For Perpendicular Alignment Patents (Class 349/130)
  • Patent number: 11312906
    Abstract: A problem to be solved by the present invention is to provide a liquid crystal composition excellent in vertical alignment and compatibility and to provide a liquid crystal display device produced using the same. The problem is solved by a liquid crystal composition containing one or two or more kinds of self-aligning polymerizable monomers and one or two or more kinds of polymerizable monomers (or polymerizable compounds) having a specific chemical structure, and a liquid crystal display device produced using the same, specifically a liquid crystal composition containing a polymerizable monomer represented by General Formula (I) and a spontaneously aligning monomer which has a chemical structure different from that of the polymerizable monomer represented by General Formula (I), and has a polar group, and a liquid crystal display device containing the same.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: April 26, 2022
    Assignee: DIC CORPORATION
    Inventors: Junichi Mamiya, Yuichi Inoue, Masaomi Kimura, Junko Yamamoto, Masanao Hayashi, Hirokazu Sugiyama
  • Patent number: 11314132
    Abstract: An array substrate and a display panel are provided. The array substrate includes a substrate, a thin film transistor layer disposed on the substrate, and a pixel electrode layer disposed on the thin film transistor layer. The pixel electrode layer includes a plurality of pixel regions, and the pixel regions include a first pixel region and a second pixel region. A pixel electrode in the second pixel region is disposed along an outer boundary of the first pixel region, or a pixel electrode in the first pixel region is disposed along an outer boundary of the second pixel region.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 26, 2022
    Assignee: TCL China Star Optoelectrenics Technology Co., Ltd.
    Inventors: Kaili Qu, Yoonsung Um
  • Patent number: 11287686
    Abstract: The disclosure provides a liquid crystal display device and a manufacturing method thereof. The liquid crystal display device comprises a liquid crystal unit, a pair of polarizers and an optical compensation film. The liquid crystal unit comprises a first substrate, a second substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The polarizers clamp the liquid crystal unit. The optical compensation film is disposed between the polarizers and the liquid crystal unit. The optical compensation film comprises a first film layer, a second film layer, a third film layer and a fourth film layer which are stacked together, and respectively have a first refractive index, a second refractive index, a third refractive index and a fourth refractive index with different values. The first refractive index is smaller than the second refractive index. The third refractive index is smaller than the fourth refractive index.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: March 29, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huailiang He
  • Patent number: 11274254
    Abstract: Liquid-crystalline media (LC media) comprising self-aligning mesogens (self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The self-alignment additives contain five-ring systems. LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without conventional alignment layers are provided.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 15, 2022
    Assignee: Merck Patent GmbH
    Inventors: Melanie Klasen-Memmer, Edward Plummer, Rocco Fortte, Helmut Haensel, Timo Uebel, Tamara Lehmann
  • Patent number: 11175550
    Abstract: A liquid crystal display panel and a display device. The liquid crystal display panel includes a display region and an opening region in the display region; the display region includes a plurality of sub-pixels, the display region includes a first edge and a second edge opposite to the first edge, the display region includes a first region between the opening region and the first edge and a second region between the opening region and the second edge, an orthographic projection of the opening region on the first edge respectively coincides with orthographic projections of the first region and the second region on the first edge, the plurality of sub-pixels comprise a main sub-pixel in the first region and a secondary sub-pixel in the second region, and an area of the main sub-pixel is smaller than an area of the secondary sub-pixel.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: November 16, 2021
    Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yun Qiao, Han Zhang, Kai Chen, Zhen Wang, Zhengkui Wang, Wenwen Qin, Wei Yan, Jian Zhang, Xiaozhou Zhan, Deshuai Wang, Jian Sun
  • Patent number: 11069312
    Abstract: According to one embodiment, an electronic device includes a display panel having a plurality of pixels arranged in a matrix. Gray levels of the pixels are determined according to a gray level of a first frame, a gray level of a second frame and positions of the pixels in the matrix.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventor: Yoshihiro Watanabe
  • Patent number: 11036112
    Abstract: In order to configure or produce an electrically controllable optical element on the basis of the electro-optic Kerr effect with a low threshold and operating voltage, a minimized temperature dependence of the effect and a low response time, the Kerr liquid according to the invention comprises a mixture of rod-shaped molecules and non-rod-shaped molecules as active composites, a thin layer having a pre-stamping, wide-mesh, anisotropic network between structured and/or planar conductive layer applied to a substrate thus configure a thin-film cell in such a way that without electric field the state of the active composite of the Kerr liquid in the working temperature region RT is isotropic and that by electrically continuous adjustment, of the voltage U or by a switching-on or switching-off a change the voltage U, in the optical element a voltage-induced phase shift or a refractive index deviation is generated and the light passes through an electrode gap perpendicular to the electrodes.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 15, 2021
    Assignee: FOKUS TEC GmbH
    Inventors: Klaus Hoffmann, Joachim Stumpe, Thomas Fischer, Michael Rutloh
  • Patent number: 10977974
    Abstract: An inspection circuit is properly protected in a display device, which the driver IC is not on the terminal area. A liquid crystal display device comprising a TFT substrate having a display area, in which video signal lines are formed, and a terminal area; a counter substrate overlapping with the display area of the TFT substrate; the counter substrate and the TFT substrate are adhered by the seal material, the display area is formed in an area surrounded by the seal material; wherein the flexible wiring circuit substrate connects to the terminal area, the driver IC, which supplies video signals to the video signal lines, is not installed in the terminal area, the inspection circuit is formed between the display area and the terminal area, wherein the inspection circuit overlaps with the counter substrate in a plan view.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: April 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Hiroyuki Abe, Kentaro Agata
  • Patent number: 10941344
    Abstract: A liquid crystal cell which is capable of switching between a transparent mode and a scattering mode by using a non-ionic compound as a liquid crystal additive for realizing the EHDI characteristics and has excellent performance such as a driving voltage characteristic, a haze characteristic and reliability by securing solubility of the additive for liquid crystals. Such a liquid crystal cell can be applied to various light modulation devices such as a smart window, a window protective film, a flexible display device, a light shielding plate for transparent display, an active retarder for 3D image display, or a viewing angle adjusting film.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: March 9, 2021
    Inventors: Jung Woon Kim, Eun Jung Lim, Dong Hyun Oh
  • Patent number: 10806340
    Abstract: A server in communication with a first device capable of receiving input from a camera attached to the first device, and a second device capable of displaying output, is provided. The server is configured to receive, from the first device, data relating to characteristics of the camera and characteristics of an image obtained by the camera of a screen of the second device; determine a screen pixel length of the screen; and provide instructions to the second device to display on the screen an object at a desired visual angle in response to the data received from the second device and the screen pixel length, while the first device is positioned at an arbitrary distance from the screen.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 20, 2020
    Assignee: JAND, Inc.
    Inventor: Joseph Carrafa
  • Patent number: 10788700
    Abstract: A reflective liquid crystal display panel comprises: a first substrate, a second substrate, and a liquid crystal layer disposed therebetween; a layer of first electrode disposed between the first substrate and the liquid crystal layer; a layer of second electrode disposed between the second substrate and the liquid crystal layer and comprising a first sub-electrode and a second sub-electrode; a reflective structure disposed between the first substrate and the layer of first electrode; a first light-shielding layer disposed between the second substrate and the layer of second electrode, the first light-shielding layer having a plurality of openings including a light extraction opening; and a light extraction structure disposed on the second substrate in correspondence with the light-extraction opening, and configured to extract light from the second substrate and pass the extracted light through the light-extraction opening and the liquid crystal layer to the reflective structure.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: September 29, 2020
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Zhongxiao Li
  • Patent number: 10712596
    Abstract: A liquid crystal display includes a display substrate which includes a plurality of pixel areas and is curved in a first direction, an opposite substrate which faces the display substrate, is coupled to the display substrate, and is curved along the display substrate, and a liquid crystal layer disposed between the display substrate and the opposite substrate, where a plurality of domains are defined in each of the plurality of pixel areas, directions in which liquid crystal molecules of the liquid crystal layer are aligned are different from each other in at least two domains among the plurality of domains, and the plurality of domains is arranged in a second direction crossing the first direction.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: July 14, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Wan-Soon Im, MinWook Park, SuWan Woo, Eun-Kil Park, Jeongman Son, Changil Tae, Kee-Bum Park, Kyung-Bae Kim, Je Hyeong Park, Joohwan Park, Yu Deok Seo, Seungho Yang, Sejoon Oh, Heehwan Lee
  • Patent number: 10695753
    Abstract: The invention relates to a composition that contains a first semiconductor SC1, particles that comprise one or more element(s) M in the metal state selected from among an element of groups IVB, VB, VIB, VIIB, VIIIB, IB, IIB, IIIA, IVA and VA of the periodic table, and a second semiconductor SC2 that comprises indium oxide, with said first semiconductor SC1 being in direct contact with said particles that comprise one or more element(s) M in the metal state, with said particles being in direct contact with said second semiconductor SC2 that comprises indium oxide in such a way that the second semiconductor SC2 covers at least 50% of the surfaces of the particles that comprise one or more element(s) M in the metal state. The invention also relates to its preparation method as well as its application of photocatalysis.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: June 30, 2020
    Assignees: Centre National de la Recherche Scientifique, Universite Claude Bernard-Lyon 1, IFP Energies Nouvelles
    Inventors: Dina Lofficial, Antoine Fecant, Denis Uzio, Eric Puzenat, Christophe Geantet
  • Patent number: 10677968
    Abstract: A display device, a method for manufacturing the same, and a head mounted display including the same are disclosed, in which mixing of colors may be avoided. The display device comprises a black matrix covering an edge of a first color filter and a second color filter an edge of the black matrix.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 9, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JongSung Kim, ChoongKeun Yoo
  • Patent number: 10649286
    Abstract: A liquid crystal display (LCD) device comprising: a substrate on which an active area that transmits light therethrough is defined; and a pixel electrode disposed on the substrate, wherein the pixel electrode includes a first stem electrode, which extends along a first direction, a second stem electrode, which extends along a second direction that is perpendicular to the first direction and intersects the first stem electrode to be divided into two halves by the first stem electrode, a third stem electrode, which extends along the second direction and is connected to the first stem electrode to be divided into two halves by an end of the first stem electrode, and a plurality of branch electrodes, which extend from the first through third stem electrodes.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Soo Bae, Jung Suk Bang, Min Jeong Oh, Bo Ram Lee, Young Je Cho
  • Patent number: 10564756
    Abstract: Disclosed is a display apparatus having a module area in a display panel, the display apparatus includes a display panel having an active area including at least one module area and a bezel area positioned outside the active area; and a pixel array positioned on a substrate in the active area, wherein the at least one module area includes the substrate of the display panel and has a thickness smaller than that of the active area excluding the at least one module area.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Cheolhwan Lee, Soonhwan Hong
  • Patent number: 10558092
    Abstract: A high-definition liquid crystal display device is provided. A liquid crystal display device with a high aperture ratio is provided. A liquid crystal display device with a high contrast ratio and display quality is provided. A liquid crystal display device capable of being driven at a low voltage is provided. The display device includes, between a pair of substrates, a pixel electrode, a first common electrode, a second common electrode, and a liquid crystal layer. The pixel electrode and the first common electrode are positioned between the liquid crystal layer and one of the substrates. The second common electrode is positioned between the liquid crystal layer and the other substrate. The same potential is supplied to the first common electrode and the second common electrode. The first common electrode includes a portion overlapping with the second common electrode between the display regions of two adjacent subpixels that exhibit different colors.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: February 11, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shuhei Yoshitomi, Daisuke Kubota, Koji Kusunoki
  • Patent number: 10538704
    Abstract: Disclosed are liquid-crystalline media (LC media) comprising a low-molecular-weight component and a polymerisable component. The polymerisable component contains self-aligning, polymerisable meso-gens (polymerisable self-alignment additives) which effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). Disclosed are also LC displays having homeotropic alignment of the LC medium without alignment layers. Further disclosed are the structures for polymerisable self-alignment additives.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 21, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Graziano Archetti, Edward Plummer, Helmut Haensel, Rocco Fortte, Timo Uebel
  • Patent number: 10534221
    Abstract: Display module and display device are provided. The display module includes a cover plate, a display screen, and a backlight module. The display screen includes a display region, a first non-display region, and at least one first hollowed-out part. The at least one first hollowed-out part penetrates through the display screen. The backlight module includes a metal frame and at least one second hollowed-out part penetrating through the backlight module. The metal frame includes a main part and a first bending part connected to the main part. The first bending part is disposed on inner sidewalls of the at least one second hollowed-out part and is opaque. The first bending part intersects a plane for the main part; and one end of the first bending part away from the main part extends inside the at least one first hollowed-out part.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: January 14, 2020
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Zhiqiang Zhu
  • Patent number: 10502999
    Abstract: Provided are a light controlling apparatus and a method of fabricating the same. The light controlling apparatus includes: a first electrode unit and a second electrode unit facing each other; a liquid crystal unit between the first electrode unit and the second electrode unit, the liquid crystal unit including a liquid crystal; a wall having a first polymer being polymerized from a first monomer the first monomer having a higher diffusion speed than a second monomer; and a network having a second polymer being polymerized from the second monomer, the second monomer having a lower diffusion speed than the first monomer.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 10, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Kihan Kim, Jiyoung Ahn, Moonsun Lee, Pureum Kim, Seokwon Ji
  • Patent number: 10437097
    Abstract: Disclosed are a spatial light modulator and a display device, where 2*2 adjacent pixel electrodes are a pixel group, through-holes corresponding to the respective pixel electrodes are located proximate to the center of the pixel group, and a photo spacer is located at the center of the pixel group, so that the photo spacer can overlap with the through-holes, or the photo spacer can be arranged in close proximity to the through-holes. If the photo spacer overlaps with the through-holes, then a black matrix layer covering the photo spacer, and a black matrix layer covering the surrounding of the photo spacer may cover at least a part of the through-holes; and if the photo spacer is arranged in close proximity to the through-holes, then the black matrix layer covering the surrounding of the photo spacer may cover at least a part of the through-holes.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: October 8, 2019
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Jialing Li, Lei Niu, Jian Xu, Yaoyang Liu
  • Patent number: 10409113
    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: Grant
    Filed: August 7, 2012
    Date of Patent: September 10, 2019
    Assignee: 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
  • Patent number: 10359678
    Abstract: In various embodiments magnetically actuated liquid crystals are provided as well as method of manufacturing such, methods of using the liquid crystals and devices incorporating the liquid crystals. In one non-limiting embodiment the liquid crystals comprise Fe3O4 nanorods where the nanorods are coated with a silica coating.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: July 23, 2019
    Assignee: The Regents of the University of California
    Inventors: Yadong Yin, Mingsheng Wang
  • Patent number: 10344216
    Abstract: The present invention provides a liquid crystal display device that is less prone to display defects and a decrease in the voltage holding ratio regardless of the presence or absence of an alignment film. The liquid crystal display device includes: a pair of substrates; a liquid crystal layer containing a liquid crystal material between the substrates; and a polymer layer for controlling alignment of liquid crystal molecules on a surface of at least one of the substrates, the substrates being substantially free of an alignment film in outermost surfaces thereof, the polymer layer being formed by polymerization of at least two kinds of radical polymerizable monomers in the liquid crystal layer, at least one of the radical polymerizable monomers being a compound having a structure that creates a ketyl radical as a result of hydrogen abstraction induced by light radiation.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: July 9, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Masayuki Kanehiro, Masanobu Mizusaki
  • Patent number: 10325543
    Abstract: A liquid crystal display (LCD) system comprising: an LCD panel having a plurality of pixels arranged in an array having a plurality of columns and a plurality of rows; a sensor configured to detect a position of an observer in relation to the LCD panel; pixel control circuitry configured supply electrical signals to drive the plurality of pixels; and gamma correction circuitry associated with the pixel control circuitry, the gamma correction circuitry configured to implement gamma correction upon the electrical signals that drive the plurality of pixels that is based on a detected position of the observer with relation to the LCD panel. Associated methods are also described.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: June 18, 2019
    Assignee: A.U. VISTA INC.
    Inventors: Chia-Wei Hao, Fang-Chen Luo, Wei-Chih Hsu
  • Patent number: 10308874
    Abstract: The liquid crystal material of the disclosure includes liquid crystal molecules, polymerizable monomers and a vertical alignment agent, wherein the polymerizable monomers and the vertical alignment agent can be polymerized under ultraviolet irradiation to form a polymer, while the polymer deposits on a substrate to form a polymer film capable of replacing the PI alignment film; so that an alignment process of the liquid crystal is simplified, and a cost is economized. The method of fabricating the liquid crystal display panel of the disclosure eliminates the fabricating process of the alignment film.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: June 4, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Song Lan, Yungjui Lee
  • Patent number: 10301546
    Abstract: The liquid crystal display element uses a liquid crystal composition which has a negative value of dielectric anisotropy (??) and is designed to improve light transmittance adjusting an elastic constant, and a liquid crystal display including the liquid crystal display element. The liquid crystal display element uses a liquid crystal composition having a dielectric anisotropy (??) of less than ?1.5, in which a value of ? of the liquid crystal composition is 0.3 or less, and the value of ? is obtained from Equation (2) using measured values of a splay elastic constant (K11) and a bend elastic constant (K33) of the liquid crystal composition and a twist elastic constant (K22) value obtained from Equation (1) using measured values of a threshold voltage (Vth), a bend elastic constant (K33), vacuum permittivity (?0), a cell gap (d), and a helical pitch (P0).
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: May 28, 2019
    Assignee: DIC CORPORATION
    Inventors: Tsuyoshi Sasaki, Hidenari Akiyama, Yasuo Umezu, Kazunori Maruyama, Haruki Ohishi, Shinji Ogawa, Yoshinori Iwashita
  • Patent number: 10120239
    Abstract: In a provided vertical alignment method, a pixel region, and the pixel region is divided into four sub regions of equal sizes which each is designed to be a square, and a pattern unit on the mask comprises a photic region corresponding to one sub region and a shading region corresponding to the other three sub regions in shape and size. The mask is employed to implement linear UV light irradiation to one sub region according to a certain irradiation angle to obtain a alignment direction of the one sub region, and then, the position of the mask and the certain irradiation angle of the irradiation are maintained to be unchanged. By rotating the pixel region 90° with three times, and the irradiation is implemented to the other three sub regions. Accordingly, the four sub regions have four alignment directions different from one another.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: November 6, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chao Ma, Xiaolong Ma, Yungjui Lee
  • Patent number: 9939700
    Abstract: The present invention discloses a display panel comprises: a cholesteric liquid crystal cell configured to convert a light passing therethrough into a polarized light; a first light modulator, which is provided at a light output side of the cholesteric liquid crystal cell and directly contacts the cholesteric liquid crystal cell, configured to generate a phase retardation in the polarized light passing therethrough so as to modulate a polarization of the polarized light; a first linear polarizer provided at a side of the first light modulator opposite from the cholesteric liquid crystal cell and configured to selectively permit the polarized light modulated by the first light modulator to pass therethrough. The present invention also discloses a display apparatus.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 10, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingtao Wang, Suzuki Teruaki
  • Patent number: 9844924
    Abstract: A glass laminate, a display element, a display apparatus, a method of manufacturing the glass laminate, and a method of manufacturing the display panel. The glass laminate includes a carrier glass substrate; an intermediate layer stacked on the carrier glass substrate and formed of a material having a columnar grain structure; and a thin glass substrate stacked on the intermediate layer.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: December 19, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hayk Khachatryan, Chang-Mo Park, Dong-Min Lee
  • Patent number: 9829753
    Abstract: A display device includes a first light shielding area where two signal lines are arranged between the opening portions of mutually adjacent sub pixels, a second light shielding area where one signal line is arranged between the opening portions of mutually adjacent sub pixels, and a third light shielding area where one scanning line is arranged between the opening portions of mutually adjacent sub pixels. The display device further includes a first spacer arranged in the first light shielding area or the second light shielding area along the extending direction of the signal line and a second spacer arranged in the third light shielding area along the extending direction of the scanning line. The first spacer and the second spacer are arranged crosswise.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: November 28, 2017
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Toshiyuki Higano, Emi Higano
  • Patent number: 9812055
    Abstract: A display device includes: a common electrode and a pixel electrode that includes a horizontal stem, a vertical stem, and a branch. A pixel of the branch includes a first branch that extends in a first diagonal direction from the horizontal stem and the vertical stem, and a second branch that extends in a second diagonal direction from the horizontal stem and the vertical stem.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: November 7, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Hoon Jung, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin
  • Patent number: 9791700
    Abstract: Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: October 17, 2017
    Assignee: MAGIC LEAP, INC.
    Inventor: Brian T. Schowengerdt
  • Patent number: 9791742
    Abstract: A liquid crystal display device includes a liquid crystal display panel which includes an array substrate including a pixel electrode, a gate line extending in a first direction and crossing the pixel electrode, and a data line extending in a second direction substantially perpendicular to the first direction, an opposing substrate including a common electrode in which a slit extending in the first direction and overlapping the gate line is defined, and a liquid crystal layer between the array substrate and the opposing substrate, and a light diffusion film which is disposed on the liquid crystal display panel and includes a plurality of low-refractive line members which respectively extends in the first direction and arranged in the second direction.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: October 17, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seon-Ah Cho, Sang-Jae Kim, Hyoung-Joo Lee
  • Patent number: 9705004
    Abstract: A transistor whose channel is formed in a semiconductor having dielectric anisotropy is provided. A transistor having a small subthreshold swing value is provided. A transistor having normally-off electrical characteristics is provided. A transistor having a low leakage current in an off state is provided. A semiconductor device includes an insulator, a semiconductor, and a conductor. In the semiconductor device, the semiconductor includes a region overlapping with the conductor with the insulator positioned therebetween, and a dielectric constant of the region in a direction perpendicular to a top surface of the region is higher than a dielectric constant of the region in a direction parallel to the top surface.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 11, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiyuki Kobayashi, Shinpei Matsuda, Daisuke Matsubayashi, Hiroyuki Tomisu
  • Patent number: 9678393
    Abstract: A liquid crystal display (LCD) panel, a display apparatus and a method for driving the display apparatus capable of providing a LCD panel having good display quality are provided. The liquid crystal display panel comprises: a first substrate (11) and a second substrate (21) opposite to each other, a pixel array provided on the first substrate (11), and a liquid crystal layer (3) between the first substrate (11) and the second substrate (21). The liquid crystal display panel further comprising a first common electrode (12) disposed on a side of the first substrate (11) close to the liquid crystal layer (3) and a second common electrode (22) disposed on a side of the second substrate (21) close to the liquid crystal layer (3). A first pixel electrode (1) and a second pixel electrode (2) are disposed on the first substrate (11). The second common electrode (22) has no overlap region directly facing the first pixel electrode (1) and/or the second pixel electrode (2).
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: June 13, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chang Xie, Jianshe Xue, Jaegeon You
  • Patent number: 9678387
    Abstract: A liquid crystal display including a first substrate; a second substrate facing the first substrate; an alignment layer disposed on at least one of the first substrate and the second substrate; a liquid crystal layer disposed between the first substrate and the second substrate and including a reactive mesogen; and bumps disposed adjacent to a surface of the alignment layer, wherein the alignment layer comprises a main chain and a plurality of side chains connected to the main chain, and the side chains comprise a polymerization inhibiting agent group.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 13, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventor: Ho Lim
  • Patent number: 9664954
    Abstract: A liquid crystal display including a light blocking member disposed on a substrate; and a first column spacer and a second column spacer disposed at a distance from each other on the light blocking member. The first column spacer includes a support portion and a column portion, and the second column spacer includes only a column portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nu Ree Um, Min Jung Kang, Hye Ran Mun, Sang Hun Lee
  • Patent number: 9658500
    Abstract: To decrease graininess in a display surface. First openings comprise third openings each having a first area that extends at a ?45 degree angle, and a second area that extends vertically, and fourth openings each having a first area that extends at a 45 degree angle, and a second area that extends vertically. Second openings comprise fifth openings each having a first area that extends at a 45 degree angle, and a second area that extends vertically, and sixth openings each having a first area that extends at a ?45 degree angle, and a second area that extends vertically. The third and the fifth openings are disposed along horizontally so that one third opening and one fifth opening adjacent to each other overlap. The fourth and the sixth openings are disposed along horizontally so that a part of one fourth opening and one sixth opening adjacent to each other overlap.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 23, 2017
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventor: Yoshihisa Iwamoto
  • Patent number: 9638947
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: an insulation substrate; a thin film transistor disposed on the substrate; a common electrode and a pixel electrode disposed on the thin film transistor to overlap each other with an insulating layer therebetween; a roof layer formed to be spaced apart from the pixel electrode with a microcavity therebetween; and a liquid crystal layer filling the microcavity. A lower portion of the roof layer includes a valley where a thickness of the roof layer is increased and a peak where the thickness of the roof layer is reduced.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: May 2, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Soo Bae, Hae Ju Yun, Yong Seok Kim, Dae Ho Song
  • Patent number: 9632371
    Abstract: The present invention discloses a display panel comprising: a cholesteric liquid crystal cell in which a cholesteric liquid crystal exhibiting a planar texture state distribution is filled; a first light modulator provided at a light output side of the cholesteric liquid crystal cell, configured to generate a phase retardation in a polarized light passing therethrough so as to modulate a polarization of the polarized light, and comprising a liquid crystal layer and a drive electrode for driving liquid crystal molecules in the liquid crystal layer to deflect so as to regulate an amount of the phase retardation of the polarized light passing through the liquid crystal layer; and a first linear polarizer provided at a side of the first light modulator opposite from the cholesteric liquid crystal cell and configured to selectively permit the polarized light modulated by the first light modulator to pass therethrough. The present invention also discloses a display apparatus.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: April 25, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Yingtao Wang, Suzuki Teruaki
  • Patent number: 9612486
    Abstract: A liquid crystal display device is provided that has favorable display characteristics in a display mode using a vertical electric field and a horizontal electric field. This liquid crystal display device includes a first substrate and a second substrate arranged facing each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The liquid crystal layer has liquid crystal molecules having a negative dielectric anisotropy, and the first substrate has a plate-shaped first common electrode and a pixel electrode formed in a separate layer from the first common electrode with an insulating film therebetween. The pixel electrode has a comb-shaped structure, and the second substrate has a second common electrode with a liquid crystal orientation structure that is linear in a plan view.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 4, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hidefumi Yoshida, Yosuke Iwata, Mitsuhiro Murata, Yasuhiro Nasu, Koichi Miyachi, Tsuyoshi Kamata
  • Patent number: 9580653
    Abstract: The invention relates to the compounds of the formula I and to a liquid-crystalline medium based on a mixture of polar compounds which contains at least one compound of the formula I in which R1, L1, L2 and L3 and m have the meanings indicated in claim 1 and to the use of the LC mixtures for an active-matrix display, in particular based on the VA, PSA and PS-VA effect.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: February 28, 2017
    Assignee: Merck Patent GmbH
    Inventors: Graziano Archetti, Andreas Taugerbeck, Izumi Saito
  • Patent number: 9557605
    Abstract: The present invention provides a method of producing a liquid crystal display device which enables suppression of the occurrence of an electric double layer on a horizontal photo-alignment film before a polymer is formed, and exhibits reduced deterioration of display quality such as image sticking, or reduced display unevenness. The present invention is a method of producing a liquid crystal display device including the steps of (1) forming a liquid crystal layer containing a polymerizable monomer between a first substrate and a second substrate; (2) thermally annealing the liquid crystal layer at a temperature higher by 10° C. or more than the liquid crystalline phase-isotropic phase transition temperature of the liquid crystal layer; (3) forming horizontal alignment films to which the alignment treatment is performed by light irradiation on the first substrate and the second substrate by the time of the step (2); and (4) polymerizing the polymerizable monomer after the step (2).
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: January 31, 2017
    Assignee: Merck Patent GmbH
    Inventors: Isamu Miyake, Koichi Miyachi
  • Patent number: 9507189
    Abstract: The present invention provides a display panel that exhibits increased light use efficiency and decreased occurrence of display anomalies. The display panel includes substrates; a light modulating layer that contains shape-anisotropic members that rotate according to the direction of an electric field and that controls the transmittance of incident light by changing the area projected onto the substrates by the shape-anisotropic members; and supporting members that support the shape-anisotropic members and are rotatably connected thereto.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: November 29, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Eiji Satoh, Takuma Tomotoshi, Tomoko Teranishi, Takahiro Nakahara
  • Patent number: 9470928
    Abstract: Disclosed is a homeotropic alignment liquid crystal film without an alignment layer and a method for preparing the same. More specifically, the present invention relates to a homeotropic alignment liquid crystal film without using a separate alignment layer to induce a homeotropic alignment of the liquid crystal in which a liquid crystal layer has a homeotropic alignment property by coating a polymerizable and reactive liquid crystalline mixture solution including a predetermined surfactant on a plastic substrate whose surface are hydrophilic-treated, and drying and UV irradiating the mixture solution; a method for preparing the same. The homeotropic alignment liquid crystal film prepared according to the present invention may be very useful as a major component of a viewing-angle compensation film and a retardation film, etc. in LCD, and has advantages of simplicity of the manufacturing process, its shortened manufacturing time, its mass production, etc.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: October 18, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Eun-kyung Kim, Dae-hee Lee, Moon-soo Park, Seung-hun Chae, Sin-young Kim
  • Patent number: 9465262
    Abstract: A display panel comprises a first substrate, a second substrate and a pixel array. The pixel array is disposed between the first substrate and the second substrate and comprises a pixel electrode and a data line. The data line is disposed adjacent to the pixel electrode and disposed above a side of the first substrate facing the second substrate. The pixel electrode comprises a first trunk electrode and a plurality of branch electrodes. An extension of the first trunk electrode along a first direction crosses the data line and the first trunk electrode connects to the branch electrodes. The branch electrodes extend along a second direction. An angle y is formed by the first direction and the second direction, x is the value of the ppi of the display panel, and x and y satisfy the following equations: A1=?1.28×10?5(x)3+0.0047722(x)2?0.383068(x)+59.494865, B1=?2.38×10?5(x)3+0.0093751(x)2?1.098394(x)+81.919357, B1<y<A1, 45°<y?70°.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: October 11, 2016
    Assignee: INNOLUX CORPORATION
    Inventors: Hsin-Yu Lee, Ching-Che Yang, Chen-Kuan Kao
  • Patent number: 9454041
    Abstract: A liquid crystal device includes a liquid crystal layer, and an inorganic oriented film between the liquid crystal layer and an electrode, in which the inorganic oriented film has a first inorganic oriented film that has a first prismatic structure including silicon oxide, and a second inorganic oriented film that is formed so as to cover at least a portion of the first prismatic structure, and includes nitrogen.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 27, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Yoshimichi Matsumoto, Yoshio Taniguchi, Norikazu Komatsu
  • Patent number: 9442324
    Abstract: A source line is provided on a layer above a substrate, and as a whole, extends in a first direction while meandering along the main surface of the substrate. An alignment film is provided on a layer above the source line, and specifies the alignment direction of a liquid crystal. A first protruding section along the source line is formed on the surface of the alignment film. In a cross-section that is parallel to the first direction and perpendicular to the substrate, and that passes through the source line, the inclination of an inclined end face on one side of the first protruding section in the first direction is steeper than the inclination of each inclined end face on the other side of the protruding section.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: September 13, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventor: Akinori Sumi
  • Patent number: 9411196
    Abstract: This liquid crystal display device (100) includes: a vertical alignment liquid crystal layer (3); a pixel electrode (11) and a counter electrode (21) arranged on first and second substrates (1, 2), respectively, to front on the liquid crystal layer; and first and second alignment films (12, 22). Each pixel region (10) includes first, second, third and fourth liquid crystal domains (A, B, C, D) in which liquid crystal molecules (3a) are tilted in first, second, third and fourth predetermined directions, respectively, which are defined so that an angle formed between any two of them is approximately equal to an integral multiple of 90 degrees. The first liquid crystal domain is located close to at least a part of edges of the pixel electrode, which includes a first edge portion (EG1) where an azimuthal direction (e1) perpendicular to the part and pointing toward the inside of the pixel electrode defines an angle greater than 90 degrees to the first direction.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: August 9, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Youhei Nakanishi