Organic Semiconductor Material Patents (Class 257/40)
  • Patent number: 11367853
    Abstract: The present disclosure provides an OLED display panel, a preparation method thereof and an OLED display device. By providing an uneven surface on a side of a first encapsulation layer away from the organic light-emitting function layer in a non-display area, the uneven surface of the first encapsulation layer can block the flow of the second encapsulation layer to a certain extent, so as to reduce the fluidity and the climbing distance of the edge of the second encapsulation layer, and increase the edge stress and the slope angle. Thereby the narrow frame design of the product is achieved, the thickness uniformity of the edge of the second encapsulation layer is improved, the Mura defect in the non-display area is avoided, and the encapsulation result is guaranteed.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: June 21, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ge Wang, Zhiliang Jiang, Ting Wang, Zi Qiao
  • Patent number: 11367850
    Abstract: An electroluminescent display device includes a substrate including a first sub pixel, a second sub pixel, and a third sub pixel, a first electrode in each of the first to third sub pixels on the substrate, an emission layer on the first electrode, and a second electrode on the emission layer, wherein the first sub pixel is provided with a first emission area including a first sub emission area and a second sub emission area, and the first sub emission area is configured to emit mixed light of first colored light and second colored light, wherein the second colored light is different from the first colored light, and the second sub emission area is configured to emit the second colored light.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 21, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Pureum Kim, Wooram Youn, YoungMi Kim
  • Patent number: 11367844
    Abstract: Included are the steps of: forming a laminated body (7) by disposing a resin layer (12), an inorganic layer (3) having mean stress (Px) of 0 (zero) or having tensile stress, a TFT layer (4), an OLED element layer (5), and a sealing layer (6) in this order on an upper side of a supporting substrate (50); and separating the supporting substrate (50) from the laminated body (7).
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: June 21, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsunori Tanaka, Shoji Okazaki, Yuki Yasuda
  • Patent number: 11367858
    Abstract: Embodiments of the present disclosure provide a display module and display device. The display module comprises a display panel which is an organic electroluminescent display panel; a first phase retarder located on a side of an out-light surface of the display panel; a linear polarizer located on a side of first phase retarder facing away from the display panel; and a second phase retarder covering a side of the linear polarizer facing away from the display panel.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 21, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Yanliu Sun
  • Patent number: 11367852
    Abstract: The manufacturing method provided by this application comprises: providing a substrate on which a plurality of pixel defining layers are arranged at intervals; disposing a hole injection layer on the substrate; disposing a hole transport layer on the hole injection layer; disposing an organic light emitting layer on the hole transport layer; disposing an electron transport layer on the organic light emitting layer and the pixel defining layers; and disposing a cathode metal layer on the electron transport layer, wherein the cathode metal layer comprises a first area located above the pixel defining layers; and processing the cathode metal layer in the first area.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: June 21, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Zhonghui Du
  • Patent number: 11367763
    Abstract: In a display device, light emitting units each formed by stacking a first electrode, an organic layer, and a second electrode are formed and arranged in a two-dimensional matrix on a substrate. Partition walls are formed at opposing ends of the first electrodes. The organic layer and the second electrode are stacked on the entire surface including a part over the first electrodes and a part over the partition walls, and a filling layer filling recesses between the partition walls is formed on the second electrode. The partition walls include a multilayer stack including at least two layers extending above an upper surface of the first electrode, the multilayer stack including a lower layer portion and an upper layer portion located above the lower layer portion.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: June 21, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Tomokazu Ohchi
  • Patent number: 11367838
    Abstract: Provided are anthracene derivatives of Chemical Formula 1: wherein: X1 is O or S; R1 and R2 are the same as or different from each other, and each independently is hydrogen, deuterium, a nitrile group, a halogen groups a substituted or unsubstituted alkyl group, a substituted or unsubstituted silyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring; Ar is a substituted or unsubstituted heteroaryl group comprising O or S; and a is an integer of 0 to 9, and b is an integer of 0 to 8, and when a is 2 or greater, R1s are the same as or different from each other, and when b is 2 or greater, R2s are the same as or different from each other. Also provided are organic light emitting devices comprising same.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: June 21, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Younghee Lee, Dongheon Kim, Woochul Lee, Ji Young Choi, Wanpyo Hong, Young Seok Kim, Joo Ho Kim, Kongkyeom Kim
  • Patent number: 11362111
    Abstract: A thin film transistor array panel includes a substrate and a thin film transistor disposed on a surface of the substrate. The thin film transistor includes a semiconductor, a source electrode, and a drain electrode that are disposed on a same layer as one another. The semiconductor is between the source electrode and the drain electrode. The thin film transistor array panel further includes a buffer layer disposed between the semiconductor and the substrate and including an inorganic insulating material. The first edge of the buffer layer is substantially parallel to an adjacent edge of the semiconductor, a second edge of the buffer layer is substantially parallel to an adjacent edge of the source electrode, and a third edge of the buffer layer is substantially parallel to an adjacent edge of the drain electrode.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: June 14, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung Ho Kim, Dong Won Kim, Jong Moo Huh
  • Patent number: 11362280
    Abstract: The present specification relates to an organic light emitting diode.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: June 14, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Boonjae Jang, Dong Hoon Lee, Jungoh Huh, Minyoung Kang, Dong Uk Heo, Miyeon Han, Wooyung Jung, Min Woo Jung
  • Patent number: 11360345
    Abstract: The present disclosure provides a display panel and a display device. The display panel includes a thin film transistor layer; a reflective layer, disposed on the thin film transistor layer; a color film layer, disposed opposite to the reflective layer and having a light incident surface and a light emitting surface; a liquid crystal layer, disposed between the reflective layer and the color film layer; and at least one light guide structure, disposed on a surface of the reflective layer towards the liquid crystal layer. The at least one light guide structure is capable of adjusting a reflection angle of light incident from the light incident surface and reflecting the reflected light to the light emitting surface.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: June 14, 2022
    Assignee: JRD COMMUNICATION (SHENZHEN) LTD
    Inventors: Ke Lin, Zhuwei Qiu, Jitao Ma, Ping Chen
  • Patent number: 11362281
    Abstract: Disclosed are a compound for an organic optoelectronic diode, the compound expressed by Chemical Formula 1, a composition for an organic optoelectronic diode, an organic optoelectronic diode utilizing same, a display apparatus. The specific content of Chemical Formula 1 is defined in the specification.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: June 14, 2022
    Assignees: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Ju Shin, Jaejin Oh, Eun Sun Yu, Hanill Lee, Sung-Hyun Jung, Ho Kuk Jung, Sujin Han
  • Patent number: 11362282
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 14, 2022
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hye-Su Ji, Han-Kook Oh, Yun-Ji Lee, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi
  • Patent number: 11362157
    Abstract: The present disclosure provides a display panel, a display device including the display panel, and a method of manufacturing the display panel. The display panel includes a substrate; a pixel-defining layer disposed on the substrate, wherein the pixel-defining layer defines a plurality of sub-pixel regions arranged in rows and columns; and an organic light emitting element disposed in at least one of the plurality of sub-pixel regions, wherein a side of the pixel-defining layer away from the substrate is provided with a groove, the groove has a depth less than a thickness of the pixel-defining layer, and the groove is disposed between the organic light emitting elements that are adjacent to each other and emit light of different colors.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: June 14, 2022
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xianghua Nan, Qingyun Bai
  • Patent number: 11362278
    Abstract: An organic light-emitting display panel, a method of forming the same and a display device are provided. The method of forming an organic light-emitting display panel includes: providing a base substrate; forming an auxiliary cathode at a side of the base substrate and forming a pixel defining layer at a side of the auxiliary cathode away from the base substrate; filling a negative thermal expandable ball into the groove; forming a light-emitting layer at the side of the base substrate; performing a heating treatment and a vibrating treatment on the base substrate with the light-emitting layer; and forming a cathode layer at a side of the light-emitting layer away from the base substrate.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: June 14, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Litao Qu, Biao Tian, Jiewei Li, Langlang Ha, Shihlun Chen, Tao Jin, Jieshu Wu
  • Patent number: 11362295
    Abstract: The present disclosure relates to the technical field of display, and specifically relates to an organic electroluminescent device, and in particular, to a highly efficient fluorescence device. An organic electroluminescent device includes a hole transport layer, and a light-emitting layer. The hole transport layer and the light-emitting layer has an interface exciplex formed at an interface therebetween.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: June 14, 2022
    Assignees: KUNSHAN GO-VISIONOX OPTO-ELECTRONICS CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Lian Duan, Dongdong Zhang, Xiaozeng Song, Minghan Cai, Jinbei Wei
  • Patent number: 11362156
    Abstract: The present invention discloses a pixel unit, a manufacturing method, and a display device. The pixel unit includes a first positive electrode layer, a first pixel definition layer disposed on the first positive electrode layer, a second positive electrode layer disposed on the first pixel definition layer, and a second pixel definition layer disposed on the second positive electrode layer such that the first positive electrode layer and the second positive electrode layer are driven individually. The present invention, by employing two anode driving voltages in the same sub-pixel, drives two parts of a light emitting material individually to improve a brightness in a central region such that the entire pixel emits light evenly.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: June 14, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Zhenfei Cai
  • Patent number: 11362308
    Abstract: A display device according to embodiments includes: a display panel that includes a display area that includes a partition layer that includes a first opening through which light is emitted from an organic light emitting diode and a peripheral area around the display area; a touch electrode disposed on the display panel a touch electrode passivation layer that covers the touch electrode and includes a second opening that corresponds to the first opening; and a high refractive index layer that covers the touch electrode passivation layer and the second opening. The touch electrode passivation layer includes an open region formed in a portion that corresponds to the peripheral area, and the touch electrode passivation layer is not formed in the open region.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 14, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Soon Il Jung, Chi Wook An, Hae Young Yun, Jung-Hyun Cho
  • Patent number: 11362311
    Abstract: Substrates are disclosed that include an embedded or partially-embedded microlens array. Devices are disclosed that include an OLED disposed over a substrate having an embedded or partially embedded micro lens array. Devices as disclosed herein redirect up to 100% of the light that otherwise would be confined in organic and electrode layers toward the substrate and thus provide improved light extraction and device efficiency.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 14, 2022
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Stephen R. Forrest, Yue Qu
  • Patent number: 11362285
    Abstract: The present invention relates to a semiconducting material comprising an electron transport matrix compound comprising at least one electron transporting structural moiety and at least one polar structural moiety; a matrix compound and electronic device utilizing the semiconducting material.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: June 14, 2022
    Assignee: Novaled GmbH
    Inventors: Julien Frey, Annette Steudel
  • Patent number: 11362289
    Abstract: An organic light-emitting diode (OLED) display panel includes a flexible substrate layer including a first area and two second area. A bending stress applied to the first area is greater than a bending stress applied to the second areas. A driver circuit layer is disposed on the second areas and non-bent areas. An organic planarization portion includes a first organic planarization layer disposed on the first area, and a second organic planarization layer disposed on the driver circuit layer and the first organic planarization layer. A light-emitting layer is disposed on the second organic planarization layer and located on the bent area and the non-bent areas.
    Type: Grant
    Filed: August 14, 2019
    Date of Patent: June 14, 2022
    Inventor: Qian Huang
  • Patent number: 11355571
    Abstract: The present disclosure provides an OLED display panel which includes a substrate, a drive circuit layer, a light-emitting functional layer, and a pixel definition layer. The light-emitting functional layer includes a light-emitting area and a non-light-emitting area. The drive circuit layer includes a buffer layer, a first electrode plate, and a second electrode plate, and the first electrode plate and the second electrode plate form a storage capacitor. It solves the technical problem of current OLED display panels having dark stripes by not depositing the first electrode plate when silicon nitride is deposited to form a first buffer layer which prevents ionic gases produced when silicon nitride is deposited from having a reduction reaction with the first electrode plate.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: June 7, 2022
    Inventors: Zhenguo Lin, Xingyu Zhou, Yuanjun Hsu
  • Patent number: 11355060
    Abstract: A pixel circuit, a method of driving a pixel circuit, a display panel and a display device. The pixel circuit includes a light emitting drive circuit, a storage circuit, a data writing circuit, a light emitting control circuit, and a compensation circuit. The data writing circuit is configured to write a data signal into the storage circuit under a control of a scanning signal; the storage circuit is configured to store the data signal; the compensation circuit is configured to write compensation voltage information which is based on a compensation current signal into the light emitting drive circuit under a control of the scanning signal; and the light emitting control circuit is configured to control the light emitting drive circuit to drive a light emitting element to emit light under a control of a light emitting control signal.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 7, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haigang Qing, Yunsheng Xiao
  • Patent number: 11355557
    Abstract: A foldable display apparatus includes: a non-folding area, and a folding area, in which an aperture ratio of a plurality of red sub pixels in the folding area is lower than an aperture ratio of a plurality in red sub pixels of the non-folding area, an aperture ratio of the plurality of green sub pixels in the folding area is lower than an aperture ratio of the plurality of green sub pixels of the non-folding area, and an aperture ratio of the plurality in blue sub pixels of the folding area is lower than an aperture ratio of the plurality of blue sub pixels of the non-folding area.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: June 7, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Suk Choi, Sinchul Kang, Miyeon Seo
  • Patent number: 11355555
    Abstract: A solid-state imaging element according to an embodiment of the present disclosure includes: a photoelectric conversion layer; an insulation layer provided on one surface of the photoelectric conversion layer and having a first opening; and a pair of electrodes opposed to each other with the photoelectric conversion layer and the insulation layer interposed therebetween. Of the pair of electrodes, one electrode provided on a side on which the insulation layer is located includes a first electrode and a second electrode each of which is independent, and the first electrode is embedded in the first opening provided in the insulation layer to be electrically coupled to the photoelectric conversion layer.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: June 7, 2022
    Assignee: Sony Semiconductor Solutions Corporation
    Inventors: Toyotaka Kataoka, Keisuke Hatano, Kyosuke Ito
  • Patent number: 11355718
    Abstract: A display device includes a substrate including a first region, a second region, and a bending region between the first region and the second region, a protective substrate disposed below the substrate in the first region, the second region, and the bending region, a cushion layer disposed below the protective substrate in the first region and the second region, a pixel layer disposed on the substrate in the second region, and a drive chip disposed on the substrate in the first region. The substrate is bent at the bending region such that the first region overlaps the second region.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Heechul Jeon
  • Patent number: 11355712
    Abstract: An organic light-emitting device and a display apparatus including the organic light-emitting device includes a light emitting layer having one or more host materials having unexpectedly low driving voltage, high efficiency and a long life span.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: June 7, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jihyun Seo, Mikyung Kim, Seunggak Yang, Kwanhee Lee
  • Patent number: 11357118
    Abstract: A display device includes: a display panel including first and second areas, and a bending portion between the first and second areas; and a cover window on the display panel. The first area is between the cover window and the second area when the display panel is in a bent state, the first bending portion is between the cover window and the third bending portion when the display panel is in the bent state, and the bending portion includes a first bending portion extending from the first area, a second bending portion extending from the first bending portion, and a third bending portion between the second bending portion and the second area. A radius of curvature of the second bending portion is less than that of the first bending portion, and the radius of curvature of the second bending portion is less than that of the third bending portion.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: June 7, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Nyeng Kang, Min Soo Kim, Jong Hyun Choi
  • Patent number: 11355715
    Abstract: The present invention provides compounds of formulae (1) (2) wherein R1 and R2 are C1-30alkyl, C2-3O-alkenyl, C2-30-alkynyl, C5-7-cycloalkyl, C6-14-aryl or 5 to 14 membered heteroaryl, wherein C1-30-alkyl, C2-3O-alkenyl and C2-3O-alkynyl can be substituted with one or more substituents selected from the group consisting of halogen, phenyl, O—C1-20-alkyl, O—C2-20-alkenyl and O—C2-2O-alkynyl, and wherein C5-7-cycloalkyl, C6-14-aryl and 5 to 14 membered heteroaryl can be substituted with one or more substituents selected from the group consisting of halogen, C1-20alkyl, C2-2O-alkenyl, C2-2O-alkynyl, O—C1-20-alkyl, O—C2-2o-alkenyl and O—C2-2o-alkynyl, Ra, Rb, Rc and Rd are independently and at each occurrence selected from the group consisting of C1-30alkyl, C2-30-alkenyl, C2-30-alkynyl, C6-14-aryl and 5 to 14 membered heteroaryl, wherein C1-30-alkyl, C2-3o-alkenyl and C2-3o-alkynyl can be substituted with one or more substituents selected from the group consisting of halogen, phenyl, O—C1-20-alkyl, O—C2-20-alken
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: June 7, 2022
    Assignee: Clap Co., Ltd.
    Inventors: Fabien Nekelson, Fulvio Giacomo Brunetti, Iori Doi, Thomas Weitz, Szehui Chua, Michael Eustachi
  • Patent number: 11355714
    Abstract: The present invention relates to compounds comprising a heterocyclic group substituted with a fluoranthene group and a particular aromatic or heteroaromatic group. The compounds are suitable for use in electronic devices, in particular organic electroluminescent devices, comprising these compounds. In some embodiments, the compounds are used as matrix materials for phosphorescent or fluorescent emitters as well as a hole-blocking or an electron-transport layer.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: June 7, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Amir Hossain Parham, Tobias Grossmann, Jonas Valentin Kroeber
  • Patent number: 11355563
    Abstract: A display device includes a first substrate, an organic light emitting element on the first substrate and including a first electrode, an organic light emitting layer, and a second electrode, a pixel defining layer surrounding the first electrode, a thin film encapsulation layer, and a capping layer on the thin film encapsulation layer. The capping layer may include two reflective interfaces adjacent the light emission or pixel area spaced apart from one another in a plane view. The reflective interfaces may include a boundary between high and low refractive index materials and/or a reflective layer.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 7, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeongwoo Moon, Byounghee Park, Jinkoo Chung
  • Patent number: 11353734
    Abstract: A display device includes a base film including a first region and a plurality of second regions having the first region therebetween; an inorganic insulating film on the base film, the inorganic insulating film being in contact with the plurality of second regions of the base film; a plurality of first pixels overlapping the first region; and a plurality of second pixels overlapping the plurality of second regions with the inorganic insulating film being between the plurality of second pixels and the plurality of second regions. The inorganic insulating film is divided by the first region and is discontinuous between the plurality of second regions.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: June 7, 2022
    Assignee: Japan Display Inc.
    Inventor: Ikuo Matsunaga
  • Patent number: 11355567
    Abstract: A display device includes: a substrate; a first pixel unit disposed over the substrate and including at least two pixel areas emitting lights of different colors; a second pixel unit neighboring the first pixel unit and including at least two pixel areas emitting lights of different colors; a first opposite electrode disposed on an area corresponding to the first pixel unit; and a second opposite electrode disposed on an area corresponding to the second pixel unit, wherein the first pixel unit includes a first pixel area and a second pixel area that neighbor each other, the second pixel unit includes a third pixel area and a fourth pixel area that neighbor each other, and a first distance between the first pixel area and the second pixel area is less than a second distance between the third pixel area and the first pixel area.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: June 7, 2022
    Inventors: Kyuhwan Hwang, Dahee Jeong
  • Patent number: 11355725
    Abstract: A composite thin film includes N thin film layers stacked one over another in sequence from a first thin film layer to an N-th thin film layer. N is an integer satisfying 3?N?9. The N thin film layers are nano-ZnO thin films. A nano-ZnO particle size of the nano-ZnO thin films gradually increases or decreases from the first thin film layer to the N-th thin film layer.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: June 7, 2022
    Assignee: TCL TECHNOLOGY GROUP CORPORATION
    Inventor: Longjia Wu
  • Patent number: 11349102
    Abstract: An electronic device may include an organic light emitting display (OLED), a heat generating device, and a heat spreading device. The heat generating device may provide heat directly to the heat spreading device, and the heat spreading device is to dissipate the heat from the heat generating device and evenly heat the OLED and lower a driving voltage of the OLED to reduce power consumption of the OLED.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: May 31, 2022
    Assignee: Intel Corporation
    Inventors: Praveen Vishakantaiah, Zhiming J. Zhuang, Hong W. Wong
  • Patent number: 11347339
    Abstract: A display device includes a display module, a touch member, and a first driving substrate. The display module includes a display panel. The touch member is disposed on the display module. The first driving substrate is attached on substrate attachment portions of the touch member, the substrate attachment portions being provided near a first edge of the touch member near a first side of the display device. the first driving substrate is bent in a downward direction with respect to the display module. The display module includes a bending support structure disposed on a first edge of the display module near the first side, the bending support structure protruding outwardly beyond the substrate attachment portions of the touch member.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myoung Ha Jeon, Hyeon Jeong Oh, Ki Chang Lee
  • Patent number: 11349097
    Abstract: A display device includes a substrate including a display area and a peripheral area. A display element is disposed in the display area and is electrically connected to a thin film transistor. A power supply line is disposed in the peripheral area. An insulating layer covers a portion of the power supply line. A barrier layer is disposed on the insulating layer and includes a first side surface facing the display area and a second side surface facing away from the display area. At least one of the first side surface or the second side surface includes a concavo-convex surface. The barrier layer forms a step difference with respect to an upper surface of the insulating layer. An end of the insulating layer is positioned beyond the second side surface of the barrier layer on a side of the barrier layer facing away from the display area.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: May 31, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joonghyun Kim, Kyongtaeg Lee, Sangyoung Park, Kyungsuk Choi
  • Patent number: 11348993
    Abstract: An electronic device includes a flexible substrate and a conductive wire. The flexible substrate includes a first bending region and a side region connected to the first bending region. The conductive wire is disposed on the flexible substrate and includes a metal portion and a plurality of openings disposed in the metal portion. A ratio of a total width of the metal portion disposed in the first bending region to a total width of the metal portion disposed in the side region is in a range from 0.8 to 1.2, and a length of one of the openings in the first bending region is less than or equal to a length of one of the openings in the side region.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: May 31, 2022
    Assignee: InnoLux Corporation
    Inventors: Ya-Wen Lin, Chien-Chih Chen, Yen-Hsi Tu, Cheng-Wei Chang, Shu-Hui Yang
  • Patent number: 11349098
    Abstract: A display device according to an embodiment of the present invention includes: a substrate having a display region for displaying an image; a plurality of pixels located in the display region of the substrate; and a sealing layer covering the plurality of pixels, wherein the sealing layer includes a first inorganic material film, a second inorganic material film, a resin material layer, and a third inorganic material film in this order from the side where the pixels are arranged, and the second inorganic material film is in contact with the resin material layer, has a composition different from that of the first inorganic material film, and has a higher oxygen content than the first inorganic material film.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: May 31, 2022
    Assignee: Japan Display Inc.
    Inventor: Masamitsu Furuie
  • Patent number: 11349078
    Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dukki Kim, Jaekook Ha, Sehun Kim, Dongwoo Shin, Donghoon Kwak, Junwoo Park
  • Patent number: 11349101
    Abstract: An organic light emitting display device including a light extraction reduction preventing layer disposed between a display unit disposed on a substrate and an encapsulation layer for protecting the display unit, which improves light emission efficiency by reducing an amount of light dissipating while light generated from an emission layer of the display unit is extracted to the outside.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: May 31, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seung-Yong Song
  • Patent number: 11347334
    Abstract: An array substrate, a method for fabricating the same, and a display device are provided. The array substrate includes: a base substrate; touch electrode wiring including a first conductive layer and a second conductive layer, where the first conductive layer is between the base substrate and the second conductive layer, the second conductive layer includes at least one first via hole to expose the first conductive layer, and the first conductive layer has a higher electrical conductivity than that of the second conductive layer; a planarization layer on the second conductive layer, where the planarization layer includes at least one first touch electrode contact hole; and touch electrode on the planarization layer, where the touch electrode is connected with the first conductive layer through the first touch electrode contact hole and the first via hole.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: May 31, 2022
    Assignees: Ordos Yuansheng Optoelectronics Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Cenhong Duan, Dawei Shi, Fengguo Wang, Feng Li, Hong Liu, Xinguo Wu, Lu Yang, Wentao Wang, Zifeng Wang, Bo Ma, Yuanbo Li, Zhixuan Guo, Jing Zhao, Haiqin Liang
  • Patent number: 11345687
    Abstract: The present invention describes dibenzofuran compounds substituted by carbazole compounds, especially for use as triplet matrix materials in organic electroluminescent devices. The invention further relates to a process for preparing the compounds of the invention and to electronic devices comprising these.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 31, 2022
    Assignee: MERCK PATENT GMBH
    Inventors: Amir Parham, Thomas Eberle, Anja Jatsch, Tobias Grossmann, Jonas Kroeber, Dominik Joosten, Caroline Wern
  • Patent number: 11341907
    Abstract: There is provided an organic light-emitting diode drive circuit comprising a switch transistor (T1), a drive transistor (T2), a storage capacitor (C), and an organic light-emitting diode (OLED), wherein the switch transistor (T1) uses an inorganic semiconductor transistor, and the drive transistor (T2) uses an organic semiconductor transistor. A display screen adopting the drive circuit as a unit pixel has the property of uniform brightness. In addition, there is provided a method of fabricating the drive circuit and a display device using the drive circuit.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: May 24, 2022
    Assignee: CHANGCHUN FLEXIBLE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Xiaodong Guo
  • Patent number: 11342363
    Abstract: An array substrate is provided, which includes a flexible substrate, a driving circuit layer and at least one layer of a bending material. The driving circuit layer is disposed on a side of the flexible substrate, at least one bending material layer is disposed in the driving circuit layer. The bending performance of the array substrate is enhanced by providing at least one bending material layer in the driving circuit layer.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: May 24, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Yamei Bai
  • Patent number: 11342399
    Abstract: An array substrate may include a dielectric layer (1), a plurality of pixel units (2) on the dielectric layer (1), auxiliary light emitting elements (3), and a fingerprint recognition layer (4) on a side of the dielectric layer (1) opposite from the pixel units (2). Each of the pixel units (2) may comprise transparent display elements (21). The fingerprint recognition layer (4) may comprise fingerprint recognition elements (41). The fingerprint recognition elements (41) may be configured to receive light emitted by the auxiliary light emitting elements (3) and reflected by a touch control body (10) to identify fingerprint information.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: May 24, 2022
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhijie Ye, Wenbin Jia, Xinxin Wang, Rui Peng, Yikun Dou, Yue Hu
  • Patent number: 11342388
    Abstract: An organic light-emitting display apparatus includes a substrate; a pixel electrode over the substrate; a pixel-defining layer including an opening that exposes at least a portion of the pixel electrode; an intermediate layer, which is over the portion of the pixel electrode exposed by the opening and includes an organic emission layer; a counter electrode over the intermediate layer; and an encapsulating structure, which is over the counter electrode and includes at least one inorganic layer and at least one organic layer, and the at least one organic layer includes quantum dots and is in the opening.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Wonmin Yun, Yisu Kim, Eungseok Park, Byoungduk Lee, Yunah Chung, Yoonhyeung Cho, Yongchan Ju
  • Patent number: 11341896
    Abstract: An electroluminescent display device comprises a pixel including a plurality of subpixels; a plurality of power lines for providing a power voltage to the plurality of subpixels; a data line for providing data signals to the plurality of subpixels; a plurality of gate lines for providing gate signals to the plurality of subpixels; and a reference node line for connecting a plurality of reference nodes included in the plurality of subpixels, wherein each of the subpixels comprises a light emitting diode and a subpixel driving circuit for controlling light emission of the light emitting diode, and wherein the subpixel driving circuit provides a driving current without including a high potential voltage to the light emitting diode as a reference voltage that is applied from one of the plurality of power lines to the reference node included in the subpixel driving circuit, and some of the plurality of subpixels include a compensation transistor connected to the reference node receiving the reference voltage.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: May 24, 2022
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hoyoung Ko, JuhnSuk Yoo
  • Patent number: 11342395
    Abstract: An organic light-emitting diode display may have thin-film transistor circuitry formed on a substrate. The display and substrate may have rounded corners. A pixel definition layer may be formed on the thin-film transistor circuitry. Openings in the pixel definition layer may be provided with emissive material overlapping respective anodes for organic light-emitting diodes. A cathode layer may cover the array of pixels. A ground power supply path may be used to distribute a ground voltage to the cathode layer. The ground power supply path may be formed from a metal layer that is shorted to the cathode layer using portions of a metal layer that forms anodes for the diodes, may be formed from a mesh shaped metal pattern, may have L-shaped path segments, may include laser-deposited metal on the cathode layer, and may have other structures that facilitate distribution of the ground power supply.
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: May 24, 2022
    Assignee: Apple Inc.
    Inventors: Chin-Wei Lin, Stephen S. Poon, Warren S. Rieutort-Louis, Cheng-Ho Yu, ChoongHo Lee, Doh-Hyoung Lee, Ting-Kuo Chang, Tsung-Ting Tsai, Vasudha Gupta, Younggu Lee
  • Patent number: 11342406
    Abstract: A display device includes a substrate, a circuit element layer on the substrate, a display element layer on the circuit element layer, a sealing film on the display element layer, an oxide film on the sealing film, a barrier metal layer on the oxide film, and a wiring layer on the barrier metal layer, wherein a surface of the sealing film in contact with the oxide film has concave/convexities, and the barrier metal layer is formed by titanium nitride. A height of the concave/convexities of the surface of the sealing film may be less than 30 nm. A thickness of the oxide film may be 5 nm or less.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: May 24, 2022
    Assignee: Japan Display Inc.
    Inventor: Nobuto Managaki
  • Patent number: 11342513
    Abstract: A compound having the formula Ir(LA)(LB), where LA has a structure of Formula I and LB is a bidentate ligand is disclosed. In the structure of Formula I, rings A, B, C, and D are each independently 5- or 6-membered carbocyclic or heterocyclic rings; each of Z1 to Z8 is C or N; LA has at least one Ir—C bond; L is CR or N; each R1 R2, R3, and R4 is independently hydrogen or one of the preferred general substituents; and any two substituents may be joined or fused together to form a ring. Organic light emitting devices, consumer products, and formulations containing the compounds are also disclosed.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 24, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Jui-Yi Tsai, Alexey Borisovich Dyatkin, Zhiqiang Ji, Pierre-Luc T. Boudreault, Miguel A. Esteruelas, Llorenç Benavent, Ana M. Lopez, Enrique Oñate