Alignment Layer Patents (Class 349/123)
  • Patent number: 9701793
    Abstract: An alignment film, a method for preparing the same, a liquid crystal display device including the alignment film. The alignment film is an oriented polyimide film. The method for preparing the alignment film includes: adding a bridging diphenyl diamine to N-methylpyrrolidinone, followed by the addition of 1,4,5,8-naphthalenetetracarboxylic dianhydride to allow the reaction to occur, and filtering the reaction mixture to give a liquid polyamide acid; dissolving the liquid polyamide acid into N-methylpyrrolidinone to give a solution, which is coated onto the surface of a substrate and subjected to a heat treatment, to produce a polyimide film; and orienting the polyimide film via an orientation process to form an alignment film, wherein, polyimide has a structure represented by Formula-4: wherein, R is a strong electron withdrawing group, each of R1 and R2 is independently methyl, ethyl, propyl, isopropyl, methoxy, ethoxy, propoxy, or isopropoxy, The polyimide film has good optical transmittance.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: July 11, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ang Xiao, Shanshan Wang
  • Patent number: 9689793
    Abstract: Systems and methods for detection of an amphiphile at a liquid crystal interface include the production of circular polarized light. A system 100 for detecting an amphiphile at a liquid crystal interface comprises a source of white collimated light. A circular polarizer is included for circularly polarizing incoming white light. Polarized white light passes through to an LC grid including a suspended LC film and a solution in contact with the LC grid at a surface. A spectrophotometer optically detects the presence of an amphiphile at the surface by determining a change in birefringence exhibited by the suspended LC film. A method for detecting amphiphiles at a liquid crystal water interface comprises shining collimated white light on an LC cell including an LC film, polarizing the white light with a circular polarizer, adding an amphiphile to a solution in contact with the LC film, and optically detecting the presence of the amphiphile by measuring a change in birefringence exhibited by the LC film.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: June 27, 2017
    Assignee: KENT STATE UNIVERSITY
    Inventors: Antal Jakli, Elizabeth Mann, Piotr Popov
  • Patent number: 9678388
    Abstract: To provide a vertical alignment liquid crystal display device capable of achieving a high-definition image display. Tilt directions of liquid crystal molecules when a voltage is applied are within a plane that is in parallel to a border between a first pixel and a second pixel, and are different by 180 degrees between the first and second pixels. The first pixel is constituted with three sub-pixels for R, G, and B arranged in a direction in parallel to the border. Similarly, the second pixel is constituted with three sub-pixels for R, G, and B. The tilt directions of the liquid crystal molecules when a voltage is applied are different by 180 degrees from each other between the sub-pixels for R of the first and second pixels, between the sub-pixels for G of the first and second pixels, and between the sub-pixels for B of the first and second pixels.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 13, 2017
    Assignee: NLT TECHNOLOGIES, LTD.
    Inventor: Kenichi Takatori
  • Patent number: 9671647
    Abstract: A curved display device includes: a display substrate curved along a first direction; an opposing substrate coupled with the display substrate and curved together with the display substrate; and a liquid crystal layer including liquid crystal molecules interposed between the display substrate and the opposing substrate, where the opposing substrate includes: a common electrode; and a first alignment layer disposed on the common electrode and which aligns a first portion of the liquid crystal molecules at a first pre-tilt angle, and the display substrate includes: a pixel electrode disposed in each of a plurality of pixel areas, where a slit is defined in the pixel electrode; and a second alignment layer disposed on the pixel electrode and which aligns a second portion of the liquid crystal molecules at a second pre-tilt angle, which is greater than the first pre-tilt angle.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su Jeong Kim, Kichul Shin, Jae Hoon Jung
  • Patent number: 9671649
    Abstract: A phase modulator for polarized light, comprising a first substrate with a first surface and a second substrate with a second surface, a liquid crystal layer between the two substrates and an electrode arrangement. The phase modulator is usable as a variable deflection grating, and liquid crystal materials which are currently conventional are usable for its production. A phase modulator has an out-of-plane angle of the liquid crystal molecules next to the two surfaces whose magnitude is greater than 0 but less than or equal to 45 degrees, and an electrode arrangement controllable such that an in-plane component of the liquid crystal molecule orientation is adjustable in an angle range of up to 180 degrees, and the rotation sense of the liquid crystal molecules next to the first surface is opposite to the rotation sense of the liquid crystal molecules next to the second surface.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 6, 2017
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Norbert Leister
  • Patent number: 9671450
    Abstract: The disclosure is related to an array substrate, a display panel and a method for detecting the array substrate. The array substrate comprises a plurality of pixels arranged in an array. Each of the pixels comprises a plurality of sub-pixels arranged in sequence. Each of the sub-pixels is arranged opposite to a capacitor at an interval. Each sub-pixel comprises a sub-pixel electrode. At least one sub-pixel electrode comprises an extension portion. At least one extension portion of the sub-pixel electrode of the sub-pixel is arranged corresponding to the space between the adjacent sub-pixel and the capacitor corresponding to the adjacent sub-pixel.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 6, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Cheng-Hung Chen, Zui Wang
  • Patent number: 9659965
    Abstract: A liquid crystal display (LCD) device comprises a first substrate, a second substrate disposed to face the first substrate, a liquid crystal layer which is disposed between the first substrate and the second substrate and which includes multiple liquid crystal molecules, and a self-alignment layer formed between the first substrate and the liquid crystal layer, the self-alignment layer comprising a vertical alignment additive having a molecular structure having a hydrophilic group and a polymerized group formed in both ends of a core molecule, wherein a major axis of the vertical alignment additive is at an angle less than about 90° with respect to a surface of the first substrate.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: May 23, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heungshik Park, Jihong Bae, Ohjeong Kwon, Kichul Shin
  • Patent number: 9644146
    Abstract: The present invention provides a composition for forming a liquid crystal layer which enables to achieve takt time reduction and high display quality. The liquid crystal display device according to the present invention includes a liquid crystal material, and a monomer, the monomer being a compound having a structure that generates ketyl radicals when undergoing a hydrogen abstraction reaction caused by exposure to light.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: May 9, 2017
    Assignees: Sharp Kabushiki Kaisha, Toyo Gosei Co., Ltd.
    Inventors: Masanobu Mizusaki, Yuichiro Yamada, Satoshi Enomoto, Yuki Hara, Hideo Kikuchi
  • Patent number: 9632363
    Abstract: The present disclosure provides a method for rubbing an alignment layer and a liquid crystal display panel. The method includes: performing a first rubbing on the alignment layer of a liquid crystal display panel in a first rubbing direction; and performing a second rubbing on the alignment layer of the liquid crystal display panel in a second rubbing direction. The second rubbing direction is an arrangement direction of liquid crystal molecules when the liquid crystal molecules are arranged correctly on the alignment layer. The second rubbing direction is different from the first rubbing direction.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: April 25, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongpeng Li, Sunghun Song, Jingpeng Li
  • Patent number: 9625780
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a first substrate, a plurality of signal lines positioned on the first substrate, a pixel electrode connected to the signal lines, and a contact hole exposing a portion of the signal line, wherein the pixel electrode includes a cross-shaped stem, a plurality of branch electrodes extending from the cross-shaped stem, and an edge stem connecting the plurality of branch electrodes at an edge of the pixel electrode, and the edge stem of the pixel electrode adjacent to the contact hole being removed.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kang-Young Lee, Hong Min Yoon, Ho Jun Lee, Youn Hak Jeong, Seung Ki Song, Doo Hwan You, Sung-Jin Lee, Kyung-Suk Jung
  • Patent number: 9625772
    Abstract: In an LCD device, the slope angle of a wall surface of a wall structure (wall-surface slope angle) is varied in accordance with the angle formed between the wall structure and an alignment treatment direction (alignment treatment angle). At places where the alignment treatment angle is small, the wall-surface slope angle is made larger; conversely, at places where the alignment treatment angle is large, the wall-surface slope angle is made smaller.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: April 18, 2017
    Assignee: Japan Display Inc.
    Inventors: Osamu Itou, Takato Hiratsuka, Toshimasa Ishigaki, Daisuke Sonoda
  • Patent number: 9618805
    Abstract: A disclosed liquid crystal display includes an upper plate and a lower plate with a liquid crystal layer interposed therebetween. The display also includes a spacer positioned between the upper plate and the lower plate. The lower plate includes a lower electrode, an insulating layer over the lower electrode, an upper electrode over the insulating layer, and an alignment layer connected to the lower electrode and the upper electrode. The alignment layer is connected to the lower electrode through a hole passing through the insulating layer.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: April 11, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Changseung Woo, Soonhwan Hong
  • Patent number: 9620528
    Abstract: A display panel is disclosed, which comprises: a substrate with a first surface, a first thin film transistor unit and a second thin film transistor unit disposed on the first surface of the substrate; a first conductive line with a first inclined surface, disposed on the first surface of the substrate and electrically connecting to the first thin film transistor unit; a second conductive line with a second inclined surface, disposed on the first surface of the substrate and electrically connecting to the second thin film transistor unit, wherein an angle included between the first surface and the first inclined surface or an extension surface thereof of the first conductive line is defined as a first angle, an angle included between the first surface and the second inclined surface or an extension surface thereof of the second conductive line is defined as a second angle, and the first angle is different from the second angle.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: April 11, 2017
    Assignee: INNOLUX CORPORATION
    Inventors: Kuo-Hao Chiu, Peng-Cheng Huang, Hsia-Ching Chu
  • Patent number: 9612504
    Abstract: A spatially non-uniform electrode structure is proposed for controlling a spatially non-uniform electric field driving a tunable liquid crystal lens. The spatially non-uniform electrode structure enables the generation of a predetermined spatially non-uniform electric field profile where complex capacitive coupling between multiple different electrically floating neighboring electrode segments is employed for the generation of the electrical field of desired form by supplying an initial electric potential to a limited number of electrodes.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: April 4, 2017
    Assignee: LENSVECTOR INC.
    Inventors: Tigran Galstian, Vladimir Presniakov, Karen Asatryan, Amir Tork, Armen Zohrabyan, Aram Bagramyan, Simon Careau
  • Patent number: 9599863
    Abstract: A liquid crystal display (LCD) panel, a manufacturing method thereof and an LCD device are provided. The LCD panel comprises: a first substrate and a second substrate arranged oppositely to form a liquid crystal cell; and post spacers disposed between the first substrate and the second substrate. The post spacers are prepared by shape memory polymer (SMP) materials. One end of the post spacers is disposed on the first substrate and the other end is opposite to the second substrate.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: March 21, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaojuan Wu, Wenqing Zhao
  • Patent number: 9599833
    Abstract: An optical device and an optical panel are provided. The optical device including an optical layer whose optical axes or light absorption axes are shifted continuously is provided. The optical device can be used to adjust characteristics of light in electronic devices such as display devices, or can be used for various applications requiring a continuous change in an optical axis or light absorption axis, including use of windows or shades of buildings or automobiles.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: March 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sin Young Kim, Moon Soo Park, Bu Gon Shin, Hyuk Yoon
  • Patent number: 9594276
    Abstract: Provided is an optical diffraction element that restricts overall thickness of the element while maintaining strength. The optical diffraction element comprises a substrate; an orientation layer that is formed on one surface of the substrate and includes anisotropic polymers that are oriented perpendicular to or inclined relative to a surface of the substrate in at least a partial region of the orientation layer; and a liquid crystal layer formed on the orientation layer. The liquid crystal layer includes a plurality of orientation patterns that are formed periodically and include liquid crystal molecules having different orientation directions, and the orientation direction for at least some of the orientation patterns is perpendicular to or inclined relative to the surface of the substrate, as a result of aligning with the orientation of the orientation layer formed on a bottom surface of the orientation patterns.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: March 14, 2017
    Assignee: ARISAWA MFG. CO., LTD.
    Inventors: Yasuaki Umezawa, Kenichi Watabe
  • Patent number: 9575365
    Abstract: A method of manufacturing a liquid crystal display device including a TFT substrate with display and peripheral regions. The display region has pixels each having a pixel electrode and a TFT. A counter substrate opposes the TFT substrate and has a color filter formed at a position corresponding to a position at which the pixel electrode is formed above the TFT substrate. The method includes coating, outside of the display region of the TFT substrate, a second alignment film in the shape of a frame, and coating, in the display region, a first alignment film that dries more slowly than the second alignment film. The first and second alignment films are in contact, and the second alignment film is thicker than the first alignment film.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: February 21, 2017
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tomoyuki Shiromoto, Toshirou Iwata, Rai Yang, Shinichi Soto
  • Patent number: 9568778
    Abstract: A liquid crystal display (LCD) panel, a manufacturing method thereof and an LCD device are provided. The LCD panel comprises: a first substrate and a second substrate arranged oppositely to form a liquid crystal cell; and post spacers disposed between the first substrate and the second substrate. The post spacers are prepared by shape memory polymer (SMP) materials. One end of the post spacers is disposed on the first substrate and the other end is opposite to the second substrate.
    Type: Grant
    Filed: December 4, 2014
    Date of Patent: February 14, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaojuan Wu, Wenqing Zhao
  • Patent number: 9557611
    Abstract: An exemplary embodiment of the present inventive concept provides a liquid crystal display including: a substrate on which a thin film transistor is disposed; a pixel electrode disposed on the thin film transistor to be connected to the thin film transistor; a liquid crystal layer disposed on the pixel electrode and disposed within a microcavity having an injection hole; a roof layer disposed on the microcavity; and a capping layer disposed on the roof layer and around the injection hole, the capping layer including particles.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: January 31, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee Keun Lee, Myeong Hee Kim, Han Joon Yoo, Dae Ho Lee
  • Patent number: 9551902
    Abstract: Provided is a liquid crystal display device. The liquid crystal display device includes a first substrate and a second substrate configured to face each other, a liquid crystal layer positioned between the first and second substrates, a first alignment film positioned between the liquid crystal layer and the first substrate, and a second alignment film positioned between the liquid crystal layer and the second substrate. Here, at least one of the first alignment film and the second alignment film includes a double layer of an alignment base film that is aligned so as to have a pretilt angle and an alignment control film that has polymerized mesogen.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: January 24, 2017
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventor: Jae-Hoon Kim
  • Patent number: 9547111
    Abstract: A polarized light modulation device and a manufacturing method thereof are provided. Oppositely disposed first and second transparent electrode substrates are provided. Polymerizable monomers and cholesteric liquid crystals are filled between the first and second substrates. Different operating voltages are applied between the first and second substrates by at least two times to change a helical pitch of the cholesteric liquid crystals. Light irradiation passing through the first or second substrate is performed on the polymerizable monomers in one of different domains after each time of applying one of the operating voltages to solidify the changed helical pitch of the cholesteric liquid crystals. Solidified helical pitches of the cholesteric liquid crystals in the different domains are different. A recovery voltage is applied between the first and second substrates to retrieve an optical rotatory property of the cholesteric liquid crystals back to the state of solidifying.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: January 17, 2017
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuan Xiong
  • Patent number: 9513511
    Abstract: The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer composition (A) and a solvent (B). The polymer composition (A) is synthesized by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The aforementioned liquid crystal alignment agent has a better process stability, and the liquid crystal alignment film made by the liquid crystal alignment agent could improve the reliability of the liquid crystal display element.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: December 6, 2016
    Assignee: CHI MEI CORPORATION
    Inventor: Tsung-Pei Tsai
  • Patent number: 9510444
    Abstract: The present invention aims to provide a substrate having an ITO with a low ITO pattern visibility, which substrate is formed by a method utilizing a simple technique such as coating, printing or the like, and which method is less burdensome from the viewpoints of cost and process; and to provide a touch panel member using the substrate. The present invention provides a substrate including a region where thin layers are laminated on a transparent ground substrate, which thin layers are, in the order mentioned from the upper surface of the substrate: an ITO (Indium Tin Oxide) thin layer (I); an organic thin layer (II) having a film thickness of from 0.01 to 0.4 ?m and a refractive index of from 1.58 to 1.85; and a transparent adhesive thin layer (III) having a refractive index of from 1.46 to 1.52.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: November 29, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hitoshi Araki, Mitsuhito Suwa
  • Patent number: 9500908
    Abstract: A display panel comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first transparent conductive layer and a first alignment layer. The first transparent conductive layer includes a first surface and has at least a first notch, the first alignment layer includes a first part and a second part, the first part is disposed in the first notch, the second part is disposed on the first surface, and the surface roughness of the first part of the first alignment layer is greater than that of the second part. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate. A display device having the display panel is also disclosed.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: November 22, 2016
    Assignee: INNOLUX CORPORATION
    Inventors: Cheng-Hsiung Chen, Yu-Lin Yeh, An-Chang Wang, Yi-Ching Chen
  • Patent number: 9500915
    Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal layer, a first pixel electrode, a second pixel electrode and an auxiliary electrode. The first pixel electrode includes a first corner portion, a second corner portion and a side edge portion. A first video signal is input in the first pixel electrode. A second video signal of polarity different from polarity of the first video signal is input in the second pixel electrode. The auxiliary electrode includes a first region and a second region. A voltage of the same polarity as the polarity of the first video signal is supplied to the auxiliary electrode.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: November 22, 2016
    Assignee: Japan Display Inc.
    Inventor: Yasushi Kawata
  • Patent number: 9488869
    Abstract: The present invention provides a liquid crystal display device that sufficiently reduces image sticking, by forming a polymer layer with stable alignment control appropriately. In a method for manufacturing the liquid crystal display device of the present invention, base film forming conditions are different between the step of forming a base film on a substrate including an active element and the step of forming a base film on a substrate different from the substrate including an active element.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: November 8, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akira Hirai, Hiroaki Asagi, Isamu Miyake
  • Patent number: 9448441
    Abstract: A plurality of grooves (28) are provided in a surface of the array substrate (20) facing the liquid crystal layer (50) to extend along a sealing material, and are spaced apart from each other in a width direction of the sealing material. An alignment film (27) covers surfaces of some or all of the grooves located from a midway portion of the sealing material in a width direction thereof toward a display region (D), and is in contact with the sealing material, and part of the sealing material located from the midway portion in the width direction in a direction away from the display region is directly in contact with the array substrate without the alignment film being provided between the seal material and the array substrate.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: September 20, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroyuki Moriwaki
  • Patent number: 9442323
    Abstract: A liquid crystal panel, a display device and a method of manufacturing the liquid crystal panel are provided. In the liquid crystal panel according to the embodiments, the orientation of the liquid crystal molecules (40) corresponding to a pixel display region (1) is different from the orientation of the liquid crystal molecules (40) corresponding to a wiring region (2), such that the deflection angle of the liquid crystal molecules corresponding to the pixel display region is inconsistent with that of the liquid crystal molecules corresponding to the wiring region upon the liquid crystal panel being supplied with power. The display device according to the embodiments comprises the liquid crystal panel of the present invention. The method of manufacturing the liquid crystal panel according to the embodiments comprises making the pretilt angle of the alignment layer of the wiring region (2) on the array substrate (10) larger than that of the alignment layer of the pixel display region (1).
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: September 13, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tao Sun, Shiming Shi, Ling Shi
  • Patent number: 9437821
    Abstract: When a thin film is formed by an application method, damage to a substrate or existing electrodes and functional layers can be reduce. A method for manufacturing an electronic device comprising two or more electrodes, and an organic thin film provided between the two or more electrodes, the method comprising the steps of: forming a coating film by applying a coating liquid that comprises a material having a crosslinking group, and forming the organic thin film by repeating an irradiation of electromagnetic waves to the coating film to cross-link with the crosslinking group.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: September 6, 2016
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kouichi Rokuhara, Shuichi Sassa
  • Patent number: 9417484
    Abstract: A liquid crystal display includes; a first substrate, a second substrate disposed facing the first substrate, an alignment layer disposed on at least one of the first substrate and the second substrate, wherein the alignment layer comprises a major alignment material and a vertical photo-alignment material, and the vertical photo-alignment material comprises a first vertical functional group, and a liquid crystal layer interposed between the first substrate and the second substrate.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun-Woo Lee, Jong-Sung Bae, Hoi-Lim Kim, Baek-Kyun Jeon, Suk-Hoon Kang, Jin-Soo Jung, Soo-Ryun Cho
  • Patent number: 9411197
    Abstract: This liquid crystal display panel (100A) includes: first and second substrates (10A, 20A) which are arranged to face each other with a liquid crystal layer (30A) interposed between them; a counter electrode (24) formed on one of the first and second substrates (10A, 20A); a first alignment film (16a) formed on one side of the first substrate (10A) to face the liquid crystal layer (30A); and a second alignment film (26a) formed on one side of the second substrate (20A) to face the liquid crystal layer (30A). In a pixel, the liquid crystal layer (30A) has a low-pretilt region (R1a) and a high-pretilt region (R2a) in which liquid crystal molecules (32) have mutually different pretilt angles. The counter electrode (24) includes a plurality of sub-counter electrodes which are electrically independent of each other.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: August 9, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kunihiro Tashiro, Hideki Fujimoto
  • Patent number: 9383610
    Abstract: A display panel includes a first substrate having a first alignment film, a second substrate having a second alignment film and plural spacers, a liquid crystal layer disposed between the first and second substrates, and a plurality of agglomerates positioned between the first and second alignment films and further surrounding at least one of the spacers. The spacers maintain a uniform gap between the first and second substrates. The second alignment film is disposed oppositely to the first alignment film and covers the spacers. In one embodiment, sizes of the agglomerates are distributed in a range of 0.1 ?m˜2 ?m.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: July 5, 2016
    Assignee: INNOLUX CORPORATION
    Inventors: Cheng-Hsiung Chen, Yu-Lin Yeh, An-Chang Wang, Yi-Ching Chen
  • Patent number: 9354477
    Abstract: A liquid crystal display includes a substrate, a thin film transistor, a first protection layer, a pixel electrode, a light blocking layer, a second protection layer, and a roof layer. The thin film transistor is disposed on the substrate. The first protection layer is disposed on the thin film transistor. The pixel electrode is disposed on the first protection layer. The light blocking layer is disposed on the pixel electrode to cover the thin film transistor. The second protection layer is disposed on the light blocking layer. The roof layer is disposed to face the pixel electrode, wherein a plurality of microcavities having injection holes are formed between the pixel electrode and the roof layer. The microcavities comprise liquid crystal molecules, and the first protection layer and the second protection layer have different etch rates.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 31, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Seong Yang, Dae Ho Lee, Yong Seok Kim, Han Joon Yoo, Seon Uk Lee
  • Patent number: 9348180
    Abstract: The present invention relates to a method for fabricating an LCD panel. The method includes the steps of: (A) forming a black matrix layer on a color filter substrate; and (B) attaching the color filter substrate to a corresponding array substrate for forming a liquid crystal cell, and applying a voltage on the black matrix layer for liquid crystal molecules in the liquid crystal cell being arranged at a pretilt angle. The fabricating method of the present invention can realize photo alignments on multiple partitions without demand in shapes of the pixel electrodes.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: May 24, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jun Wang
  • Patent number: 9341363
    Abstract: A digital reading device with cosmetic function includes a base plate, a lighting panel, a driving unit and a transparent touch panel. The base plate includes a plurality of black units. The lighting panel is disposed on the base plate and includes as plurality of lighting units for emitting a green light. The driving unit is electrically connected to the lighting panel and the base plate, wherein the driving unit is for turning on or turning off each of the lighting units respectively. The transparent touch panel is disposed on the lighting panel for displaying a message composed of the black units. The message may also be white-colored on a green background color with various saturation levels whenever the lighting panel includes a plurality of displaying units, and each of the displaying units consists of two lighting units with complimentary colors.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: May 17, 2016
    Assignee: GCSOL Tech Co., Ltd.
    Inventors: Fang-Chuan Ho, Jui-Fen Pai
  • Patent number: 9341015
    Abstract: An energy-efficient film is provided. The film includes a first transparent substrate, a second transparent substrate, a liquid crystal layer provided between the first transparent substrate and the second transparent substrate, and a gasket provided on an outer edge of the liquid crystal layer. The gasket may also be provided on outer edges of the first transparent substrate and the second transparent substrate.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 17, 2016
    Assignee: NEXEON ENERGY SOLUTIONS LLC
    Inventors: Primal M. Fernando, Stephen E. Fischer
  • Patent number: 9315668
    Abstract: A liquid crystal display includes: a first insulation substrate; a second insulation substrate facing the first insulation substrate; a pixel electrode provided on the first insulation substrate; a common electrode provided on the first insulation substrate or the second insulation substrate; an alignment layer member including a first alignment layer and a second alignment layer provided on the first insulation substrate and the second insulation substrate, respectively; and a liquid crystal layer provided between the first insulation substrate and the second insulation substrate, wherein at least one of the first alignment layer and the second alignment layer includes a main chain and a plurality of side chains connected to the main chain, and the side chain includes a reactive mesogen (RM) including a functional group for increasing rigidity of the alignment layer.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Hyun Ku Ahn
  • Patent number: 9316873
    Abstract: A liquid crystal display includes a first substrate, a gate line disposed on the first substrate and extending parallel to a major horizontal reference line of the display, and a plurality of pixel unit cells disposed on and tesslating a display area of the first substrate where each unit cell includes a first field generating electrode and a second field generating electrode with an insulating layer interposed therebetween, wherein a first one of the first and second field generating electrodes has a plurality of cutouts defined therein for producing corresponding liquid crystal domains, the plurality of cutouts each including a first inclined edge portion forming a first angle with the vertical reference line and a second inclined edge portion forming a second angle with the vertical reference line that is different from the first angle, wherein a ratio of a length of the first inclined edge portion to a length of the cutout is about 80% or more, and the density of the plurality of pixels is about 200 PPI o
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soo Jeong Huh, Yang Hee Kim, Sung In Ro
  • Patent number: 9313898
    Abstract: An electrical component that includes a substrate and a polymeric layer oriented in working relation with the substrate, the polymeric layer including a low molecular mass polyimide.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: April 12, 2016
    Assignee: Infineon Technologies AG
    Inventors: Manfred Mengel, Joachim Mahler
  • Patent number: 9291857
    Abstract: Provided is a liquid crystal display device reducing display unevenness and image sticking even though employing a PSA polymerization step in which monomers are added to a liquid crystal layer. The liquid crystal display device includes a pair of substrates, at least one of the substrates including an alignment film and a structure consisting of an organic insulating material; a polymer layer that is formed on the alignment film to control the alignment of liquid crystal molecules; and a liquid crystal layer containing a liquid crystal material, the layer being placed between the pair of substrates, wherein the polymer layer is formed by polymerization of one or more kinds of radical polymerizable monomers contained in the liquid crystal layer, and at least one kind of the radical polymerizable monomers includes a structure which generates radicals through self-cleavage reaction by light irradiation and two or more radical polymerizable groups.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: March 22, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yasuyuki Ohnishi, Masanobu Mizusaki
  • Patent number: 9285520
    Abstract: A color filter including a substrate and a green photoresist is provided. The green photoresist is disposed on the substrate, and the spectrum function thereof has a first peak within a wavelength window between 480 nm and 550 nm. Whereas a transmittance intensity of the spectrum function of green photoresist at wavelength 750 nm is greater than that of 0.5 times of the transmittance intensity of the first peak. An optical touch display device with the color filter is also provided.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: March 15, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Chien-Kai Chen, Chia-Hao Li, Chen-Hsien Liao
  • Patent number: 9285636
    Abstract: An image retention phenomenon and black unevenness generated after long-time operation in the liquid crystal device are prevented. By using a material having a polyamide acid ester as a precursor less likely to adsorb impurities on a boundary for an alignment film and a material having a dielectric constant anisotropy ?? of 5 or less for liquid crystals, adsorption of an antioxidant dispersed in the liquid crystals is suppressed to prevent oxidation of the liquid crystals. The extent that impurities are intruded into the liquid crystals is reduced by restricting the dielectric constant anisotropy ?? of the liquid crystals to 5 or less, thereby capable of preventing the image retention phenomenon and the black unevenness.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: March 15, 2016
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noboru Kunimatsu, Chikae Matsui, Shigeru Matsuyama, Masaki Matsumori, Yasushi Tomioka, Katsumi Kondo
  • Patent number: 9280923
    Abstract: A display device includes a first scan line, a second scan line, a third scan line, a data line, a pixel, a low color-shifting circuit, and a black zone generation circuit. In the low color-shifting circuit, a low color-shifting switch receives a third scan signal from the third scan line to selectively couple a compensating capacitor to the second sub-pixel electrode. The black zone generation circuit receives a black zone generation signal to selectively couple either the first sub-pixel electrode or the second sub-pixel electrode to a common node such that either the first sub-pixel or the second sub-pixel becomes a black zone.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: March 8, 2016
    Assignee: InnoLux Corporation
    Inventors: Chien-Hung Chen, Ying-Jen Chen
  • Patent number: 9274384
    Abstract: One of the objects of the present invention is to provide a liquid crystal display device with high transmittance or viewing angle characteristics. A liquid crystal display device of the present invention includes: a first substrate (10) which includes a pixel electrode (30); a second substrate (20) which includes a counter electrode (25); and a liquid crystal layer (21) and a spacer (40) which are provided between the first substrate (10) and the second substrate (20). The pixel electrode (30) includes a first portion which is formed by a plurality of first branch portions (34A) extending in a first direction, a second portion which is formed by a plurality of second branch portions (34B) extending in a second direction, a third portion which is formed by a plurality of third branch portions (34C) extending in a third direction, and a fourth portion which is formed by a plurality of fourth branch portions (34D) extending in a fourth direction.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: March 1, 2016
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masahiro Yoshida
  • Patent number: 9276122
    Abstract: Disclosed herein is a thin-film transistor having a gate electrode; a source electrode and a drain electrode which form a source/drain-electrode pair; and a channel layer which is provided between the gate electrode and the source/drain-electrode pair, includes a poly-crystal oxide semiconductor material and has a film thickness smaller than the average diameter of crystal grains of the poly-crystal oxide semiconductor material.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: March 1, 2016
    Assignee: JOLED INC.
    Inventor: Mikihiro Yokozeki
  • Patent number: 9268164
    Abstract: A manufacturing method of a liquid crystal display includes: providing a pixel electrode on an insulation substrate; providing a sacrificial layer on the pixel electrode; providing a common electrode on the sacrificial layer; providing a photoresist layer on the common electrode; exposing a portion of the photoresist layer, common electrode and the sacrificial layer with light; developing the portion of the photoresist layer exposed with the light; etching a layer between the photoresist layer and the sacrificial layer using the developed photoresist layer as a mask to expose the portion of the sacrificial layer exposed with the light; removing the portion of the sacrificial layer exposed with the light; providing a roof layer on the insulation substrate and etching the roof layer to form a liquid crystal injection hole therein; and removing the sacrificial layer exposed through the liquid crystal injection hole to form a microcavity.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Woo Lim, Kyung Tae Chae, Sung Hwan Won, Seon Uk Lee, Jun Heui Lee
  • Patent number: 9256104
    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: Grant
    Filed: April 17, 2015
    Date of Patent: February 9, 2016
    Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu, Yuko Matsumoto
  • Patent number: 9207494
    Abstract: A display device includes a display area and a non-display area, a first alignment layer disposed on a first substrate, a second alignment layer disposed on a second substrate, a liquid crystal layer disposed between the first alignment layer and the second alignment layer; and a groove disposed in the non-display area of the second substrate to correspond to at least a portion of an end portion of the second alignment layer. The groove is provided along at least one side of the display area and is configured to be filled by an alignment solution used to from the second alignment layer and prevent the alignment solution from dispersing to other areas of the second substrate.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: December 8, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Myoung Lee, Suwan Woo, Jang-Il Kim, Swae-Hyun Kim, Jae Hwa Park, Je Hyeong Park, Younggoo Song, Hyunggi Jung, Kipyo Hong, Sang Woo Whangbo
  • Patent number: 9207497
    Abstract: A method for preparing an alignment film (6), a method for performing alignment of the alignment film (6), as well as a multi-dimensional liquid crystal display device manufacture using the alignment film (6). The alignment film (6) generated by the preparation method is a light sensitive alignment film (6), which can generate directions of orientation perpendicular or parallel to the polarization direction under different dosages of linearly polarized ultraviolet light (10). By adjusting the polarization direction or dosage of the linearly polarized ultraviolet light (10), multi-dimensional orientations of the alignment film (6) is achieved. Manufacture of a multi-dimensional liquid crystal display device using a substrate (1) having the alignment film (6) with multi-dimensional orientations avoids the manufacture of the multi-dimensional electrode, and reduces costs and difficulty of process.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: December 8, 2015
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wei Li, Ang Xiao, Hongliang Yuan, Kaixuan Wang