Organic Phosphor Patents (Class 313/504)
  • Patent number: 11655211
    Abstract: A polycyclic compound is represented by Formula 1: where X1, R1 to R11, L1, L2, and n1 to n4 are further defined. An organic electroluminescence device includes the polycyclic compound.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: May 23, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junta Fuchiwaki, Tohru Sato
  • Patent number: 11658205
    Abstract: An electroluminescent display device includes a substrate on which a display area and a non-display area are defined, a plurality of sub-pixels disposed in the display area on the substrate and arranged along a first direction and a second direction, a light-emitting diode disposed at each of the plurality of sub-pixels and including a first electrode, a light-emitting layer and a second electrode, a first bank disposed between adjacent sub-pixels arranged along the second direction and overlapping edges of the first electrode, and a second bank disposed between adjacent sub-pixels arranged along the first direction and having an opening corresponding to a row of the sub-pixels arranged along the second direction, wherein the opening includes a first portion corresponding to the display area and a second portion corresponding to the non-display area, and a width of the second portion is narrower than a width of the first portion.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: May 23, 2023
    Assignee: LG Display Co., Ltd.
    Inventor: Jeong-Mook Choi
  • Patent number: 11653511
    Abstract: Disclosed herein is an organic EL light-emitting apparatus including a plurality of pixels including a first pixel and a second pixel. The first pixel and second pixel share a common layer. The pixel other than the second pixel includes a non-common layer. The common layer contains a delayed fluorescent compound. The second pixel is configured to emit a light from the common layer. The pixel other than the second pixel is configured to emit a light from the non-common layer.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: May 16, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Yuichiro Kawamura
  • Patent number: 11651727
    Abstract: A light emitting device of the present disclosure includes: a circuit board; a plurality of substrates including a first substrate and a second substrate, wherein the first substrate is disposed on the circuit board, and the second substrate is disposed on the circuit board and overlapped with the first substrate; a plurality of light emitting units disposed on the first substrate; a plurality of pixel driving circuits electrically connected to the plurality of light emitting units; and a plurality of gate driving circuits electrically connected to the plurality of pixel driving circuits, wherein at least a part of the plurality of pixel driving circuits or at least a part of the plurality of gate driving circuits are disposed on the second substrate.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 16, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Yi-Hua Hsu, Ker-Yih Kao, Ming-Chun Tseng, Mu-Fan Chang, Wen-Lin Huang
  • Patent number: 11647649
    Abstract: An organic light emitting display device includes a substrate including a display area and a non-display area, the display area including a plurality of sub-pixels; an overcoat layer disposed on the substrate; first electrodes disposed on the overcoat layer and in the sub-pixels; a first bank disposed in the display area and the non-display area and including first openings, the first openings respectively exposing the first electrodes; a second bank disposed on the first bank and including second openings in the display area, third openings in the non-display area and fourth openings, the second openings exposing the plurality of first electrodes arranged in the display area, the third openings exposing the first openings arranged in the non-display area, and the fourth openings connecting the second openings and the third openings; and an organic light emitting layer disposed in each of the second openings, the third openings and the fourth openings.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 9, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Seong-Hyun Kim, Jae-Ki Lee, Jeong-Won Lee, Chang-Yong Gong
  • Patent number: 11637169
    Abstract: A light emitting display apparatus includes a substrate including a display portion, a plurality of pixels disposed in the display portion, a common electrode disposed in the display portion and electrically connected to each of the plurality of pixels, a pixel common voltage line disposed in the display portion and electrically connected to the common electrode, a pad part disposed at one edge portion of the substrate, the pad part including a pixel common voltage pad connected to the pixel common voltage line, and at least one closed loop line disposed at an edge portion of the substrate to surround the display portion, wherein the at least one closed loop line is electrically connected to the pixel common voltage pad.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: April 25, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: YoungIn Jang, KyungMin Kim, HyunDong Kim
  • Patent number: 11637217
    Abstract: A method of manufacturing a light emitting device is provided. The method includes providing a substrate, disposing a plurality of light emitting elements on the substrate, disposing an insulating layer on the plurality of light emitting elements, patterning the insulating layer to form a partition wall defining a plurality of cavities corresponding to the plurality of light emitting elements, filling a light conversion ink in at least a part of the cavities, and baking the light conversion ink, wherein the partition wall is configured to block the light conversion ink from overflowing in the step of filling the light conversion ink in at least the part of the cavities.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: April 25, 2023
    Assignee: InnoLux Corporation
    Inventors: Hsiao-Lang Lin, Tsung-Han Tsai
  • Patent number: 11637264
    Abstract: Electronic device includes lower electrodes, insulating layer covering end portion of each lower electrode, organic compound layer covering the insulating layer and electrode region of upper surface of each lower electrode, and upper electrode covering the organic compound layer. The electrode region of the upper surface is located on inner side of the end portion The organic compound layer includes mixed layer containing first organic material and second organic material having hole mobility lower than that of the first organic material. The insulating layer includes inclined surface inclined with respect to the upper surface of the lower electrode. Ratio of weight of the second organic material to weight of the first organic material is higher in second portion of the mixed layer on the inclined surface than in first portion of the mixed layer on the electrode region.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: April 25, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroyuki Mochizuki, Akira Okita, Tetsuo Takahashi
  • Patent number: 11629142
    Abstract: Disclosed is a novel organic electroluminescent compound represented by Formula (I): The organic electroluminescent compound is employed as a material for at least one organic layer of an organic electroluminescent device such as a light emitting layer, a hole transport layer, an electron transport layer, an electron blocking layer, and/or a capping layer, achieving excellent luminescent properties (including high luminous efficiency and quantum efficiency) of the device. Also disclosed is an organic electroluminescent device including the organic electroluminescent compound.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 18, 2023
    Assignee: P&H TECH CO., LTD.
    Inventors: Seo-Yong Hyun, Seok-Keun Yoon
  • Patent number: 11631833
    Abstract: The present disclosure provides a light emitting device and a display apparatus. The light emitting device includes: a substrate; a first electrode, a functional layer and a second electrode which are sequentially arranged on the substrate, where the functional layer at least includes a light emitting layer, a dielectric layer is arranged between at least one of the first electrode and the second electrode and the functional layer, metal nanoparticles are arranged in the dielectric layer, and a localized plasmon resonance frequency of the metal nanoparticles is matched with a wavelength of light emitted by the light emitting layer.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: April 18, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhenqi Zhang
  • Patent number: 11631827
    Abstract: An electroluminescent display panel and a manufacturing method thereof, and a display device. Each of a plurality of pixel units included in the electroluminescent display panel includes a first sub-pixel, a second sub-pixel and a third sub-pixel, respectively, each of the sub-pixels includes a first electrode, and a light-emitting layer, respectively, taking a planar surface of the first electrode facing the light-emitting layer as a reference plane, the light-emitting layer of the first sub-pixel is on a first anti-node of a first standing wave, the light-emitting layer of the second sub-pixel is on a second anti-node of a second standing wave, and the light-emitting layer of the third sub-pixel is on a second anti-node of a third standing wave.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: April 18, 2023
    Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yue Hu, Xinxin Wang, Huai Ting Shih, Chin Lung Liao
  • Patent number: 11626574
    Abstract: An organic light-emitting display apparatus includes: a substrate; first and second pixel electrodes on the substrate and spaced from each other; an insulating layer between the first and second pixel electrodes, the insulating layer covering ends of the first and second pixel electrodes, and having a step height difference; an auxiliary electrode on the insulating layer; first and second intermediate layers on the first and second pixel electrodes, the first and second intermediate layers being spaced from each other, and including first and second light-emitting layers, respectively; first and second opposite electrodes on the first and second intermediate layers, the first and second opposite electrodes being spaced from each other, and in contact with the auxiliary electrode; and first and second passivation layers on the first and second opposite electrodes, the first and second passivation layers being spaced from each other, and covering the first and second opposite electrodes, respectively.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: April 11, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaesik Kim, Jaeik Kim, Yeonhwa Lee, Joongu Lee, Sehoon Jeong
  • Patent number: 11619605
    Abstract: A display apparatus includes: a first substrate including a display area and a peripheral area; a second substrate overlapping the first substrate; a sealing unit surrounding the display area and disposed between the first substrate and the second substrate; and a first resistance measuring pattern located at an upper surface of the sealing unit, and a second resistance measuring pattern located at a lower surface of the sealing unit, wherein each of the first and second resistance measuring patterns extends along edges of the first substrate and has a rectangular shape including an open side.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: April 4, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Seoyeon Kim
  • Patent number: 11621396
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 4, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Amir Parham, Jonas Kroeber, Jens Engelhart, Anja Jatsch, Christian Eickhoff, Christian Ehrenreich
  • Patent number: 11618740
    Abstract: A compound represented by formula (A): wherein Ar, R1 to R7, R11 to R14, R21 to R24, R31 to R34, *1, and R41 to R48 are as defined in the description provides organic electroluminescence devices with improved device performance.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 4, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yu Kudo, Tasuku Haketa, Hirokatsu Ito
  • Patent number: 11616096
    Abstract: A display device includes a substrate, a first light-emitting unit, a second light-emitting unit, a first light conversion unit, a second light conversion unit, a first buffer layer, a second buffer layer, and a sidewall buffer layer. The first light-emitting unit and the second light-emitting unit are disposed on the substrate. The first buffer layer is disposed between the first light conversion unit and the first light-emitting unit and has a first curved bottom surface. The second buffer layer is disposed between the second light conversion unit and the second light-emitting unit and has a second curved bottom surface. The sidewall buffer layer directly contacts the first light conversion unit and the second light conversion. A width of the first curved bottom surface is different from a width of the second curved bottom surface.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: March 28, 2023
    Assignee: INNOLUX CORPORATION
    Inventors: Jia-Yuan Chen, Tsung-Han Tsai, Kuan-Feng Lee, Yuan-Lin Wu
  • Patent number: 11610948
    Abstract: The present application proposes a display panel, including a display area and a non-display area surrounding the display area, wherein the display panel includes: a plurality of metal traces and a plurality of color resist blocks located in the display area; and a test key located in the non-display area, wherein the test key includes a plurality of color resist patterns and a plurality of metal patterns, each of the color resist patterns corresponds to a corresponding one of the color resist blocks, each of the metal patterns corresponds to one of the metal traces, and each of the color resist patterns is disposed correspondingly between adjacent ones of the metal patterns.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: March 21, 2023
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Pan Chen
  • Patent number: 11610951
    Abstract: A display panel and a method for manufacturing the display panel are provided. The display panel includes a plurality of pixel units, wherein each of the pixel units includes first sub-pixels, second sub-pixels, third sub-pixels, first pixel definition layers, and a second pixel definition layer. Each of the pixel units is enclosed by one of the first pixel definition layers into a rectangle; and the second pixel definition layer is disposed in each of the first pixel definition layers and between the first sub-pixels, the second sub-pixels, and the third sub-pixels.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 21, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yifei Bing
  • Patent number: 11611040
    Abstract: A manufacturing method of a display panel and a display panel are provided by the application. The manufacturing method of the display panel includes steps of providing a substrate; forming a thin film transistor layer, an anode layer, and a pixel definition layer on the anode layer on the substrate, wherein the pixel definition layer comprises a plurality of pixel definition regions; printing an ink-jet printing ink on the anode layer inside the pixel definition regions to form an ink-jet printing precursor layer; and printing a membrane surface improving solvent on the ink-jet printing precursor layer, wherein after the membrane surface improving solvent volatilizes, an ink-jet printing layer is formed.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: March 21, 2023
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Aiguo Tu, Jinchuan Li, Weiran Cao, Yuanchun Wu
  • Patent number: 11605795
    Abstract: Provided are an organic light-emitting display panel and a display device. The organic light-emitting display includes an array substrate and organic light-emitting components each having an anode, a cathode and an organic functional layer. The organic functional layer includes an organic light-emitting layer, a first electron transmission layer, and a hole injection layer. LUMO1 and LUMO4 satisfy: |LUMO1?LUMO4|<1.7 eV. HOMO5 and HOMO4 satisfy: |HOMO5?HOMO4|<1 eV. A work function ?1 of the first dopant and a work function ?4 of the cathode satisfy: ?1<?4, and a work function ?2 of the second dopant and a work function ?3 of the anode satisfy: ?2>?3.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 14, 2023
    Assignees: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD., WUHAN TIANMA MICROELECTRONICS CO., LTD. SHANGHAI BRANCH
    Inventors: Shuang Cheng, Jinghua Niu, Xiangcheng Wang, Qing Zhu, Yinhe Liu, Xiaoxi Na, Lei Wen
  • Patent number: 11605675
    Abstract: A display device includes a first sub-pixel have a square form, a second sub-pixel positioned to face a first side or a second side of the first sub-pixel and having a rectangular form, and a third sub-pixel positioned to face the first side or the second side of the first sub-pixel spaced from the second sub-pixel and having a rectangular form, wherein the first side and the second side of the first sub-pixel come together at an angle, and wherein the first sub-pixel, the second sub-pixel, and the third sub-pixel are configured to emit lights of different colors.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: March 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sangshin Lee, Jongbum Kim
  • Patent number: 11605791
    Abstract: A compound having a structure selected from the group consisting of: is disclosed.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: March 14, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Morgan C. Macinnis, George Fitzgerald
  • Patent number: 11603431
    Abstract: The invention relates to novel compounds containing one or more units derived from 2,6-disubstituted-[1,5]naphthyridine or 1,6-disubstituted-1H-[1,5]naphthyridine-2-one, to methods for their preparation and educts or intermediates used therein, to mixtures and formulations containing them, to the use of the compounds, mixtures and formulations as organic semiconductors in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices and organic photodetectors (OPD), and to OE, OPV and OPD devices comprising these compounds, mixtures or formulations.
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: March 14, 2023
    Assignee: RAYNERGY TEK INCORPORATION
    Inventors: Lana Nanson, Nicolas Blouin, William Mitchell, Joseph Cameron, Peter Skabara
  • Patent number: 11605680
    Abstract: A display device includes: a substrate having thereon a first subpixel, a second subpixel, and a third subpixel; a first electrode in each of the first to third subpixels on the substrate; a first bank between the first electrodes; a second bank on the first bank and having a width less than that of the first bank; a light emitting layer on the first electrodes, the first bank, and the second bank; and a second electrode on the light emitting layer. The light emitting layer provided on the second bank and the light emitting layer provided on the first bank are spaced apart from each other.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: March 14, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: YuCheol Yang, Suhyeon Kim
  • Patent number: 11600801
    Abstract: According to one embodiment, an organic semiconductor device includes a supporting substrate, a plurality of organic EL light emitting elements, a first barrier layer, a flattening layer, and a second barrier layer. The flattening layer exists sporadically and makes gentle in inclination steep elevation change present in the surface of the first barrier layer. The first barrier layer and the second barrier layer are made of moisture penetration preventive material.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 7, 2023
    Assignee: Japan Display Inc.
    Inventors: Daisuke Kato, Kaichi Fukuda
  • Patent number: 11600786
    Abstract: Provided is an organic EL device having high efficiency and high driving stability while being driven at a low voltage. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposite to each other. At least one of the light-emitting layers contains a host material and a light-emitting dopant, and (i) a first host formed of an indolocarbazole compound having one or two indolocarbazole rings, and (ii) a second host formed of a carbazole compound having a plurality of carbazole rings and having a bond structure represented by the following general formula (3) are used as the host material.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: March 7, 2023
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Junya Ogawa, Takahiro Kai, Masanori Hotta, Yuji Ikenaga, Mitsuru Sakai, Masashi Tada, Tokiko Ueda, Katsuhide Noguchi
  • Patent number: 11599228
    Abstract: An electronic device includes: a display layer; and a sensor layer on the display layer, the sensor layer including: a first sensing electrode having a first sub-sensing electrode and a second sub-sensing electrode electrically separated from the first sub-sensing electrode; and a second sensing electrode intersecting the first sensing electrode, wherein the sensor layer is configured to sense an external input through a change in mutual capacitance between the first sensing electrode and the second sensing electrode, and the sensor layer is further configured to sense an input by an active pen through a change in capacitance of each of the first sub-sensing electrode, the second sub-sensing electrode, and the second sensing electrode.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: March 7, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seongjun Lee, Suin Kim, Jaseung Ku, Suyul Seo, Gi-Na Yoo, Dong-Hwan Lee, Jaeik Lim
  • Patent number: 11594688
    Abstract: An organic light emitting diode having a substrate, a first electrode, a hole transporting layer proximate the first electrode, a second electrode, an electron transporting layer proximate the second electrode, and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a square planar tetradentate platinum or palladium complex, and excimers formed by two or more of the complexes are aligned such that emitting dipoles of the excimers are substantially parallel to a surface of the substrate.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: February 28, 2023
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventor: Jian Li
  • Patent number: 11594683
    Abstract: A material for an organic electroluminescent device that is excellent in hole injection and transport abilities, electron blocking ability, stability in a thin film state, and durability is provided as a material for an organic electroluminescent device having high efficiency and high durability. Further, an organic electroluminescent device having low driving voltage, high efficiency, and a long lifetime is provided by combining the material with various materials for an organic EL device that is excellent in hole and electron injection and transport abilities, electron blocking ability, thin film stability, and durability, in such a manner that the characteristics of the materials can be effectively exhibited. An organic electroluminescent device comprising at least an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode in this order, wherein the hole transport layer comprises an arylamine compound of the following general formula (1).
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: February 28, 2023
    Assignee: Hodogaya Chemical Co., Ltd.
    Inventors: Shuichi Hayashi, Naoaki Kabasawa, Takeshi Yamamoto, Hideyoshi Kitahara
  • Patent number: 11594579
    Abstract: The present application provides a display substrate, the display substrate including a plurality of sub-pixel units, the plurality of sub-pixel units arranged in a plurality of rows and columns, wherein the plurality of columns of the sub-pixel units include alternatingly disposed solid color sub-pixel unit columns and mixed color sub-pixel unit columns, the solid color sub-pixel unit columns including a plurality of sub-pixel units corresponding to the same color, and in the mixed color sub-pixel unit columns, adjacent two sub-pixel units correspond to different colors. In the same row of sub-pixel units, the sub-pixel units on both sides of the sub-pixel unit in the solid color sub-pixel unit column have different colors. The utility model also provides a display device. The display device does not appear jagged or blurred when displaying an image.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 28, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Jian Xu
  • Patent number: 11588127
    Abstract: An organic light emitting diode display is provided that may include a first substrate, a plurality of electrodes on the first substrate and spaced apart from each other, a pixel defining layer on the plurality of electrodes, spacers on the pixel defining layer, and a second substrate on the spacers. The pixel defining layer includes a plurality of openings spaced apart from each other and respectively open to the plurality of electrodes. The spacers on the pixel defining layer are at crossing points of a plurality of virtual lines, the spacers crossing spaces between adjacent openings of the plurality of openings.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: February 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hee Chul Jeon
  • Patent number: 11579346
    Abstract: Disclosed are a color filter including a wavelength conversion layer which converts the wavelength of light, a light transmission layer formed on the wavelength conversion layer, and a wavelength filter layer formed on the light transmission layer, and an image display device. The light transmission layer transmits a light moving between the wavelength conversion layer and the wavelength filter layer and blocks the flow of outgas. The color filter includes the light transmission layer which transmits a light moving between the wavelength conversion layer and the wavelength filter layer and blocks the flow of outgas, thereby capable of achieving high color reproductivity while having excellent light-emitting efficiency and light retention rate.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 14, 2023
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Hyung Joo Kim, Juho Kim, Hyunjung Wang, Jong Soo Lee
  • Patent number: 11581496
    Abstract: The present specification provides a benzocarbazole-based compound of chemical formula 1 and an organic light-emitting device comprising same. The benzocarbazole-based compound as a material of an organic material layer of the organic light emitting device provides enhanced efficiency, low driving voltage and increased lifetime.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: February 14, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Minjun Kim, Hyok Joon Kwon, Young Seok Kim, Donghee Kim, Kongkyeom Kim, Min Woo Lee
  • Patent number: 11575111
    Abstract: A display assembly includes a display panel and at least one optical film group each disposed on a display surface. Each optical film group includes a quarter-wave plate, a reflective polarizer and an absorbing polarizer. The reflective polarizer includes a reflective portion capable of allowing light with a polarization direction parallel to a polarization axis of the reflective polarizer to pass through and reflecting light with a polarization direction perpendicular to the polarization axis. An orthographic projection of an effective light-emitting area of at least one sub-pixel is substantially within an orthographic projection of the reflective portion. The absorbing polarizer is capable of allowing light with a polarization direction parallel to a polarization axis of the absorbing polarizer to pass through and absorbing light with a polarization direction perpendicular to the polarization axis.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 7, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Weipin Hu, Hong Yang, Chun Wang, Congcong Wei, Mingxiao Jiang, Qianqian Bu, Xiao Sun, Yun Qiu, Dan Wang
  • Patent number: 11569457
    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, in which at least one of the organic layers includes a polycyclic compound including a plurality of electron donors and an electron acceptor connecting the electron donors, at least one of the electron donors is a condensed ring including a borepine core, and the electron acceptor includes a phenyl group including, as a substituent, at least one cyano group or a heterocycle including at least one nitrogen atom, or a heteroaryl group including an oxygen atom or a sulfur atom for forming a ring, thereby achieving improved emission efficiency.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jungsub Lee, Hyein Jeong, Hye Jeong Park
  • Patent number: 11568810
    Abstract: According to one embodiment, a display apparatus includes a plurality of semiconductor layers, a first insulation film, a first conductive layer, a second insulation film and a display element includes a second conductive layer. The first conductive layer and the second conductive layer are opposed to each other to form a capacitance unit.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: January 31, 2023
    Assignee: Japan Display Inc.
    Inventors: Kazuyoshi Omata, Hiroyuki Kimura, Makoto Shibusawa, Hiroshi Tabatake
  • Patent number: 11563132
    Abstract: A solar cell of an embodiment includes: a p-electrode in which a first p-electrode and a second p-electrode are laminated; a p-type light-absorbing layer in direct contact with the first p-electrode; an n-type layer in direct contact with the p-type light-absorbing layer; and an n-electrode. The first p-electrode is disposed between the p-type light-absorbing layer and the second p-electrode. The p-type light-absorbing layer is disposed between the n-type layer and the first p-electrode. The n-type layer is disposed between the p-type light-absorbing layer and the n-electrode. The first p-electrode includes a metal oxide containing Sn as a main component.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: January 24, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Soichiro Shibasaki, Mutsuki Yamazaki, Kazushige Yamamoto, Yuya Honishi
  • Patent number: 11557635
    Abstract: A display device, a mask assembly, and an apparatus for manufacturing the display device are provided. The display device may reduce glare and includes sub-pixels having accurate and precise patterns. The display device including a first sub-pixel having a quadrangular shape, a second sub-pixel facing a first side of the first sub-pixel, the second sub-pixel having a quadrangular shape, and a third sub-pixel facing the first side of the first sub-pixel and spaced apart from the second sub-pixel, the third sub-pixel having a quadrangular shape, where a distance from the first side of the first sub-pixel to the second sub-pixel and a distance from the first side of the first sub-pixel to the third sub-pixel are different from each other.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: January 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sangshin Lee, Jongbum Kim
  • Patent number: 11557688
    Abstract: A solar cell of an embodiment includes: a substrate; an n-electrode; an n-type layer; a p-type light absorption layer which is a semiconductor of a Cu-based oxide; and a p-electrode. The n-electrode is disposed between the substrate and the n-type layer. The n-type layer is disposed between the n-electrode and the p-type light absorption layer. The p-type light absorption layer is disposed between the n-type layer and the p-electrode. The n-type layer is disposed closer to a light incident side than the p-type light absorption layer. The substrate is a single substrate included in the solar cell.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 17, 2023
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kazushige Yamamoto, Soichiro Shibasaki, Mutsuki Yamazaki, Yuya Honishi
  • Patent number: 11555028
    Abstract: An organic compound represented by the following general formula [1] is excellent in thermal stability. In the general formula [1], R1 to R12 are each independently selected from the group consisting of a hydrogen atom and a substituent. Symbol A is selected from the group consisting of a divalent residue of naphthalene, phenanthrene, fluorene, benzofluorene, dibenzofluorene or spirofluorene, and a heteroarylene group having 4 to 12 carbon atoms. Symbol B is selected from the group consisting of an arylene group having 6 to 25 carbon atoms and a heteroarylene group having 4 to 12 carbon atoms. Symbol n is an integer of 0 to 3.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 17, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yosuke Nishide, Naoki Yamada, Hiroki Ohrui, Hironobu Iwawaki, Hirokazu Miyashita, Jun Kamatani
  • Patent number: 11556075
    Abstract: A light emitting device, includes: a base plate extending in a first direction; multiple light emitting units arranged on a surface of the base plate while being shifted from each other in the first direction, and each including a support body extending in the first direction and multiple light sources supported on the support body while being arranged in the first direction; and a flow path disposed over the surface of the base plate to surround at least part of the light emitting units and allowing air to flow therethrough in the first direction.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: January 17, 2023
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Yosuke Kasuya, Tsutomu Otsuka
  • Patent number: 11552256
    Abstract: To provide a light-emitting element with an improved reliability, a light-emitting element with a high current efficiency (or a high quantum efficiency), and a novel dibenzo[f,h]quinoxaline derivative that is favorably used in a light-emitting element which is one embodiment of the present invention. A light-emitting element includes an EL layer between an anode and a cathode. The EL layer includes a light-emitting layer; the light-emitting layer contains a first organic compound having an electron-transport property and a hole-transport property, a second organic compound having a hole-transport property, and a light-emitting substance; the combination of the first organic compound and the second organic compound forms an exciplex; the HOMO level of the first organic compound is lower than the HOMO level of the second organic compound; and a difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is less than or equal to 0.4 eV.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: January 10, 2023
    Inventors: Satoshi Seo, Takao Hamada, Tatsuyoshi Takahashi, Yasushi Kitano, Hiroki Suzuki, Hideko Inoue
  • Patent number: 11552159
    Abstract: Embodiments of the disclosed subject matter provide a device having a substrate, and a plurality of unit areas of an organic light emitting diode (OLED) display disposed on the substrate. The unit areas may be repeating, area-filling subdivisions of the substrate that each have an anode and a cathode. The organic film may be disposed over portions of the device other than the unit areas. The device may include at least one pixel having a plurality of sub-pixels disposed within each of the plurality of unit areas. The cathode of at least one pixel of each of the plurality of unit areas may be a common cathode.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: January 10, 2023
    Assignee: Universal Display Corporation
    Inventors: Xin Xu, Gregory McGraw, William E. Quinn, Gregg Kottas, Jason Paynter, Julia J. Brown
  • Patent number: 11552261
    Abstract: A compound having the following formula Formula I, is disclosed. The compound is useful as an emitter in OLED applications.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: January 10, 2023
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Hsiao-Fan Chen, Tyler Fleetham
  • Patent number: 11545087
    Abstract: A display device including: a plurality of sub-pixels arranged in a matrix, each including an electro-optical element having a structure in which a display functional layer is sandwiched between an upper electrode and a lower electrode; and an auxiliary interconnect contact in a pixel area in which the plurality of sub-pixels are arranged in a matrix and electrically connecting the upper electrode to an auxiliary interconnect, wherein m (m is an integer equal to or larger than two) sub-pixels adjacent to each other along an arrangement direction of the sub-pixels are regarded as one group, and n (n is a natural number smaller than m) auxiliary interconnect contacts are formed for each group.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: January 3, 2023
    Assignee: SONY CORPORATION
    Inventors: Junichi Yamashita, Katsuhide Uchino
  • Patent number: 11538892
    Abstract: A display panel, a manufacturing method of the display panel, and a display device including the display panel are provided. The display panel includes an insulating substrate; a first circuit at a first side of the insulating substrate; and a second circuit at a second side of the insulating substrate. The first side and the second side of the insulating substrate are opposite to each other in a first direction perpendicular to a display surface, and the first circuit and the second circuit on opposing sides of the insulating substrate are electrically connected by tapered through hole and tapered pad.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: December 27, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shulei Li, Hua Huang, Changhan Hsieh
  • Patent number: 11538872
    Abstract: The present disclosure relates to a display structure, a display panel including the display structure, and a display device including the display panel and an image acquisition device. The display structure includes a plurality of pixels disposed in a first region of the display structure, wherein each pixel of the plurality of pixels includes a plurality of sub-pixels of N number of colors, and each sub-pixel of the plurality of sub-pixels includes an organic light emitting diode; and N number of driving circuits disposed in a second region of the display structure, wherein an ith driving circuit of the N number of driving circuits is configured to drive each sub-pixel of an ith color of the plurality of sub-pixels, wherein 1?i?N and N is an integer greater than 1.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 27, 2022
    Assignee: Beijing Xiaomi Mobile Software Co., Ltd.
    Inventor: Qingfang Bian
  • Patent number: 11532803
    Abstract: A method of manufacturing a display panel includes providing a base substrate and forming a plurality of anodes above the base substrate; forming a photoresist layer above a side of the base substrate above which the plurality of anodes are formed, the photoresist layer including a plurality of openings and each opening corresponding to at least one anode; and forming a plurality of light emitting layers and a cathode layer sequentially above a side of the base substrate above which the plurality of anodes and the photoresist layer are formed, the cathode layer including a plurality of cathode films and each cathode film corresponding to a single opening.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: December 20, 2022
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Pengcheng Lu, Xiaochuan Chen, Shengji Yang, Kuanta Huang, Minghua Xuan, Lei Wang, Yanming Wang, Dongni Liu, Han Yue, Weihai Wang
  • Patent number: 11532664
    Abstract: A light emitting diode (LED) stack for a display including a first LED sub-unit configured to emit a first colored light, a second LED sub-unit disposed on the first LED sub-unit and configured to emit a second colored light, and a third LED sub-unit disposed on at least one of the first LED sub-unit and the second LED sub-unit and configured to emit a third colored light, in which the first LED sub-unit is configured to emit light through the second LED sub-unit and the third LED sub-unit, and the second LED sub-unit is configured to emit light through the third LED sub-unit.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: December 20, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: RE49343
    Abstract: An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer disposed between the cathode and the anode, the organic thin-film layer having one or more layers including an emitting layer, in which the emitting layer includes a first material represented by the following formula (1) and a second material in a form of a fluorescent dopant material.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: December 20, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Masahiro Kawamura, Hirokatsu Ito, Toshinari Ogiwara, Yumiko Mizuki