Solid-state Type Patents (Class 313/498)
  • Patent number: 11489123
    Abstract: Disclosed herein are compounds capable of producing organic electroluminescence (EL) devices having excellent properties, organic EL devices comprising the compounds, and electronic devices comprising the organic EL devices. The compounds of this disclosure are represented by formula (1) below, where A, B, C, and R1 to R11 are defined herein.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: November 1, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Ryota Takahashi, Tomoki Kato, Hidetsugu Ikeda
  • Patent number: 11476389
    Abstract: The invention relates to a method for producing an optoelectronic semiconductor chip comprising the following steps: providing a semiconductor body (1) having a radiation-permeable surface (1a), and introducing structures (2) into the semiconductor body (1) on the radiation-permeable surface (1a), wherein the structures (2) are quasi-regular.
    Type: Grant
    Filed: September 3, 2018
    Date of Patent: October 18, 2022
    Assignee: OSRAM OLED GmbH
    Inventors: Michael Huber, Jana Sommerfeld, Martin Herz, Sebastian Hoibl, Christian Rumbolz, Albrecht Kieslich, Bernd Boehm, Georg Rossbach, Markus Broell
  • Patent number: 11450838
    Abstract: Provided are a display panel, a manufacturing method thereof and a display device. The display panel includes a substrate, multiple light-emitting elements and a circular polarizer. The multiple light-emitting elements are disposed on one side of the substrate. The circular polarizer is disposed on one side of the multiple light-emitting elements facing away from the substrate. The circular polarizer is provided with first hollow structures corresponding to at least part of the multiple light-emitting elements. The area where each first hollow structure is located overlaps a respective one of the at least part of the multiple light-emitting elements.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: September 20, 2022
    Assignee: Hubei Yangtze industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventors: Linshan Guo, Shaorong Yu
  • Patent number: 11433500
    Abstract: Provided is a manufacturing method for a thin phosphor glass plate by which a thin phosphor glass plate can be more certainly produced. A manufacturing method includes the steps of: preparing a phosphor glass base material 21 having a first principal surface 21a and a second principal surface 21b opposed to each other; placing the phosphor glass base material 21 on a stage 22 and fixing the second principal surface 21b onto the stage 22; and polishing the first principal surface 21a of the phosphor glass base material 21 with a polishing member 23 including an abrasive layer 24.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 6, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Hideki Asano, Tomomichi Kunimoto, Hiroyuki Shimizu
  • Patent number: 11437549
    Abstract: A light emitting device includes: a light emitting element having an emission peak wavelength in a range of 430 nm to 470 nm; and a fluorescent member including a fluorescent material that is excited by light from the light emitting element for light emission, wherein a mixture of light from the light emitting element and light from the fluorescent material has a correlated color temperature in a range of 1500 K to 11000 K, as measured according to JIS Z8725, the color deviation duv that is a deviation from the black body radiation track on the CIE1931 chromaticity diagram of the mixture of light and is measured according to JIS Z8725 falls within a range of more than 0 to 0.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: September 6, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Kenji Asai, Kazushige Fujio
  • Patent number: 11424229
    Abstract: A pixel structure, a display device, and a method of manufacturing a pixel structure, the pixel structure including a base substrate; at least one first electrode arranged in an upper portion of the base substrate; at least one second electrode having a circular shape extending along a circumferential direction around the at least one first electrode; and a plurality of LED elements connected to the first and second electrodes.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyunmin Cho, Daehyun Kim, Hyundeok Im, Jonghyuk Kang, Jaebyung Park, Jooyeol Lee, Chio Cho, Sungjin Hong
  • Patent number: 11411200
    Abstract: A front emission type display device is provided. In the display device, light generated by a light-emitting element which is disposed on a first substrate can be emitted to the outside through a color filter and a second substrate, so that an image can be realized on an outer surface of the second substrate. In the display device, a space between a first device passivation layer on the light-emitting element, and a second device passivation layer on the second substrate can be filled by the color filter and a pixel defining pattern disposed on a side surface of the color filter. Thus, in the display device, the distortion of the first substrate and the second substrate can be prevented or reduced.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: August 9, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Moon-Soo Kim, Sung-Bin Shim, Choojin Park
  • Patent number: 11408925
    Abstract: A semiconductor element encompasses a first external electrode on an upper surface side of a semiconductor chip, a second external electrode, spaced apart from the first external electrode, provided in parallel with the first external electrode; and a protective film covering the first and second external electrodes, having first and second windows to expose portions of upper surfaces of the first and second external electrodes, respectively. Planar patterns of the first and second windows are in two-fold rotational symmetry with respect to a center point of an area including the first and second external electrodes and to be asymmetric with respect to a center line between the first and second external electrodes.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: August 9, 2022
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Taichi Karino
  • Patent number: 11404473
    Abstract: Described are arrays of light emitting diode (LED) devices and methods for their manufacture. An LED array comprises a first mesa comprising a top surface, at least a first LED including a first p-type layer, a first n-type layer and a first color active region and a tunnel junction on the first LED, the top surface comprising a second n-type layer on the tunnel junction. The LED array further comprises an adjacent mesa comprising a top surface, the first LED, a second LED including the second n-type layer, a second p-type layer and a second color active region. There is a first trench separating the first mesa and the adjacent mesa, n-type metallization in the first trench and in electrical contact with the first color active region and the second color active region of the adjacent mesa, and p-type metallization contacts on the n-type layer of the first mesa and on the p-type layer of the adjacent mesa.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: August 2, 2022
    Assignee: LUMILEDS LLC
    Inventors: Robert Armitage, Isaac Wildeson
  • Patent number: 11404598
    Abstract: A method of patterning a quantum dot light emitting device and a quantum dot light emitting device are provided. A quantum dot material is printed by providing a printing mesh having a predetermined pattern, which avoids issues such as slow speed and complex process brought by printing, transfer, and the like processes in a conventional method of patterning a quantum dot light emitting device in the prior art. This can reduce printing process and save printing time.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: August 2, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yong Fan
  • Patent number: 11404451
    Abstract: An electronic device substrate, a manufacturing method thereof, and an electronic device are provided. The electronic device substrate includes a base substrate, a first insulating layer, and light-emitting sub-units, a first conductive member and a second conductive member, which are on a side of the first insulating layer away from the base substrate. The light-emitting sub-units and the first conductive member are respectively in array region and periphery region, and the second conductive member is between the first conductive member and the array region; orthogonal projections of the first and second conductive members on the base substrate are spaced apart; each light-emitting sub-unit includes first and second driving electrodes, second driving electrodes of the light-emitting sub-units are integrated to form a first common electrode layer; the periphery region further includes a second common electrode layer electrically connected to the first conductive member and the first common electrode layer.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: August 2, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Kui Zhang, Pengcheng Lu, Li Liu, Yunlong Li, Dacheng Zhang
  • Patent number: 11335735
    Abstract: A stretchable display apparatus having a substantially non-stretched state and a stretched state is provided. The stretchable display apparatus includes a first stretchable display panel including a plurality of first active subpixels of a first color and a plurality of first standby subpixels of the first color, a second stretchable display panel including a plurality of second active subpixels of the second color and a plurality of second standby subpixels of the second color, and a third stretchable display panel including a plurality of third active subpixels of the third color and a plurality of third standby subpixels of the third color. In the substantially non-stretched state, the plurality of first standby subpixels of the first color, the plurality of second standby subpixels of the second color, and the plurality of third standby subpixels of the third color are configured to be in a standby state and not emit light.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: May 17, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Zhenhua Zhang, Yangpeng Wang
  • Patent number: 11329258
    Abstract: A display panel, a display device and a manufacture method of a display panel are provided. The display panel includes a base substrate, a plurality of pixel units disposed in an array and a total reflection structure. Each of the plurality of pixel units includes a light emitting region and a light emitting device in the light emitting region; and the total reflection structure is disposed on a light exiting side of the light emitting device and surrounds at least a portion of the light emitting region; the total reflection structure includes a main structure and a second structure covering a side, which faces the light emitting device, of the main structure, and a refractive index of the second structure is greater than a refractive index of the main structure.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 10, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Kui Gong, Xianxue Duan, Cheng Chen, Dezhi Xu, Chengcheng Wang
  • Patent number: 11322720
    Abstract: The present application proposes a display panel including a substrate including a display area and a non-display area surrounding the display area; a light-emitting layer located in the display area of the substrate; a groove obtained by exposing and developing the substrate, and disposed in the non-display area of the substrate and surrounding the display area; a thin-film encapsulation layer covering the light-emitting layer, and including an inorganic layer and an organic layer which are disposed alternately, wherein the organic layer is located in a region surrounded by the groove. The display panel has better bending resistance.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: May 3, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: San Zhu
  • Patent number: 11316113
    Abstract: Novel organic compounds comprising a bicarbazole core are provided. In particular, the compounds has a 3,3?-bicarbazole core substituted at the 9-position with a triazine or pyrimidine. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and improved lifetime.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: April 26, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Raymond Kwong, Ken-Tsung Wong, Ming-Cheng Kuo
  • Patent number: 11307395
    Abstract: Method and apparatus to maintain a resonant condition of an optical cavity such that the optical path length through the optical cavity is independent or minimally dependent on the angle of incidence of a received optical signal are disclosed. A material within the optical cavity has an index of refraction that varies as a function of an angle of propagation of light within the material, thereby achieving the independence of the optical path length and the angle of incidence. The resonant condition is maintained over a range of angles of incidence of the received optical signal.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: April 19, 2022
    Assignee: RAYTHEON COMPANY
    Inventors: Andrew Kowalevicz, Benjamin P. Dolgin, Gary M. Graceffo, Paul Searcy, Rizwan Parvez
  • Patent number: 11309372
    Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk in a display, the pixel definition layer may disrupt continuity of the OLED layers. The pixel definition layer may have a steep sidewall, a sidewall with an undercut, or a sidewall surface with a plurality of curves to disrupt continuity of the OLED layers. A control gate that is coupled to a bias voltage and covered by gate dielectric may be used to form an organic thin-film transistor that shuts the leakage current channel between adjacent anodes on the display.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 19, 2022
    Assignee: Apple Inc.
    Inventors: Jaein Choi, Andrew Lin, Cheuk Chi Lo, Chun-Yao Huang, Gloria Wong, Hairong Tang, Hitoshi Yamamoto, James E. Pedder, KiBeom Kim, Kwang Ohk Cheon, Lei Yuan, Michael Slootsky, Rui Liu, Steven E. Molesa, Sunggu Kang, Wendi Chang, Chun-Ming Tang, Cheng Chen, Ivan Knez, Enkhamgalan Dorjgotov, Giovanni Carbone, Graham B. Myhre, Jungmin Lee
  • Patent number: 11296139
    Abstract: An array substrate for a digital X-ray detector, and an X-ray detector including the same are disclosed, which reduce or minimize a contact resistance between a bias electrode and a PIN diode, and also improve a fill factor of the PIN diode. In the array substrate, a dual bias electrode in which a second bias electrode formed of a transparent conductive material is connected to a first bias electrode that is additionally connected to an upper electrode of the PIN diode, such that total resistance of the bias electrodes is reduced and a line width of the first bias electrode formed of a non-transparent material is reduced, resulting in an increased fill factor of the PIN diode.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 5, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hyeji Jeon, Seungyong Jung, Hanseok Lee, Hyungil Na, Jungjune Kim
  • Patent number: 11296160
    Abstract: A display substrate is provided. The display substrate includes a base substrate; a pixel definition structure on the base substrate; a plurality of light emitting elements respectively in a plurality of first apertures; and a reflective layer at least partially in a respective one of the plurality of first apertures and configured to reflect light laterally emitted from a respective one of the plurality of light emitting elements to exit from a light emitting surface of the respective one of the plurality of light emitting elements. The pixel definition structure includes a first pixel definition layer on the base substrate, and a second pixel definition layer on a side of the first pixel definition layer away from the base substrate. Lateral sides of the first pixel definition layer and the second pixel definition layer have different slope angles with respect to a main surface of the base substrate.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: April 5, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhijun Lv, Liwen Dong, Wenqu Liu, Xiaoxin Song, Zhao Cui, Libo Wang, Detian Meng, Feng Zhang
  • Patent number: 11286407
    Abstract: The present disclosure relates to an electronic device comprising at least one organic light-emitting diode and a pressure sensitive adhesive composition comprising a synthetic rubber block (co)polymer, and wherein the pressure sensitive adhesive composition has: a) a relative permittivity no greater than 2.50, when measured at an alternating current frequency of 100 kHz according to the test method described in the experimental section; b) a water uptake no greater than 0.60 wt %, when measured after exposure to 60° C. and 95% relative humidity for 120 hours, according to the test method described in the experimental section; and c) optionally, a peel adhesion value above 0.20 N/mm, when measured at 85° C. according to the test method described in the experimental section.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 29, 2022
    Assignee: 3M Innovative Properties Company
    Inventors: John W. McAllister, Jingjing Ma, Zhong Chen, Pierre R. Bieber, Petra M. Stegmaier, Eike H. Klünker
  • Patent number: 11258049
    Abstract: A display device includes a substrate having a light emission area, a light emitting element layer including a light emitting element on the light emission area, and an sensing layer on the light emitting element layer and including a sensing electrode having a first opening overlapping the light emission area, a first refraction layer directly on the sensing electrode and having a second opening overlapping the light emission area, and a second refraction layer on the light emitting element layer and the first refraction layer, a first optical refractive index of the first refraction layer being less than a second optical refraction index of the second refraction layer.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: February 22, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyeong Jun Kim, Ji Ryun Park, Chi Wook An, Mi Ran Ji
  • Patent number: 11236888
    Abstract: A lighting device (200) comprising: a plurality of solid state lighting elements (112, 114, 116, 118, 122, 124, 126, 128) arranged in a ring-shaped geometry (100); an optical element (210) comprising a ring-shaped collimating structure (232) configured to collimate light emitted by the plurality of solid state lighting elements; and light-mixing optics (220) configured to mix light emitted by the plurality of solid state lighting elements, wherein the light-mixing optics (220) is configured to apply a different degree of light-mixing in a tangential direction of the ring-shaped collimating structure (210) than in a radial direction.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: February 1, 2022
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Johannes Petrus Maria Ansems, Michel Cornelis Josephus Marie Vissenberg
  • Patent number: 11217637
    Abstract: The present disclosure is related to a display substrate. The display substrate having a display area comprises a first electrode layer on a base substrate; a second electrode layer on a side of the first electrode layer far away from the base substrate; a light emitting layer between the first electrode layer and the second electrode layer; a pixel definition layer defining a plurality of sub-pixel regions with each of the plurality of sub-pixel regions containing the light emitting layer and the first electrode layer; and a signal line coupled to the second electrode layer. The signal line is substantially within the display area and at a different layer from the second electrode layer.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: January 4, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shengji Yang, Xue Dong, Xiaochuan Chen, Hui Wang, Yanming Wang, Fang Yu, Wei Li
  • Patent number: 11217631
    Abstract: A display device according to an embodiment of the present disclosure includes: a first pixel and a second pixel successively arranged along a first direction and configured to emit light of different colors, a first color filter disposed on the first pixel, and a second color filter disposed on the second pixel so as to be adjacent to the first color filter. The second color filter is expanded in a direction toward the first pixel at a boundary between the first pixel and the second pixel.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: January 4, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung Rok Lee
  • Patent number: 11187917
    Abstract: A display portion including a plurality of pixel units that are paired with a plurality of micro lenses is provided, in which each of the pixel units has a plurality of pixels and each of the pixels includes a micro LED.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 30, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Katsuji Iguchi
  • Patent number: 11187967
    Abstract: The present disclosure provides a fill light device, a method for controlling a fill light device, and a computer readable storage medium. The fill light device includes a flash light; and a light guide, the light guide being located on a light-exiting side of the flash light and being configured to be controlled to change a shape and/or a light-transmitting area to change a light-exiting area and/or a light-emitting angle of the fill light device. The method includes: obtaining a control parameter of the light guide; and changing a shape and/or a light-transmitting area of the light guide according to the control parameter to change a light-exiting area and/or a light-emitting angle of the fill light device. In this way, the light-exiting area and/or the light-emitting angle of the fill light device can be controlled to meet the fill light requirements in different capturing scenarios.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: November 30, 2021
    Assignee: SHENZHEN TRANSSION HOLDINGS CO., LTD.
    Inventors: Ming Xiao, Lingzhi Li, Haibin Wang, Zihui Zhao, Binjie Zhu, Wenhui Dai
  • Patent number: 11177397
    Abstract: A method for forming semiconductor devices includes providing a substrate with a conductive pad formed thereon; forming a transparent structure over the substrate, wherein the transparent structure includes a plurality of collimating pillars adjacent to the conductive pad; forming a light-shielding structure over the plurality of collimating pillars and the conductive pad; performing a cutting process to remove one or more materials directly above the conductive pad, while leaving remaining material to cover the conductive pad, wherein the material includes a portion of the light-shielding structure; and performing an etching process to remove the remaining material to expose the conductive pad.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 16, 2021
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Hsin-Hui Lee, Han-Liang Tseng, Jiunn-Liang Yu, Kwang-Ming Lin, Yin Chen, Si-Twan Chen, Hsueh-Jung Lin, Wen-Chih Lu, Chih-Hsien Chen
  • Patent number: 11164521
    Abstract: A pixel circuit includes: a driver transistor that supplies a current dependent on a voltage supplied via a signal line; a write transistor connected between the signal line and a gate electrode of the driver transistor; a first organic EL element connected to one electrode of the driver transistor, the one electrode being one of a drain electrode and a source electrode of the driver transistor; a switching transistor connected to the one electrode of the driver transistor; and a second organic EL element connected to the one electrode of the driver transistor via the switching transistor. The pixel circuit performs mobility correction that corrects a mobility of the driver transistor. The switching transistor turns ON after a write operation that writes the voltage supplied via the signal line and turns OFF before an operation that performs the mobility correction of the driver transistor begins.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: November 2, 2021
    Assignee: JOLED INC.
    Inventor: Tetsuro Yamamoto
  • Patent number: 11158699
    Abstract: A display device including a substrate that includes a circuit layer; an insulating layer on the substrate; a pixel defining layer on the insulating layer, the pixel defining layer having an opening exposing a region of a top surface of the insulating layer; a light blocking layer covering a top surface and a side surface of the pixel defining layer; and an organic electroluminescent element in the opening, wherein the organic electroluminescent element includes a first electrode on the region of the top surface of the insulating layer exposed through the opening; at least one organic layer on the first electrode; and a second electrode on the at least one organic layer.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: October 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung-chul Kim, Sujeong Kim, Kiyoung Yeon, Sun-kyu Joo, Chul Huh, Inok Kim, Hyeran Mun, Inseok Song, Wooyoung Lee, Yui-ku Lee
  • Patent number: 11145701
    Abstract: A display device includes a plurality of pixels each including a first light emitting element with a first light reflecting layer, a second light emitting element with a second light reflecting layer, and a third light emitting element with a third light reflecting layer, arranged in a two-dimensional matrix. Each of the light emitting elements includes a first electrode, an organic layer, and a second electrode. Grooves that each have a light shielding layer are formed in a boundary region between the light emitting elements. A bottom of the first groove and a bottom of the third groove are located at a position higher than a top surface of the first light reflecting layer. A bottom of the second groove is located at a position higher than a top surface of the second light reflecting layer.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 12, 2021
    Assignee: Sony Corporation
    Inventor: Tomokazu Ohchi
  • Patent number: 11127908
    Abstract: Provided is a display device including a first sub-pixel, a second sub-pixel adjacent to the first sub-pixel. The first sub-pixel and the second sub-pixel each include a semiconductor film, a gate electrode, a gate insulating film, an interlayer insulating film, and a leveling film and further possesses a light-emitting element located over the leveling film. The display device has a partition wall located between the first sub-pixel and the second sub-pixel and a trench passing through the leveling film.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: September 21, 2021
    Assignee: Japan Display Inc.
    Inventor: Masakazu Gunji
  • Patent number: 11120735
    Abstract: A light emitting device package includes a first light emitting diode pixel, the first light emitting diode pixel including first light emitting diode chips that each emit light, and a first pixel driving integrated circuit under the first light emitting diode chips of the first light emitting diode pixel, the first pixel driving integrated circuit configured to drive the first light emitting diode chips based on an active matrix scheme, in which each of the first light emitting diode chips is driven using an entire one frame interval, and based on a pulse width modulation scheme, in which a time during which each of first driving currents is applied to a respective one of the first light emitting diode chips is controlled within the entire one frame interval.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: September 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyoungjun Kim, Dongsoo Lim
  • Patent number: 11114641
    Abstract: The present disclosure discloses a display panel. The display panel may include multiple thin film layers. The multiple thin film layers may include a first layer and a second layer adjacent to the first layer. The first layer may define a recess at a face toward the second layer. The second layer may include a protrusion at a face toward the first layer. The protrusion may be engaged in the recess. A diameter of a tip of the protrusion may be larger than a diameter of a root of the protrusion. A shape of a space in the recess may match with a contour of the protrusion.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: September 7, 2021
    Assignee: Bazhou Yungu Electronics Technology Co., Ltd.
    Inventors: Yiying Xu, Enting Zhao, Yuansheng Sun, Xiangwei Zhang
  • Patent number: 11099444
    Abstract: A display device includes a thin film transistor (TFT) array substrate, an isolation structure, and a front panel laminate (FPL) structure. The TFT array substrate has pixel electrodes. The isolation structure is between the pixel electrodes to form a first resistance between adjacent pixel electrodes. The front panel laminate structure is located on the isolation structure and the pixel electrodes adhesive layer, and has a display medium layer therein.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: August 24, 2021
    Assignee: E Ink Holdings Inc.
    Inventors: Chang-Cheng Lo, Shi-Lin Li, Ji-Yuan Li, Yi-Lung Wen
  • Patent number: 11059986
    Abstract: The present invention relates to a composition comprising a nanosized light emitting material, and method for preparing of said composition. The present invention further relates to a light luminescent medium, a light emitting device, the present invention further more relates to method for preparing of a composition and to method for preparing of a light emitting medium.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: July 13, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Masaki Hasegawa, Noriyuki Matsuda
  • Patent number: 11056614
    Abstract: A micro light-emitting diode chip includes an epitaxial structure, a first electrode, and a second electrode. The epitaxial structure includes a first type doped semiconductor layer, a light emitting layer, and a second type doped semiconductor layer, and the epitaxial structure further includes a first surface, a side surface and a second surface opposite to the first surface. The side surface of the epitaxial structure connects to an outer edge of the first surface and an outer edge of the second surface. The first electrode is disposed on the first surface, and is electrically connected to the first type doped semiconductor layer and contacts the first type doped semiconductor layer on a portion of the first surface. The second electrode is disposed on and surrounds the side surface, and electrically connected to the second type doped semiconductor layer, and directly contacts the second type doped semiconductor layer on a portion of the side surface.
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: July 6, 2021
    Assignee: PlayNitride Inc.
    Inventors: Yu-Hung Lai, Yu-Yun Lo, Tzu-Yang Lin
  • Patent number: 11024678
    Abstract: The present disclosure provides an electroluminescent display apparatus including a substrate including a first subpixel, a second subpixel, and a third subpixel, a first electrode in each of the first subpixel, the second subpixel, and the third subpixel on the substrate, a bank provided in a boundary between any two of the first subpixel, the second subpixel, and the third subpixel to cover an edge of the first electrode, a protection layer on the first electrode and the bank, a light emitting layer on the protection layer, and a second electrode on the light emitting layer.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: June 1, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Daehee Kim, JiYoung Park, Hyeju Choi
  • Patent number: 11024823
    Abstract: A light emitting element, display device, and method of manufacture of the same are disclosed. In one example, a light emitting element includes a lower layer/interlayer insulation layer; a light reflection layer formed on the lower layer/interlayer insulation layer; an upper layer/interlayer insulation layer; a first electrode formed on the upper layer/interlayer insulation layer; an insulation film formed at least on a region of the upper layer/interlayer insulation layer where the first electrode is not formed; an organic layer formed over the insulation film from above the first electrode, the organic layer having a light emitting layer including an organic light emitting material; and a second electrode formed on the organic layer. A groove is formed in a portion of the upper layer/interlayer insulation layer located in an edge region of the light emitting element, and an upper portion of the groove is closed with the insulation film.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: June 1, 2021
    Assignee: Sony Corporation
    Inventors: Takayoshi Kato, Naoya Kasahara, Shimpei Tsujikawa
  • Patent number: 11011721
    Abstract: An electroluminescence display device, including a first electrode and a second electrode facing each other; a quantum dot emission layer disposed between the first electrode and the second electrode, the quantum dot emission layer including a plurality of quantum dots and not including cadmium, wherein the quantum dot emission layer includes a red emission layer disposed in a red pixel, a green emission layer disposed in a green pixel, and a blue emission layer disposed in a blue pixel, wherein the device has color reproducibility according to a DCI standard of greater than or equal to about 89%.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: May 18, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Hyung Kim, Eun Joo Jang, Dae Young Chung, Yong Wook Kim, Yuho Won, Oul Cho
  • Patent number: 10991892
    Abstract: The present invention relates to carbazole derivatives, in particular for use as triplet matrix materials in organic electroluminescent devices. The invention further relates to a method for producing the compounds according to the invention and to electronic devices comprising same.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: April 27, 2021
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Thomas Eberle, Anja Jatsch, Christof Pflumm, Jonas Valentin Kroeber
  • Patent number: 10985235
    Abstract: A display device includes a substrate, a first insulating layer, a power lines, and connection lines. The substrate includes a peripheral area adjacent to at least one side of a pixels area. The first insulating layer including one or more contact holes. The power line is in the peripheral area and provides a driving voltage to pixels. The power line includes a first metal layer on the substrate and a second metal layer connected to the first metal layer through the contact hole. The connection lines extend to the peripheral area from the pixels and overlap part of the power line. The power line includes a first area in which the first and second metal layers are electrically connected through the contact hole. The connection line does not overlap the first area of the power line.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: April 20, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hyun Lee, Deuk Jong Kim, Shin Jeong Han
  • Patent number: 10971662
    Abstract: A light-emitting diode (LED) package includes a light-emitting structure, a transmissive material layer on the light-emitting structure, and a support structure covering at least a portion of a side surface of the transmissive material layer, a side surface of the light-emitting structure, and at least a portion of a bottom surface of the light-emitting structure.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 6, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyuk-jin Cho, Dong-hoon Lee
  • Patent number: 10964822
    Abstract: A semiconductor device includes a substrate, a gate arranged on the substrate, a dielectric arranged on the gate, a channel arranged on the dielectric, a source electrically coupled to the channel, and a drain electrically coupled to the channel. Each of the gate, dielectric, channel, source, and drain includes a corresponding mixture of hafnium dioxide (HfCte) and zinc oxide (ZnO) layers and at least two of the gate, dielectric, channel, source, and drain comprise different mixtures of the hafnium dioxide and zinc oxide layers.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: March 30, 2021
    Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Fwzah Hamud Alshammari, Husam Niman Alshareef
  • Patent number: 10950592
    Abstract: A display panel and a method of fabricating the same, and a display device are provided, the display panel includes a display substrate a package substrate opposite to each other, the display substrate includes a first base substrate; and a first electrode, an electroluminescent layer and a second electrode disposed on the first base substrate in sequence; the package substrate includes a second base substrate; and a conductive layer on the second base substrate, the conductive layer and the second electrode facing towards each other; the display panel further includes a conductive adhesive between the second electrode and the conductive layer, the conductive adhesive is configured to bond the display substrate with the package substrate, and electrically connect the second electrode with the conductive layer.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 16, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Xiaochuan Chen, Likai Deng
  • Patent number: 10950803
    Abstract: This invention discloses a novel multicomponent system or a single compound that is capable of performing triplet-triplet annihilation up conversion process. (TTA-UC) A solution or solid film that comprises this TTA-UC system or compound is provided. This system or compound can be used in an optical or optoelectronic device.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: March 16, 2021
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Chuanjun Xia, Ting-Chih Wang, Chun Lin
  • Patent number: 10936023
    Abstract: An electronic apparatus includes a case that protects contents of the electronic apparatus from external mechanical impacts and/or electric disturbance, and two or more parts of electrically conductive material electrically insulated from each other. The two or more parts are electrically coupled with electric circuitry of the electronic apparatus. A first of the two or more parts has at least one electric contact area on an outer surface of the first of the two or more parts, and a second of the two or more parts has at least one electric contact area on the outer surface of the second of the two or more parts. The electric contact areas are configured to electrically couple with external counterpart contact areas for electric signals, electric energy, and/or electric data transfer to and/or from the electronic apparatus.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: March 2, 2021
    Assignee: Bittium Wireless Oy
    Inventor: Toni Lehtimäki
  • Patent number: 10937995
    Abstract: An organic light emitting diode (OLED) display panel and an OLED display device include a substrate, a thin film transistor array function layer disposed on the substrate; a planarization layer disposed on the thin film transistor array function layer; an anode electrode disposed on the planarization layer; and a pixel definition layer disposed on the anode electrode. The planarization layer and/or the pixel definition layer include a plurality of light-absorbing bodies used for absorbing incident light emitted from outside the OLED display panel. The light-absorbing bodies are doped in the planarization layer and/or the pixel definition layer.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 2, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Chongchong Xia, Wei Yu
  • Patent number: 10916606
    Abstract: The present disclosure provides an OLED light emitting device including a plurality of pixel defining structures disposed on a substrate, the plurality of pixel defining structures include a substrate layer and a plurality of particles randomly distributed in the substrate layer, the particles are capable of scattering light incident thereon, and the substrate layer of the pixel defining structures has a non-uniform density.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: February 9, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Gao, Yansong Li
  • Patent number: 10907093
    Abstract: A condensed cyclic compound and a device including the same are provided. The compound has the structure wherein rings A1-A4 may independently be selected from a C5-C30 carbocyclic ring and a C2-C30 heterocyclic ring, R1 to R4 may independently be selected from Formula 2-1, Formula 2-2, hydrogen, deuterium (-D), —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a nitro group, an amidino group, a hydrazino group, a hydrazono group, a C1-C60 alkyl group, a C2-C60 alkenyl group, a C2-C60 alkynyl group, a C1-C60 alkoxy group, a C3-C10 cycloalkyl group, a C1-C10 heterocycloalkyl group, a C3-C10 cycloalkenyl group, a C1-C10 heterocycloalkenyl group, a C6-C60 aryl group, a C6-C60 aryloxy group, a C6-C60 arylthio group, a C1-C60 heteroaryl group, a monovalent non-aromatic condensed polycyclic group, a monovalent non-aromatic condensed heteropolycyclic group, —Si(Q1)(Q2)(Q3), —B(Q1)(Q2), —C(?O)(Q1), —S(?O)2(Q1), and —P(?O)(Q1)(Q2). Details, including structures of Formula 2-1 and Formula 2-2, are provided.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soobyung Ko, Haejin Kim, Mieun Jun, Youngkook Kim, Seokhwan Hwang
  • Patent number: 10910593
    Abstract: An organic light emitting display device includes: a first substrate; a plurality of pixels on the first substrate, each of the pixels including a corresponding portion of an organic light emitting layer on the first substrate; an encapsulation film on the organic light emitting layer; a protruding pattern layer on the encapsulation film and comprising a plurality of spacers at a boundary between adjacent ones of the pixels; an adhesive layer on the protruding pattern layer; and a second substrate on the adhesive layer.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Kyu Joo, Byung Chul Kim, In Ok Kim, Keun Chan Oh, Chang Soon Jang, In Seok Song, Gak Seok Lee