Patents Examined by Phuc T. Dang
  • Patent number: 11417722
    Abstract: The display device includes a substrate, a first wiring provided on the substrate, an insulating layer having a first contact hole, and provided on the first wiring, a plurality of pixels arranged in a display region on the first insulating layer, each of the plurality of pixels having a transistor and a light emitting element, a common electrode provided in common to the plurality of light emitting elements and electrically connected to the first wiring via the first contact hole in a peripheral region surrounding the display region.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Japan Display Inc.
    Inventor: Masakazu Gunji
  • Patent number: 11411197
    Abstract: A display device includes a substrate including display and non-display areas, a driving element in the display area, a first via layer on the driving element and in the non-display area, a second via layer on the first via layer, a pixel electrode on the second via layer and overlapping the display area, an auxiliary electrode on the second via layer and overlapping the non-display area, a pixel defining layer on the second via layer and overlapping the pixel electrode, organic layer patterns on the second via layer and overlapping the auxiliary electrode, a light emitting layer on the pixel electrode, and a common electrode on the light emitting layer and the auxiliary electrode and electrically connected to the auxiliary electrode. The auxiliary electrode includes electrode holes, and an organic layer pattern includes a pattern hole overlapping an electrode hole.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Ho Moon, Chun Gi You, Tae Jong Eom
  • Patent number: 11411065
    Abstract: A display device includes a first pixel including a first transistor, a second transistor, and a third transistor, a second pixel disposed adjacent to the first pixel in a first direction, and including a first transistor, a second transistor, and a third transistor, and an initialization voltage line disposed between the first pixel and the second pixel, and extending in a second direction crossing the first direction. The second transistor of the first pixel and the second transistor of the second pixel are connected to the initialization voltage line. The first, second, and third transistors of the first pixel and the first, second, and third transistors of the second pixel are symmetrical with respect to the initialization voltage line.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 9, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Moon Jo, Young Wan Seo, Chong Chul Chai
  • Patent number: 11404489
    Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes: a driver circuit layer, a planarization layer and light-emitting units, each light-emitting unit includes an anode, a cathode and an organic light emitting layer located between the anode and the cathode, and the anode is connected to a driving electrode of the driver circuit layer through a via hole in the planarization layer. The organic light emitting layer includes: at least one pixel repetition unit, each pixel repetition unit includes multiple pixels, and each pixel includes multiple sub-pixels with different colors. Via holes in the planarization layer that correspond to same colored sub-pixels of at least two pixels in the same pixel repetition unit have different via hole positions, the via hole position being a relative position of a projection of a via hole in the planarization layer within corresponding sub-pixel.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhao Li, Hong Zhu
  • Patent number: 11404514
    Abstract: A display device, including an irregularly-shaped display area disposed with a plurality of irregularly-shaped display pixels and at least one attachment device; and a pixel display area disposed adjacent to the irregularly-shaped display area; wherein each of the irregularly-shaped display pixels comprises an irregularly-shaped gate disposed below a driving thin-film transistor, and the irregularly-shaped gate changes a light-emitting brightness of the irregularly-shaped display pixel according to an adjustment voltage signal to balance light-emission uniformity of the irregularly-shaped display area and the pixel display area.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: August 2, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPAY TECHNOLOGY CO., LTD.
    Inventors: Chao Li, Yonghui Zhang
  • Patent number: 11404508
    Abstract: A display device and a method of manufacturing a display device are provided. A display device includes a first conductive layer on a first gate insulating film and including a first gate electrode and a first electrode of a capacitor connected to the first gate electrode, and a second conductive layer on the second interlayer insulating film and including a first and a second source/drain electrode, and a second electrode of the capacitor, the second electrode of the capacitor is in a trench structure in which the second interlayer insulating film is partially removed.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myeong Ho Kim, Jay Bum Kim, Kyoung Seok Son, Seung Jun Lee, Seung Hun Lee, Jun Hyung Lim
  • Patent number: 11404522
    Abstract: A display device including: a panel including pixels, a pixel including: an LED; a capacitor between a first voltage line and a node; a first transistor between the first voltage line and a first electrode of the LED; a second transistor between a data line and a source of the first transistor; a third transistor between the node and a drain of the first transistor; a fourth transistor between the node and a second voltage line; a fifth transistor between the first voltage line and the source of the first transistor; a sixth transistor between the first electrode and the drain of the first transistor; and a seventh transistor between the second voltage line and the first electrode, the third and fourth transistor including: an active area including metal oxide; first and second gates above the active area; and a pattern below the active area.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suyeon Yun, Sunghoon Kim, Anna Ryu
  • Patent number: 11404521
    Abstract: A display apparatus includes a first substrate including a display area and a peripheral area on a side of the display area, a second substrate facing the first substrate, a fan-out portion arranged in the peripheral area and including a plurality of wires, a power supply line arranged over the fan-out portion and in the peripheral area, an insulating layer arranged between the plurality of wires and the power supply line, and a sealing portion arranged in the peripheral area. The sealing portion surrounds a periphery of the display area and attaches the first substrate and the second substrate to each other. The peripheral area includes an overlapping area in which the fan-out portion, the power supply line, and the sealing portion overlap one another. The power supply line arranged in the overlapping area includes a first conductive layer and a second conductive layer arranged on the first conductive layer.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangho Moon, Taejong Eom, Chungi You
  • Patent number: 11387310
    Abstract: An array substrate and a display panel are disclosed. The array substrate includes: a base substrate including a display region and a peripheral region; a plurality of sub-pixels in the display region; a plurality of data lines in the display region; a plurality of first power lines in the display region; a plurality of data lead lines in the peripheral region; a plurality of selection switches in the peripheral region; a plurality of data signal input lines in the peripheral region; a first power bus in the peripheral region; and a plurality of connection portions electrically connecting the first power bus to the plurality of first power lines, respectively. The plurality of connection portions include a plurality of first connection portions and a plurality of second connection portions on both sides of the plurality of first connection portions.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: July 12, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Huijuan Yang, Tingliang Liu, Gen Li, Yang Zhou
  • Patent number: 11387311
    Abstract: A display device having an improved reliability includes a substrate including a display area in which a display element is arranged, a first conductive layer extending in a first direction on a plane, located in the display area, and including a protrusion protruding in a second direction crossing the first direction, a first insulating layer on the first conductive layer, a second conductive layer extending in the first direction on a plane, located on the first insulating layer, and defining a groove overlapping the protrusion of the first conductive layer, a second insulating layer on the second conductive layer, and a third conductive layer extending in the second direction on a plane, located on the second insulating layer, and overlapping the protrusion of the first conductive layer.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: July 12, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwayoung Song, Jihyun Ka, Jongseok Woo, Wonse Lee
  • Patent number: 11387424
    Abstract: An organic light emitting diode display device includes a substrate, a first defined area disposed on the substrate, a second defined area including a metal layer disposed on the substrate, a bank layer disposed on the substrate, an electron transport layer disposed above the first defined area and the second defined area, and a cathode layer disposed on the electron transport layer. The first defined area includes an anode layer, a hole injection layer, a hole transport layer, and an organic light emitting layer disposed on the substrate in sequentially. The bank layer is disposed at an edge of the first defined area and in the second defined area, and electrically isolates the first defined area and the second defined area. The electron transport layer includes a cathode contact hole used as an auxiliary cathode, which solves uneven light emission of a large-sized panel and improves display effect.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 12, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifei Bing
  • Patent number: 11387263
    Abstract: An object of the present invention is to decrease substantial resistance of art electrode such as a transparent electrode or a wiring, and furthermore, to provide a display device for which is possible to apply same voltage to light-emitting elements. In the invention, a auxiliary wiring that is formed in one layer in which a conductive, film of a semiconductor element such as an electrode, wiring, a signal line, a scanning line, or a power supply line is connected to an electrode typified by a second electrode, and a wiring. It is preferable that the auxiliary wiring is formed into a conductive film to include low resistive material, especially, formed to include lower resistive, material than the resistance of an electrode and a wiring that is required to reduce the resistance.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 12, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Noriko Miyagi, Masayuki Sakakura, Tatsuya Arao, Ritsuko Nagao, Yoshifumi Tanada
  • Patent number: 11387307
    Abstract: A display device includes a display panel including a main area and a sensor area. Sensor devices overlap the sensor area of the display panel in a thickness direction of the display panel. The display panel includes first subpixels, which are disposed in the sensor area, and second subpixels, which are disposed in the main area. The number of transistors of each of the first subpixels is different from the number of transistors of each of the second subpixels.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: July 12, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Chan Lee, Gun Hee Kim, Sung Jin Hong, Yoo Min Ko
  • Patent number: 11380742
    Abstract: A display panel includes a light emitting layer, and the light emitting layer includes a pixel defining layer, a plurality of light emitting structures, and a plurality of supporting structures located on the pixel defining layer. Each of the supporting structures includes a first support column and a second support column, the first support column is a hollow cylinder, the second support column is located inside the first support column, a height of the second support column is greater than a height of the first support column, and a shortest distance between the first support column and the second support column is greater than or equal to a radius or a side length of the second support column.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: July 5, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Jing Ni
  • Patent number: 11374197
    Abstract: An organic light emitting diode (OLED) panel includes a thin film transistor (TFT) array substrate, a plurality of OLED devices, and a plurality of isolator assemblies. The TFT array substrate includes a plurality of pixel regions, and the OLED devices disposed on locations corresponding to the pixel regions respectively. The OLED devices include an OLED layer. The isolator assemblies are configured to block the OLED layer of a white light-emitting device from extending to the OLED devices adjacent to the white light-emitting device. By arranging the isolator assemblies around the white light-emitting device, light generated by the white light-emitting device is prevented from leaking.
    Type: Grant
    Filed: May 5, 2019
    Date of Patent: June 28, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD
    Inventor: Weijing Zeng
  • Patent number: 11374098
    Abstract: A semiconductor device and a process of forming the semiconductor device are disclosed. The semiconductor device type of a high electron mobility transistor (HEMT) has double SiN films on a semiconductor layer, where the first SiN film is formed by the lower pressure chemical vapor deposition (LPCVD) technique, while, the second SiN film is deposited by the plasma assisted CVD (p-CVD) technique. Moreover, the gate electrode has an arrangement of double metals, one of which contains nickel (Ni) as a Schottky metal, while the other is free from Ni and covers the former metal. A feature of the invention is that the first metal is in contact with the semiconductor layer but apart from the second SiN film.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 28, 2022
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC DEVICE INNOVATIONS, INC.
    Inventors: Kenta Sugawara, Yukinori Nose
  • Patent number: 11374078
    Abstract: An array substrate, a display panel and a display device are provided. The array substrate includes a plurality of pixel groups arranged as a matrix. The plurality of pixel groups include a plurality of first pixel groups, a plurality of second pixel groups and a plurality of third pixel groups. In odd number rows of pixel groups and odd number columns of pixel groups, the first pixel groups and the second pixel groups are alternately arranged. In even number rows of pixel groups and even number columns of pixel groups, the second pixel groups and the third pixel groups are alternately arranged. Each first pixel group includes two first sub-pixels arranged along a first direction. Each second pixel group includes two second sub-pixels arranged along a second direction; and each third pixel group includes two third sub-pixel groups arranged along the first direction.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 28, 2022
    Assignees: Wuhan Tianma Micro-Electronics Co., Ltd., Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
    Inventor: Yu Xin
  • Patent number: 11367852
    Abstract: The manufacturing method provided by this application comprises: providing a substrate on which a plurality of pixel defining layers are arranged at intervals; disposing a hole injection layer on the substrate; disposing a hole transport layer on the hole injection layer; disposing an organic light emitting layer on the hole transport layer; disposing an electron transport layer on the organic light emitting layer and the pixel defining layers; and disposing a cathode metal layer on the electron transport layer, wherein the cathode metal layer comprises a first area located above the pixel defining layers; and processing the cathode metal layer in the first area.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: June 21, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhonghui Du
  • Patent number: 11367772
    Abstract: A display device of the present disclosure includes an organic EL layer formed on a circuit portion, which is formed on a substrate, with an insulating film interposed therebetween, a cathode electrode formed on the organic EL layer in common to all pixels, and a metal wiring provided on an outer peripheral portion of an effective pixel region and electrically connecting the cathode electrode to a wiring of the circuit portion. Then, the metal wiring has a recess or a projection on a contact surface in a connection portion with the cathode electrode. Furthermore, an electronic device according to the present disclosure has the display device having the above configuration.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: June 21, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Kouichi Nakamura
  • Patent number: 11362166
    Abstract: A display device includes a substrate including a pixel region and a peripheral region. A plurality of pixels is disposed in the pixel region of the substrate. Each of the plurality of pixels includes a light emitting element. Data lines and scan lines are connected to each of the plurality of pixels. A power line is configured to supply power to the plurality of pixels. The power line includes a plurality of first conductive lines and a plurality of second conductive lines intersecting the plurality of first conductive lines. The plurality of second conductive lines is arranged in a region between adjacent light emitting elements of the plurality of pixels. At least some of the plurality of second conductive lines extend in a direction oblique to a direction of extension of the data lines or the scan lines.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 14, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yang Wan Kim, Byung Sun Kim, Jae Yong Lee, Chung Yi, Hyung Jun Park, Su Jin Lee