Alignment Layer Patents (Class 349/123)
  • Patent number: 11860470
    Abstract: A flexible optical element adopting liquid crystals (LCs) as the materials for realizing electrically tunable optics is foldable. A method for manufacturing the flexible element includes patterned photo-polymerization. The LC optics can include a pair of LC layers with orthogonally aligned LC directors for polarizer-free properties, flexible polymeric alignment layers, flexible substrates, and a module for controlling the electric field. The lens power of the LC optics can be changed by controlling the distribution of electric field across the optical zone.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: January 2, 2024
    Assignee: COOPERVISION INTERNATIONAL LIMITED
    Inventors: Yi-Hsin Lin, Ming-Syuan Chen, Yu-Jen Wang
  • Patent number: 11852939
    Abstract: A display device includes a first substrate, a second substrate, a first electrically conductive portion and a second electrically conductive portion disposed between the first substrate and the second substrates. The first substrate includes a first line, a second line, a first connection electrode projecting from the first line toward the second line, and a second connection electrode projecting from the second line toward the first line. The second substrate includes a first electrode, a third connection electrode electrically connected to the first electrode and disposed to overlap the first connection electrode, a second electrode, and a fourth connection electrode electrically connected to the second electrode and disposed to overlap the second connection electrode. The first electrically conductive portion overlaps and contacts the first connection electrode and the third connection electrode.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: December 26, 2023
    Assignee: Sharp Display Technology Corporation
    Inventor: Ryo Yonebayashi
  • Patent number: 11823641
    Abstract: The display device of the present disclosure comprises: a display panel; a backlight for providing light to the display panel; a liquid crystal panel which is arranged between the display panel and the backlight and which includes a first transparent electrode sheet, a second transparent electrode sheet, and a liquid crystal layer formed between the first and second transparent electrode sheets and arranged according to the difference in voltages applied to the first and second transparent electrode sheets; and a control unit for applying a driving voltage to a block, which corresponds to a region of the display panel, from among a plurality of blocks of the first transparent electrode sheet in order to apply a voltage to a specific point inside the block, wherein the voltage applied to the specific point is determined on the basis of the distance between a point of the first transparent electrode sheet.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 21, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sunrock Lee, Yongmin Jung, Hyeongsik Choi
  • Patent number: 11815706
    Abstract: Provided are a method of manufacturing an optical element in which an optically-anisotropic layer having a small amount of in-plane unevenness can be prepared, and an optical element.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: November 14, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Sato, Yukito Saitoh
  • Patent number: 11809047
    Abstract: The present invention is to enable avoidance of a reduction in external appearance quality, and stable driving, and prevent diffracted light from being discerned by avoiding a reduction in transmittance and a deterioration in liquid crystal alignment. A light control film is provided with: a first laminate in which an alignment layer is provided; a second laminate in which an alignment layer is provided; a liquid crystal layer which is sandwiched between the first and second laminates and contains liquid crystal molecules; a spacer disposed in the liquid crystal layer to hold the thickness of the liquid crystal layer; and electrodes provided in the first laminate and/or the second laminate, and controls transmitted light by controlling the alignment of the liquid crystal molecules driven by the electrodes. The proportion of an area occupied by the spacer per unit area in a light controllable-region of the liquid crystal layer is 0.1-10%.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 7, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Nushi, Yusuke Hagiwara
  • Patent number: 11807794
    Abstract: A liquid crystal alignment agent and a preparation method thereof, a liquid crystal alignment film and a preparation method thereof, and a liquid crystal cell are provided. A piperazine monomer is added to a liquid crystal alignment agent, a bulk resistance value and a surface resistance value of a liquid crystal alignment agent material can be reduced, and the ability of the liquid crystal alignment agent material to release residual charges can be effectively improved, thereby increasing the reliability and stability of an electronic product. The liquid crystal cell using the liquid crystal alignment agent has advantages such as high voltage holding ratio (VHR) and low residual voltage.
    Type: Grant
    Filed: October 22, 2021
    Date of Patent: November 7, 2023
    Assignee: SHENZHEN DALTON ELECTRONIC MATERIAL CO., LTD
    Inventors: Shenglin Wang, Houming Li, Jianghua Su
  • Patent number: 11774794
    Abstract: A liquid crystal display panel is provided, which includes a color filter substrate, an array substrate disposed opposite to the color filter substrate, and a liquid crystal layer disposed between the color filter substrate and the array substrate. The array substrate includes: a substrate; an array driving layer disposed on the substrate; an insulating layer disposed on the array driving layer; a pixel electrode disposed on the insulating layer and electrically connected to a thin film transistor in the array driving layer by a via hole on the insulating layer; and a distributed Bragg reflective film disposed on the pixel electrode.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 3, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Yihe Zhang, Zhijun Huang
  • Patent number: 11754891
    Abstract: According to one embodiment, a display device includes, a first inorganic insulating layer, a first metal layer, a wiring group, a first organic insulating layer formed above the first inorganic insulating layer, the first metal layer and the wiring group, a second inorganic insulating layer formed above the first organic insulating layer and includes an opening portion overlapping the first metal layer, and a first transparent conductive layer formed above the second inorganic insulating layer, overlapping the opening portion and electrically connected to the first metal layer. The first organic insulating layer includes a groove portion which exposes the first inorganic insulating layer between the opening portion and the wiring group.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: September 12, 2023
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Masaru Nakakomi
  • Patent number: 11754885
    Abstract: The present invention is to enable avoidance of a reduction in external appearance quality, and stable driving, and prevent diffracted light from being discerned by avoiding a reduction in transmittance and a deterioration in liquid crystal alignment. A light control film is provided with: a first laminate in which an alignment layer is provided; a second laminate in which an alignment layer is provided; a liquid crystal layer which is sandwiched between the first and second laminates and contains liquid crystal molecules; a spacer disposed in the liquid crystal layer to hold the thickness of the liquid crystal layer; and electrodes provided in the first laminate and/or the second laminate, and controls transmitted light by controlling the alignment of the liquid crystal molecules driven by the electrodes. The proportion of an area occupied by the spacer per unit area in a light controllable-region of the liquid crystal layer is 0.1-10%.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 12, 2023
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Keisuke Miura, Yusuke Nushi, Yusuke Hagiwara
  • Patent number: 11747682
    Abstract: The present application provides a pixel electrode, a display panel, and a display device. The pixel electrode includes a stripe main electrode, a first metal trace, and branch electrodes; the stripe main electrode includes a first main electrode and a second main electrode; the first metal trace is disposed between two main traces parallel to a first direction, and is coupled to the first main electrode and the second main electrode to form four display regions.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: September 5, 2023
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Yinfeng Zhang
  • Patent number: 11681191
    Abstract: A display device includes a first pixel electrode having a first strip electrode and a second strip electrode, a second pixel electrode having a third strip electrode and a fourth strip electrode disposed in the second main pixel, and a light-shielding layer overlapping the first strip electrode. The light-shielding layer has a first opening exposing the second strip electrode, and a second opening exposing the third strip electrode and the fourth strip electrode. A size of the first opening is less than a size of the second opening. A width of the second strip electrode is less than a width of the first strip electrode.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: June 20, 2023
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11630336
    Abstract: A privacy display comprises a polarised output spatial light modulator, reflective polariser, plural polar control retarders and a polariser. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without loss, whereas off-axis light has reduced luminance. Further, display reflectivity is reduced for on-axis reflections of ambient light, while reflectivity is increased for off-axis light. The visibility of the display to off-axis snoopers is reduced by means of luminance reduction and increased frontal reflectivity to ambient light. In a public mode of operation, the liquid crystal retardance is adjusted so that off-axis luminance and reflectivity are unmodified.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 18, 2023
    Assignee: RealD Spark, LLC
    Inventors: Michael G. Robinson, Graham J. Woodgate, Jonathan Harrold, Robert A. Ramsey
  • Patent number: 11609466
    Abstract: Disclosed in the disclosure are a display panel and a display device. The display panel includes: a first base substrate; a plurality of scan signal lines arranged on a side of the first base substrate; a plurality of data signal lines arranged on sides, facing away from the first base substrate, of the scan signal lines; and first shielding parts arranged on sides, facing away from the scan signal lines, of the data signal lines, wherein each first shielding part is of a strip structure, and in each sub-pixel unit, both sides of the data signal line are each provided with one first shielding part.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: March 21, 2023
    Assignees: Wuhan BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ning Zhu, Peng Jiang, Yanping Liao, Yujie Gao, Jun Liu
  • Patent number: 11604388
    Abstract: According to one embodiment, a display device includes a first substrate including a pixel electrode, a second substrate including a common electrode, a liquid crystal layer located between the first substrate and the second substrate and containing polymer and liquid crystal molecules, and a light emitting element opposed to an end surface of the second substrate, the common electrode being separated from the pixel electrode by a first distance, at a first position, the common electrode being separated from the pixel electrode by a second distance, at a second position more separated from the light emitting element than the first position, the second distance being smaller than the first distance.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: March 14, 2023
    Assignee: Japan Display Inc.
    Inventors: Tenfu Nakamura, Kojiro Ikeda, Kentaro Okuyama
  • Patent number: 11598770
    Abstract: A novel detection system and method is presented, where a two-bead receptor method is used for capturing pathogens, with one type of bead being magnetic and having a size of 3 microns or smaller, and the other type being polymeric and having a size of 3 microns or larger. The first type is used to concentrate a pathogen; the latter is used to create a detectable signal. Fast sensitive detection is achieved by collecting the optical signal created by the distortion of a homeotropically aligned chromonic azo dye in the presence of captured pathogens.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: March 7, 2023
    Assignee: Pathogen Systems, Inc.
    Inventor: Luana Tortora
  • Patent number: 11586087
    Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 21, 2023
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11567369
    Abstract: A liquid crystal panel is provided and includes first and second substrates with liquid crystal layer therebetween; and first electrode in display region; second electrode disposed between first electrode and first substrate; and alignment film having alignment direction, wherein first electrode has: pair of electrode branches; slit between pair of electrode branches; first and second connections connecting pair of electrode branches; wherein first electrode has areas including first and second bent portions, main portion disposed between first and second bent portions, wherein first bent portion is adjacent to contact hole of first electrode, wherein first and second bent portions are bent relative to main portion, and wherein direction of first bent portion is substantially parallel to direction of second bent portion.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: January 31, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshihiro Sakurai, Hironao Tanaka, Harumi Okuno, Takeo Koito
  • Patent number: 11550192
    Abstract: A liquid crystal device including a single or a plurality of pixel elements is provided. Each pixel element includes: a first substrate, a second substrate parallel to the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first plurality of electrodes formed between the first substrate and the liquid crystal layer, a second plurality of electrodes formed between the second substrate and the liquid crystal layer. The first plurality of electrodes and the second plurality of electrodes are composed to generate electric fields in three orthogonal directions, and the electric fields in two of the three orthogonal directions are in-plane electric fields, while the other electric field of the three orthogonal directions is an out-of-plane electric field.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: January 10, 2023
    Assignee: National Tsing Hua University
    Inventors: Masahito Ohe, Deng-Yun Zheng
  • Patent number: 11543720
    Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: January 3, 2023
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11531237
    Abstract: A pixel electrode structure and a liquid crystal display panel are provided. The pixel electrode structure includes a trunk electrode, a control electrode, and a connection electrode. The trunk electrode divides the pixel electrode structure into a first pixel electrode region and a second pixel electrode region. The control electrode is close to the first pixel electrode region and away from the second pixel electrode region, and is connected to a second branch electrode of the second pixel electrode region through the connection electrode. Increasing a transmission distance from the control electrode to the pixel electrode in a display region prevents an occurrence of dark streaks.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: December 20, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Zixiang Zhang
  • Patent number: 11513408
    Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: November 29, 2022
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11487179
    Abstract: The present application relates to an optical device. The present application provides an optical device capable of varying transmittance, and such an optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: November 1, 2022
    Inventors: Ji Hoon Park, Hye Min Yu, Moon Soo Park, Young Shin Lee
  • Patent number: 11474387
    Abstract: A display apparatus (DSP1) includes: a flexible substrate (10) configured to include a region (DA1) and a region (DA2) on its surface; a liquid crystal film (LQ); and a photolytic alignment film configured to be in contact with the liquid crystal film (LQ). A material of the alignment film (AL1) in the region (DA1) is different from a material of the alignment film (AL2) in the region (DA2).
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: October 18, 2022
    Assignee: Japan Display Inc.
    Inventors: Koichi Igeta, Hidehiro Sonoda
  • Patent number: 11467457
    Abstract: According to one embodiment, a display device includes a first pixel electrode having a first strip electrode and a second strip electrode, a second pixel electrode having a third strip electrode and a fourth strip electrode disposed in the second main pixel, and a light-shielding layer overlapping the first strip electrode. The light-shielding layer has a first opening exposing the second strip electrode, and a second opening exposing the third strip electrode and the fourth strip electrode. A size of the first opening is less than a size of the second opening. A width of the second strip electrode is less than a width of the first strip electrode.
    Type: Grant
    Filed: April 15, 2021
    Date of Patent: October 11, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventor: Koichiro Adachi
  • Patent number: 11460733
    Abstract: According to one embodiment, a display device comprises a first A spacer, a second A spacer, a third A spacer and a fourth A spacer. The first A spacer and the third A spacer are on a first substrate. The second A spacer and the fourth A spacer are on a second substrate. At least one of the first and second substrates is a flexible substrate. The first A spacer and the second A spacer are aligned in a first direction. The third A spacer and the fourth A spacer are aligned in a second direction. Side surfaces of the first A spacer and the second A spacer face in the first direction. Side surfaces of the third A spacer and the fourth A spacer face in the second direction.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 4, 2022
    Assignee: Japan Display Inc.
    Inventor: Mitsutaka Okita
  • Patent number: 11442315
    Abstract: To provide a vertical alignment liquid crystal display device capable of achieving a high-definition image display. Tilt directions of liquid crystal molecules when a voltage is applied are within a plane that is in parallel to a border between a first pixel and a second pixel, and are different by 180 degrees between the first and second pixels. The first pixel is constituted with three sub-pixels for R, G, and B arranged in a direction in parallel to the border. Similarly, the second pixel is constituted with three sub-pixels for R, G, and B. The tilt directions of the liquid crystal molecules when a voltage is applied are different by 180 degrees from each other between the sub-pixels for R of the first and second pixels, between the sub-pixels for G of the first and second pixels, and between the sub-pixels for B of the first and second pixels.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: September 13, 2022
    Assignee: TIANMA MICROELECTRONICS CO., LTD.
    Inventor: Kenichi Takatori
  • Patent number: 11436974
    Abstract: A display device includes: a pixel, the pixel having a pixel circuit area and an adjacent area extending around at least a portion of the pixel circuit area; first lines at least partially in the adjacent area and extending in a first direction; second lines at least partially in the adjacent area and extending in a second direction perpendicular to the first direction; and alignment electrode layers extending in the second direction and on the first and second lines. A first number of the alignment electrode layers are in the pixel circuit area, and a second number of the alignment electrode layers are in the adjacent area. The first number is greater than the second number.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Na Hyeon Cha, Sun Kwun Son
  • Patent number: 11422400
    Abstract: This application discloses a display panel and a display device. The display panel includes: a first substrate, provided with a plurality of recessed portions; a second substrate, including a first metal layer; a plurality of photo spacers; a peripheral area; and a second metal layer. The depth of the recessed portion is smaller than a doubled thickness of the second metal layer.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: August 23, 2022
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhongnian Liu
  • Patent number: 11391992
    Abstract: A liquid crystal display includes: a first substrate; a second substrate overlapping the first substrate and spaced apart therefrom; a liquid crystal layer between the first substrate and the second substrate and including liquid crystal molecules; a first alignment layer between the first substrate and the liquid crystal layer; and a plurality of protrusions between the first alignment layer and the liquid crystal layer, wherein the first alignment layer includes a photoinitiator, wherein the plurality of protrusions include a polymerization product of the photoinitiator, a reactive mesogen, and a vertical alignment additive, and the vertical alignment additive may be less reactive than the photoinitiator.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 19, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh Jeong Kwon, Ka Eun Kim, Tae Min Kim, Duck Jong Suh, Bong-Sung Seo, Seul Gee Lee
  • Patent number: 11361720
    Abstract: A grayscale voltage output unit outputs, for a signal line including a disconnection location, a first grayscale voltage to a first signal line portion, the first grayscale voltage being corrected to be lower than the grayscale voltage to be output to the signal line on the basis of the location of the disconnection location and the wiring resistance of the signal line, and the grayscale voltage output unit outputs a second grayscale voltage to a second signal line portion, the second grayscale voltage being corrected from the grayscale voltage to be output to the signal line on the basis of the location of the disconnection location, the wiring resistance of the signal line, and the wiring resistance of spare wiring. Thereby, a display device with a simple configuration capable of reducing luminance deviation along a signal line with a disconnection location is provided.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: June 14, 2022
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Shiro Miyawaki
  • Patent number: 11353762
    Abstract: A display device comprises a first pixel including a first transistor including a first control electrode, a first input electrode, and a first output electrode spaced apart from the first input electrode and a first pixel electrode connected to the first output electrode, a second pixel adjacent to the first pixel in a first direction and including a second transistor including a second control electrode, a second input electrode, and a second output electrode spaced apart from the second input electrode and a second pixel electrode connected to the second output electrode, and a scan line for providing a scan signal to the first and second control electrodes. The first and second input electrodes are disposed in a second direction intersecting the first direction from the first and second output electrodes, respectively, and the first input electrode includes a first extension portion extending toward the second output electrode.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: June 7, 2022
    Inventors: Dong Hee Shin, Geunho Lee, Yonghee Lee
  • Patent number: 11333940
    Abstract: In a display device having high reliability, even if being a narrow framing type, and a method for manufacturing thereof, having a display panel, being made up with a first substrate 101 and a second substrate 201, which are adhered with using a seal 301, a main SOC 302 is disposed like a wall, on a peripheral end portion of the first substrate 101 and the second substrate 201, and the seal 301 is disposed inwardly of the main SOC 302. Also, in a method for manufacturing thereof, the main SOC 302 is formed in a region including a cutting plane between the display panel regions neighboring with, and on the cutting plane is made the cutting thereof.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: May 17, 2022
    Assignee: Japan Display Inc.
    Inventor: Eisuke Hatakeyama
  • Patent number: 11326101
    Abstract: A liquid crystal panel and a manufacture method thereof, a liquid crystal display device are disclosed. The manufacture method of a liquid crystal panel includes: providing a first substrate, a second substrate and a liquid crystal layer between the first substrate and the second substrate, wherein the liquid crystal layer includes a liquid crystal material and photopolymerizable monomers; and exposing the liquid crystal layer to allow the photopolymerizable monomers to be polymerized at a position of exposing to form a columnar spacer.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: May 10, 2022
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Xibin Shao, Feifei Wang, Hongming Zhan, Ping Song, Deqiang Liu
  • Patent number: 11327365
    Abstract: The present application provides an apparatus for fabricating a display substrate of a liquid crystal display panel. The apparatus includes a support for receiving a mother substrate having a plurality of display substrate units and a photoalignment material layer on the plurality of display substrate units; a plurality of polarizers including a first polarizer having a first light transmission axis, and a second polarizer having a second light transmission axis non-parallel to the first light transmission axis; and a light source for irradiating a light on a first display substrate unit of the plurality of display substrate units through the first polarizer and on a second display substrate unit of the plurality of display substrate units through the second polarizer.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: May 10, 2022
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chengyong Zhan, Ting Wan, Jinliang Hu, Wenming Ren
  • Patent number: 11299675
    Abstract: A polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when the compound is used in a liquid crystal display device; and a composition containing the compound. The compound is represented by formula (1).
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 12, 2022
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro Yano, Fumitaka Kondo, Hiroki Sago
  • Patent number: 11281051
    Abstract: A display panel and a method for fabricating the same are provided. The display panel includes a first substrate, a first protrusion, a first liquid crystal layer, a third liquid crystal layer, a second liquid crystal layer, a second protrusion, and a second substrate in order from top to bottom. The first liquid crystal layer, the second liquid crystal layer, and the third liquid crystal layer include negative type liquid crystal molecules. An absolute value of a dielectric anisotropy parameter of the liquid crystal molecules in the first liquid crystal layer and an absolute value of a dielectric anisotropy parameter of the liquid crystal molecules in the second liquid crystal layer are both greater than an absolute value of a dielectric anisotropy parameter of the liquid crystal molecules in the third liquid crystal layer.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: March 22, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD
    Inventor: Zhongtian Chen
  • Patent number: 11231613
    Abstract: A display apparatus includes a backlight, a first polarizer, a light controlling panel, a second polarizer, a display panel, and a third polarizer sequentially arranged along a direction. A transmission axis of the first polarizer and a transmission axis of the second polarizer are substantially parallel, and the transmission axis of the second polarizer and a transmission axis of the third polarizer are substantially perpendicular. A set of the first polarizer, the light controlling panel, and the second polarizer has a transmittance, and the transmittance has a maximum value when the light controlling panel is not enabled.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: January 25, 2022
    Assignee: Au Optronics Corporation
    Inventors: Guan-Yu Chen, Wei-Ming Cheng, Min-Hsuan Chiu
  • Patent number: 11231625
    Abstract: A liquid crystal panel includes a first substrate, a second substrate, and a liquid crystal layer. A first electrode layer and a first alignment film are disposed on a side of the first substrate facing the second substrate. A second electrode layer and a second alignment film are disposed on a side of the second substrate facing the first substrate. At least one auxiliary electrode layer is disposed between the first alignment film and the second alignment film, and the auxiliary electrode layer is disposed in the liquid crystal layer close to the first alignment film and/or the second alignment film.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: January 25, 2022
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zhongtian Chen
  • Patent number: 11215877
    Abstract: According to an embodiment of the present disclosure, it is provided a display apparatus including a first substrate, a second substrate and a sealant. The back surface of the first substrate is provided with a metal wiring. The metal wiring is provided with a hollow-out region. The metal wiring is arranged in a curved shape.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 4, 2022
    Assignees: CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD., HKC CORPORATON LIMITED
    Inventor: Shishuai Huang
  • Patent number: 11215899
    Abstract: Provided is an optoelectronic element including a first substrate, a first electrode on the first substrate, a first lens pattern disposed on the first electrode and including a liquid crystal and a black dye molecule, a second lens pattern disposed on the first lens pattern, and a second electrode on the second lens pattern, wherein the black dye molecule includes about 1 to 4 azo groups and about 2 to 5 aromatic cyclic compounds.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: January 4, 2022
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Gi Heon Kim, Yong Hae Kim, Chi-Sun Hwang
  • Patent number: 11204529
    Abstract: A display panel and a method for manufacturing a display device are provided. The display panel includes an array substrate, a color film substrate assembled with the array substrate, and liquid crystal molecules sealed between the array substrate and the color film substrate. The array substrate comprises a pixel electrode and a common electrode, orthographic projections of the pixel electrode and the common electrode on the base substrate of the array substrate have an overlapping region, and the liquid crystal molecules have an azimuth angle of 90 degree. As a result, the display panel can have a faster response speed and is applicable to scenarios that require fast and frequent image switching.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: December 21, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shunhang Zhang, Shiyu Zhang, Yoonsung Um, Yunsik Im, Feng Liao
  • Patent number: 11194196
    Abstract: The application provides an array substrate and a liquid crystal display panel. The array substrate includes a substrate, a driving circuit layer, a color resist layer, and a pixel electrode layer which are disposed in a stack. The color resist layer includes a flow guiding portion and a first via hole having an aperture diameter greater than a threshold. The flow guiding portion is connected to at least part of the first via hole and positioned on at least one of an inside and an outside of the first via hole, and a flow guiding surface of the flow guiding portion is connected to a part of an edge of the aperture of the first via hole. According to the present application, the shape of the aperture is changed so that an alignment liquid does not accumulate when flowing through.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: December 7, 2021
    Inventors: Yun Yu, Qingyong Zhu
  • Patent number: 11169418
    Abstract: The present invention provides a liquid crystal alignment device and a method of operating the same. The liquid crystal alignment device includes: a stage; a plurality of slide rails aligned parallel to each other, extending in a first direction and arranged above the stage; and a plurality of ultraviolet lamp tubes aligned parallel to each other and extending in a second direction, and opposite ends of a long axis of each of the plurality of ultraviolet lamp tubes are respectively installed on any two of the plurality of slide rails through the plurality of rollers, such that the plurality of ultraviolet lamp tubes have adjustable intervals in the first direction, wherein the second direction and the first direction are perpendicular to each other.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 9, 2021
    Assignee: TCL China Star Optoelectrenics Technology Co., Ltd.
    Inventor: Rentang Zhao
  • Patent number: 11156887
    Abstract: This application discloses a display panel and a display apparatus. The display panel includes a display area, a seal, a first metal wire, a signal line, a channel and a retaining wall. The seal is correspondingly arranged in a nondisplay area of the display panel. The first metal wire is correspondingly arranged between the display area and the seal. The signal line bridges over the first metal wire and is fed into the display area. The channel is located at a bridging connection position of the first metal wire and the signal line. The retaining wall is arranged at a position corresponding to the channel, beside the first metal wire.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: October 26, 2021
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yunqin Hu
  • Patent number: 11126043
    Abstract: The liquid crystal display device includes: a TFT substrate including scanning lines extending in a first direction and being arranged in a second direction, video signal lines extending in the second direction and being arranged in the first direction, pixel electrodes arranged in regions surrounded by the scanning lines and the video signal lines, and common electrodes formed with an insulating film arranged between the common electrodes and the pixel electrodes; a counter substrate opposed to the TFT substrate; and a liquid crystal. The first common electrode extends between the first and second scanning lines in the first direction, and the second common electrode extends between the second and third scanning lines in the first direction. The first and second common electrodes are electrically connected by a bridge. The bridge covers the first video signal line without covering the second video signal line, when seen in a plan view.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: September 21, 2021
    Assignee: Japan Display Inc.
    Inventor: Motoharu Miyamoto
  • Patent number: 11119374
    Abstract: According to one embodiment, a display device includes a liquid crystal layer between a first substrate and a second substrate. The first substrate includes a wiring line and a pixel electrode. The liquid crystal layer contains a stripe-shaped polymer extending in a first direction and a liquid crystal molecule. The liquid crystal layer contains a first polymer in an area overlapping the wiring line and a second polymer in an area overlapping the pixel electrode. The first polymer includes a first portion extending in a direction different from the first direction. The second polymer includes a second portion extending in a direction different from the first direction. A density of the first portion is higher than a density of the second portion.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 14, 2021
    Assignee: Japan Display Inc.
    Inventors: Kojiro Ikeda, Kentaro Okuyama, Tenfu Nakamura
  • Patent number: 11114646
    Abstract: An organic light emitting display panel and a display device are provided. The organic light emitting display panel includes a substrate, a plurality of organic light emitting diode elements in an array on one side of the substrate, a phase compensation film on a side of the organic light emitting diode elements away from the substrate, and a circular polarizer on a side of the phase compensation film away from the organic light emitting diode elements, wherein the phase compensation film compensates for phase retardation amounts of the circular polarizer at all viewing angles, so that a phase retardation amount of light obliquely passing through the circular polarizer and the phase compensation film is substantially consistent with that of light perpendicularly passing through the circular polarizer and the phase compensation film.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: September 7, 2021
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qian Li, Bing Zhang
  • Patent number: 11112654
    Abstract: A liquid crystal display device, which includes a first substrate and a second substrate disposed to face each other with a liquid crystal sandwiched therebetween. The first substrate is an electrode-provided substrate having a first electrode and a plurality of second electrodes overlaid on the first electrode via an insulating film, formed on a pixel region on a surface on the liquid crystal side, where one of the first electrode and the second electrodes is a pixel electrode and the other is a counter electrode, having a first liquid crystal alignment film formed on the surface on the liquid crystal side of the first substrate covered with the second electrodes. The second substrate is a substrate having a second liquid crystal alignment film formed on a surface on the liquid crystal side, the second liquid crystal alignment film containing a photosensitive side chain type polymer which develops liquid crystallinity.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 7, 2021
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Atsuhiko Mandai, Naoki Sakumoto
  • Patent number: 11069977
    Abstract: A liquid crystal alignment agent according to the present invention includes: an alignment film forming material; and an organic solvent. The organic solvent contains a compound which has at least two functional groups selected from the group consisting of a methylene group, a methyl group, an ether group, a ketone group, and a hydroxyl group, and does not contain a nitrogen atom.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: July 20, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Isamu Miyake
  • Patent number: 11067855
    Abstract: A method for aligning a layer of photopolymers includes projecting light onto a rotating optical element and asymmetrically focusing the light transmitted through the rotating optical element onto a layer of photopolymers. The asymmetrically focused light is swept across different regions of the layer of photopolymers while a direction of polarization in the light is varied due to the rotation of the first optical element, producing a pattern of orientations for the layer of photopolymers. The method can be incorporated in a raster-scanning process to produce an alignment pattern in a layer of photopolymers with a large surface area, and is faster and provides improved precision and/or uniformity of the alignment pattern compared to currently available methods. An apparatus for aligning the layer of photopolymers is also disclosed.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: July 20, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Babak Amirsolaimani, Ying Geng, Scott Charles McEldowney