Solid-state Type Patents (Class 313/498)
  • 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: 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: 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: 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: 10910350
    Abstract: A structure of a semiconductor array comprises multiple semiconductor units, an isolation layer and a decomposed or buffer unit. Multiple semiconductor units combined the semiconductor array. The isolation layer coated each semiconductor unit. The decomposed or buffer unit coated the isolation layer and filled between each semiconductor unit to enhance structure of the semiconductor units. Wherein, the isolation layer protected by edge of the semiconductor units and the decomposed or buffer unit.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: February 2, 2021
    Inventors: Chen-Fu Chu, Chen-Hsien Chu
  • 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
  • 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: 10903283
    Abstract: A display device includes a substrate with a display region and a non-display region. First to third pixels are in the display region and have emission regions to emit light from corresponding light emitting elements. Pixel circuit areas in the first to third pixels drive the light emitting elements. A dummy pattern is in a non-emission region, except the emission region. The dummy pattern extends along the extending direction of one pixel among the first to third pixels. A thin film encapsulation layer covers the dummy pattern and the light emitting element.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Jin Baek Choi
  • Patent number: 10903399
    Abstract: A method for manufacturing a light emitting device includes: mounting a first light emitting element whose emission peak wavelength is in a range of 430 nm to 490 nm and a second light emitting element whose emission peak wavelength is in a range of 490 nm to 570 nm; and providing a light transmitting member including a red phosphor and at least one of a green phosphor of which a half width of an emission spectrum is not more than 45 nm and a blue phosphor of which a half width of an emission spectrum is not more than 60 nm. The step of providing the light transmitting member includes adding at least one of a predetermined amount of the green phosphor and a predetermined amount of the blue phosphor based on the emission peak wavelength of the second light emitting element.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: January 26, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Seitaro Akagawa, Kazuki Koda
  • Patent number: 10885428
    Abstract: A neural device to which a conditioned response function is imparted and a driving method thereof are disclosed. Quantum dots and a polymer insulating layer are formed between upper and lower electrodes. Conductive filaments are formed at interfaces between the quantum dots and the polymer insulating layer. When a positive pulse, which is an unconditioned stimulus signal, is applied, the conductive filaments are formed, and a low resistance state is implemented. As the number of applications of a negative pulse, which is a conditioned stimulus signal, increases, the neural device is switched from a high resistance state to the low resistance state. Through this, the neural device having learning ability for the conditioned stimulus signal may be implemented and driven.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: January 5, 2021
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Tae Whan Kim, Chaoxing Wu, Dae Uk Lee, Hwan Young Choi
  • Patent number: 10879429
    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: May 29, 2019
    Date of Patent: December 29, 2020
    Assignee: NICHIA CORPORATION
    Inventors: Kenji Asai, Kazushige Fujio
  • Patent number: 10862012
    Abstract: A method of manufacturing a light emitting device includes: providing a wiring substrate on which a light emitting element and a frame body surrounding the light emitting element are disposed, the frame body having a corner portion in a top view; forming a support column member in contact with at least one of an inner peripheral surface and a top surface of the corner portion of the frame body; and forming a light-transmissive member at least partially in contact with the frame body and the support column member with at least a part of the light-transmissive member being positioned above the frame body and the support column member.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: December 8, 2020
    Assignee: NICHIA CORPORATION
    Inventor: Junji Takeichi
  • Patent number: 10833232
    Abstract: A light-emitting diode (LED) includes: a base having an upward-opening accommodating space; an LED chip disposed at the base, and arranged in the accommodating space; a packaging adhesive covering the LED chip; a lens disposed over the packaging adhesive, wherein: the lens has a first surface proximal to the packaging adhesive; the first surface has: a first subsurface at a center area with a substantially spherical or parabolic shape; a second subsurface with a substantially ring shape and surrounding the first subsurface and extending downward with an increasing diameter; a third subsurface with a substantially ring shape and surrounding the second subsurface, having a top ring edge and extending downward with a decreasing diameter; and a fourth subsurface with a substantially planar shape and surrounding the top ring edge of the third subsurface and connected with the base.
    Type: Grant
    Filed: September 30, 2018
    Date of Patent: November 10, 2020
    Assignee: XIAMENC SANAN OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xing-Long Li, Chi-Wei Liao, Chen-Ke Hsu, Weng Tack Wong
  • Patent number: 10831055
    Abstract: One of pixel electrodes and a common electrode of the liquid crystal display apparatus is a first electrode, and the other one of the pixel electrodes and the common electrode is a second electrode which is disposed between the first electrode and a liquid crystal layer. The second electrode includes linear portions which are formed on each subpixel. Each linear portion includes a bent portion which changes an extension direction of the linear portion. A light shielding layer overlaps a gate wire, a source wire and the bent portion formed on a first subpixel included in a plurality of subpixels in a plan view, and makes an aperture ratio of the first subpixel lower than an aperture ratio of a second subpixel included in a plurality of subpixels and belonging to a pixel identical to a pixel to which the first subpixel belongs.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 10, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Takuya Higashi
  • Patent number: 10825883
    Abstract: An organic EL display device according to an embodiment of the present invention includes: an ITO layer divided and disposed in a region where a pixel opening is formed; a capacitance insulating film disposed on the ITO layer; a lower electrode disposed on the capacitance insulating film; an organic layer disposed on the lower electrode; an upper electrode disposed on the organic layer; and a planarizing member disposed so as to soften a step of a step part of the lower electrode.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 3, 2020
    Assignee: Japan Display Inc.
    Inventor: Naoki Tokuda
  • Patent number: 10818856
    Abstract: The present application provides a method for fabricating a thin film transistor, a method for fabricating an array substrate, and a display apparatus. A method for fabricating a thin film transistor including: providing a substrate; covering an isolating layer on the substrate; coating an active layer precursor solution on the isolation layer; forming an active layer thin film by the active layer precursor solution; dividing the active layer thin film into a small module active layer, the mobility of the active layer of the thin film transistor is increased, and to drive the quantum dot light emitting device of the array substrate through the thin film transistor with high mobility to improve the display luminescence performance of the display apparatus.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: October 27, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Huafei Xie
  • Patent number: 10818235
    Abstract: An EL display apparatus is provided. A display screen includes pixels arranged in a matrix, with each pixel including an EL device and a pixel circuit. A source driver circuit is configured to output an analog video signal to each pixel. A gate driver circuit is on at least one side of the display screen, with the gate driver circuit including first and second gate driver circuits. Each pixel includes a driving transistor, a first switch transistor, and a second switch transistor. A gate terminal of the first switch transistor is connected to a first gate signal line of the first gate driver circuit, and a gate terminal of the second switch transistor is connected to a second gate signal line of the second gate driver circuit. The first and second switch transistors are on/off controlled, independently, by the first and second gate driver circuits.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 27, 2020
    Assignee: JOLED INC.
    Inventors: Hiroshi Takahara, Hitoshi Tsuge
  • Patent number: 10809847
    Abstract: A touch screen having touch circuitry integrated into a display pixel stackup. The touch screen can include a transistor layer, an LED layer and a first layer. The first layer can operate as an LED cathode during a display phase and as touch circuitry during a touch sensing phase. The transistor layer can be at least partially utilized for transitioning between the display phase and the touch sensing phase. The touch screen can be fabricated to reduce or eliminate damage to the LED layer.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: October 20, 2020
    Assignee: Apple Inc.
    Inventors: Vasudha Gupta, Shih Chang Chang, Young-Bae Park, Ting-Kuo Chang
  • Patent number: 10794566
    Abstract: A light emitting device includes a light emitting element and a light flux controlling member. The light flux controlling member includes an incidence surface and an emission surface, and is disposed such that, in a cross section of the light emitting device, light emitted at least ?1=81° from a light emission center of the light emitting element is incident on the rear surface of the light flux controlling member, and the emission surface is formed such that, in the cross section of the light emitting device, a curve of a graph with an abscissa of ?1 and an ordinate of ?2 includes an inflection point, wherein ?2 is an angle between a line orthogonal to the optical axis and a tangent to the emission surface at a point P, the point P being an arrival point of light emitted from the light emission center at angle ?1.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: October 6, 2020
    Assignee: Enplas Corporation
    Inventors: Yasuyuki Fukuda, Kakeru Nakamura
  • Patent number: 10796814
    Abstract: Insulated winding wires, winding wire articles, and associated formation methods are described. An insulated winding wire may include a conductor and insulation formed around the conductor. In certain embodiments, the insulation may include a first layer including a first parylene material and a second layer including a second parylene material different from the first parylene material. In other embodiments, the insulation may include one or more layers containing parylene formed over base insulation.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 6, 2020
    Assignee: Essex Group LLC
    Inventors: Allan R. Knerr, David Marshall Cain
  • Patent number: 10788190
    Abstract: A light source unit provides enhanced control of a colour shift of white light reflected by a retro-reflector. The light source unit includes a pump light source, which emits laser pump light, a phosphor, which converts the laser pump light into white light, a retro-reflector, which has an output aperture that allows emission of part of the white light, the retro-reflector reflecting another part of the white light back to the phosphor, and scattering particles, which are adjusted to increase a blue light ratio of the white light.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 29, 2020
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mattia Signoretto, Karl Peter Welna, Valerie Berryman-Bousquet, Koji Takahashi
  • Patent number: 10784452
    Abstract: The present disclosure provides a flexible substrate, a method for manufacturing the same, a method for manufacturing a display panel and a display device. The flexible substrate has sub-pixel regions and an inter-subpixel region between adjacent sub-pixel regions. The flexible substrate includes a support layer including a plurality of micro-grooves, and the plurality of micro-grooves are on one side of the support layer and in the inter-subpixel region.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: September 22, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Mingche Hsieh, Jing Yang, Yuanzheng Guo
  • Patent number: 10777768
    Abstract: The present application discloses an organic light emitting diode assembly. The organic light emitting diode assembly includes a first base substrate; an organic light emitting diode on the first base substrate; and a second base substrate on a side of, the organic light emitting diode distal to the first base substrate. The organic light emitting diode and the second base substrate are spaced apart from each other by a tunable gap. A gap distance of the tunable gap is tunable such that a color of light emitted from the organic light emitting diode assembly is tunable in response to a change in the gap distance.
    Type: Grant
    Filed: November 23, 2017
    Date of Patent: September 15, 2020
    Assignees: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.
    Inventors: Weilong Zhou, De Yuan
  • Patent number: 10775953
    Abstract: A in-cell touch display device includes first sensing lines, second sensing lines, first touch electrodes electrically connected to the first sensing lines respectively, second touch electrodes electrically connected to the second sensing lines respectively, first and second switches, and first and second touch testing pads. The first and second switches are disposed in a non-display area, in which the first switches have first terminals electrically connected to the first sensing lines, control terminals electrically connected to each other, and second terminals electrically connected to each other. The second switches have first terminals electrically connected to the second sensing lines, control terminals electrically connected to each other, and second terminals electrically connected to each other. The first touch testing pad is electrically connected to the second terminals of the first switches. The second touch testing pad is electrically connected to the second terminals of the second switches.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 15, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventor: Cheng-Yen Yeh
  • Patent number: 10770534
    Abstract: An active matrix organic light-emitting diode display panel is provided and includes a first metal layer, an interlayer dielectric layer, a second metal layer, a planarization layer and a transparent conductive layer sequentially located on a substrate. Second via holes are defined in the planarization layer. The transparent conductive layer is connected to the second metal layer through the second via holes. A contact surface of the second metal layer and the transparent conductive layer is a waved surface.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: September 8, 2020
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Caiqin Chen
  • Patent number: 10770621
    Abstract: A semiconductor wafer has, on one surface of a sapphire substrate, an element layer including an n-type layer, an active layer, and a p-type layer, and is characterized in that the surface of the element layer is bent in a convex way, and the curvature thereof is 530-800 km?1.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 8, 2020
    Assignee: Stanley Electric Co., Ltd.
    Inventor: Toshiyuki Obata
  • Patent number: 10763414
    Abstract: A semiconductor light-emitting device includes a substrate having a base, a conductive layer and an insulating layer, a semiconductor light-emitting element and a resin member. The base has a pair of base first side surfaces and a pair of base third side surfaces. The conductive layer includes a front-surface segment and a side-surface segment. The front surface segment includes a front-surface first part. The insulating layer includes an insulating-layer first part and an insulating-layer second part. The resin member covers the insulating-layer first part and the insulating-layer second part of the insulating layer. A first thickness of the insulating-layer first part is greater than a second thickness of the insulating-layer second part.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 1, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Tomoichiro Toyama, Hideaki Anzai, Kenya Hashimoto, Ryo Yatagai
  • Patent number: 10756305
    Abstract: Disclosed is an electroluminescence display apparatus for increasing a micro-cavity effect and preventing a device characteristic from being reduced. The electroluminescence display apparatus including an active area where a plurality of pixels are provided includes a substrate, a circuit element layer on the substrate, a first electrode on the circuit element layer, a light emitting layer on the first electrode, a second electrode on the light emitting layer, and a first light compensation layer between the light emitting layer and the second electrode. Since the first light compensation layer having a refractive index lower than that of the light emitting layer is disposed between the light emitting layer and the second electrode, light may be repeatedly reflected thereby increasing light efficiency, which in turn increases the micro-cavity effect.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 25, 2020
    Assignee: LG DISPLAY CO., LTD.
    Inventors: HakMin Lee, HeeJin Kim, SungSoo Park
  • Patent number: 10756232
    Abstract: Disclosed is a semiconductor device comprising a thin film transistor and wirings connected to the thin film transistor, in which the thin film transistor has a channel formation region in an oxide semiconductor layer, and a copper metal is used for at least one of a gate electrode, a source electrode, a drain electrode, a gate wiring, a source wiring, and a drain wiring. The extremely low off current of the transistor with the oxide semiconductor layer contributes to reduction in power consumption of the semiconductor device. Additionally, the use of the copper metal allows the combination of the semiconductor device with a display element to provide a display device with high display quality and negligible defects, which results from the low electrical resistance of the wirings and electrodes formed with the copper metal.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 25, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Miyuki Hosoba, Suzunosuke Hiraishi
  • Patent number: 10756154
    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: May 21, 2018
    Date of Patent: August 25, 2020
    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: 10747036
    Abstract: According to one embodiment, a display device includes a flexible base, a display area, first lines arranged in a first direction, pixel electrodes, and a first inorganic insulating layer contacting the lines. The display area includes a first area in which the lines are arranged in the first direction at a first pitch and a second area in which the lines are arranged in the first direction at a second pitch greater than the first pitch, and the second area is located between the first area and an edge of the base in the first direction. In the second area, the first inorganic insulating layer comprises a first slit extending along the lines between adjacent lines.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: August 18, 2020
    Assignee: Japan Display Inc.
    Inventor: Shigesumi Araki
  • Patent number: 10748975
    Abstract: A display device includes a substrate with a first subpixel area and a second subpixel area adjacent to one side of the first subpixel area; an insulating layer on the substrate having a first recessed portion on the first subpixel area, a second recessed portion on the second subpixel area and a convex portion between the first recessed portion and the second recessed portion; a reflective electrode on the insulating layer including first and second reflective electrodes on the first and second recessed portions, respectively; a first electrode including a first sub electrode on the first reflective electrode and a second sub electrode on the second reflective electrode; an organic light emitting layer on the first electrode; a bank provided between the first subpixel area and the second subpixel area while covering an end of the first electrode; a second electrode on the organic light emitting layer; and a light path change structure on the second electrode while being overlapping the bank.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: August 18, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Wooram Youn, Jaehyung Yu
  • Patent number: 10743386
    Abstract: A display device includes a pixel including a plurality of sub-pixels. Each of the plurality of sub-pixels includes: a light-emission region; and a non-light-emission region other than the light-emission region. The light-emission region includes one or more effective light-emitting parts in which a first electrode, a light emitting layer, and a second electrode are stacked in order, and a light guide provided on side of the one or more effective light-emitting parts on which light is extracted.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: August 11, 2020
    Assignee: JOLED INC.
    Inventors: Kaoru Abe, Kazuma Teramoto, Toshiaki Imai, Jiro Yamada, Takahide Ishii, Hideki Kobayashi
  • Patent number: 10734611
    Abstract: The present disclosure relates to an organic light emitting diode display device including: a substrate having an emitting area and a non-emitting area; an insulating layer on the substrate, the insulating layer including a plurality of convex portions, a plurality of connecting portions and at least one wall in the emitting area, a height of the at least one wall is greater than a height of the plurality of convex portions; a first electrode on the substrate; an emitting layer on the first electrode; and a second electrode on the emitting layer, the first electrode, the emitting layer and the second electrode constituting a light emitting diode.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: August 4, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun-Soo Lim, Kang-Ju Lee, Soo-Kang Kim, Won-Hoe Koo, Min-Geun Choi
  • Patent number: 10727446
    Abstract: The present disclosure provides an OLED array substrate comprising a plurality of pixel units each including a plurality of sub-pixel units, each of the sub-pixel units comprising a light-emitting portion, each light-emitting portion having a first electrode, a second electrode and an organic light-emitting layer sandwiched between the first electrode and the second electrode, wherein the sub-pixel unit further comprises an organic film layer and a semi-reflecting mirror layer disposed successively on a light exit side of the second electrode, the first electrode comprises a reflective layer, the second electrode is a transparent electrode, a structure between the first electrode and the semi-reflecting mirror layer constitutes a microcavity structure, and organic film layers of the sub-pixel units of different colors of each pixel unit have different thicknesses. The present disclosure further provides an OLED display panel, an OLED display device, and a method of manufacturing the array substrate.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 28, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Li, Youngsuk Song, Jianye Zhang