Formed As Walls (e.g., Between Pixels) Or Integral With Substrate Patents (Class 349/156)
  • Patent number: 11169416
    Abstract: A liquid crystal display device includes a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed over the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first film is a photo alignment film, and a thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy formula (2), d2<d1??(2).
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: November 9, 2021
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 11163202
    Abstract: A display panel a first display substrate including a non-display area in which a driving circuit and a light shielding layer are disposed, and a display area in which a pixel electrode connected to the driving circuit is disposed, a second display substrate facing the first display substrate, and a liquid crystal layer disposed between the first display substrate and the second display substrate. The driving circuit includes a first transistor, a second transistor, a first branch electrode connected to the first transistor, a second branch electrode connected to the second transistor and overlapping with the first branch electrode in a direction parallel to a surface of the first display substrate, and a connection electrode connecting the first and second branch electrodes disposed on different layers from each other. The light shielding layer overlaps with the first and second transistors and exposes the first and second branch electrodes.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: November 2, 2021
    Inventors: Doyeong Park, Seongyoung Lee, Seulbee Lee
  • Patent number: 11163203
    Abstract: A color-filter on array (COA) substrate and a method of fabricating the same are described. A first through hole is disposed in a first passivation layer, a second through hole is disposed in the color resist layer, and a third through hole is disposed in the second passivation layer, wherein the first through hole communicates with the second through hole, and the second through hole communicates with the third through hole to collectively form an opening. A hole diameter of the opening gradually increases from bottom to top. A part of the color resist layer is etched while the second passivation layer is etched so as to reduce a taper angle of the opening. Therefore, a relatively large impedance value impedance or disconnection is avoided when depositing a pixel electrode.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: November 2, 2021
    Inventors: Ting Zhao, Guo Zhao
  • Patent number: 11137656
    Abstract: A flexible bistable light modulating device includes a first flexible transparent conductive film and a second flexible transparent conductive film; and a liquid crystal layer disposed between the first flexible transparent conductive film and the second flexible transparent conductive film. The liquid crystal layer includes a liquid crystal mixture and a sealing structure to seal the liquid crystal mixture within the liquid crystal layer. The liquid crystal mixture includes at least one bimesogenic compound, at least one nematic liquid crystal compound and at least one chiral compound; and a plurality of supporting structures dispersing inside the liquid crystal layer. The weight percentage of the supporting structures over the liquid crystal mixture is 0.1%-4.5%. The flexible bistable light modulating device has two states that are stable without application of an external electric field, thus saving energy, simplifying the production process, saving cost and improving product yield.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: October 5, 2021
    Assignee: Smart Liquid Crystal Technologies Co., Ltd.
    Inventors: Mengchao Zhou, Fei Wang, Hongwei Zhang, Hui Xu, Dong Li
  • Patent number: 11119356
    Abstract: The present disclosure provides a flexible backlight, a method for manufacturing the same, and a display device. The flexible backlight includes: a first flexible substrate and a second flexible substrate arranged opposite to each other; a plurality of spacers arranged between the first flexible substrate and the second flexible substrate, for supporting a spacing between the first flexible substrate and the second flexible substrate, and for forming an accommodating chamber between the first flexible substrate and the second flexible substrate; a first electrode and a second electrode for forming an electric field; a gas contained in the accommodating chamber, in which the gas is capable of emitting a non-visible light by the action of the electric field; and a photoexcitation layer arranged on the second flexible substrate, in which the photoexcitation layer can emit a visible light under illumination of the non-visible light and is in contact with the spacer.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: September 14, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shuangliang Qin, Dongxiu Li
  • Patent number: 11106094
    Abstract: A liquid crystal display comprises a plurality of pixels, wherein the pixels comprise first pixels, second pixels, and third pixels, each of the third pixels comprises a third/first pixel and a third/second pixel including spacers that are different from each other, each of the pixels comprises a transistor and an opening exposing at least part of the transistor, at least one of the first pixel and the second pixel comprises a first spacer, the third/first pixel comprises a second spacer having a smaller area than the first spacer in a plan view, the third/second pixel comprises a third spacer having a different height from the first spacer and the second spacer, the first spacer and the second spacer overlap the opening of the pixel in which the first spacer and the second spacer are respectively disposed, and the third pixels corresponds to different colors from the first pixel and the second pixel.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: August 31, 2021
    Inventor: Yong Hee Lee
  • Patent number: 11073932
    Abstract: A touch display panel and a display device are provided. The touch display panel includes a display area and a non-display area around the display area. The non-display area includes a plurality of pressure sensors. At least one of the plurality of pressure sensors is located a distance of H away from a closest corner of the touch display panel, where H satisfies: 2.5 mm<H<42.5 mm. The touch display panel and the display device are provided to improve the pressure detection of the touch display panel.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 27, 2021
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Liang Liu, Feng Lu, Qijun Yao, Shaolong Ma
  • Patent number: 11061289
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer supported between the first substrate and the second substrate, wherein the first substrate includes a main spacer and a sub-spacer protruding toward the liquid crystal layer, a height of the main spacer is greater than a height of the sub-spacer, the second substrate includes, on a surface facing the liquid crystal layer, an alignment film, a main pedestal portion that comes into contact with the main spacer, and a sub-pedestal portion opposite the sub-spacer, an area of a top portion of the main pedestal portion is greater than an area of a top portion of the main spacer, and an area of a top portion of the sub-pedestal portion is less than an area of a top portion of the sub-spacer.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: July 13, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Junichi Morinaga, Shingo Kamitani, Katsuya Ogawa
  • Patent number: 11030930
    Abstract: A display device may comprise a substrate which includes a display area including a first pixel and a non-display area including a second pixel, a first data line which is disposed on the substrate and applies a data signal to the first pixel, a second data line which is disposed on the substrate and applies a data signal to the second pixel and a gate line which is disposed on the substrate and applies gate signals to the first pixel and the second pixel at the same timing, wherein the first pixel and the second pixel have different area from each other.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 8, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HyungBeom Shin, JaeHyung Jo
  • Patent number: 10989969
    Abstract: The present invention discloses a display panel. The display panel comprises a substrate, a plurality of active switches disposed on the substrate, a color filter layer formed on the active switches, and a transparent photoresist layer formed on and covering the color filter layer. The transparent photoresist layer comprises a protective layer and at least one photo spacer.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: April 27, 2021
    Assignees: HKC Corporation Limited, Chongqing HKC Optoelectronics Technology Co., Ltd.
    Inventor: Chung-Kuang Chien
  • Patent number: 10916465
    Abstract: Embodiments relate to transferring dies or other electronic components from a carrier substrate to a target substrate of a device as part of chip assembly for the device. Bonding material is applied to selected dies on a carrier substrate by direct boning, or to corresponding die transfer locations on a target substrate. The carrier substrate is then brought into contact with the target substrate to transfer each of the selected dies to the carrier substrate. Dies can also be directly bonded to the target substrate even in the presence of other die in situ (e.g., from a previous bonding cycle), hence, enables more than one direct bond cycle to be carried out for a target substrate. As such, multi-color (RGB) display elements can be assembled in stages (e.g., separate bonding cycles) in a flexible manner to provide redundancy or to replace inoperative LED dies.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: February 9, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: William Padraic Henry, Patrick Joseph Hughes, Vincent Brennan
  • Patent number: 10908462
    Abstract: The present disclosure provides a flexible substrate and a liquid crystal panel having the flexible substrate. The flexible substrate includes a color film substrate and a spacer provided on one side of the color film substrate. The spacer includes a first part and a second part that are intersected with each other.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: February 2, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Jie Tong, Xuelu Wang, Yan Wang, Peimao Li, Dongdong Song
  • Patent number: 10895787
    Abstract: A liquid crystal panel includes an array substrate, a counter substrate, and a liquid crystal layer therebetween. The counter substrate includes a sub-pixel in-between light blocking section extending in a grid and surrounding the sub pixels, a first projection projecting from the counter substrate toward the array substrate and having a projecting end that is contacted with a part of the array substrate to define a distance between the substrates, and second projections projecting from the counter substrate toward the array substrate and having projecting ends that are spaced from the array substrate. The first projection and the second projections overlap the sub-pixel in-between light blocking section. A distance between a center line of a width dimension of the sub-pixel in-between light blocking section and a center of each second projection is smaller than a distance between the center line and a center of the first projection.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: January 19, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shingo Kamitani, Junichi Morinaga
  • Patent number: 10877321
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: December 29, 2020
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Patent number: 10859869
    Abstract: In one embodiment, a display device comprises a dimming and display panels and an illumination device. The dimming panel includes first and second substrates and a first liquid crystal layer. The display panel includes third and fourth substrates and a second liquid crystal layer. The illumination device irradiates the dimming panel or the display panel with light. In the display device, at least one of the first, second, third and fourth substrates is a rigid substrate, and at least one of the first, second, third and fourth substrates is a flexible substrate.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: December 8, 2020
    Assignee: Japan Display Inc.
    Inventor: Daiichi Suzuki
  • Patent number: 10838262
    Abstract: In a liquid crystal display device including a TFT substrate and a counter substrate, when an organic passivation film is not formed in the TFT substrate, the distance between the TFT substrate and the counter substrate in the display area of a liquid crystal display panel is provided by a cylindrical spacer. Also, the distance in the area where pixels, scan lines, and image signal lines are not formed within the liquid crystal display panel is provided by the cylindrical spacer. In this case, it is necessary to form a mount. The layer structure of the mount is the same as that of the TFT substrate with which the cylindrical spacer in the display area comes into contact. This makes it possible to equalize the distance of the liquid crystal layer of the liquid crystal display panel without an increase in production cost, and to prevent uneven brightness or color.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: November 17, 2020
    Assignee: Japan Display Inc.
    Inventor: Takahiro Nagami
  • Patent number: 10802328
    Abstract: The application discloses a method for manufacturing a display panel and a baking device for a display panel. The method for manufacturing the display panel includes: coating a color filter on a transparent substrate of a display panel; patterning and solidifying the color filter to form at least one support unit, and baking the support unit until the support unit is lowered to a predetermined height.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: October 13, 2020
    Assignees: HKC CORPORATION LIMITED, CHONGQING HKC OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Chung-Kuang Chien
  • Patent number: 10795215
    Abstract: The present disclosure provides a display panel and a display device, the display panel includes a substrate; a display area, defined at a surface of the substrate, the display area includes a plurality of unit pixel areas, an outer edge of one of the unit pixel areas encloses to form area A1; a photo spacer, including a main photo spacer, one end of the main photo spacer fixedly connects to the substrate, an outer edge of the other end of the main photo spacer encloses to form area A2, A1 and A2 satisfy a relationship: 0.0001?A2/A1?0.0004; and/or, the photo spacer includes an auxiliary photo spacer, one end of the main photo spacer fixedly connects to the substrate, an outer edge of the other end of the auxiliary photo spacer encloses to form an area A3, A1 and A3 satisfy a relationship: 1/100<A3/A1?1.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: October 6, 2020
    Assignee: HKC Corporation Limited
    Inventor: Jianfeng Shan
  • Patent number: 10768489
    Abstract: Embodiments of the present disclosure provide a display panel and a manufacturing method thereof, and a display device. The display panel includes a first substrate and a second substrate that are opposite to each other. The display panel further includes a spacer located on the first substrate, and at least two walls located on the second substrate. The at least two walls form a recess region. The spacer corresponds to the recess region. The at least two walls are configured to limit a movement of the spacer. According to the embodiments of the present disclosure, the spacer is effectively prevented from slipping into the display region when the display panel is subjected to an external force.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: September 8, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Songyang Jiang, Yongjun Yoon, Zhou Rui
  • Patent number: 10756297
    Abstract: A flexible panel is provided. The flexible panel includes a substrate, an organic light-emitting diode device, a thin-film encapsulation layer and a retaining wall. Wherein the organic light-emitting diode device is formed on the substrate, the thin-film encapsulation layer is formed on the substrate and covers the organic light-emitting diode device, the retaining wall is disposed on the substrate and is around an outside of the organic light-emitting diode device. Wherein the first portion is closer to a light-emitting region of the flexible panel than the second portion. A manufacturing method for the flexible panel and a display device using the flexible panel are also disclosed.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 25, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Jing Huang, Hsiang Lun Hsu
  • Patent number: 10747065
    Abstract: The present disclosure discloses a display panel and a display device. The display panel comprises a switch array substrate, an opposite substrate and a display medium layer. The switch array substrate includes a scanning line; the opposite substrate includes a color resistance layer and a plurality of spacers, the projections of the first color resistance and the second color resistance on the switch array substrate and the scanning line respectively have a first overlapping region and a second spacer; and a first distance from a first color resistance to the switch array substrate is less than a second distance from a second color resistance to the switch array substrate.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: August 18, 2020
    Assignee: HKC Corporation Limited
    Inventor: Jianfeng Shan
  • Patent number: 10747046
    Abstract: A display substrate includes a base substrate; a black matrix on the base substrate and in the black matrix region, the black matrix comprising a plurality of rows and a plurality of columns intersecting each other; a first color filter layer having a net structure with a plurality of openings, and comprising a first portion in the first region and a second portion in the black matrix region, the first color filter layer substantially covering the plurality of columns of the black matrix; a second color filter layer in the second region; and a third color filter layer in the third region. A first height of a surface of the first portion away from the base substrate relative to the base substrate and a second height of a surface of the second portion away from the base substrate relative to the base substrate are within 30% of each other.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: August 18, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Anxin Dong, Huifang Yuan, Bin Li, Sangman Yuk, Tao Zhu, Haibin Yin, Jian Chen, Qun Fang, Wenhao Tang
  • Patent number: 10712602
    Abstract: Optical device includes first substrate being light transmissive, second substrate opposing first substrate and being light transmissive, and light distribution layer disposed between first substrate and second substrate and distributing incident light. Light distribution layer includes uneven structure portion having a plurality of projections repeated in the z axial direction parallel to the main face of first substrate, and optical medium portion containing a birefringent material and disposed to fill a plurality of recesses that are spaces between the plurality of projections. Light blocking component configured to block at least part of incident light is disposed in the plurality of recesses.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: July 14, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuki Kitamura, Hiroshi Fukushima, Norihiro Ito, Hirofumi Kubota, Masuyuki Ota
  • Patent number: 10707445
    Abstract: A display apparatus includes a substrate, a display arranged on the substrate and including a plurality of display elements, and an encapsulator arranged on the display and encapsulating the display. The encapsulator may include at least one inorganic film and at least one organic film, and the at least one organic film may include a matrix and an ultraviolet light absorbent dispersed in the matrix.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: July 7, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wonmin Yun, Yisu Kim, Eungseok Park, Byoungduk Lee, Yoonhyeung Cho, Yongchan Ju
  • Patent number: 10705388
    Abstract: The embodiments of the present disclosure provide a display panel, a method for producing the same and a display apparatus. The display panel includes a first sub-pixel region; a second sub-pixel region, wherein an aperture opening ratio of the first sub-pixel region is less than an aperture opening ratio of the second sub-pixel region; and an insulation layer, having a first thickness at the first sub-pixel region less than a second thickness of the insulation layer at the second sub-pixel region, so that a first cell gap of the display panel at the first sub-pixel region is larger than a second cell gap of the display panel at the second sub-pixel region, thereby at least partially compensating for a difference between the aperture opening ratio of the first sub-pixel region and the aperture opening ratio of the second sub-pixel region.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: July 7, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jinming Zhu, Hui Wang, Jia Liu, Yuanhui Guo
  • Patent number: 10649261
    Abstract: A liquid crystal eWriter system with a resistive digitizer and having palm rejection includes the following features. An eWriter includes eWriter substrates that are spaced apart from each other, an upper one of the eWriter substrates being formed of a flexible, clear polymeric material and a lower one of the eWriter substrates being formed of a flexible polymeric material. Electrically conductive layers are spaced apart from each other and located between the eWriter substrates. A dispersion layer including a dispersion of cholesteric liquid crystal material and polymer is disposed between the electrically conductive layers. Pressure applied to the eWriter changes a reflectance of the cholesteric liquid crystal material forming an image. A resistive digitizer determines a location of the pressure applied to the eWriter.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 12, 2020
    Assignee: Kent Displays Inc.
    Inventors: Mark Lightfoot, Erica N. Montbach, Duane Marhefka, Asad A. Khan
  • Patent number: 10649268
    Abstract: A display panel and a display device, comprising: an opposed substrate and an array substrate opposite to the opposed substrate, as well as a liquid crystal layer provided between the opposed substrate and the array substrate, and recess structures which are provided in at least one of the opposed substrate and the array substrate and provided at the side facing the liquid crystal layer. The display panel has a display region, a non-visual region surrounding the display region, and a sealant region surrounding the non-visual region. The recess structures are provided at corners of the non-visual region.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 12, 2020
    Assignees: BOE Technology Group Co., Ltd., Chongqing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Jingyu Wang, Jungho Park
  • Patent number: 10642108
    Abstract: This invention relates to a polymer-dispersed liquid crystal device, including a substrate layer; a neutralized first electrode layer formed on the substrate layer; a polymer-dispersed liquid crystal layer formed on the first electrode layer; a neutralized second electrode layer formed on the polymer-dispersed liquid crystal layer; and a substrate layer formed on the second electrode layer, and to a method of manufacturing the same.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: May 5, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Yu-Jin Woo, Mi-Kyoung Kim, Jung-Sun You
  • Patent number: 10627666
    Abstract: A display panel, manufacturing method and display device are provided. The display panel includes: multiple pixel units arranged in an array, each including first sub-pixel and white sub-pixel; and color-film substrate. The color-substrate includes basis substrate and color resist layer formed on the basis substrate, wherein the color resist layer at least includes first color resist in first color resist region and compensating color resist in second color resist region, first and second color resist regions respectively corresponding to first and second sub-pixels. The color-film substrate further includes photo spacer located on one side of color resist layer away from basis substrate, orthographic projection of photo spacer on a plane where display panel is located overlaps orthographic projection of first color resist on this plane, and orthographic projection of photo spacer on this plane overlaps orthographic projection of compensating color resist on this plane.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 21, 2020
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Donghua Li, Xiaoli Wei, Ling Wu, Boping Shen, Xiufeng Zhou
  • Patent number: 10600815
    Abstract: According to one embodiment, a display device includes a first substrate including a first basement, a scanning line and a signal line, arranged in a display area, a switching element arranged in the display area and electrically connected to the scanning line and the signal line, and a first conductive layer arranged in a periphery region surrounding the display area and formed from a material different from that of the scanning line, a second substrate including a second basement opposing the first conductive layer and spaced therefrom, and a second conductive layer, and includes a first hole which penetrates the second basement, and a connecting material electrically connecting the first conductive layer and the second conductive layer via the first hole.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: March 24, 2020
    Assignee: Japan Display Inc.
    Inventor: Gen Koide
  • Patent number: 10571766
    Abstract: A display panel a first display substrate including a non-display area in which a driving circuit and a light shielding layer are disposed, and a display area in which a pixel electrode connected to the driving circuit is disposed, a second display substrate facing the first display substrate, and a liquid crystal layer disposed between the first display substrate and the second display substrate. The driving circuit includes a first transistor, a second transistor, a first branch electrode connected to the first transistor, a second branch electrode connected to the second transistor and overlapping with the first branch electrode in a direction parallel to a surface of the first display substrate, and a connection electrode connecting the first and second branch electrodes disposed on different layers from each other. The light shielding layer overlaps with the first and second transistors and exposes the first and second branch electrodes.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: February 25, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Doyeong Park, Seongyoung Lee, Seulbee Lee
  • Patent number: 10564483
    Abstract: A method of manufacturing a liquid crystal device having a first substrate and a second substrate facing each other with a liquid crystal layer interposed therebetween, and a sealing member formed in a peripheral portion of at least one of the substrates. The method includes forming the sealing member, disposing the liquid crystal layer inside the sealing member, and bonding the first substrate to the second substrate. In forming the sealing member, a ring-shaped portion that seals the liquid crystal layer inside the sealing member, a first sealing layer and a second sealing layer that face each other to be separated from each other are formed. In the bonding of the first substrate to the second substrate, a junction portion is formed in which the first and second sealing layers are pressed and joined outside the sealing member so as to form the ring-shaped portion.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: February 18, 2020
    Assignee: 138 EAST LCD ADVANCEMENTS LIMITED
    Inventors: Yoichi Momose, Satoshi Hasegawa
  • Patent number: 10558091
    Abstract: A liquid crystal display device includes a TFT substrate having a display region where pixels each having a TFT and a pixel electrode are formed in a matrix, a counter substrate having a display region where color filters of three colors are formed in a matrix, the TFT substrate and the counter substrate being bonded together with a sealing material in a seal portion at a periphery, and liquid crystal sealed between the TFT substrate and the counter substrate by the seal material. In the display region, a first insulation film, a first alignment film, a first columnar spacer, an overcoat film, a first color filter among the color filters of three colors are stacked in this order between the TFT substrate and the counter substrate.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 11, 2020
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takashi Yamamoto, Tomoya Sugano, Takamitsu Kamada
  • Patent number: 10558095
    Abstract: A liquid crystal display includes a first pixel, a second pixel, and a third pixel each displaying a different color. A first data line is positioned between the first pixel and the second pixel, and a second data line is positioned between the second pixel and the third pixel. A first pixel electrode, a second pixel electrode, and a third pixel electrode are respectively positioned in the first, second, and third pixels. An interval between the first pixel electrode and the first data line is larger than an interval between the second pixel electrode and the first data line. An interval between the second pixel electrode and the second data line is smaller than an interval between the third pixel electrode and the second data line.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soo Jeong Huh, Dong Wook Kim, Sung Jin Hong
  • Patent number: 10557191
    Abstract: A method for manufacturing a vapor deposition mask (100) including a resin layer (10), and a magnetic metal body (20) formed on the resin layer (10), the method including the steps of: (A) providing a magnetic metal body (20) having at least one first opening (25); (B) providing a substrate (60); (C) forming a resin layer (10) by applying a solution including a resin material or a varnish of a resin material on a surface of a substrate (60), and then performing a heat treatment thereon; (D) securing the resin layer (10) formed on the substrate (60) on the magnetic metal body (20) so as to cover the at least one first opening (25); (E) forming a plurality of second openings (13) in a region of the resin layer (10) that is located in the at least one first opening (25) of the magnetic metal body (20); and (F) after the step (E), removing the substrate (60) from the resin layer (10).
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 11, 2020
    Assignee: Sakai Display Products Corporation
    Inventors: Koshi Nishida, Susumu Sakio, Katsuhiko Kishimoto
  • Patent number: 10545363
    Abstract: The present invention relates to a display device having an integral self-capacitance touch sensor, which can enhance a display property and touch performance by reducing parasitic capacitance and resistance, comprising: a plurality of gate lines and a plurality of data lines that are arranged on a first substrate to cross each other; a plurality of pixel electrodes that are connected to the plurality of gate lines and data lines; a plurality of common and touch electrodes, each of which is formed to overlap some of the plurality of pixel electrodes; and a plurality of routing wires connected to the plurality of common and touch electrodes, respectively, to extend parallel to each other, wherein the plurality of routing wires overlap the data lines with a first insulation film therebetween for covering the data lines, or overlap the gate lines that cross the data lines, and the common and touch electrodes are connected to the routing wires, respectively, through contact holes formed through a second insulatio
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: January 28, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Soo Hwang, Min Su Kim
  • Patent number: 10539820
    Abstract: A touch-panel liquid-crystal display device in one embodiment includes a metal line formed on a thin-film transistor array substrate, a gap column spacer and a push column spacer on a portion of a color filter array substrate that corresponds to an intersection of gate and data lines of the thin-film transistor array substrate, and a liquid-crystal layer between the thin-film transistor array substrate and the color filter array substrate. The gap column spacer and the push column spacer have the same height and the gap column spacer is located on the metal line, which facilitates an exposure process, minimizes generation of foreign substances when printing an alignment layer, and enables adjustment of the optimum amount of liquid crystals when liquid-crystal dotting is performed. The push column spacer is located on the metal line when the device can be pushed or bent by external force, and thus increases panel rigidity.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: In-Duk Song, Chi-Hyuck Park, Jin-Woo Choi, Sung-Ho Kim, Woo-Seock Lee, Haruhisa Iida
  • Patent number: 10539833
    Abstract: The present invention prevents the shaving of an alignment film caused by a columnar spacer in a liquid crystal display device of an IPS method using photo-alignment. A plinth higher than a pixel electrode is formed at a part where a columnar spacer formed over a counter substrate touches a TFT substrate. When an alignment film of a double-layered structure is applied over the pixel electrode and the plinth, the thickness of the alignment film over the plinth reduces by a leveling effect. When photo-alignment is applied in the state, a photodegraded upper alignment film over the plinth disappears and a lower alignment film having a high mechanical strength remains. As a result, it is possible to prevent the shaving of the alignment film.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: January 21, 2020
    Assignee: Japan Display Inc.
    Inventors: Noboru Kunimatsu, Masaki Matsumori, Hidehiro Sonoda, Yasushi Tomioka, Toshiki Kaneko
  • Patent number: 10528198
    Abstract: A display panel and the like with a novel structure are provided. In the display panel, a first functional layer includes a pixel circuit and a first insulating film. A second functional layer includes a coloring film and a second insulating film. The first insulating film and the second insulating film each have a thickness of 0.5 ?m to 3 ?m and a Young's modulus of 3 GPa to 12 GPa. A sealing material is provided between a first base and a second base. A structure body is provided between the first base and the second base, and keeps a predetermined gap between the first and second bases. A pixel is surrounded by the first base, the second base, and the sealing material. A display element in the pixel is electrically connected to a pixel circuit and overlaps with a coloring film and a liquid crystal material.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: January 7, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Koichi Takeshima, Takayuki Ohide, Kenji Shinozaki, Kanpei Kojima
  • Patent number: 10514568
    Abstract: A color filter substrate and a curved surface display device are disclosed. The technical field of display is related to. Dark stripes appearing at a position corresponding to a central line of a sub pixel region can be eliminated, and a display effect of the curved display device can be improved. The color filter substrate includes a first light shading region corresponding to a gate line and a data line of an array substrate; and a second light shading region corresponding to a central line of a sub pixel region of the array substrate. A width of the second light shading region is larger than a width of the central line of the sub pixel region.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: December 24, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chuan Wu
  • Patent number: 10516057
    Abstract: An electrowetting display device is presented. The device includes a support plate and a plurality of pixel walls over the support plate. The plurality of pixel walls are associated with an electrowetting pixel. The device includes a switch over the support plate. The switch includes a first terminal. The device includes an electrode over the support plate. The electrode is electrically connected to the first terminal of the switch. The electrode defines a notch region extending from a first end of the electrode towards a first pixel wall in the plurality of pixel walls. The device includes an insulated notch structure that includes a dielectric layer. The insulated notch structure is over at least a portion of the switch and at least a portion of the notch region.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: December 24, 2019
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Toru Sakai, Abhishek Kumar
  • Patent number: 10509272
    Abstract: A display panel and a display apparatus includes the display panel. The display panel includes a first substrate, a second substrate and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate are disposed opposite to each other, the first substrate comprises a pixel electrode, the second substrate comprises a common electrode, and the common electrode is formed with an opening.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 17, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Jianbo Xian, Xueguang Hao, Yuxin Zhang, Yong Hu
  • Patent number: 10473986
    Abstract: A liquid crystal display device includes: a TFT substrate having gate lines and data lines arranged thereon, the gate lines extending in a first direction and arranged in a second direction, the data lines extending in the second direction and arranged in the first direction; a counter substrate having a black matrix and a color filter; and liquid crystals put between the TFT substrate and the counter substrate. Columnar spacers are formed on the counter substrate. Pedestals are formed on portions of the TFT substrate, the portions corresponding to the columnar spacers. A convex portion and a concave portion are present at the top end of the columnar spacer. The pedestal is formed corresponding to the concave portion. The concave portion is opened at the ends thereof and connected to the lateral side of the columnar spacer.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 12, 2019
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Noboru Kunimatsu, Yosuke Hyodo, Toshiki Kaneko, Yuko Matsumoto
  • Patent number: 10475969
    Abstract: A color converter and a method of manufacturing a color converter are provided. The color converter includes: a base substrate; a wavelength conversion pattern layer including a plurality of wavelength conversion layers disposed on the base substrate to be spaced apart from each other, and an overcoat layer disposed on the wavelength conversion pattern layer to cover at least a part of the wavelength conversion pattern layer, wherein the overcoat layer has an upper surface having a higher flatness than a lower surface.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 12, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: You Young Jin, Jang Soo Kim, Jae Cheol Park, Wang Su Hong
  • Patent number: 10459276
    Abstract: A liquid crystal display includes a first substrate including a light transmitting area and a light blocking area, a gate conductor configured to transfer gate signals and a data conductor configured to transfer data voltages, the gate conductor and the data conductor disposed on the first substrate, a color filter disposed on the gate conductor, a black column spacer disposed on the color filter and corresponding to the light blocking area, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate, in which in the light blocking area, the color filter includes a step, the black column spacer overlaps the color filter including the step, and the black column spacer includes spacers having the same thickness.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: October 29, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki Pyo Hong, Jun Seok Lee, Sang Woo Whangbo
  • Patent number: 10451926
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal sandwiched between the substrates, and a display region. A hole portion is formed in the display region. A first seal portion is formed to surround the display region. A second seal portion is formed to surround the hole portion. The first and the second seal portions seal the liquid crystal. The second seal portion has a first end portion on the liquid crystal side and a second end portion on the opposite side of the liquid crystal side. A sealing material is present in the first end portion. A sealing material is present in the second end portion. A wall-like spacer is formed between the first and the second end portions to surround the hole portion. The wall-like spacer defines the gap between the first and the second substrates.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventors: Junko Nagasawa, Hideki Shiina
  • Patent number: 10429696
    Abstract: A liquid crystal display according to an exemplary embodiment of the present disclosure includes: a first substrate including a plurality of unit regions positioned at a display area in a plan view; a liquid crystal layer opposing the first substrate; a unit electrode portion positioned on a first surface of the first substrate at one unit region; a lower dam positioned at a peripheral area positioned around the display area in the plan view; and a protrusion positioned corresponding to the unit region in the plan view. The lower dam and protrusion are positioned between the first substrate and the liquid crystal layer and protruded toward the liquid crystal layer. The protrusion enclosing a portion around the unit region with respect to a center of the unit region in the plan view. The lower dam and the protrusion are positioned at a same layer and include the same material.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 1, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Keun Kim, Min Wook Park
  • Patent number: 10401614
    Abstract: A system and method for an electrowetting display device are presented. The electrowetting display device includes a first support plate and a second support plate, A plurality of pixel walls associated with an electrowetting pixel are formed over the first support plate. A color filter is over the electrowetting pixel. The color filter allows propagation of visible light of a first color and prevents propagation of visible light of a second color. In an embodiment, the color filter includes a layer of light-absorbing photoresist that is patterned into a first plurality of regions and a second plurality of regions. Each region in the first plurality of regions has a first optical density and each region in the second plurality of regions has a second optical density so that the color filter has a non-uniform optical density.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 3, 2019
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Sridhar Guntaka, Toru Sakai, Karel Johannes Gerhardus Hinnen
  • Patent number: 10394088
    Abstract: Provided are a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes a first substrate and a second substrate opposite to each other. The first substrate has a first surface and a second surface opposite to each other. The second substrate includes a third surface and a fourth surface opposite to each other. The third surface is arranged adjacent to the first surface. The first substrate includes a main photo spacer, a first sub photo spacer, and a second sub photo spacer formed thereon. The main photo spacer, the first sub photo spacer, and the second sub photo spacer have ends that are adjacent to the third surface and are spaced from the third surface by different distances. The liquid crystal display panel has an enhanced displaying quality.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: August 27, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Yuejun Tang
  • Patent number: 10379405
    Abstract: A liquid crystal display device includes a counter substrate having a glass substrate, a color layer on the glass substrate, an overcoating layer on the color layer, and a counter protrusion and a counter wall protrusion on the overcoating layer. The counter protrusion is located in an image display region. The counter wall protrusion is located in a peripheral region enclosing the image display region. The counter protrusion and the counter wall protrusion are of substantially a same height. A first protrusion distance from the glass substrate to a top of the counter protrusion is shorter than a second protrusion distance from the glass substrate to a top of the counter wall protrusion. According to the liquid crystal display device configured as above, an outer periphery of a display panel does not bend.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 13, 2019
    Assignee: Japan Display Inc.
    Inventors: Ryota Takasaki, Yusuke Morita, Hirofumi Funakoshi