Patents Examined by Paisley L Wilson
  • Patent number: 10656310
    Abstract: An optical film is provided. The optical film includes a base film and a cover film. The base film includes a base member and a plurality of lens patterns disposed on the base member. The plurality of lens patterns protrudes from the base member and extends in a first direction. The cover film is disposed on the base film to cover the base member and the plurality of lens patterns. A refractive index of at least one of the lens patterns is smaller than a refractive index of the cover film. An aspect ratio of the at least one of the lens patterns ranges from 0.8 to 1.6.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Hwan Chung, Ju Youn Son, Joong Hyun Kim, Chan Jae Park
  • Patent number: 10649284
    Abstract: A liquid crystal display panel and a liquid crystal display device are provided. The liquid crystal display panel includes a first substrate having a plurality of pixel electrodes. Each of the pixel electrodes includes a horizontal trunk electrode and a vertical trunk electrode through which a pixel unit corresponding to the pixel electrode is divided into four light-transmitting areas, and two adjacent light-transmitting areas have different alignment directions. The pixel electrode also includes a plurality of branch electrodes located in the four light-transmitting areas. The branch electrodes are parallel to the horizontal trunk electrode or the vertical trunk electrode.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: May 12, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Bochin Tsuei
  • Patent number: 10649287
    Abstract: In this display device, an electrode layer for an upper electrode and a lower electrode is formed on an array substrate via a dielectric film, one of the upper electrode and the lower electrode is a pixel electrode, the other thereof is a common electrode, and an opening portion for generating horizontal electric field in a liquid crystal layer is formed in accordance with a shape of the electrode layer in a plan view. A CF substrate has a light-shielding film (BM) including a lateral BM portion. The opening portion has a plurality of slits in an X direction, and an end portion of an outermost slit in a Y direction is concealed by the lateral BM portion overlapped in a Z direction.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: May 12, 2020
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 10634942
    Abstract: An electro-optical device includes a pixel electrode, a light shielding, a first insulator, a second insulator provided to be in contact with the first insulator on an opening region, a base member including a concave portion disposed to an outside of the second insulator and overlapped with the second insulator, and a lens member provided on the base member to cover the concave portion, and having the refractive index higher than that of the base member, in which the second insulator functions as a waveguide which reflects incident light at an interface between the second insulator and the first insulator, and propagates the incident light inside the second insulator, and the lens member refracts the incident light incident on the lens member from the second insulator or the incident light incident on the second insulator from the lens member at an interface with the concave portion.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: April 28, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Satoshi Ito, Daisuke Sawaki
  • Patent number: 10627663
    Abstract: The embodiments of the present disclosure relate to a liquid crystal grating, a display device, and methods for controlling thereof.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: April 21, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Qian Wang, Xiaochuan Chen, Wenqing Zhao, Wei Wang, Jian Gao, Xianqin Meng, Zhongxiao Li, Chenyu Chen
  • Patent number: 10620473
    Abstract: A display device is configured such that a through-hole extends through a liquid crystal panel and a light guide plate, a fastener for coupling the hands of a watch is coupled to the through-hole, and the formation of a dark region is prevented due to interference between the fastener and light from a light source around the through-hole. At least one flat side surface for minimizing interference with the light from the light source is provided on the fastener, whereby uniform luminance is provided around the through-hole.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: April 14, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Se-Hwan Jeon, Keum-Young Oh, Ji-Soon Oh
  • Patent number: 10591792
    Abstract: A liquid crystal display panel and device is provided. In the panel, a gate electrode of a first thin-film transistor of a pixel at (n)th row and (2k+1)th column connects to a second scan line of pixels in (n?1)th row, a source electrode of the first thin-film transistor of the pixel at (n)th row and (2k+1)th column connects to a corresponding common line, and a drain electrode of the first thin-film transistor of the pixel at (n)th row and (2k+1)th column connects to a pixel at (n)th row and (2k+1)th column.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: March 17, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Sikun Hao
  • Patent number: 10591758
    Abstract: A curved liquid crystal display panel and a curved liquid crystal display device are disclosed. The curved liquid crystal display panel comprises: two substrates curved towards a same direction with liquid crystals filled therebetween to form a curved liquid crystal layer; and a transparent layer covering an outer surface of a glass of at least one of the substrates, a stress-optical coefficient of the glass of the substrate and a stress-optical coefficient of the transparent layer at a same side of the liquid crystal layer have opposite signs, wherein the outer surface of the glass of the substrate is a surface of the glass of the substrate away from the liquid crystals. The curved liquid crystal display device comprises the curved liquid crystal display panel. The optical rotation effects of the glass of the substrate and the transparent layer located at the same side of the liquid crystal layer are opposite from each other, optical delay thereof are counteracted by each other.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: March 17, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weili Zhao, Jae-Geon You
  • Patent number: 10585318
    Abstract: A display device includes: a display panel including a first substrate and a second substrate facing each other and a liquid crystal layer; and a driving unit on a side of the display panel. The driving unit includes: a first wiring on the first substrate; a first passivation layer on the first wiring, the first passivation layer having first contact holes; a second wiring on the first passivation layer, the second wiring connected to the first wiring through the first contact hole; a second passivation layer on the second wiring, the second passivation layer having second contact holes; a third wiring on the second passivation layer, the third wiring connected to the second wiring through the second contact hole; and a driving integrated circuit (“IC”) on the third wiring.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: March 10, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Bonyong Koo, Dongwon Woo
  • Patent number: 10578915
    Abstract: A liquid crystal display device has a liquid crystal panel including a liquid crystal cell and a polarizing plate; and a backlight unit including a light source. An outermost surface of the liquid crystal panel on the backlight unit side is a surface of a protective film included in the polarizing plate, an outermost surface of the backlight unit on the liquid crystal panel side is a surface of a diffusion member, and where an arithmetic mean roughness measured on an outermost surface of the liquid crystal panel on the backlight unit side is Ra1, a pencil hardness is P1, an arithmetic mean roughness measured on an outermost surface of the backlight unit on the liquid crystal panel side is Ra2, and a pencil hardness is P2, Expression 1: 33 nm<Ra1<135 nm, Expression 2: Ra2<15 nm, and Expression 3: P1<P2 are satisfied.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 3, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Ryuji Saneto, Yuuichi Fukushige, Masato Nagura, Hitoshi Namikawa, Takashi Tamada
  • Patent number: 10572078
    Abstract: A touch electrode layer and a touch panel are provided. The touch electrode layer includes a first touch electrode and a second touch electrode. At least a part of the first touch electrode is surrounded by the second touch electrode so that the first touch electrode has a first touch electrode portion surrounded by the second touch electrode, and the first touch electrode portion surrounded by the second touch electrode is of a circular or oval shape; a first gap is formed between the first touch electrode portion and the second touch electrode which surrounds the first touch electrode portion; and the first touch electrode and the second touch electrode are arranged in a same layer.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: February 25, 2020
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventor: Peizhi Cai
  • Patent number: 10564467
    Abstract: A liquid crystal display device which may prevent a color mixing phenomenon and a driving method thereof, the liquid crystal display device including a first substrate and a second substrate facing each other; a thin film transistor disposed inside the first substrate; a color conversion layer disposed inside the second substrate and including a plurality of quantum rods; a liquid crystal layer disposed between the first substrate and the second substrate; a first polarizer disposed outside the first substrate; and a second polarizer disposed outside the second substrate.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: February 18, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Hyuk Kang, Hyun Min Cho, Jae Byung Park, Jae Woong Kang, Dae Hyun Kim, Suk Sun Lee, Joo Yeol Lee, Hyun Deok Im, Sung-Jin Hong
  • Patent number: 10558072
    Abstract: A display apparatus includes a display panel, a backlight unit which provides a light to the display panel, and a light control member disposed between the display panel and the backlight unit. The light control member includes a plurality of first barrier wall members extending in a first direction and arranged in a second direction crossing the first direction.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 11, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youra Kim, Donghoon Kim, Young-min Park
  • Patent number: 10551707
    Abstract: An array substrate is provided. The array substrate includes: a first substrate; and a color filter layer disposed on the first substrate, wherein the color filter layer comprises: a first color filter that is located on the first substrate and comprises a recess and a sub-protrusion; and a second color filter that is located on the first substrate to be adjacent to the first color filter along a first direction, and comprises a protrusion protruding toward the recess of the first color filter. The sub-protrusion of the first color filter protrudes toward the protrusion of the second color filter and is at least partially superimposed with the protrusion.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong Gun Chong, Nak Cho Choi, Je Hong Choi
  • Patent number: 10539844
    Abstract: Discussed are a liquid crystal display (LCD) device and a method of manufacturing the LCD device. The LCD device can include a plurality of pixel areas defined by intersections of a plurality of gate lines and a plurality of data lines, a gate disposed in each of the plurality of pixel areas, a gate insulator disposed to cover the gate, an active layer disposed on only the gate with the gate insulator therebetween, a thin film transistor (TFT) configured to include a source, which is disposed at a first side of the active layer, and a drain disposed at a second side of the active layer, a pixel electrode connected to the drain of the TFT and configured to supply a data voltage to a corresponding pixel area, a common electrode configured to supply a common voltage to the corresponding pixel area, and a lightly doped drain (LDD) disposed between the active layer and the source and between the active layer and the drain. At least a portion of the LDD can be disposed on the gate.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: January 21, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kum Mi Oh, In Sang Jung, Sung Hoon Kim
  • Patent number: 10534207
    Abstract: A fixture for display module inspection is disclosed. The fixture includes a base, a lower rotatable body pivotally mounted on the base, a middle rotatable body hinged with the lower rotatable body, an upper rotatable body hinged with the middle rotatable body and a carrier fixedly connected to the upper rotatable body for carrying a display module. A rotation axis of the lower rotatable body and a rotation axis of the middle rotatable body are arranged orthogonally to each other, the rotation axis of the middle rotatable body and a rotation axis of the upper rotatable body are arranged orthogonally to each other. Rotation position locking mechanisms are respectively provided between the lower rotatable body and the base, between the middle rotatable body and the lower rotatable body, and between the upper rotatable body and the middle rotatable body.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: January 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BOE (HEBEI) MOBILE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Ping Zhang, Zhen Wu
  • Patent number: 10529806
    Abstract: A carbon allotrope and a display device including the same are disclosed. The thin-film transistor array substrate, comprising a substrate, a gate electrode on the substrate, an active layer comprising a first active layer, which opposes the gate electrode and is adjacent to the gate electrode thereby comprising a semiconductor material and a plurality of carbon allotropes, and a second active layer, which is in contact with the first active layer and comprises a semiconductor material, a gate insulating film between the gate electrode and the active layer, and a source electrode and a drain electrode respectively in contact with the active layer.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: January 7, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Changeun Kim, Jeongeun Baek, Yonggyoon Jang, Sungjin Kim
  • Patent number: 10503022
    Abstract: A liquid crystal panel according to an embodiment of the present invention comprises: a liquid crystal layer containing liquid crystal molecules; a first alignment film in contact with a front surface of the liquid crystal layer; and a second alignment film in contact with a rear surface of the liquid crystal layer, the liquid crystal panel being curved in the shape of a cylindrical surface. The first alignment film includes a plurality of first strip portions extending along a first direction and causing the liquid crystal molecules to be aligned. The second alignment film includes a plurality of second strip portions extending along a second direction and causing the liquid crystal molecules to be aligned. The first direction is a peripheral direction of the cylindrical surface. The second direction is a direction which crosses the peripheral direction.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: December 10, 2019
    Assignee: Sakai Display Products Corporation
    Inventors: Yukio Yoshida, Masae Kitayama, Nobuo Okano, Mitsuaki Hirata
  • Patent number: 10481433
    Abstract: An optical/RF apparatus comprising a liquid crystal (LC) layer placed above or below a plasmon layer (e.g., a periodic array of graphene ribbons) to enable the tuning of the surface plasmons by varying the voltage applied to the LC to realize thereby devices such as tunable mid-IR, far-IR or THz modulators and filters.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 19, 2019
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Victor Yu Reshetnyak, Dean R. Evans
  • Patent number: 10475855
    Abstract: A display device (100) includes a spontaneous light emission-type display panel (10). The display device includes a plurality of pixels (P). The plurality of pixels each include a plurality of sub pixels including a red sub pixel (R), a green sub pixel (G) and a blue sub pixel (B). The display panel includes a red light emitting element (1r), a green light emitting element (1g), and a blue light emitting element (1b). Red light, green light and blue light respectively emitted by the red light emitting element, the green light emitting element and the blue light emitting element each have a spectrum half width of 10 nm or less. The plurality of sub pixels included in each pixel further include a yellow sub pixel (Ye). The display panel further includes a yellow light emitting element (1y) provided in an area corresponding to the yellow sub pixel. The yellow light emitting element emits yellow light having a dominant wavelength of 550 nm or greater and 600 nm or less.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: November 12, 2019
    Assignees: SHARP KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
    Inventors: Kazunari Tomizawa, Akiko Satoh, Yoshifumi Shimodaira, Gosuke Ohashi, Yusuke Amano