Patents Examined by Paul Lee
  • Patent number: 9927644
    Abstract: There is provided a high-definition liquid crystal display device that can prevent flicker due to a reduction in the pixel potential in a low-frequency drive of about 10 Hz to reduce power consumption. The pixel has a TFT formed of Poly-Si as a switching element. In the pixel, a capacitance insulating film is formed on a planar first electrode on which a comb-shaped second electrode is fanned. When the film thickness of the insulating film is d and the dielectric constant at 10 Hz frequency is ?, it is given that ?d?5×10?6 m at 10 Hz frequency. The capacitance insulating film does not have a hysteresis characteristic. The refractive index of the capacitance insulating film with respect to a light of a wavelength of 632.8 nm is 1.7 to 2.0.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: March 27, 2018
    Assignee: Japan Display Inc.
    Inventors: Toshiki Kaneko, Takashi Nakamura, Masahiro Tada, Yukio Tanaka, Hiroyuki Kimura, Osamu Itou
  • Patent number: 9927678
    Abstract: Embodiments of the present invention provide a variable optical attenuator. The variable optical attenuator includes: a collimator, a switchable polarization grating, a reflector, and a voltage controller for adjusting a voltage between electrodes at both ends of a liquid crystal layer of the switchable polarization grating, where the collimator, the switchable polarization grating, and the reflector are disposed successively; the collimator is configured to receive incident light and output the incident light to the switchable polarization grating; the switchable polarization grating is configured to diffract the incident light for one time and then perform emission onto the reflector; the switchable polarization grating is further configured to diffract, for one time, a beam reflected back by the reflector, and then emit resulting diffracted light; and the collimator is further configured to receive the diffracted light and output the diffracted light.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 27, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chongchang Mao, Minchun Li, Hong Min
  • Patent number: 9927655
    Abstract: The present invention provides a display panel, a method for fabricating the same and a display device. The display panel includes a first substrate and a second substrate which are assembled in an aligned manner. A first compensation film is provided on at least one side of the first substrate, a second compensation film is provided on at least one side of the second substrate, and the first compensation film and the second compensation film are used for compensating for phase delays of periphery areas of the first substrate and the second substrate, respectively, so that the phase delays of the periphery areas of the first substrate and the second substrate are the same as the phase delays of respective center areas thereof.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: March 27, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Jiaoming Lu
  • Patent number: 9910325
    Abstract: According to one embodiment, a display device comprises image signal lines, scanning signal lines, pixels, a display area, pixel electrodes, and common electrodes. The common electrodes are configured to detect an object and to display an image in the display area. The common electrodes include first and second common electrodes which are arranged in a first direction. A first slit is provided between the first and second common electrodes. The first and second common electrodes are supplied a signal different from each other. A second slit is provided in the first common electrode. Each of the first slit and the second slit overlaps one of the image signal lines and extends in an extension direction in which the image signal line extends.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: March 6, 2018
    Assignee: Japan Display Inc.
    Inventors: Kenta Seki, Gen Koide, Hayato Kurasawa
  • Patent number: 9910305
    Abstract: A method for manufacturing a liquid crystal display according to an exemplary embodiment of the present invention includes: forming a polymer thin film layer on a substrate; forming a thin film transistor (TFT) substrate on the polymer thin film layer; forming a thin film transistor array on the thin film transistor substrate; forming an upper polarizing plate on the thin film transistor substrate on which the thin film transistor array is formed; applying a laser to the polymer thin film layer to remove a portion of the polymer thin film layer and the substrate; attaching an adhesive layer onto a rear surface of the polymer thin film layer from which the substrate is separated; and attaching the polymer thin film layer onto which the adhesive layer is attached and a lower polarizing plate together.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: March 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung Hwan Kim, Myeong Hee Kim, Dae Ho Lee, Hee-Keun Lee
  • Patent number: 9903545
    Abstract: A visual and audio safety display beacon unit that mounts and dismounts from a landing pad body strap and utility tote is disclosed. It is a solar rechargeable multifunctional device that can be shared between individuals as well as domestic pets and surfaces.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: February 27, 2018
    Inventors: Jabutarik Benjamin Roberson, Marco Antonio Williams
  • Patent number: 9905587
    Abstract: The present invention provides an array substrate and a manufacturing method thereof, and a display panel comprising said array substrate. The array substrate comprises a plurality of pixel units, each of which comprising: a gate formed on a substrate; a gate insulating layer formed on the gate; an active layer being corresponding to the gate and formed on the gate insulating layer; a source and a drain formed on the active layer respectively; a pixel electrode formed on the gate insulating layer and electrically connected to the drain; a passivation layer covering the source, the drain and the pixel electrode; and a common electrode being corresponding to the pixel electrode and formed on the passivation layer, wherein an opening passing through the passivation layer is formed in the common electrode, so as to expose the pixel electrode below the passivation layer.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 27, 2018
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jinbo Ding, Bin Li, Jian Li, Jian Ren
  • Patent number: 9897841
    Abstract: A display device includes a substrate, a thin film transistor, a pixel electrode, a roof layer, a plurality of microcavities, a groove, liquid crystal molecules, and an encapsulation layer. The thin film transistor is disposed on the substrate. The pixel electrode is connected to the thin film transistor. The roof layer is disposed on the pixel electrode so as to be spaced apart from the pixel electrode while interposing the plurality of microcavities. The groove is formed in a first surface of the roof layer. The liquid crystal molecules are disposed in the microcavities. The encapsulation layer is disposed on the roof layer and seals the liquid crystal molecules in the microcavities.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu Jin Kim, Won Tae Kim, Kyung Tae Chae
  • Patent number: 9897862
    Abstract: Embodiments of the disclosure disclose a spacer, a liquid crystal panel comprising the spacer, and a display device. The spacer comprises a first portion made of a rigid material and a second portion made of a flexible material; and the first portion and the second portion are fixedly connected with each other.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: February 20, 2018
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yu Zhang
  • Patent number: 9897836
    Abstract: A display device includes: a display panel; a bottom chassis accommodating the display panel and including a bottom member, a support bent from the bottom member, and a hemming unit overlapping the support; and a mold frame coupled to the bottom chassis and including a projection. The bottom chassis may have a coupling hole into which the projection is inserted and have a bent member extending from a side of the coupling hole.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: February 20, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventor: Taechang Kim
  • Patent number: 9897864
    Abstract: The present invention provides a curved display panel, comprising a color filter substrate, an array substrate and a plurality of spacers, and the color filter substrate and the array substrate are curved, and the plurality of spacers is positioned between the color filter substrate and the array substrate, and an edge of one of the color filter substrate and the array substrate comprises recesses at positions corresponding to the spacers, a center of one of the color filter substrate and the array substrate comprises bulges at positions corresponding to the spacers. By the method in which the recesses are positioned at the edge and the bulges are positioned at the center, the cell gaps at respective positions in the curved display panel are the same.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: February 20, 2018
    Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd, Wuhan China Star Optoelectronics Technology Co., Ltd
    Inventor: Chang Xie
  • Patent number: 9885903
    Abstract: A display device comprising a Spatial Light Modulator assembly including active display elements for displaying an image, a patterned color layer including at least one color pixel array, a reflector for reflecting ambient incident light, and a light absorbing layer, wherein the color pixel array comprises a first pixel group including at least three contiguously arranged pixels capable of transmitting a first color, and a second pixel group including at least three contiguously arranged pixels capable of transmitting a second color.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: February 6, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew J. Ouderkirk, Kelly Reed Ingham
  • Patent number: 9874781
    Abstract: According to one embodiment, a liquid crystal display device includes an array substrate, a counter-substrate, a negative liquid crystal layer including liquid crystal molecules, a retardation film attached to a surface of the array substrate, a first polarizer attached to the retardation film and having a first absorption axis, a second polarizer attached to a surface of the counter-substrate, and having a second absorption axis which is parallel to a direction of initial alignment of the liquid crystal molecules and perpendicular to the first absorption axis, a cover member located opposite to the second polarizer, and ultraviolet curing resin which bonds the second polarizer and the cover member to each other.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: January 23, 2018
    Assignee: Japan Display Inc.
    Inventor: Keiji Tago
  • Patent number: 9869906
    Abstract: A liquid crystal display device includes pixels, each including a pixel electrode including first and second stem electrodes, which extend in a first direction and are spaced apart from each other, a third stem electrode, which extends in a second direction perpendicular to the first direction and intersects the first and second stem electrodes, a first edge electrode, which extends in the second direction and intersects first ends of the first and second stem electrodes, a second edge electrode, which extends in the second direction and intersects second ends of the first and second stem electrodes, and branch electrodes, which extend from the first, second, and third stem electrodes in a direction which is different from the first and second directions where a boundary line is defined between the first and second stem electrode.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: January 16, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Heung Shik Park, Sang Gyun Kim, Ki Chul Shin, Jae Jin Lyu
  • Patent number: 9851599
    Abstract: A color Liquid Crystal Display (LCD) device for displaying a color image using at least four different primary colors, the device including an array of Liquid Crystal (LC) elements, driving circuitry adapted to receive an input corresponding to the color image and to selectively activate the LC elements of the LC array to produce an attenuation pattern corresponding to a gray-level representation of the color image, and an array of color sub-pixel filter elements juxtaposed and in registry with the array of LC elements such that each color sub-pixel filter element is in registry with one of the LC elements, wherein the array of color sub-pixel filter elements comprises at least four types of color sub-pixel filter elements, which transmit light of the at least four primary colors, respectively.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: December 26, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ilan Ben-David, Shmuel Roth, Moshe Ben-Chorin
  • Patent number: 9851820
    Abstract: Provided is a novel display panel that is highly convenient or reliable, a novel data processor that is highly convenient or reliable, or a method for manufacturing a novel display panel that is highly convenient or reliable. The display panel includes a pixel and a terminal electrically connected to the pixel. The pixel includes a first insulating film, a first contact portion in a first opening provided in the first insulating film, a pixel circuit electrically connected to the first contact portion, a second contact portion electrically connected to the pixel circuit, a first display element electrically connected to the first contact portion, and a second display element electrically connected to the second contact portion. The first insulating film includes a region lying between the first display element and the second display element. The terminal includes a surface at which contact with other component can be made.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: December 26, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Koji Kusunoki, Yoshiharu Hirakata
  • Patent number: 9835891
    Abstract: The present invention proposes an LCD panel and a method for forming the same. The LCD panel includes an isolator disposed between two adjacent liquid crystal units. Liquid crystal molecules of red liquid crystal units and green liquid crystal units are mixed with quantum rods (QRs) of corresponding colors. The red liquid crystal units correspond to a position of the red pixels, the green liquid crystal units correspond to a position of the green pixels. The QRs and liquid crystal molecules have long axes and directions of the long axes of QRs and liquid crystal molecules are the same.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: December 5, 2017
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Guohe Liu
  • Patent number: 9835903
    Abstract: A backlight unit that includes a light source driving substrate and first and second light source units connected to the light source driving substrate. The first light source unit includes first and second light sources respectively emitting a first light having a first color and a second light having a second color. The second light source unit may include third and fourth light sources respectively emitting a third light having the first color and a fourth light having the second color. The first light source unit emits a first white color light having a first white color coordinate by mixing the first light and the second light and the second light source unit emits a second white color light having a second white color coordinate by mixing the third light and the fourth light. The first and second white color coordinates belong to different white color coordinate areas.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: December 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eui Jeong Kang, Youra Kim, Hyun-Jeong Kim
  • Patent number: 9833983
    Abstract: A polarizing plate includes a first glass plate; a second glass plate facing the first glass plate; and a polarizing device between the first and second glass plates. An external surface of at least one of the first and second glass plates, which is not in contact with the polarizing device, has a root mean square surface roughness of about 1 nanometer or less.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: December 5, 2017
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Jong Seong Kim, Sang Il Kim
  • Patent number: 9837442
    Abstract: An object is to improve reliability of a semiconductor device. A semiconductor device including a driver circuit portion and a display portion (also referred to as a pixel portion) over the same substrate is provided. The driver circuit portion and the display portion include thin film transistors in which a semiconductor layer includes an oxide semiconductor; a first wiring; and a second wiring. The thin film transistors each include a source electrode layer and a drain electrode layer. In the thin film transistor in the driver circuit portion, the semiconductor layer is sandwiched between a gate electrode layer and a conductive layer. The first wiring and the second wiring are electrically connected to each other in an opening provided in a gate insulating film through an oxide conductive layer.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: December 5, 2017
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama, Masashi Tsubuku