Patents Examined by Xia L Cross
  • Patent number: 11456343
    Abstract: Embodiments of the disclosure relate to an organic light emitting display panel and organic light emitting display device including the same, and more specifically, to an organic light emitting display panel and organic light emitting display device which includes an insulation film including at least one concave portion including a flat portion and an inclined portion surrounding the flat portion in at least one subpixel of the active area and a first electrode of an organic light emitting diode disposed on a portion of the concave portion and a surrounding portion disposed around the concave portion in the at least one subpixel area and including at least one protrusion on a surface thereof, thereby enhancing light extraction efficiency.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: September 27, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SeokWoo Son, JungSun Baek, Joyeon Kim
  • Patent number: 11456345
    Abstract: Sub-pixel circuits and methods of forming sub-pixel circuits that may be utilized in an organic light-emitting diode (OLED) display are described herein. The overhang structures are permanent to the sub-pixel circuit. The overhang structures include a conductive oxide. A first configuration of the overhang structures includes a base portion and a top portion with the top portion disposed on the base portion. In a first sub-configuration, the base portion includes the conductive oxide of at least one of a TCO material or a TMO material. In a second sub-configuration, the base portion includes a metal alloy material and the conductive oxide of a metal oxide surface. A second configuration of the overhang structures includes the base portion and the top portion with a body portion disposed between the base portion and the top portion. The body portion includes the metal alloy body and the metal oxide surface.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: September 27, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Ji-young Choung, Chung-Chia Chen, Yu Hsin Lin, Jungmin Lee, Dieter Haas, Si Kyoung Kim
  • Patent number: 11437596
    Abstract: To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: September 6, 2022
    Assignees: AGC Inc., National University Corporation Yamagata University
    Inventors: Shigeki Hattori, Takefumi Abe, Kaori Tsuruoka, Yasuhiro Kuwana, Daisuke Yokoyama
  • Patent number: 11437449
    Abstract: A display panel includes: a substrate comprising a main display area and an auxiliary display area comprising a first pixel area, a second pixel area, and a transmission area; a first pixel in the first pixel area and comprising a first pixel electrode, a first opposite electrode, and a first intermediate layer between the first pixel electrode and the first opposite electrode; a second pixel in the second pixel area and comprising a second pixel electrode, a second opposite electrode, and a second intermediate layer between the second pixel electrode and the second opposite electrode; a pixel-defining layer on the first pixel electrode and the second pixel electrode and having a first opening and a second opening through which centers of the first pixel electrode and the second pixel electrode are respectively exposed; and a first barrier wall on the pixel-defining layer.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: September 6, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joohee Jeon, Yoomin Ko, Sanghoon Kim, Seungchan Lee
  • Patent number: 11430929
    Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, and a first p-type semiconductor layer, a second light emitting part disposed on a first surface of the first light emitting part, and including a second n-type semiconductor layer, a second active layer, and a second p-type semiconductor layer, the second n-type semiconductor layer having a first surface and a second surface opposing the first surface, a third light emitting part disposed on a first surface of the second light emitting part, and including a third n-type semiconductor layer, a third active layer, and a third p-type semiconductor layer, a first contact structure contacting the first surface of the second n-type semiconductor layer, and a second contact structure contacting the second surface of the second n-type semiconductor layer.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: August 30, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Patent number: 11430841
    Abstract: The present disclosure provides an array substrate and a display device. The array substrate comprises a plurality of pixel units arranged in an array, each pixel unit including a light emitting unit and a pixel definition layer disposed around the light emitting unit; wherein in at least one pixel unit, a light wave partition groove is provided in the pixel definition layer on at least one side of the light emitting unit, and a light wave blocking layer is provided in the light wave partition groove.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: August 30, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hongfei Cheng, Yong Qiao, Xinyin Wu
  • Patent number: 11417679
    Abstract: According to one embodiment, a semiconductor memory device includes a substrate; an insulating layer provided on the substrate; a conductive layer provided on the insulating layer; a stacked body provided on the conductive layer and including a plurality of electrode layers and a plurality of insulating layers respectively provided among the plurality of electrode layers; a columnar section piercing through the stacked body to reach the conductive layer and extending in a first direction in which the stacked body is stacked; and a source layer. The columnar section includes a channel body and a charge storage film provided between the channel body and the respective electrode layers. The conductive layer includes a first film having electric conductivity and in contact with the lower end portion of the channel body; and an air gap provided to be covered by the first film.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Kioxia Corporation
    Inventor: Shinya Arai
  • Patent number: 11404472
    Abstract: A display module includes a substrate, a plurality of LEDs that are disposed on the substrate and irradiate light, and a light blocking layer that covers the plurality of LEDs, and fills intervals among the plurality of LEDs, each interval of the intervals being a distance between two adjacent LEDs of the plurality of LEDs, and wherein the light blocking layer includes a plurality of openings formed such that a top surface of each of the plurality of LEDs is exposed.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoonsuk Lee, Doyoung Kwag, Eunhye Kim, Sangmoo Park, Minsub Oh
  • Patent number: 11398619
    Abstract: A display device is disclosed. The display device includes a substrate provided with a plurality of subpixels including a first light emitting area and a second light emitting area, a first electrode in the first light emitting area of each of the plurality of subpixels on the substrate, a first light emitting layer provided on the first electrode, a second electrode provided on the first light emitting layer, a second light emitting layer provided on the second electrode, a third electrode provided on the second light emitting layer, and a light guide structure provided between the substrate and the first electrode, guiding light emitted from the first light emitting layer to be emitted to the second light emitting area.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: July 26, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Wooram Youn, Jang Jo
  • Patent number: 11398527
    Abstract: A display substrate includes a driving substrate and a stacked structure disposed at a side of the driving substrate. The stacked structure includes a plurality of emission layers and a plurality of carrier transport layers that are stacked in a direction perpendicular to the side of the driving substrate. The stacked structure forms a plurality of light-emitting devices, and each light-emitting device includes at least two emission portions that are respectively located in at least two emission layers. The plurality of light-emitting devices include a plurality of first light-emitting devices and a plurality of second light-emitting devices. Emission portions in each first light-emitting device are separated from each other. At least two emission portions in each second light-emitting device are adjacent to each other, and the at least two adjacent emission portions share at least one carrier transport layer.
    Type: Grant
    Filed: December 25, 2019
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Can Wang, Can Zhang, Ming Yang, Han Yue, Ning Cong, Minghua Xuan, Xiaochuan Chen
  • Patent number: 11393999
    Abstract: The present disclosure discloses a display substrate and a manufacturing method thereof, a display panel, and a display apparatus. The display substrate comprises: a base substrate, and display units on the base substrate; each of the display units comprises: an anode, a hole transporting layer, an electroluminescent layer, an electron transporting layer and a cathode, all of which are superposed in sequence; a plurality of nano-grooves are disposed on a surface of at least one of the hole transporting layer and the electron transporting layer, the surface is in contact with the electroluminescent layer; and a distance between any two adjacent nano-grooves is on a nanometric order of magnitude. The present disclosure is useful in improving the capability of the display units in resisting bending and preventing the display units from being ruptured due to a bending process.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: July 19, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Ni Jiang, Xiaohui Wu
  • Patent number: 11387281
    Abstract: An array substrate, a display panel, and a display device.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: July 12, 2022
    Assignee: Yungu (Gu'an) Technology Co., Ltd.
    Inventors: Zhenghang Xin, Junhui Lou, Meng Zhang
  • Patent number: 11380744
    Abstract: Embodiments of the present disclosure provided a display panel and a display device. The display panel includes a plurality of pixel defining units, each of the plurality of pixel defining units has a pixel hole for arranging a sub-pixel, and a first guide groove section connecting to the pixel hole, and the first guide groove sections corresponding to two adjacent pixel defining units are connected to each other to form a first guide groove.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 5, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingkai Ni, Xiaofen Wang, Xiang Zhou, Huili Wu
  • Patent number: 11374075
    Abstract: The present application provides a display panel and a display device. The display panel includes a plurality of first pixel circuits located in a bending display region and a plurality of second pixel circuits located in a non-bending display region, a first gap is defined between two adjacent first pixel circuits, a second gap is defined between two adjacent second pixel circuits, a width of the first gap is greater than a width of the second gap, and at least one through groove is formed in a region corresponding to the first gap and extends along an extending direction of the first gap.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 28, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Shaojing Wu
  • Patent number: 11374081
    Abstract: The present invention discloses an organic light emitting diode flexible array substrate including a displaying region, a folding region adjacent to the displaying region, a flexible substrate, barrier layer, a buffer layer, a polycrystalline layer stacked together, a first insulation layer disposed on the buffer layer and covering the polycrystalline layer, a first metal layer, a second metal layer, and a third metal layer. Folding signal lines are formed on a portion of the second metal layer in the folding region. Folding signal lines are formed on a portion of the third metal layer in the folding region. Double folding signal lines of the second metal layer and third metal layer drastically increase reliability and lifespan of the signal lines in the folding region.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 28, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wei Wang, Pinquan Xu
  • Patent number: 11373997
    Abstract: An HVIC is a gate driver IC that drives a three-phase inverter and includes high-potential-side regions for three phases on a single semiconductor substrate. The high-potential-side region includes an n-type region and has a potential that is fixed at a power source voltage potential through a VB contact region in the n-type region. The high-potential-side region has a high-side driving circuit that drives an upper arm element of the inverter. An interphase region between adjacent high-potential-side regions has no GND contact region and no GND contact electrode arranged therein, and has only a p-type region at a ground potential constituting a low-potential-side region. The high-potential-side region of one phase has a p?-type opening between the high-side driving circuit of thereof and the high-side driving circuit or the GND contact region of an adjacent high-potential-side region that is of another phase and sandwiches the interphase region therebetween.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: June 28, 2022
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Masaharu Yamaji
  • Patent number: 11374124
    Abstract: Described examples include integrated circuits, drain extended transistors and fabrication methods in which a silicide block material or other protection layer is formed on a field oxide structure above a drift region to protect the field oxide structure from damage during deglaze processing. Further described examples include a shallow trench isolation (STI) structure that laterally surrounds an active region of a semiconductor substrate, where the STI structure is laterally spaced from the oxide structure, and is formed under gate contacts of the transistor.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 28, 2022
    Assignee: Texas Instruments Incorporated
    Inventors: James Robert Todd, Xiaoju Wu, Henry Litzmann Edwards, Binghua Hu
  • Patent number: 11374115
    Abstract: A method includes forming a first semiconductor layer over a substrate; forming a second semiconductor layer over the first semiconductor layer; forming a dummy gate structure over the second semiconductor layer; performing an etching process to form a recess in the first and second semiconductor layers; forming a epitaxy structure over in the recess, wherein the epitaxy structure is in contact with the first and second semiconductor layers; performing a solid phase diffusion process to form a doped region in the epitaxy structure, in which the doped region is in contact with the second semiconductor layer and is separated from the first semiconductor layer; and replacing the dummy gate structure with a metal gate structure.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: June 28, 2022
    Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD., NATIONAL TAIWAN UNIVERSITY
    Inventors: Chung-En Tsai, Fang-Liang Lu, Pin-Shiang Chen, Chee-Wee Liu
  • Patent number: 11374063
    Abstract: The present invention provides a display panel and a manufacturing method of the display panel. The display panel includes a base substrate, a light emitting device layer, an encapsulation layer, and a color filter layer. The color filter layer includes multiple first light shielding portions, multiple color resists, and multiple second light shielding portions. An opening is formed between each two adjacent second light shielding portions and arranged corresponding to the pixel unit. The present invention increases an area for inkjet printing in a high-resolution small-sized display panel and reduces the reflectivity of the display panel to ambient light, and edges of the color filter layer less affect a light emitting device.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 28, 2022
    Inventor: Zesheng Chen
  • Patent number: 11374194
    Abstract: The present disclosure provides a standable OLED display device comprising a first shell, a second shell, a support plate, four first rods, and an OLED panel. The first shell and the second shell have sliders and chutes. Each slider partially slides in a corresponding chute. Two first rods are rotatably connected to the first shell and the support plate. Two other first rods are rotatably connected to the second shell and the support plate. The OLED panel is disposed on the support plate, the first shell, and the second shell, and two opposite sides thereof are respectively inserted in the first shell and the second shell. When the first shell and the second shell slide close to each other, the support plate rises in parallel with respect to the first shell and the second shell so that the device is changed from an initial planar state to a standing state.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 28, 2022
    Assignee: Wuhan China Star Optoelectronics Semicosdescter Display Techeology Co., Ltd.
    Inventor: Zikang Feng