Patents Examined by Thanh-Nhan P Nguyen
  • Patent number: 10451920
    Abstract: A display device and a method of manufacturing the same are provided. A display device includes: a light guide plate on a rear surface of a display panel, the light guide plate being configured to direct light toward the display panel, a reflector on a rear surface of the light guide plate, the reflector being configured to reflect light from a rear of the light guide plate toward a front surface of the light guide plate, a back cover on a rear surface of the reflector, and a light-emitting diode array coupled to an edge of the back cover, the light-emitting diode array including: a printed circuit board, and a plurality of light-emitting diodes at a side surface of an edge of the light guide plate, the plurality of light-emitting diodes being configured to generate light, the plurality of light emitting diodes being attached to the printed circuit board.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: October 22, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: EuiJung Kim, Jaejun Kim, GilYoung Lim, Taebok Min, HyunCheol Cho
  • Patent number: 10444570
    Abstract: A transfer printing plate is disclosed. The transfer printing plate is configured for transferring an alignment liquid to a mainboard of a display panel and may include: a base plate; a transfer printing portion formed on the base plate and comprising at least two strip-shaped protrusions arranged side by side and spaced apart by a predetermined distance; and a supporting and connecting portion formed between two adjacent strip-shaped protrusions of the at least two strip-shaped protrusions and connected to the two adjacent strip-shaped protrusions. A transfer printing device having the transfer printing plate is also disclosed.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: October 15, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Jie Tong, Peimao Li, Xuelu Wang, Huilian Wang
  • Patent number: 10408989
    Abstract: An optical film for improving contrast ratio, a polarizing plate including the same, and a liquid crystal display including the same are disclosed. The optical film for improving contrast ratio includes: a base layer and a contrast ratio improvement layer formed on the base layer, wherein the contrast ratio improvement layer includes a high refractive index resin layer including a patterned portion composed of one or more engraved patterns and a flat portion formed between the engraved patterns and a low refractive index resin layer directly formed on the patterned portion, the engraved patterns have a base angle of 75° to about 90°, and the patterned portion has a P/W value of greater than about 1 to about 10 or less (P is the cycle of the patterned portion (unit: ?m) and W is the maximum width of the engraved pattern (unit: ?m)).
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: September 10, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong Ho Lee, Young Oh, Seong Hoon Lee, Young Hyun Ju
  • Patent number: 10409097
    Abstract: A display device includes a display module including a display surface, a light transmissive panel, a first fixing layer, a case, a second fixing layer, a first area, a second area, and a third area. The light transmissive panel includes a fixing plate surface opposed to the display surface. The first fixing layer is disposed between the fixing plate surface and the display surface. The case includes a fixing-plate-surface opposed surface opposed to the fixing plate surface. The second fixing layer is disposed between the fixing plate surface and the fixing-plate-surface opposed surface. The fixing plate surface includes the first area, the second area, and the third area located between the first area and the second area. The first area overlaps the first fixing layer. The second area overlaps the second fixing layer. The third area has wettability less than wettability of the first area and the second area.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: September 10, 2019
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Shinya Morino
  • Patent number: 10404958
    Abstract: A projection display unit includes: an illumination optical system including one or more light sources; a reflective liquid crystal device that generates image light by modulating light from the illumination optical system, based on an input image signal; a polarizing beam splitter disposed on an optical path between the illumination optical system and the reflective liquid crystal device; a polarization compensation device disposed on an optical path between the polarizing beam splitter and the reflective liquid crystal device, and the polarization compensation device that provides a phase difference to light incident thereon to change a polarization state of the light; and a projection optical system that projects image light generated by the reflective liquid crystal device and then being incident thereon through an optical path, the optical path passing through the polarization compensation device and the polarizing beam splitter.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: September 3, 2019
    Assignee: Sony Corporation
    Inventor: Koji Miura
  • Patent number: 10379495
    Abstract: A holographic weapon sight has a housing with a viewing end and an opposing target end, a viewing path being defined from the viewing end to the target end. A light source energized by a power source projects a light beam along a path onto a liquid crystal cell module. A power controller in communication with the power source is operable to adjust the brightness of the light beam from the light source. The liquid crystal cell module is operable to rotate and polarize the light beam to further adjust the brightness of the light beam. The light beam from the liquid crystal cell module illuminates a holographic optical element (HOE) that reconstructs an image of a reticle.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: August 13, 2019
    Assignee: Ziel Optics, Inc.
    Inventor: Fred Collin
  • Patent number: 10379412
    Abstract: A liquid crystal display device comprises: a first display panel and a second display panel, which are overlapping each other; and a backlight disposed on rear surface sides of the first display panel and the second display panel. The backlight irradiates the first display panel and the second display panel with light beams in a plurality of colors while sequentially switching the light beams. Each of the first display panel and the second display panel includes a plurality of pixels. An area of the pixel included in the first display panel is smaller than an area of the pixel included in the second display panel.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: August 13, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Kikuo Ono
  • Patent number: 10365517
    Abstract: A display device may include the following elements: a first color filter, which has a first color; a first pixel electrode, which overlaps the first color filter and includes a first stem electrode and a first branch electrode, wherein the first branch electrode is oriented at an acute angle with respect to the first stem electrode; a second color filter, which has a second color different from the first color; and a second pixel electrode, which overlaps the second color filter, immediately neighbors the first pixel electrode, and includes a second stem electrode and a second branch electrode, wherein the second stem electrode is aligned with the first stem electrode, and wherein a shape of a combination of the second stem electrode and the second branch electrode is a mirror image of a shape of a combination of the first stem electrode and the first branch electrode.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: July 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong-Keun Kim, Jeong Man Son, Jin Young Lee
  • Patent number: 10359673
    Abstract: An LCD panel and LCD device are disclosed. The LCD panel includes a first substrate and a second substrate, located opposite to each other, and a liquid crystal (LC) layer sandwiched between the first and the second substrates. The LCD panel has an active area having a plurality of sub-pixel areas arranged in an array, and shielding areas between two adjacent sub-pixel areas. A side of the first substrate adjacent to the LC layer includes a first electrode layer, the first electrode layer corresponding to the sub-pixel areas and shielding areas; and a side of the second substrate adjacent to the LC layer includes mutually independent second and third electrode layers; the second electrode layer corresponding to the sub-pixel areas and the third electrode layer corresponding to the shielding areas. The third electrode layer includes vias.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: July 23, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Shuai Chen
  • Patent number: 10359658
    Abstract: An electro-optical devices includes: a first substrate; a second substrate having one surface opposite to the first substrate; a support member configured to hold the first and second substrates with the second substrate located outside the first substrate, and to include a frame portion surrounding the first and second substrates; a first conductive film formed on the other surface of the second substrate; and a conductor layer placed between the frame portion and the first and second substrates, and electrically connected to the first conductive film. The first conductive film is held at a constant potential via the conductor layer.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 23, 2019
    Assignee: Japan Display Inc.
    Inventor: Yasunori Onishi
  • Patent number: 10330975
    Abstract: The present application discloses a reflective display panel, a driving method thereof, a control method of a pixel unit and a reflective display device. The reflective display panel comprises: a base substrate, a reflective layer, first and second electrode layers, wherein the first electrode layer is on a side of the reflective layer distal to the base substrate, the second electrode layer is on a side of the first electrode layer distal to the base substrate and insulated from the first electrode layer, materials of the first and second electrode layers are each an electro-optic material, and orthogonal projections of the second and first electrode layers on the base substrate have overlapping areas corresponding to the pixel units.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 25, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhihe Jin, Seungwoo Han, Mingfu Han, Xing Yao, Guangliang Shang, Zhichong Wang, Lijun Yuan, Haoliang Zheng, Yunsik Im
  • Patent number: 10331000
    Abstract: A liquid crystal display including a semiconductor layer disposed on a substrate, a transparent electrode disposed n the semiconductor layer, the transparent electrode overlapping the semiconductor layer and including a source electrode, a drain electrode facing the source electrode, and a first electrode extending from the drain electrode, and an insulating layer disposed on the transparent electrode. The semiconductor layer contacts an entire surface of the source electrode, the drain electrode, and the first electrode.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: June 25, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Duk-Sung Kim, Jae-Jong Lim
  • Patent number: 10324332
    Abstract: Embodiments of the present disclosure relates to a display panel includes a first substrate and a second substrate facing the first substrate; a first polarizer provided on the first substrate; and a second polarizer provide on the second substrate, wherein the display panel includes a plurality of pixels, the first polarizer and the second polarizer have a plurality of light transmission axes, a direction of the light transmission axis of the first polarizer or the second polarizer corresponding to one pixel is different from that of the first polarizer or the second polarizer corresponding to a pixel adjacent to said one pixel, and the direction of the light transmission axis of the first polarizer and the direction of the light transmission axis of the second polarizer corresponding a same pixel are perpendicular to each other.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: June 18, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Yingtao Wang
  • Patent number: 10317722
    Abstract: A pixel section which is a display region, and a frame section which is a non-display region surrounding a periphery of the pixel section are defined in a display device. The display device comprises a first display panel including: a first substrate; a second substrate disposed opposite to the first substrate and including a light shielding layer; and a plurality of spacers formed between these two substrate. The second substrate includes a first frame area constituting a portion disposed in the frame section. The first frame area includes a light shielding forming region and a light shielding non-forming region. A spacer disposed in the frame section among the plurality of spacers is formed on the light shielding forming region in the first frame area. The light shielding non-forming region is disposed around the spacer disposed on the light shielding forming region.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 11, 2019
    Assignee: Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Tetsuo Fukami
  • Patent number: 10317741
    Abstract: A liquid crystal display device includes: a substrate having a pixel including first and second areas; a thin film transistor on the substrate in the pixel; a first pixel electrode in the first area and connected to the thin film transistor; a first common electrode in the first area and spaced apart from the first pixel electrode by a first separation distance; a second pixel electrode in the second area and connected to the first pixel electrode; a second common electrode in the second area and spaced apart from the second pixel electrode by a second separation distance different from the first separation distance; and a liquid crystal layer on the first pixel electrode, the first common electrode, the second pixel electrode and the second common electrode.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: June 11, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Wook Lee, Jung-Im Hwang, Min-Geun Choi, Ji-Na Jeon
  • Patent number: 10310343
    Abstract: Disclosed is a display panel in which a black matrix is formed on an upper substrate, which is disposed so as to face a lower substrate, so as to delimit each pixel area, a plurality of light control partitions is provided in the pixel area of the upper substrate, a color filter is provided in the pixel area of the upper substrate, and an overcoat layer is provided over the entire surface of the upper substrate. The light control partitions are formed in the pixel area simultaneously with the formation of the black matrix, which enables the omission of an existing light control film. Thereby, a narrow viewing angle is realized without increasing the thickness or manufacturing cost of a product.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 4, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hoon-Sub Shin, Mi-Kyung Lee, Ji-Yun Jang, Jun-Sung Kong, Yong-Hee Han, Eun-Young Yun
  • Patent number: 10310342
    Abstract: A display device includes: a first substrate including a display area and a non-display area; a gate line in the display area and a gate pad in the non-display area, the gate line extending in a first direction; a data line in the display area, the data line extending in a second direction intersecting the first direction; a thin film transistor at an intersection point among the gate line and the data line; a step-difference pattern on the gate pad; and a protective layer including a first protective layer on the thin film transistor and a second protective layer on the step-difference pattern and the gate pad. The second protective layer has a height less than a height of the first protective layer.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: June 4, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sungjin Mun, Namwook Lee, Kihun Jeong, Xinxing Li, Hyeongjun Jin
  • Patent number: 10310365
    Abstract: An illumination unit includes: a light source section including a laser light source; an optical-path branching device outputting light incident from the light source section, by branching the light into an outgoing optical path of illumination light and other optical path; a photodetector receiving a light flux that travels on the other optical path; a control section controlling an emitted light quantity in the laser light source, based on a quantity of the light flux received by the photodetector; and a light-quantity-distribution control device disposed between the optical-path branching device and the photodetector on the other optical path, the light-quantity-distribution control device controlling a light quantity distribution in the light flux to be incident upon the photodetector.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 4, 2019
    Assignee: SONY CORPORATION
    Inventor: Kazumasa Kaneda
  • Patent number: 10268080
    Abstract: A phase modulator for polarized light, comprising a first substrate with a first surface and a second substrate with a second surface, a liquid crystal layer between the two substrates and an electrode arrangement. The phase modulator is usable as a variable deflection grating, and liquid crystal materials which are currently conventional are usable for its production. A phase modulator has an out-of-plane angle of the liquid crystal molecules next to the two surfaces whose magnitude is greater than 0 but less than or equal to 45 degrees, and an electrode arrangement controllable such that an in-plane component of the liquid crystal molecule orientation is adjustable in an angle range of up to 180 degrees, and the rotation sense of the liquid crystal molecules next to the first surface is opposite to the rotation sense of the liquid crystal molecules next to the second surface.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: April 23, 2019
    Assignee: SEEREAL TECHNOLOGIES S.A.
    Inventor: Norbert Leister
  • Patent number: 10261231
    Abstract: A display apparatus including a round portion is provided. The display apparatus includes: a display panel; a light guide plate configured to guide light toward the display panel, the light guide plate comprising a flat portion and a round portion; and a printed circuit board (PCB) including a first area configured to radiate light toward the round portion, and a second area configured to radiate light toward the flat portion, wherein a width of the first area is less than a width of the second area.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: April 16, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jun-Mo Yoo