Having Structure Produced By Rubbing Under Particular Rubbing Conditions (e.g., Particular Direction, Rubbing Force, By Using Named Rubbing Material Or Roller, Etc.) Patents (Class 349/126)
  • Patent number: 12019345
    Abstract: One or more devices, systems, methods and/or apparatus to facilitate suppression of fringe field effect, such as for diffraction grating and/or display purposes. In one embodiment, a ferroelectric liquid crystal (FLC) element can comprise a pair of conductive substrates, a FLC layer having a helical pitch and positioned between the conductive substrates, one or more spacers fixedly positioned between the conductive substrates, and an alignment layer positioned between the FLC layer and one of the conductive substrates. The alignment layer can be disposed at least partially contiguous with the FLC layer. The FLC layer can comprise a chiral smectic C* liquid crystal layer having at least one of a helical pitch smaller than an average cell gap of the FLC layer, or an average helical pitch of the FLC layer being smaller than an average thickness of the FLC layer between the conductive substrates.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: June 25, 2024
    Assignee: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Zhibo Sun, Zhengnan Yuan, Abhishek Kumar Srivastava, Hoi-Sing Kwok
  • Patent number: 11513397
    Abstract: A manufacturing method of a liquid crystal display panel includes vertically irradiating a first substrate and a second substrate with ultraviolet light for alignment. An energy compensation device is formed and/or placed in an irradiation direction of the ultraviolet light. An angle difference of pretilt angles between liquid crystal molecules inside the first substrate and liquid crystal molecules inside the second substrate is greater than a preset angle. An energy intensity inside the first substrate or inside the second substrate is controlled by the energy compensation device, so that pretilt angle difference between the liquid crystal molecules inside the first substrate and the liquid crystal molecules inside the second substrate is large.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: November 29, 2022
    Assignee: Shenzhen China Stor Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Min Huang, Jianhong Chen
  • Patent number: 10935860
    Abstract: A display device includes a liquid crystal layer, pixel electrodes, a common electrode, and conductive lines. The pixel electrodes each have an elongated shape and include bending portions in a middle with respect to a pixel electrode lengthwise direction. The common electrode overlaps the pixel electrodes via an insulator. The conductive lines extend in a pixel electrode widthwise direction to overlap the bending portions of the pixel electrodes via an insulator. The conductive lines are electrically connected to the common electrode.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: March 2, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masahiro Yoshida
  • Patent number: 10935833
    Abstract: The present application provides a display apparatus having a display area and a black matrix area surrounding the display area. The display apparatus includes a first display substrate and a second display substrate opposite to each other and assembled together. The first display substrate includes a first base substrate, and a black matrix on the first base substrate and in the black matrix area. The second display substrate includes a second base substrate, and an array of a plurality of thin film transistors on the second base substrate for driving image display in the display apparatus. The black matrix has a serrated edge surrounding the display area.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 2, 2021
    Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiaoyuan Wang, Yan Fang, Wu Wang, Ruilin Bi, Yajie Bai
  • Patent number: 10824026
    Abstract: A substrate and a preparation method thereof, and a display panel are provided. The substrate includes a base substrate. The substrate includes a plurality of units, and a cutting region is between at least two adjacent units; the substrate further includes a first protruding portion, which is on the base substrate and in the cutting region; and a position of the first protruding portion corresponds to a position of an exposure gap measure window of a mask.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 3, 2020
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jie Xue, Qian Jiang, Xu Zhang
  • Patent number: 10712583
    Abstract: A polarization control panel capable of performing two-dimensional (2D) and three-dimensional (3D) control is discussed according to an embodiment. The polarization control panel includes a first substrate and a second substrate opposite to each other, and a first electrode and a second electrode disposed respectively on the first and second substrates. The polarization control panel further includes a lens layer disposed on the first electrode, the lens layer having a surface curved toward the second electrode, and the curved surface being rubbed in a first direction. The polarization control panel further includes an adhesive layer disposed on the second electrode and rubbed in a second direction, and an optically anisotropic layer disposed between the adhesive layer and the lens layer.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: July 14, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Sung-Woo Kim
  • Patent number: 10663812
    Abstract: A driving potential is given to the first electrodes and the third electrodes, respectively. A common potential is given to the second electrodes and the fourth electrodes, respectively. Each of the third electrodes is located at a layer closer to the liquid crystal as compared to the second electrodes, and intersects with one of the second electrodes through an insulating layer. Each of the fourth electrodes is located at a layer closer to the liquid crystal as compared to the first electrodes, and intersects with one of the first electrodes through an insulating layer. A width of the third electrodes is the same as each other at respective intersections of the the third electrodes and the the second electrodes. A width of the fourth electrodes is the same as each other at respective intersections of the the fourth electrodes and the the first electrodes.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: May 26, 2020
    Assignee: TIANMA JAPAN, LTD.
    Inventors: Takayuki Konno, Hidenori Ikeno, Mitsuhiro Sugimoto
  • Patent number: 10656469
    Abstract: A rubbing alignment device, assembly and a rubbing alignment method are disclosed. The rubbing alignment device comprises a friction member including at least two friction rollers, and a friction member controller connected to the friction member for controlling respective friction rollers of the friction member to perform rubbing alignment for the substrates of the motherboard having different sizes, respectively.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 19, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wuwei An, Jaegwan Shin, Xu Wang, Hongye Zuo, Jiangzhou Du, Nan Liu, Xufeng Liu, Yan Zhao
  • Patent number: 10634960
    Abstract: A liquid crystal display device including an upper substrate and a lower substrate; and a liquid crystal layer sandwiched between the upper and lower substrates, wherein the lower substrate includes a first electrode and a second electrode and a third electrode arranged in a layer different from the first electrode, the first electrode has multiple linear portions and an opening is provided between the linear portions, the second electrode and the third electrode are a pair of comb-shaped electrodes, each of the comb-shaped electrodes has a trunk portion and multiple branch portions branching from the trunk portion, at least one of the branch portions of the third electrode has a narrow portion which is narrowest and a projection portion which is wider than the narrow portion, one of angles on the upper side and on the opening side formed by a contour line of the opening on each of the left and right sides of the projection portion and the narrow portion of the branch portion of the third electrode in the ope
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: April 28, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Satoshi Matsumura, Mitsuhiro Murata, Takuma Tomotoshi, Yosuke Iwata
  • Patent number: 10503026
    Abstract: The present disclosure provides a liquid crystal display panel having a long side defining a first direction and a short side defining a second direction, and the long side has a length greater than that of the short side. The liquid crystal display panel includes a first substrate, a second substrate and a plurality of spacers arranged between the first substrate and the second substrate, wherein liquid crystal droplets are able to flow among the plurality of spacers, and wherein the plurality of spacers are configured and arranged such that a sum of cross sectional areas of the plurality of spacers per unit length in the first direction is greater than a sum of cross sectional areas of the plurality of spacers per unit length in the second direction. The liquid crystal display panel provided by the present disclosure may reduce the contamination at the periphery of a small size TFT-LCD device and facilitate flowing and diffusing of the liquid crystal droplets to corners of the device.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: December 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Jun Zhang
  • Patent number: 10424604
    Abstract: The present disclosure provides an array substrate, its manufacturing method, and a display apparatus containing the array substrate. The array substrate includes: a substrate; a plurality of gate lines and a plurality of data lines, disposed over the substrate and arranged in rows and columns respectively; and a plurality of pixel regions, each arranged in an area defined by crossing gate lines and data lines and comprising a pixel electrode. The plurality of data lines are configured such that in each pixel region, orthographic projection of any one of the plurality of data lines on the substrate and orthographic projection of a corresponding pixel electrode on the substrate has an overlapping area having a width of ?0 ?m.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: September 24, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Rui Wang, Haijun Qiu, Fei Shang, Jaikwang Kim, Shaoru Li, Zhuo Xu
  • Patent number: 10353250
    Abstract: A liquid crystal includes first and second substrates, the first substrate including intersecting data lines and scan lines. A liquid crystal layer is sandwiched therebetween. Also, a plurality of sub-pixels districted by data lines and gate lines, and arranged along the long-axis and the short-axis directions in a matrix. A pixel electrode in the sub-pixels includes a central portion. A common electrode including linear electrodes arranged along the data lines and disposed with gaps therebetween. Sub-pixels are bent at the center portion, such that the linear electrodes or the gaps in both sides of the sub-pixels are inclined in opposite directions with respect to the long-axis direction. At least one of the linear electrodes or at least one of the gaps has a bent portion at the central portion of the respective pixel electrode. The common electrode is provided on liquid crystal layer side over the pixel electrode.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: July 16, 2019
    Assignee: JAPAN DISPLAY INC.
    Inventors: Takao Atarashiya, Hayato Kurasawa
  • Patent number: 10261351
    Abstract: An alignment apparatus includes a base, an alignment roller and a mounting frame, the alignment roller being attached with an alignment rubbing cloth, the mounting frame having two mounting portions for mounting one of two ends of alignment roller, respectively. The alignment apparatus further includes: at least one laser emitting unit disposed on a mounting portion where one end of alignment roller is located, light rays emitted from each laser emitting unit being distant from axis of alignment roller by preset distance; at least one laser blocking unit corresponding to at least one laser emitting unit, respectively, and disposed on a mounting portion where the other end of alignment roller is located; a controller in a signal connection with each laser emitting unit and configured for controlling a part or all of the laser emitting units to be activated while alignment roller is performing rubbing alignment on a surface of the substrate.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: April 16, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Feng Li, Kai Wang
  • Patent number: 10216047
    Abstract: A motherboard, a motherboard of a display panel, a liquid crystal display panel and a display device are provided. The motherboard includes: a base substrate (101, 201), and a plurality of substrate units (102, 202) arranged in a matrix on the base substrate (101, 201); and a line layer (103, 203) insulated from the substrate units (102, 202) and arranged along a preset extending direction (AA?, BB?), which is disposed within a peripheral region of the substrate units (102, 202). Because the line layer arranged along the preset extending direction is disposed within the peripheral space region of the substrate unit, when the alignment film on the substrate unit is aligned by a rubbing process, it can play a role in carding the rubbing cloth used in the rubbing process, to achieve an even rubbing effect, avoid an uneven rubbing phenomenon, and further facilitate improving a picture quality of the display panel.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: February 26, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Tingze Dong, Dongsheng Huang, Jun Mo, Xing Qin, Xuejiao Huang
  • Patent number: 10120240
    Abstract: The present invention provides a rubbing alignment method of an alignment layer, comprising steps of: step 1, providing a substrate (10), and coating an alignment layer (4) on the substrate (10); step 2, providing a rubbing roller (5), and employing the rubbing roller (5) to implement a first rubbing alignment to the alignment layer (4) according to a first rubbing direction; step 3, employing the rubbing roller (5) to implement a second rubbing alignment to the alignment layer (4) according to a second rubbing direction, and the second rubbing direction is opposite to the first rubbing direction. The rubbing alignment method of the alignment layer can effectively eliminate the rubbing shadow to prevent the uneven rubbing alignment and the liquid crystal alignment disorientation to make the liquid crystals in an orderly arrangement. Thus, the light leakage phenomenon of the liquid crystal display panel in the dark state can be suppressed and the contrast ratio can be raised.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: November 6, 2018
    Assignee: WUHAN CHINA STAR OPTOELECTONICS TECHNOLOGY CO., LTD.
    Inventor: Chang Xie
  • Patent number: 9989816
    Abstract: A liquid crystal display device includes first and second substrates opposite to each other, a liquid crystal layer between the first and second substrates, a first electrode on the first substrate in a planar shape, and a second electrode on the first substrate and including pixel electrodes, which overlap the first electrode. Each of the pixel electrodes includes minute branches disposed parallel to one another, and connecting branches, which connect the minute branches, the minute branches include an edge area defined on a side thereof, and a main area defined by a remaining area, the connecting branches are disposed alternately on outer sides of the edge and main areas, and a first angle formed by the minute branches in the edge area with respect to a first direction is larger than a second angle formed by the minute branches in the main area with respect to the first direction.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: June 5, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Su Jung Huh, Hwa Yeul Oh, Ji Eun Lee
  • Patent number: 9958731
    Abstract: The present disclosure provides a method for rubbing an alignment layer on a substrate with a plurality of spacers that are arranged in rows and columns and a liquid crystal display panel. The method includes: determining a first rubbing direction and a second rubbing direction in such a manner that the second rubbing direction is an arrangement direction of liquid crystal molecules when the liquid crystal molecules are arranged correctly on the alignment layer, and an angle between the first rubbing direction and the second rubbing direction is greater than or equal to arctan (b/a), where a represents a row pitch between the spacers and b represents a width of one spacer; performing a first rubbing on the alignment layer in the first rubbing direction; and performing a second rubbing on the alignment layer in the second rubbing direction. The second rubbing direction is different from the first rubbing direction.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 1, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Hongpeng Li, Sunghun Song, Jingpeng Li
  • Patent number: 9851603
    Abstract: A compensation film for a liquid crystal film includes a first layer including splayed rod-shaped nematic liquid crystal material and a second layer disposed on a surface of the first layer and including at least one of a biaxial layer and an A-plate.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 26, 2017
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Hee Kyung Kim, Jang-Kun Song
  • Patent number: 9789724
    Abstract: The present invention relates generally to an optical security device and an optical security system in which hidden images that are invisible to the naked eye under unpolarized illumination, become visible under either linearly or circularly polarized illumination. Preferred fabrication methods of said optical security device are disclosed.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: October 17, 2017
    Assignee: OPTHENTIC CORP.
    Inventors: Yingqiu Jiang, Aharon Hochbaum
  • Patent number: 9577103
    Abstract: A liquid crystal display with two insulating substrates. A first insulating substrate has crossing signal lines, a pixel electrode, and a drain electrode electrically connected to the pixel electrode through a contact hole. A spacer is formed on the first signal line of the first insulating substrate, and is wider at a first portion close to the first insulating substrate than at a second portion close to the second insulating substrate, and the drain electrode comprises a first portion and a second portion extending in a different direction with respect to the first portion.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: February 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
  • Patent number: 9454024
    Abstract: The invention refers to a technical field of display device producing, and discloses a composite repairing apparatus for liquid crystal display panel. The repairing device has a repairing device, which includes a gantry slidably assembled on the lighting device, which gantry being slidably assembled with a observation camera, a metal line repairing laser and a repairing laser employing black matrix diffusion; a driving device for driving the gantry to slide and driving the observation camera, the metal line repairing laser and the repairing laser employing black matrix diffusion to slide; a control device, for determining the positions of the defects in the panel according to the displayed images collected by the observation camera, and controlling the metal line repairing laser and the repairing laser employing black matrix diffusion to repair the panel defects.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: September 27, 2016
    Assignees: Boe Technology Group Co., Ltd., Beijing Boe Display Technology Co., Ltd.
    Inventors: Pingyu Wei, Tao Li, Jihua Wang, Dong Guo, Tao Wu
  • Patent number: 9434036
    Abstract: The present invention discloses a replacing mechanism for rubbing rollers in rubbing equipment, comprising a stage, an exchange placement platform, an exchange unit, and a connecting device for connecting the exchange placement platform and a rubbing platform in the rubbing equipment, and the stage is provided with placement grooves arranged in parallel, the number of which is larger than that of the rubbing rollers in the rubbing equipment, and in a rubbing roller replacing position, a first pressing device and/or a second pressing device of the rubbing equipment takes down worn rubbing rollers from the rubbing equipment and puts the worn rubbing rollers into vacant placement grooves in the stage, or takes out new rubbing rollers from the placement grooves and installing the new rubbing rollers on the rubbing equipment.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: September 6, 2016
    Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Yazhou Zhao, Juan Wang, Xin Hu
  • Patent number: 9341895
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a plurality of first electrodes on the first substrate, a first vertical alignment layer on the first electrodes, a second electrode on the second substrate, a second vertical alignment layer on the second electrode, and a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer includes liquid crystal molecules having negative dielectric anisotropy, a chiral dopant, and an alignment aiding agent.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Gi Seong, Hee Hwan Lee, Min-Jae Kim, Min-Hee Kim, Keun Chan Oh
  • Patent number: 9217818
    Abstract: A polarizer is provided comprising: a transparent substrate, on a main surface of which a plurality of grooves in parallel with each other are provided at an interval; a birefringence crystal layer with a single orientation formed on the main surface of the transparent substrate where the grooves are provided, wherein the birefringence crystal layer is at least filled in the grooves so that linearly polarized light incident on a location corresponding to the grooves and passing through the polarizer is converted into first polarized light, and linearly polarized light incident on a location between the grooves and passing through the polarizer is converted into second polarized light, the polarization directions of the first and the second polarized light are different from each other.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 22, 2015
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yun Bok Lee, Ku Hyun Park
  • Patent number: 9207508
    Abstract: Embodiments of the present invention provide a TFT array substrate and a manufacturing method thereof, and a display apparatus. The TFT array substrate comprises upper and lower layer electrodes insulating from each other, wherein the upper layer electrode has slits, the slits comprising at least one pair of angles of less than or equal to 90°; the lower layer electrode is a whole-plane electrode. The lower layer electrode has absent regions, and each of the absent regions corresponds to the corresponding angle of less than or equal to 90° of the slits of the upper layer electrode.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: December 8, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Teruaki Suzuki
  • Patent number: 9151992
    Abstract: A color filter substrate includes a substrate in which a plurality of pixel areas are defined; a black matrix formed on the substrate, and having a plurality of openings in correspondence to the pixel areas; a color filter layer formed on the substrate, and including a red color filter, a green color filter, and a blue color filter that are sequentially arranged in a first direction in correspondence to the pixel areas; and a plurality of first column spacers and a plurality of second column spacers formed over the black matrix, and having different heights, wherein a height of each of the first column spacers is higher than a height of each of the second column spacers, and an arrangement density of the first column spacers is lower than an arrangement density of the second column spacers.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: October 6, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Kyung Lee, Jae-Kyun Lee, Seung-Ryull Park, Kyung-Mo Son, Ji-Hye Lee, Jeong-Gi Yun
  • Patent number: 9134577
    Abstract: A liquid crystal display device includes a first substrate including a T-shaped pixel electrode including a strip-shaped first main electrode positioned midway between a first source line and a second source line, and a strip-shaped sub-electrode, a second substrate including a counter-electrode which includes a strip-shaped second main electrode positioned above the first source line and the second source line, and a liquid crystal layer, wherein when an inter-electrode distance between the first main electrode and the second main electrode is L and a cell gap is GP, a formed angle ?, which is expressed by a relationship of tan ?=GP/L, is greater than a pre-tilt angle ? of a liquid crystal molecule.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: September 15, 2015
    Assignee: Japan Display Inc.
    Inventors: Nobuko Fukuoka, Arihiro Takeda, Jin Hirosawa
  • Patent number: 9061463
    Abstract: A method of making an embossed micro-structure includes providing a transfer substrate, an emboss substrate, and an embossing stamp having one or more stamp structures. Transfer material is coated on the transfer substrate. The transfer material on the transfer substrate is contacted with the stamp structures to adhere transfer material to the stamp structures. A curable emboss layer is coated on the emboss substrate. The stamp structures and adhered transfer material are contacted to the curable emboss layer on the emboss substrate to emboss a micro-structure in the curable emboss layer and transfer the transfer material to the embossed micro-structure. The curable emboss layer is cured to form a cured emboss layer having embossed micro-structures corresponding to the stamp structures and having transfer material in the embossed micro-structures. The stamp structures is removed from the cured emboss layer, substantially leaving the transfer material in the micro-structure.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 23, 2015
    Assignee: EASTMAN KODAK COMPANY
    Inventors: Ronald Steven Cok, Shelby Forrester Nelson
  • Publication number: 20150138460
    Abstract: A liquid crystal device including: a first substrate, the first substrate being transparent; a second substrate disposed opposite the first substrate, the second substrate being transparent; a liquid crystal layer provided between the first substrate and the second substrate, the liquid crystal layer including liquid crystal molecules; an alignment film with alignment treatment such that the liquid crystal molecules align, the alignment film being provided on a surface of the first substrate, the surface facing the liquid crystal layer; and pillar spacers provided on the alignment film, wherein the alignment treatment is applied to the alignment film except at least a part of area in which each of the pillar spacers overlaps with the alignment film.
    Type: Application
    Filed: November 14, 2014
    Publication date: May 21, 2015
    Inventors: Hiroki SUGIYAMA, Takeo KOITO
  • Patent number: 9036100
    Abstract: A liquid crystal (LC) lens includes a first substrate, a second substrate, and a plurality of liquid crystal units disposed between the first substrate and the second substrate. Each liquid crystal unit includes a first sub-unit having a first electrode and a second electrode disposed on the first substrate with a first interval therebetween and a third electrode and a fourth electrode disposed on the second substrate with a second interval therebetween. A first voltage difference is applied between the first electrode and the third electrode, and a second voltage difference is applied between the second electrode and the fourth electrode. The polarity of the first voltage difference is contrary to that of the second voltage difference, and the first interval is not equal to the second interval. A 3D display including the LC lens and a display panel is also provided.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: May 19, 2015
    Assignee: AU OPTRONICS CORP.
    Inventors: Po-Sen Yang, Yung-Sheng Tsai, Jen-Lang Tung
  • Patent number: 9007551
    Abstract: A high resolution, wide viewing angle, low power consumption liquid crystal display device which utilizes nematic liquid crystal and which can attain both the memory effect and wide-viewing-angle display characteristic. A liquid crystal display device that utilizes nematic liquid crystal and includes a pair of transparent substrates; a group of electrodes for applying to a liquid crystal layer disposed between the pair of substrates an electric field having a component substantially parallel to the surfaces of the substrates; and an alignment layer disposed between the liquid crystal layer and at least one of the pair of substrates and having been subjected to liquid crystal anchoring treatments in plural directions. The plurality of liquid crystal anchoring directions of the alignment layer form substantially equal angles relative to one another, and a rising angle in each of the liquid crystal anchoring directions with respect to the corresponding substrate surface is substantially zero.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: April 14, 2015
    Assignee: Japan Science and Technology Agency
    Inventors: Makoto Yoneya, Jong-Hyun Kim, Hiroshi Yokoyama, Jun Yamamoto
  • Patent number: 8970815
    Abstract: Systems and methods are described for producing liquid crystal devices microwave that use metal alignment layers. The liquid crystal microwave devices include a liquid crystal layer sandwiched between metal layers, which are further sandwiched between substrate layers. At least one of the metal layers is rubbed to form micro-grooves that tend to align the liquid crystal molecules adjacent to those layers without using additional rubbed polymeric layers for the alignment. The thickness of the metal layers can be selected to yield a desired electromagnetic effect, such as constraint of propagation of microwave radiation.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 3, 2015
    Assignee: The Regents of the University of Colorado
    Inventors: Zbigniew Celinski, Robert Camley, Yuri Garbovskiy, Anatoliy Glushchenko
  • Publication number: 20150009434
    Abstract: A liquid crystal (LC) lens includes a first substrate, a second substrate, and a plurality of liquid crystal units disposed between the first substrate and the second substrate. Each liquid crystal unit includes a first sub-unit having a first electrode and a second electrode disposed on the first substrate with a first interval therebetween and a third electrode and a fourth electrode disposed on the second substrate with a second interval therebetween. A first voltage difference is applied between the first electrode and the third electrode, and a second voltage difference is applied between the second electrode and the fourth electrode. The polarity of the first voltage difference is contrary to that of the second voltage difference, and the first interval is not equal to the second interval. A 3D display including the LC lens and a display panel is also provided.
    Type: Application
    Filed: November 27, 2013
    Publication date: January 8, 2015
    Applicant: AU Optronics Corp.
    Inventors: Po-Sen YANG, Yung-Sheng TSAI, Jen-Lang TUNG
  • Patent number: 8908135
    Abstract: A manufacturing method includes providing a structural element that provides a predetermined gap between a first substrate and a second substrate to at least one of the first and second substrates, forming an alignment film on each of the first and second substrates, and subjecting the alignment film formed on each of the first and second substrates to a rubbing process. The structural element is formed after the alignment film is formed and before or after the rubbing process is performed.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: December 9, 2014
    Assignee: Japan Display West Inc.
    Inventors: Takeo Koito, Daisuke Takama
  • Patent number: 8879032
    Abstract: An alignment layer for a display device may include a plurality of rubbed patterns formed on its surface, wherein each of the rubbed patterns includes a first pattern intersecting a center axis at a first angle, and a second pattern connected to the first pattern and intersecting the center axis at a second angle, and the first pattern and the second pattern are alternately repeated. A liquid crystal display device includes the alignment layer, and a method and apparatus for treating the alignment layer are provided.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Valeriy Prushinskiy, Len Kaplan, Won-Sik Hyun, Heung-Yeol Na, Min-Soo Kim, Seon-Hong Ahn
  • Publication number: 20140320792
    Abstract: A liquid crystal display panel is provided and includes a pair of substrates arranged face to face so as to sandwich a liquid crystal layer, a lower electrode formed on a lower substrate, an upper electrode formed on the lower substrate through an insulating layer, in which plural slits are formed in each sub-pixel, wherein each of the plural slits is formed as an aperture in which both ends thereof in the longitudinal direction are closed, and an alignment film formed so as to cover a surface of the upper electrode and the insulating layer. The plural slits have different widths at both ends of slits in a longitudinal direction, and a rubbing direction of the alignment film is a direction crossing longitudinal edges of each of the slits.
    Type: Application
    Filed: July 10, 2014
    Publication date: October 30, 2014
    Inventors: Aya Yoso, Joji Nishimura, Hayato Kurasawa
  • Publication number: 20140313465
    Abstract: A display panel and a method for manufacturing a liquid crystal display are provided. The display panel includes a substrate, a first display cell arranged on the substrate, a second display cell arranged on the substrate and located to be spaced apart from the first display cell in a first direction, and a separation region defined between the first display cell and the second display cell and including a flat portion and a projection portion projecting from the flat portion, where the first display cell includes a pad portion, which is formed on one side adjacent to the second display cell and which includes a convex portion having a surface that projects and a concave portion that is recessed.
    Type: Application
    Filed: August 27, 2013
    Publication date: October 23, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventor: Jae-Kyung Go
  • Patent number: 8860913
    Abstract: The present invention provides a liquid crystal display device producing less image sticking. The liquid crystal display device of the present invention comprises: a pair of substrates; and a liquid crystal layer between the substrates, wherein at least one of the substrates comprises an alignment film and a photopolymer film on the alignment film, the photopolymer film comprises polymers constituted by a photopolymerizable monomer, the photopolymerizable monomer includes two or more polymerizable functional groups, the polymerizable functional groups are bonded to each other through two or more aromatic rings, the aromatic rings include at least one naphthalene ring, and a bond between the naphthalene ring and another aromatic ring has a rotational degree of freedom.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: October 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohei Nakanishi, Yuichiro Yamada, Masanobu Mizusaki
  • Patent number: 8836900
    Abstract: Disclosed are an array substrate and a liquid crystal display device. The array substrate comprises a base substrate, and data lines and gate lines, which are orthogonal to each other to define a plurality of pixel units, formed in a pixel region of the base substrate, with each of the pixel units comprising a switching element, a pixel electrode and a common electrode that is overlapped with the pixel electrode. The common electrode in each of the pixel units comprises slits, and the slits have a shape of curved line and are parallel to each other so as to form a slit region in the common electrode; and the pattern profile of the pixel electrode is parallel to the profile of the slit region of the common electrode.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: September 16, 2014
    Assignees: Boe Technology Group Co., Ltd., Chengdu Boe Optoelectronics Technology Co., Ltd.
    Inventors: Ruizhi Yang, Jun Hwan Lim, Weiyun Huang
  • Patent number: 8810758
    Abstract: A liquid crystal alignment layer both offers a surface to which the liquid crystal molecules align, and maintains conductive properties required for the liquid crystal molecules to be manipulated by an applied electrical field. Advantages of the alignment layer offer reduced device degradation and improved stability under conventional or high intensity radiation, and also simplify the liquid crystal display or device construction.
    Type: Grant
    Filed: March 24, 2010
    Date of Patent: August 19, 2014
    Inventor: Jay Ahling
  • Publication number: 20140218672
    Abstract: The invention relates to a method of producing a phase device operating at at least one wavelength (?) comprising a cell containing a liquid crystal possessing a helical structure, inserted between two alignment layers possessing rubbing axes and means for applying a voltage to said cell, said helical structure exhibits a number of helical turns k, said liquid crystal exhibiting a defined angle of twist ? between the rubbing axes of the two alignment layers, characterized in that it comprises the following steps: —the determination of a compensation angle ? satisfying the following equation: (formula) with: N the integer closest to (formula) the angle of twist ?=2K??? ?n: the birefringence of the liquid crystal; d: the thickness of the liquid crystal cell; ?: the wavelength of the light beam which passes through the liquid crystal cell; the rubbing of one of the faces in a direction of alignment of said liquid crystal molecules, defining the angle of twist: ?=2K???.
    Type: Application
    Filed: July 19, 2012
    Publication date: August 7, 2014
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Umberto Rossini, Laurence Clerc
  • Patent number: 8780318
    Abstract: A patterned phase retardation film is disclosed, which includes substrate, a phase retardation layer on the substrate comprising a plurality of first regions of liquid crystal materials and a plurality of second regions of curable resin, wherein the first regions and the second regions are in a grating stripe structure which is parallel and interleaved with each other the top part of the second regions is formed with at least one inclined plane; and a planarization layer for planarizing the phase retardation layer; wherein the first regions provide a first phase retardation and second regions provide a second phase retardation, the first phase retardation and the second phase retardation have a phase difference of 180°. The method for manufacturing the patterned phase retardation film is also disclosed.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: July 15, 2014
    Assignee: BenQ Materials Corporation
    Inventors: Lung-Hai Wu, Chen-Kuan Kuo, Fung-Hsu Wu, Cyun-Tai Hong, Chih-Haw Wang
  • Patent number: 8767156
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: July 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8767153
    Abstract: The invention relates to a process of preparing an alignment film for the alignment of liquid crystals (LCs) or reactive mesogens (RMs), by a direct particle beam deposition process, to an alignment film obtainable by said process, to the use of said alignment film for the alignment of LCs or RMs, especially in the form of thin layers, to a multilayer comprising said alignment film and one or more LC and/or RM layers, and to the use of the alignment film and multilayer in optical, electronic and electrooptical applications.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: July 1, 2014
    Assignee: Merck Patent GmbH
    Inventors: Oleg Yaroshchuk, Eugene Telesh, Aleksander Khokhlov
  • Patent number: 8730439
    Abstract: To provide a production method of a liquid crystal display device and a liquid crystal display device, in which generation of a joint line on a display screen is suppressed and yield can be improved even if a substrate is subjected to an alignment treatment by completing exposure for the substrate through several exposures in a liquid crystal display device including pixels each having two or more domains.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: May 20, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Iichiro Inoue, Hiroyuki Hakoi, Shinichi Terashita, Koichi Miyachi
  • Patent number: 8717522
    Abstract: An apparatus for forming an alignment film and a method for fabricating a liquid crystal display panel using the same are disclosed. A steam inspecting unit for inspecting a defective alignment film is disposed for two lines of rubbing equipment, so that a facility investment expense can be reduced and a space of a clean room can be effectively utilized. The apparatus for forming an alignment film comprises a rubbing equipment comprising at least one rubbing unit; and an alignment film inspecting unit installed between the two lines of rubbing equipment and inspecting an alignment film formed on a substrate.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: May 6, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Byoung Chul Choi
  • Patent number: 8681304
    Abstract: Disclosed is a liquid crystal display device comprising a lower substrate, an upper substrate, and a liquid crystal layer interposed between the substrates and aligned in a predetermined rubbing direction, in which pixel regions are respectively defined by gate lines and data lines formed to intersect each other on the lower substrate, and a switching device is arranged in an intersecting portion of the gate line and the data line, the liquid crystal display device comprising: a lateral pattern portion formed on at least one side of the data line and formed zigzagging along an extending direction of the data line. With this, it is possible to effectively improve and prevent the rubbing defect that occurs in the stepped region of the data line during the rubbing process for alignment of liquid crystal.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: March 25, 2014
    Assignee: Hydis Technologies Co., Ltd.
    Inventors: Hae Jin Park, Won Chul Sin
  • Publication number: 20140071390
    Abstract: A liquid crystal display device includes a liquid crystal display element including a first alignment film and a second alignment film and a liquid crystal layer that is provided between the first alignment film and the second alignment film, wherein the first alignment film includes a compound in which a polymer compound that includes a cross-linked functional group or a polymerized functional group as a side chain is cross-linked or polymerized, the second alignment film includes the same compound as the compound that configures the first alignment film, and the formation and processing of the second alignment film is different from the formation and processing of the first alignment film and when a pretilt angle of the liquid crystal molecules which is conferred by the first alignment film is ?1 and a pretilt angle of the liquid crystal molecules which is conferred by the second alignment film is ?2, ?1>?2.
    Type: Application
    Filed: November 15, 2013
    Publication date: March 13, 2014
    Applicant: Sony Corporation
    Inventors: Masahiko Nakamura, Shunichi Suwa, Masashi Miyakawa, Tadaaki Isozaki
  • Patent number: 8654289
    Abstract: An LCD device includes first and second substrates, an alignment layer formed over at least one of the substrates, and a liquid crystal layer formed between the substrates. The alignment layer is formed of a mixture of rubbing alignment and UV alignment materials. A method of fabricating the LCD device includes preparing first and second substrates; coating an alignment layer over at least one of the substrates; performing a rubbing process on the substrate coated with the alignment layer; and irradiating polarized UV rays onto the substrate coated with the alignment layer, wherein the alignment layer is formed of a mixture of rubbing alignment a UV alignment materials. The rubbing process obtains high anchoring energy is obtained, thereby preventing afterimages. Also, the process of irradiating the polarized UV rays eliminates the problem of light leakage.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: February 18, 2014
    Assignee: LG Display Co., Ltd.
    Inventor: Su-Hyun Park
  • Patent number: 8654288
    Abstract: A method for fabricating a liquid crystal display device includes providing an LCD panel that includes a photopolymerizable compound in its liquid crystal layer; and forming alignment sustaining layers by polymerizing the photopolymerizable compound in the liquid crystal layer of the LCD panel with the liquid crystal layer irradiated with light and supplied with a voltage simultaneously. The forming the alignment sustaining layers includes the steps of: i) applying a predetermined voltage between a pixel electrode and a counter electrode while a switching element is in ON state; and ii) changing the voltage at a storage capacitor counter electrode into a voltage, of which the polarity is opposite to a voltage at the storage capacitor counter electrode in the step i), after the switching element in ON state has been turned OFF.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hisashi Nagata, Junichi Yamada