disposed between the first and the second alignment units. The sealant directly connects the active surface and the light transmissive surface, and surrounds peripherals of the liquid crystal layer, the first alignment unit, and the second alignment unit.
    Type: Application
    Filed: May 16, 2013
    Publication date: September 26, 2013
    Applicant: Himax Display, Inc.
    Inventors: Chien-Liang Wu, Kuan-Hsu Fan-Chiang, Chun-Hao Su
  • Patent number: 8542336
    Abstract: A liquid crystal display includes: a first panel; a second panel facing the first panel; a first electrode and a second electrode formed on the first panel; a liquid crystal layer provided between the first panel and the second panel; and a first alignment layer formed on the first panel and contacting the liquid crystal layer. The first alignment layer includes a first alignment base layer and a first alignment control agent, the first alignment base layer represents a material for vertically aligning liquid crystal of the liquid crystal layer, and the first alignment control agent comes out of the first alignment base layer and provides alignment force to the liquid crystal.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 24, 2013
    Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventor: Jae-Hoon Kim
  • Patent number: 8542335
    Abstract: A simple matrix type dot-matrix liquid crystal display element includes a first and a second transparent substrate disposed opposite to each other, first and second transparent electrodes disposed on the opposed face of the first and the second transparent substrate, respectively, a first and a second vertical alignment film disposed on the opposed side of the first and the second transparent substrate to cover the first and the second electrodes, respectively, a liquid crystal layer disposed between the opposed side of the first and the second transparent substrate and having ??<0 and ?nd>450 nm, and a first and a second viewing angle compensation plate disposed on the unopposed side of the first and the second transparent substrate, respectively, wherein in the first transparent electrode, openings extending in a predefined direction are aligned.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 24, 2013
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Yoshihisa Iwamoto
  • Publication number: 20130242239
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Application
    Filed: September 13, 2012
    Publication date: September 19, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hak Sun CHANG, Eun-Kil PARK, Hyun-Ho KANG, Jang Wi RYU, Seung-Suk YANG, Ki Chul SHIN, Se Hyun LEE, Jae-Soo JANG, Hyo Ju JUNG
  • Publication number: 20130235310
    Abstract: The invention relates to the field of LCDs, and more particularly to an LCD panel and an LCD device. The LCD panel includes a glass substrate; the glass substrate is coated with a PI layer, and the end of the PI layer is provided with closely distributed and mutually independent retaining wall sections. The distance of the end of the PI liquid is controlled by arranging the closely distributed and mutually independent retaining wall sections. The distance between the end of the PI layer and the frame sealant can be reduced when the liquid of the frame sealant is coated, and the design of narrow frames can be achieved because the distance between the visual domain and the end of the PI layer and the distance between the end of the PI layer and the frame sealant are shortened.
    Type: Application
    Filed: March 26, 2012
    Publication date: September 12, 2013
    Inventor: Guofu Tang
  • Patent number: 8530007
    Abstract: A liquid crystal display includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a first insulating substrate, in which a pixel area is defined, a gate line formed on the first insulating substrate, a data line crossing the gate line, and a thin film transistor connected to the gate line and the data line. The second substrate is opposite to the first substrate. The liquid crystal layer is interposed between the first and second substrates and includes a liquid crystal composition with a nematic-isotropic phase transition temperature (Tni) of 79° C. or above.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: September 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: SooJeong Huh, Namseok Lee, Won-Gup Yoon, Soyoun Park, SiHeun Kim
  • Patent number: 8531633
    Abstract: According to an exemplary embodiment of the present invention, a liquid crystal layer may be aligned by using an alignment layer including an alignment base layer having a horizontal alignment layer and a vertical alignment layer, and an alignment control agent. Accordingly, a multi-domain liquid crystal display having an excellent viewing angle for all grays may be provided. Also, a multi-domain liquid crystal display having a fast response speed as well as an excellent viewing angle for all grays may be provided.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: September 10, 2013
    Assignee: IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
    Inventor: Jae-Hoon Kim
  • Publication number: 20130229606
    Abstract: A liquid crystal display device (100A) of the present invention includes a liquid crystal layer (1) and first and second alignment films (12, 13) which are provided with an alignment treatment. The liquid crystal layer (1) includes, in each of the pixels, a plurality of first small sections (14a) separated by a wall (10) and the first alignment film (12) and a plurality of second small sections (14b) separated by the wall (10) and the second alignment film (13). Each of the plurality of first small sections (14a) has a first liquid crystal region (11a). Each of the plurality of second small sections (14b) has a second liquid crystal region (11b). Each of the first and second liquid crystal regions (11a, 11b) includes a nematic liquid crystal material and a dichromatic dye (21a, 21b). The dichromatic dye (21a) of the first liquid crystal region (11a) is aligned along the alignment direction of the first alignment film (12).
    Type: Application
    Filed: October 17, 2011
    Publication date: September 5, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh
  • Publication number: 20130222750
    Abstract: A display substrate includes a first electrode and a first alignment layer disposed on the first electrode. The first alignment layer includes first and second alignment parts. The first electrode has a first opening portion formed therethrough. The first and second alignment parts are disposed at two sides of the first opening portion. The first and second alignment parts have the different alignment directions from each other.
    Type: Application
    Filed: June 25, 2012
    Publication date: August 29, 2013
    Inventors: Young-Gu KIM, Byoung-Hun SUNG, Baek-Kyun JEON, Jin-Soo JUNG
  • Publication number: 20130222714
    Abstract: According to one embodiment, a liquid crystal optical apparatus includes a first substrate unit, a second substrate unit, and a liquid crystal layer. The first substrate unit includes a first substrate having a first major surface and first electrodes provided on the first major surface to extend along a first direction, and arranged in a direction non-parallel to the first direction. The second substrate unit includes a second substrate having a second major surface opposing the first major surface and a second electrode provided on the second major surface to oppose the first electrodes. The liquid crystal layer is provided between the first and second substrate units. One of the first electrodes includes a first main body portion and a first tip portion. The first main body portion extends along the first direction, and the first tip portion is provided at a tip of the first main body portion.
    Type: Application
    Filed: September 13, 2012
    Publication date: August 29, 2013
    Inventors: Shinichi UEHARA, Masako Kashiwagi, Ayako Takagi, Masahiro Baba
  • Publication number: 20130215346
    Abstract: A liquid crystal display is provided. A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate, wherein the liquid crystal layer includes liquid crystal molecules and nanoparticles including a hydrophobic group having a chain structure and a hydrophilic group.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 22, 2013
    Applicants: Pusan National University Industry-University Cooperation Foundation, SAMSUNG DISPLAY CO., LTD.
    Inventors: Gak Seok LEE, Hee Seop KIM, Ki Chul SHIN, Ki-Han KIM, Byung Wok PARK, Tae-Hoon YOON, Eun Young JEON, Ji-Hoon LEE
  • Publication number: 20130215341
    Abstract: A liquid crystal display includes a plurality of pixels, a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates. The first substrate includes a first base substrate and a pixel electrode provided on the first base substrate to correspond to each of the pixels. The second substrate includes a second base substrate facing the first base substrate and a common electrode provided on the second base substrate. The common electrode forms an electric field having an equipotential surface substantially parallel to an upper surface of the first base substrate in cooperation with the pixel electrode. The liquid crystal layer is disposed between the pixel electrode and the common electrode and includes a liquid crystal composition having an anisotropic dielectric constant equal to or smaller than ?2.9 and equal to or larger than ?1.7.
    Type: Application
    Filed: September 10, 2012
    Publication date: August 22, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon Joon RHO, Jun Ha PARK, Jihong BAE, Hyelim JANG, Hyeokjin LEE
  • Publication number: 20130215352
    Abstract: An electro-optical device typified by an active matrix type liquid crystal display device, is manufactured by cutting a rubbing process, and in addition, a reduction in the manufacturing cost and an improvement in the yield are realized by reducing the number of process steps to manufacture a TFT. By forming a pixel TFT portion having a reverse stagger type n-channel TFT, and a storage capacitor, by performing three photolithography steps using three photomasks, and in addition, by having a uniform cell gap by forming wall-like spacers by performing one photolithography step, without performing a rubbing process, a multi-domain perpendicular orientation type liquid crystal display device having a wide viewing angle display, and in which a switching direction of the liquid crystal molecules is controlled, can be realized.
    Type: Application
    Filed: March 25, 2013
    Publication date: August 22, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Semiconductor Energy Laboratory Co., Ltd.
  • Patent number: 8514361
    Abstract: A liquid crystal display device comprises a first substrate, a thin film transistor over an upper surface the first substrate, an interlayer insulating film formed over the thin film transistor, a first insulating layer formed over the interlayer insulating film, a second insulating layer formed over the interlayer insulating film, an electrode electrically connected to the thin film transistor wherein a portion of the electrode is formed on at least side surfaces of the first insulating layer, a common electrode formed over the interlayer insulating film wherein a portion of the common electrode is formed on at least side surfaces of the second insulating layer such that an electric field is produced by the common electrode and the electrode, a second substrate opposed to the first substrate, and a mixture containing a polymer and a liquid crystal between the first substrate and the second substrate. The electric field is applied to the mixture.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 20, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Takeshi Nishi, Rumo Satake
  • Patent number: 8514359
    Abstract: Provided is a liquid crystal display device, including: a liquid crystal layer filled between a first and a second substrate; two polymer structures; and a plurality of pixels each including a first and a second electrode, one of the first and the second electrode being a pixel electrode, in which: each of the plurality of pixels is provided within a region surrounded by a signal line, a part of the signal line being formed between adjacent two of the plurality of pixels; each of the two polymer structures, which extends along the part of the signal line so as to sandwich the part of the signal line in plan view and is formed from one of the first and the second substrate toward another thereof, is formed so as to overlap with any of the region; and the two adjacent polymer structures has the liquid crystal layer provided therebetween.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Shintaro Takeda, Kotaro Araya, Yasushi Tomioka, Masaki Matsumori, Yoshiro Mikami
  • Patent number: 8514356
    Abstract: In a liquid crystal display device small in the size and having a narrow frame, an alignment film can be coated by ink jet printing, by coating a rapidly drying peripheral alignment film 109 in the shape of a frame to a TFT substrate 100 having a display region having pixel electrode 107 and a peripheral region thereof by ink jet printing, and then coating a display region alignment film 108 drying slower but excellent in the leveling effect by ink jet printing. While the display region alignment film 108 dries slowly, since the peripheral alignment film 109 formed to the periphery functions as a stopper, the shape of the alignment film can be defined accurately, thereby enabling to prevent lowering of the adhesion of the seal member 20 under the effect of the alignment film. This can be applied also on the side of the counter substrate 200.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 20, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Publication number: 20130208222
    Abstract: A reactive mesogen compound, a liquid crystal composition including the reactive mesogen compound, a method of manufacturing a display panel, and a display panel are disclosed. The reactive mesogen compound may be activated by light having a wavelength between about 300 nm and about 700 nm.
    Type: Application
    Filed: August 16, 2012
    Publication date: August 15, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Ho SONG, Young-Jin PARK, Gyeong-Eun EOH, Sung-Chan JO, Sang-Wan SO
  • Publication number: 20130208221
    Abstract: The invention provides an LCD panel, an LCD device, and a method for manufacturing a panel. The LCD panel includes an upper substrate and a lower substrate which are arranged opposite to each other. Opposite inner sides of the upper substrate and the lower substrate are respectively provided with a layer of alignment film, a sealant is arranged between the upper substrate and the lower substrate, the alignment film is arranged to extend outside the sealant area, and a surface of the alignment film exposed outside the sealant is provided with a sealing layer. In the invention, the alignment film is arranged to extend outside the sealant, which enable a narrow frame to be used to the LCD panel, and improves the utilization rate of the substrate; moreover, the alignment film exposed outside the sealant is sealed, to completely isolate the alignment film from the outside air; thus, the alignment film cannot be hydrolyzed because of absorbing the outside vapor, thereby ensuring the display quality.
    Type: Application
    Filed: May 22, 2012
    Publication date: August 15, 2013
    Inventor: Xiaolong Ma
  • Publication number: 20130208194
    Abstract: Systems and methods are described for producing liquid crystal devices microwave that use metal alignment layers. The liquid crystal microwave devices include a liquid crystal layer sandwiched between metal layers, which are further sandwiched between substrate layers. At least one of the metal layers is rubbed to form micro-grooves that tend to align the liquid crystal molecules adjacent to those layers without using additional rubbed polymeric layers for the alignment. The thickness of the metal layers can be selected to yield a desired electromagnetic effect, such as constraint of propagation of microwave radiation.
    Type: Application
    Filed: February 13, 2013
    Publication date: August 15, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF COLORADO
    Inventor: The Regents of the University of Colorado
  • Publication number: 20130208223
    Abstract: In a conventional bistable liquid crystal device, switching characteristics fluctuate among panels and there is a problem in mass productivity. As an intermediate layer, an uneven film is inserted between a low anchoring layer and ITO. The uneven film has an average surface roughness of 2 nm or less, which is measured by an atomic force microscope. In this manner, the low anchoring layer is not affected by the surface shape of the ITO film which differs among panels, and the switching characteristics are stabilized.
    Type: Application
    Filed: July 7, 2011
    Publication date: August 15, 2013
    Applicant: SEIKO INSTRUMENTS INC.
    Inventors: Shigeru Senbonmatsu, Shuhei Yamamoto
  • Patent number: 8508702
    Abstract: This liquid crystal display device comprises electrodes that are formed on at least one of a pair of substrates, and are used for applying voltage onto liquid crystal molecules; a first alignment control layer that is sandwiched between the substrates, and makes the liquid crystal molecules aligned vertically; a liquid crystal layer formed by sandwiching a liquid crystal composition comprising a liquid crystal and a photopolymerizable compound between the substrates, followed by ultraviolet ray irradiation; and a second alignment control layer composed of a UV-cured product formed by the ultraviolet ray irradiation that is formed so that not less than two domains having different threshold voltages are present in a pixel, and at least one of the domains has a threshold voltage higher than the threshold voltage by the first alignment control layer. Liquid crystal display devices having good half-tone viewing angle characteristics are provided.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: August 13, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shingo Kataoka, Yoshio Koike
  • Publication number: 20130201431
    Abstract: A liquid crystal display includes a display panel having a plurality of pixels. The display panel includes a first substrate and a second substrate opposing each other. A liquid crystal layer is positioned between the first substrate and the second substrate. A pixel electrode is positioned on the first substrate and positioned in one pixel of the plurality of pixels. An opposing electrode faces the pixel electrode with the liquid crystal layer interposed therebetween. At least one of the pixel electrode and the opposing electrode includes a liquid crystal inclination direction determining member. A transmission region of the pixel includes a first region and a second region that have different cell gaps of the liquid crystal layer from each other and extension directions of the liquid crystal inclination direction determining member in the first region and the second region are different from each other.
    Type: Application
    Filed: May 30, 2012
    Publication date: August 8, 2013
    Inventors: Seung-Suk Yang, Ho-Jun Lee, Sang Ho Kim, Sang Yeoul Lim, Young-Min Jung, Ho Kyung Kim, Sung Hoon Kim
  • Publication number: 20130201432
    Abstract: A liquid crystal display includes: a first substrate; a pixel electrode disposed on the first substrate; a second substrate facing the first substrate; a common electrode disposed on the second substrate; and a liquid crystal layer disposed between the first substrate and the second substrate. The common electrode includes a first cross-shaped cutout overlapping the pixel electrode, and a second cutout parallel to an edge of the pixel electrode, the second cutout being separated from the edge of the pixel electrode.
    Type: Application
    Filed: January 17, 2013
    Publication date: August 8, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventor: Samsung Display Co., Ltd.
  • Patent number: 8502947
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate and a second substrate. The first substrate includes a switching element, a first electrode, a second electrode electrically connected with the switching element and facing the first electrode. In the second electrode, a plurality of slits in a V shape is formed along a first direction. The first and second substrates include first and second alignment films, respectively. The slit in the V shape includes a central portion, a first end connected with one end of the first central portion, a second end connected with the other end of the first central portion, a second central portion, a third end connected with one end of the second central portion, and a fourth end connected with the other end of the second central portion. The first end and the third end are connected each other.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: August 6, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Kazuyuki Harada, Hiroyuki Kimura, Junichi Kobayashi, Masato Nakamura
  • Publication number: 20130194533
    Abstract: A display device employing a liquid crystal module and a method for fabricating the display device are provided. The liquid crystal module includes a first substrate and a second substrate, wherein the first substrate is disposed opposite to the second substrate; a first photo-alignment layer disposed on a top surface of the first substrate, and a second photo-alignment layer disposed on a bottom surface of the second substrate, wherein the first and second photo-alignment layers include a plurality of protrusions, and wherein the protrusions are formed by polymerizing non-polar monomers having two or three acrylate functional groups; and a liquid crystal layer disposed between the first and second photo-alignment layers.
    Type: Application
    Filed: January 30, 2013
    Publication date: August 1, 2013
    Applicant: INNOLUX CORPORATION
    Inventors: Rong-Ching YANG, Wei-Chuan HUANG, Han-Chang CHEN, Shih-Fang LIAO, Hung-Ming SHEN, Wan-Ling HUANG, Kai-Neng YANG, Tsau-Hua HSIEH
  • Publication number: 20130194534
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode and a counter electrode, an insulation film, and a first orientation film formed over the pixel electrode and the counter electrode on the first substrate, the first orientation film being responsive to a radiated polarized light to obtain an initial orientation direction. A second substrate is opposed to the first substrate, a second orientation film is formed over the second substrate, and a liquid crystal is sealed between the first and second substrates. The first and second orientation films are made of polyimide, the liquid crystal has negative dielectric anisotropy, and the liquid crystal display device is normally in a black mode. An angle formed between the electric field and the initial orientation direction of the first orientation film is in a range of greater than 0° to 45°.
    Type: Application
    Filed: March 5, 2013
    Publication date: August 1, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.
    Inventors: Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Ohe, Sukekazu Aratani, Hagen Klausmann