With Particular Phosphor Or Electrode Material Patents (Class 313/503)
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Patent number: 10705271Abstract: A display device includes: a display panel; and a color conversion panel overlapping the display panel, wherein the color conversion panel includes a red color conversion layer and a green color conversion layer including a semiconductor nanocrystal, and a transmissive layer; a red color filter overlapping the red color conversion layer; a green color filter overlapping the green color conversion layer; and a blue color filter overlapping the transmissive layer and a light blocking member, and the light blocking member includes at least one of a blue dye and a blue pigment.Type: GrantFiled: June 25, 2018Date of Patent: July 7, 2020Assignee: Samsung Display Co., Ltd.Inventors: Soo Dong Kim, Sung Woon Kim, Jang Wi Ryu, Kyoung Won Park
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Patent number: 10698146Abstract: Disclosed herein are an anti-reflection polarizing film and a display device having the same. The anti-reflection polarizing film includes: a polarization layer configured to linearly polarize external light; a phase-difference layer configured to circularly polarize the light transmitted through the polarization layer; a first support layer between the polarization layer and the phase-difference layer, configured to protect the polarization layer; and a second support layer facing the first support layer with the polarization layer therebetween, configured to protect the polarization layer, wherein a part of a particular layer among the layers facing the second support layer is extended towards an edge.Type: GrantFiled: August 24, 2016Date of Patent: June 30, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Heechul Lim, GyuHyeong Han
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Patent number: 10693082Abstract: Indolocarbazole materials with substitution attached at specific positions and methods to synthesize the same are disclosed. The materials are used as hosts for improving performance of organic electroluminescence devices.Type: GrantFiled: March 8, 2016Date of Patent: June 23, 2020Assignee: Universal Display CorporationInventors: Zhiqiang Ji, Lichang Zeng, Alexey Borisovich Dyatkin, Chuanjun Xia
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Patent number: 10693108Abstract: A light extraction pattern is disposed in each hole of a first electrode, or a first electrode including round portions and pattern portions is disposed so that light trapped in an emission layer can be output uniformly. In this way, the light extraction efficiency can be effectively improved, and occurrence of a black area can be prevented.Type: GrantFiled: August 22, 2018Date of Patent: June 23, 2020Assignee: LG Display Co., Ltd.Inventors: Jin-Tae Kim, Won-Hoe Koo, Yong-Hoon Choi
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Patent number: 10686016Abstract: An organic light emitting display panel and apparatus, and a manufacturing method therefor are provided. The organic light emitting display panel includes a plurality of light emitting units, the light emitting unit includes an anode, a first auxiliary functional structure, a light emitting structure and a cathode, the anode, the first auxiliary functional structure, the light emitting structure and the cathode are successively laminated, and the first auxiliary functional structures of different light emitting units are arranged separate from one another, the anodes of different light emitting units are arranged separate from one another, and the light emitting structures of different light emitting units are arranged separate from one another.Type: GrantFiled: June 1, 2017Date of Patent: June 16, 2020Assignees: SHANGHAI TIANMA AM-OLED CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Zhihong Lei, Jinghua Niu, Xiangcheng Wang, Lei Lv, Shuang Cheng
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Patent number: 10672328Abstract: A light emitting diode (LED) display apparatus includes first to third data lines, gate lines, a first color sub-pixel unit and second color sub-pixel units. The gate lines include (N?1)th, Nth and (N+1)th gate lines. The first color sub-pixel unit includes a first color LED electrically coupled to the first data line and the (N?1)th and Nth gate lines. When the (N?1)th or Nth gate line is enabled, the first color LED is turned on. The second color sub-pixel unit is electrically connected to the second data line, and includes a second color LED. The second color sub-pixel units are electrically coupled to the gate lines, respectively. When each gate line is enabled, the corresponding second color LED is turned on. A light emitting area of the first color sub-pixel unit is greater than a light emitting area of each second color sub-pixel unit.Type: GrantFiled: April 30, 2019Date of Patent: June 2, 2020Assignee: Au Optronics CorporationInventors: Hsien-Chun Wang, Ya-Jung Wang, Sung-Yu Su
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Patent number: 10672855Abstract: A display device includes, on a substrate, light emitting elements each formed by sequentially stacking a first electrode layer, an organic layer including a light emission layer, and a second electrode layer and arranged in first and second directions which cross each other, a drive circuit including drive elements that drive light emitting elements, and a wiring extending in the first direction, and an insulating layer disposed in a gap region sandwiched by the light emitting elements neighboring in the second direction and having a recess or a projection. The wiring is disposed in an overlap region overlapping with the recess or the projection in the insulating layer in a thickness direction, in the gap region, and the second electrode layers in the light emitting elements neighboring in the second direction are separated from each other by the recess or the projection in the insulating layer.Type: GrantFiled: August 21, 2018Date of Patent: June 2, 2020Assignee: Sony CorporationInventor: Hiroshi Sagawa
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Patent number: 10651417Abstract: A display substrate including a base substrate including a plurality of pixel areas, each of the plurality of pixel areas including an emission area and a transmission area, a pixel circuit layer disposed in the emission area and including at least one transistor, a pixel electrode disposed on the pixel circuit layer and connected to the pixel circuit layer, a hole injection layer selectively disposed on the pixel electrode in the emission area, an emission layer disposed on the hole injection layer of the emission area, an electron injection layer disposed on the base substrate on which the emission layer is disposed; and a common electrode disposed on the base substrate on which the electron injection layer is disposed.Type: GrantFiled: July 18, 2019Date of Patent: May 12, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jinkoo Chung, Seong-Min Kim, Hye Hyang Park, Jinhyun Park
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Patent number: 10651352Abstract: A display device is provided. The display device includes a plurality of pixels. At least one of the pixels includes a semiconductor device having a light-emitting area, a first light conversion layer disposed on the semiconductor device and a first scattering layer disposed on the semiconductor device. The first scattering layer is disposed on the first light conversion layer.Type: GrantFiled: September 12, 2018Date of Patent: May 12, 2020Assignee: INNOLUX CORPORATIONInventors: Chun-Hsien Lin, Geng-Fu Chang, Jui-Feng Ko, Tsau-Hua Hsieh, Shu-Ming Kuo
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Patent number: 10644265Abstract: An organic light emitting display device has an optical multilayer film on an organic light emitting diode. The organic light emitting display device includes an organic light emitting element with a cathode, an anode, and an organic light emitting layer, and an optical multilayer film on the organic light emitting element. The optical multilayer film is constructed such that a full width at half maximum of light emitted from the organic light emitting element is larger than a full width at half maximum of light emitted from a structure in which the optical multilayer film is not used. The color shift depending on a viewing angle of the organic light emitting display device may be reduced to improve efficiency of the organic light emitting element.Type: GrantFiled: October 12, 2016Date of Patent: May 5, 2020Assignee: LG Display Co., Ltd.Inventors: Seonghee Noh, YoungNam Lim, SangHo Lee, DaeWon Ryu
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Patent number: 10636632Abstract: Improved deposition of optoelectronically active perovskite materials is provided with a two step process. In the first step, precursors are deposited on a substrate. In the second step, the deposited precursors are exposed to an atmospheric pressure plasma which efficiently cures the precursors to provide the desired perovskite thin film. The resulting films can have excellent optical properties combined with superior mechanical properties.Type: GrantFiled: January 18, 2018Date of Patent: April 28, 2020Assignee: The Board of Trustees of the Leland Stanford Junior UniversityInventors: Florian Hilt, Michael Q. Hovish, Nicholas Rolston, Reinhold H. Dauskardt
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Patent number: 10629839Abstract: A lighting apparatus of the present disclosure divides a plurality of pixels and configures an auxiliary electrode which transmits a signal to the first substrate with a metal nano ink so that the light which is reflected from the interface between the first substrate and an external air layer to be incident is reflected and scattered again to improve the luminous efficiency of the lighting apparatus.Type: GrantFiled: July 11, 2018Date of Patent: April 21, 2020Assignee: LG Display Co., Ltd.Inventors: JungEun Lee, NamKook Kim, TaeOk Kim
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Patent number: 10620476Abstract: An image display apparatus includes: a display panel; a back frame including a flat portion having a substantially flat surface; light sources spaced substantially evenly apart in the flat portion; and a luminance-equalizing sheet supported at a distance from the light sources by support pins. The luminance-equalizing sheet includes through holes that transmit light from the light sources toward the display panel. The through holes are arranged in a predetermined pattern applied to blocks that are arranged in an array in the luminance-equalizing sheet and each of which faces a different one of the light sources. The predetermined pattern includes a first pattern and a second pattern. The first pattern is applied to at least some of outer blocks in contact with a periphery of the array, and the second pattern is applied to at least some of the blocks to which the first pattern is not applied.Type: GrantFiled: February 6, 2018Date of Patent: April 14, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventor: Toru Tanikawa
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Patent number: 10619094Abstract: Disclosed are an aluminate fluorescent material having a high light emission intensity, and a light emitting device using the same. The aluminate fluorescent material includes a composition represented by the following formula (I): X1pEutMgqMnrAlsOp+t+q+r+1.5s??(I) wherein X1 represents at least one element selected from the group consisting of Ba, Sr, and Ca; and p, q, r, s, and t each satisfy 0.5?p?1.0, 0?q<0.6, 0.4<r?0.7, 8.5?s?13.0, 0<t<0.3, 0.5<p+t?1.2, and 0.4<q+r?1.1.Type: GrantFiled: August 29, 2018Date of Patent: April 14, 2020Assignee: NICHIA CORPORATIONInventors: Kazuya Nishimata, Tomokazu Yoshida, Shoji Hosokawa
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Patent number: 10615373Abstract: The present application provides a substrate, an organic electronic device and a use thereof. The substrate of the present application has a structure comprising an electrode layer directly formed on the corrugated surface of the optical functional layer, and upon having formed an organic electronic device, can secure excellent functionality, for example, light extraction efficiency, and the like, together with stable drive of the element for a long time.Type: GrantFiled: May 23, 2017Date of Patent: April 7, 2020Assignee: LG CHEM, LTD.Inventors: Yong Nam Kim, Eun Byurl Cho, Yeon Keun Lee, Mun Kyu Joo, Jong Seok Kim
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Patent number: 10604409Abstract: The disclosure relates to a method for making a carbon nanotube structure, comprising the following steps of: providing a carbon nanotube array formed on a surface of a substrate; drawing a first carbon nanotube film from the carbon nanotube array, wherein the first carbon nanotube film comprises a first end connected to the carbon nanotube array and a second end opposite to the first end; providing an elastic rod and fixing the second end of the first carbon nanotube film to a first portion of the elastic rod, wherein the elastic rod is curved away from the carbon nanotube array; and rotating the elastic rod around a rotational axis which coincides with a center axis of the elastic rod, wherein the elastic rod is curved away from the carbon nanotube array during rotation the elastic rod.Type: GrantFiled: April 27, 2017Date of Patent: March 31, 2020Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Jiang-Tao Wang, Kai-Li Jiang, Shou-Shan Fan
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Patent number: 10608182Abstract: A method of analyzing film on a substrate may comprise receiving three-dimensional data obtained from measurements of a plurality of pixels on a substrate, the plurality of pixels comprising one or more film layers; extracting a plurality of parameters based on the received three-dimensional data, the plurality of parameters comprising at least an average thickness for the film layers of the pixels, one or more area aperture ratios for the film layers of the pixels, and a pitch between pixels, wherein the extraction is based on a predetermined pattern for the pixels on the substrate; displaying a user interface comprising a graphical representation of one or more of the parameters for the one or more film layers of the one or more of the pixels; and dynamically modifying the graphical representation of the one or more parameters in response to user input of the displayed user interface, the dynamically modifying causing the displayed graphical images to appear as continuously changing.Type: GrantFiled: April 17, 2018Date of Patent: March 31, 2020Assignee: Kateeva, Inc.Inventors: Doris Pik-Yiu Chun, Ian David Parker
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Patent number: 10600984Abstract: A method for producing an organic EL device having an anode, a cathode, at least one organic functional layer disposed between the anode and the cathode, and a sealing layer, comprising a step of forming the anode, a step of forming the cathode, a step of forming the at least one organic functional layer and a step of forming the sealing layer, wherein the average concentration: A (ppm) of a sulfur oxide to which the organic EL device during production is exposed from initiation time of the step of forming the at least one organic functional layer until termination time of the step of forming the sealing layer and the exposure time thereof: B (sec) satisfy the formula (1-1): 0?A×B<2.2??(1-1).Type: GrantFiled: June 9, 2016Date of Patent: March 24, 2020Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masataka Iwasaki, Takaaki Okamoto
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Patent number: 10591137Abstract: An alumina-based ceramic wavelength converter is described having a surface layer containing a second phase of alumina, preferably as alumina crystallites. The surface layer is formed as a result of the sintering process used to form the bulk ceramic which is itself substantially transparent. The ceramic wavelength converter is combined with a light emitting diode to form a light emitting device. Preferably, the ceramic wavelength converter is comprised of an alumina-based phosphor represented by a general formula A3B5O12:Ce, wherein A is Y, Sc, La, Gd, Lu, or Tb and B is Al, Ga or Sc.Type: GrantFiled: September 26, 2013Date of Patent: March 17, 2020Assignee: OSRAM SYLVANIA INC.Inventors: John F. Kelso, Kathleen A. Lawson
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Patent number: 10585635Abstract: A display includes a plurality of pixel chips, chixels, provided on a substrate. The chixels and the light emitters thereon may be shaped, sized and arranged to minimize chixel, pixel, and sub-pixel gaps and to provide a seamless look between adjacent display modules. The substrate may include light manipulators, such as filters, light converters and the like to manipulate the light emitted from light emitters of the chixels. The light manipulators may be arranged to minimize chixel gaps between adjacent chixels.Type: GrantFiled: November 15, 2018Date of Patent: March 10, 2020Assignee: Nanolumens Acquisition, Inc.Inventor: Richard C. Cope
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Patent number: 10584281Abstract: A method for making a light emitting structure including: determine desired light emitting characteristics; prepare a plurality of nanostructure composites, wherein the plurality of nanostructure composites are configured to provide the desired light emitting characteristics and are configured with predetermined excitation characteristics; selecting a light emission source based on the predetermined excitation characteristics; providing a substrate for the plurality of nanostructure composites; and applying the plurality of nanostructure composites to the substrate such that the plurality of nanostructure composites receive light from the light emission source.Type: GrantFiled: October 14, 2015Date of Patent: March 10, 2020Inventor: Pavle Radovanovic
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Patent number: 10580991Abstract: This application relates to a flexible display screen, comprising: a silicone substrate; a first electrode of polyacrylamide-lithium chloride hydrogel above the silicone substrate; a zinc sulfide-silicone light-emitting layer above the first electrode of polyacrylamide-lithium chloride hydrogel; and a second electrode of polyacrylamide-lithium chloride hydrogel above the zinc sulfide-silicone light-emitting layer.Type: GrantFiled: August 30, 2017Date of Patent: March 3, 2020Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.Inventors: Huaxu Bao, Minghui Zhang, Xiaofeng Liu, Xiaojian Yang, Shumeng Sun, Inho Park, Weitao Chen
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Patent number: 10576772Abstract: A gravure printing roll that enables printing of fine dots with a size close to that of cells and enables printing on a print subject, such as a printing substrate, without changing the appearance of the print subject. The gravure printing roll includes: a gravure printing roll body; and cells formed in a peripheral surface of the gravure printing roll body. Each of the cells has an opening with a ratio between a dimension in a circumferential direction of the gravure printing roll body and a dimension in an axial center direction of the gravure printing roll body (dimension in the circumferential direction/dimension in the axial center direction) being 1.15 to 7, and have an opening area of 3900 ?m2 or smaller.Type: GrantFiled: February 3, 2016Date of Patent: March 3, 2020Assignees: UACJ CORPORATION, UACJ FOIL CORPORATION, THINK LABORATORY CO., LTD.Inventors: Hiroshi Nishio, Yukie Kitada, Tatsuo Shigeta
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Patent number: 10574950Abstract: A wavelength conversion device includes: a substrate; and a phosphor layer on the substrate. The phosphor layer includes: a base material; and a first phosphor and a second phosphor each of which emits fluorescent light when excited by excitation light. Where chromaticity coordinates of the fluorescent light emitted by the first phosphor and chromaticity coordinates of the fluorescent light emitted by the second phosphor are (x1, y1) and (x2, y2), respectively, ?0.02?x1?x2?0.02 and ?0.02?y1?y2?0.02 are satisfied. A peak wavelength of an excitation spectrum of the first phosphor is different from a peak wavelength of an excitation spectrum of the second phosphor.Type: GrantFiled: April 6, 2018Date of Patent: February 25, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Kenta Watanabe
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Patent number: 10573226Abstract: A display panel and a display device are provided. The display panel comprises a display area; a non-display area surrounding the display area and including a first non-display area and a second non-display area disposed on opposite sides of the display area in a row direction; a first scanning driving circuit disposed at the first non-display area; a second scanning driving circuit and a light-emitting controlling circuit disposed at the second non-display area; and at least one notch. The display area includes an irregular-shaped side which is a common boundary between the display area and the first non-display area. The irregular-shaped side includes at least one sub-edge, and the at least one sub-edge is recessed towards an inside of the display area to form the at least one notch.Type: GrantFiled: December 18, 2018Date of Patent: February 25, 2020Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yangzhao Ma, Tianqing Hu, Zhaokeng Cao
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Patent number: 10563842Abstract: A light-emitting device includes a radiation source that radiates laser light as first primary light, and a first wavelength converter, and emits output light. The first wavelength converter has an incidence face on which the first primary light is incident, and an emission face through which the output light emits. A normal to the incidence face and a normal to the emission face are mutually different. A first phosphor included in the first wavelength converter is a single crystal phosphor.Type: GrantFiled: November 21, 2016Date of Patent: February 18, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takeshi Abe, Shozo Oshio
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Patent number: 10563124Abstract: A method of producing a nitride fluorescent material having relatively high light emission intensity is provided. The method of producing a nitride fluorescent material includes preparing a calcined product having a composition containing at least one first element selected from the group consisting of Ba, Sr, Ca, and Mg, at least one second element selected from the group consisting of Eu, Ce, Tb, and Mn, and Si and N, and bringing the calcined product into contact with a fluorine-containing substance at a temperature in a range of ?20° C. or higher and lower than 150° C.Type: GrantFiled: June 28, 2017Date of Patent: February 18, 2020Assignee: NICHIA CORPORATIONInventors: Shoji Hosokawa, Daiki Kuramoto
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Patent number: 10558053Abstract: An optical device combines light emitted from first and second display panels. The first display panel emits first color light from a plurality of pixels. The second display panel emits second color light having a different wavelength range from the first color light from a plurality of pixels and emits third color light having a different wavelength range from the second color light from a plurality of pixels.Type: GrantFiled: May 24, 2018Date of Patent: February 11, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Akio Fukase, Kunihiko Yano
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Patent number: 10559765Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode. An electron transport region is between the second electrode and the emission layer. The electron transport region includes an electron injection layer including a first component including at least one halide of an alkali metal (Group I), a second component including at least one organometallic compound, and a third component including at least one of a lanthanide metal or an alkaline earth metal (Group II).Type: GrantFiled: December 27, 2016Date of Patent: February 11, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Wonsuk Han, Dongchan Kim, Wonjong Kim, Eungdo Kim, Dongkyu Seo, Jihye Lee, Dahea Im, Sanghoon Yim, Yoonhyeung Cho
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Patent number: 10553804Abstract: The present disclosure relates to an organic light emitting device including: a first electrode; a second electrode provided to face the first electrode; and an electron transport layer, an emitting layer and a hole transport layer provided between the first electrode and the second electrode, and the emitting layer contains doped protein quantum dots.Type: GrantFiled: September 4, 2018Date of Patent: February 4, 2020Assignee: Research & Business Foundation Sungkyunkwan UniversityInventors: June Kyun Park, Yong Han Roh, Sang Hyun Lee, Byung Chan Seo, Jae Won Jeong
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Patent number: 10544912Abstract: A loadable cassette holds a planar light source, such as a flat OLED panel, along with a companion driver board in a manner that allows both the light source and driver board to be operatively and replaceably connected to a luminaire or lighting system. The cassette maintains an air gap between the light source and driver board so as to prevent heat produced by the driver board from damaging the light source.Type: GrantFiled: January 23, 2017Date of Patent: January 28, 2020Assignee: ABL IP Holding, LLCInventors: Min-Hao Michael Lu, Jonathon Wickus
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Patent number: 10545378Abstract: The present invention relates to an electro-optical switching element comprising at least one light source, and a light converting layer, and to a use of the electro-optical switching element in an optical device. The invention further relates to an optical device comprising the electro-optical switching element.Type: GrantFiled: January 20, 2016Date of Patent: January 28, 2020Assignee: Merck Patent GmbHInventors: Masayoshi Suzuki, Tadashi Kishimoto
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Patent number: 10539862Abstract: A wavelength conversion element includes a wavelength conversion layer containing a plurality of phosphor particles and an inorganic binder that bonds the phosphor particles to each other and a substrate that holds the wavelength conversion layer and contains alumina and air cavities. The substrate has an apparent air cavity ratio that is greater than or equal to 10% and smaller than or equal to 30%. The substrate has a median diameter of particles of the alumina that is greater than or equal to 0.1 ?m and smaller than or equal to 1.0 ?m.Type: GrantFiled: May 29, 2018Date of Patent: January 21, 2020Assignee: SEIKO EPSON CORPORATIONInventor: Toshiaki Hashizume
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Patent number: 10529461Abstract: Disclosed are an organic heterocyclic compound represented by Chemical Formula A and an organic light-emitting diode comprising the same. wherein substituents R1 to R8, X1 to X4, W1, and Y1 are each as defined in the specification.Type: GrantFiled: May 30, 2017Date of Patent: January 7, 2020Assignee: SFC CO., LTD.Inventors: Se-jin Lee, Seok-Bae Park, Taejung Yu, Byung-sun Yang, Yeong-tae Choi
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Patent number: 10517473Abstract: Provided is an endoscope light source apparatus including: first and second solid-state light sources that emit first and second light beams, respectively; a third solid-state light source that emits a third light beam that generates white light by being combined with the first and second light beams; an optical member that combines the first, second, and third light beams to generate a combined light; an optical filter that is provided so as to be insertable into/retractable from an optical path of the combined light; and a controller, wherein, in a first excitation-light illumination mode, the controller turns on the first and second solid-state light sources and weakly turns on the third solid-state light source, and, in a second excitation-light illumination mode, turns on the first solid-state light source, turns off the second solid-state light source, and weakly turns on the third solid-state light source.Type: GrantFiled: October 23, 2018Date of Patent: December 31, 2019Assignee: OLYMPUS CORPORATIONInventor: Kazuto Fujiwara
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Patent number: 10516122Abstract: Disclosed herein is a display apparatus, including: a foldable substrate; a pixel array section including a plurality of pixels disposed on the substrate and each including an electro-optical device; the foldable substrate being folded at a substrate end portion at least on one side thereof around the pixel array section; a peripheral circuit section disposed on the substrate end portion and adapted to drive the pixels of the pixel array section; and a pad section provided on the substrate end portion on which the peripheral circuit section is provided and adapted to electrically connect the peripheral circuit section to the outside of the substrate.Type: GrantFiled: March 13, 2019Date of Patent: December 24, 2019Assignee: JOLED Inc.Inventors: Tetsuo Minami, Katsuhide Uchino
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Patent number: 10510973Abstract: The present invention relates to OLED devices and stacks for OLED devices that include a symmetric emissive-layer architecture. In one embodiment, the present invention relates to an emissive stack having three layers, wherein the top and bottom layers emit light in the same or similar color region while the middle layer emits light in a different color region than the other two layers. In such an embodiment, the three layers are in contact with each other with no other layers in between. The symmetric emissive-layer architecture of the present invention can be used to improve the color stability of OLED devices.Type: GrantFiled: February 3, 2015Date of Patent: December 17, 2019Assignee: Universal Display CorporationInventors: Hitoshi Yamamoto, Xin Xu, Michael S. Weaver
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Patent number: 10497901Abstract: An organic EL display device 1 includes a flexible plastic substrate 10, an organic EL element 4 on the plastic substrate 10, and a sealing film 2 provided on the plastic substrate 10 to cover the organic EL element 4. The sealing film 2 includes a first sealing layer 25 on a surface of the plastic substrate 10, a stress relief layer 26 on a surface of the first sealing layer 25, and a second sealing layer 27 on a surface of the stress relief layer 26. Compressive stress of the first sealing layer 25 is lower than compressive stress of the second sealing layer 27.Type: GrantFiled: December 4, 2018Date of Patent: December 3, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Mamoru Ishida, Kazuhiko Tsuda, Yoshifumi Ohta
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Patent number: 10490749Abstract: An organic light-emitting device includes a first electrode and a second electrode facing the first electrode. An organic layer is between the first electrode and the second electrode. The organic layer includes an emission layer. A hole transport region is between the first electrode and the emission layer. A first auxiliary layer is between the hole transport region and the emission layer. The first auxiliary layer includes a first compound represented by Formula 1.Type: GrantFiled: July 13, 2017Date of Patent: November 26, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Eunji Choi, Jahyun Im
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Patent number: 10488572Abstract: There are provided a light emitting unit that enhances the uniformity of in-plane colors, as well as a display and a lighting apparatus that include such a light emitting unit thereon. The light emitting unit includes: a plurality of light emitting sections each having a light source and a wavelength conversion member, the wavelength conversion member converting a wavelength of light emitted from the light source; an optical component having a light incident surface in opposition to the plurality of light emitting sections; and a color unevenness prevention structure suppressing direct entering of light from the light source into the optical component.Type: GrantFiled: January 25, 2018Date of Patent: November 26, 2019Assignee: Saturn Licensing LLCInventors: Shingo Ohkawa, Tomoharu Nakamura, Gen Yonezawa
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Patent number: 10492318Abstract: A protective enclosure for an electronic device includes a first case portion that may be adapted to surround at least a portion of a top device portion and a second case portion that may be adapted to surround at least a portion of a bottom device portion. The protective enclosure may also include a first hinge member coupled to a portion of the first case portion and a portion of the second case portion, and the first hinge member may pivot about a first hinge axis that is coaxially aligned with or parallel to a device hinge axis.Type: GrantFiled: April 3, 2019Date of Patent: November 26, 2019Assignee: Otter Products, LLCInventors: Ryan J. Cavenagh, Jeremy L. Dennis, Cameron D. Magness, Lucas B. Weller, Hsiao Lu Sun
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Patent number: 10475968Abstract: In one embodiment, an optoelectronic component includes a semiconductor chip, which is able to emit radiation. A conversion element comprises at least one wavelength converting phosphor dispersed in a matrix material. The matrix material is a low-melting phosphate glass and water resistant. The optoelectronic component emits in operation warm white light.Type: GrantFiled: July 19, 2018Date of Patent: November 12, 2019Assignee: OSRAM Opto Semiconductors GmbHInventors: Yi Zheng, Victor Perez
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Patent number: 10475966Abstract: Embodiments provide a light-emitting device comprising: a light-emitting element configured for emitting excited light; a first wavelength conversion material to partially absorbs the excited light and emits light with a first emission wavelength; a second wavelength conversion material to partially absorbs the excited light and emits light with a second emission wavelength; and a third wavelength conversion material to partially absorbs the excited light and emits light with a third emission wavelength, wherein the first emission wavelength has a first emission peak at 530 nm to 540 nm, the second emission wavelength has a second emission peak at 550 nm to 560 nm, the third light-emitting device has a third emission peak at 620 nm to 650 nm.Type: GrantFiled: July 5, 2016Date of Patent: November 12, 2019Assignee: LG Innotek Co., Ltd.Inventors: Ji Wook Moon, Woo Seuk Song, Yong Jin Noh
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Patent number: 10475856Abstract: It is an object to provide a light-emitting device and an electronic device which can provide an image with excellent image quality. One of the present inventions is a light-emitting device including a plurality of light-emitting elements each exhibiting a different emission color. At least one of the plurality of light-emitting elements has n light-emitting layers (n is a natural number, n?2) between a pair of electrodes. Further, at least one of the n light-emitting layers includes a substance which provides emission from a triplet excitation state. In a light-emitting device having such a structure, an image is displayed by combining emissions from the plurality of light-emitting elements.Type: GrantFiled: September 28, 2016Date of Patent: November 12, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hajime Kimura, Shunpei Yamazaki
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Patent number: 10468564Abstract: A white light emitting package (20) comprises: a solid-state excitation source (LED 30) for generating excitation light with a dominant wavelength in a range 440 nm to 470 nm; and a layered photoluminescence structure. The layered photoluminescence structure comprises a first photoluminescence layer (32) comprising from 75 wt % to 100 wt % of a manganese-activated fluoride photoluminescence material of the total photoluminescence material content of the first photoluminescence layer, and a second photoluminescence layer (34) comprising photoluminescence material for generating light with a peak emission wavelength in a range from 500 nm to 650 nm. The second photoluminescence layer is disposed on the first photoluminescence layer and the first photoluminescence layer is in closer proximity to the solid-state excitation source than the second photoluminescence layer.Type: GrantFiled: April 2, 2019Date of Patent: November 5, 2019Assignee: Intematix CorporationInventors: Jun-Gang Zhao, Gang Wang, Yi-Qun Li
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Patent number: 10458627Abstract: A thin film sheet that includes a substrate, a first electrical connector, a second electrical connector, and one or more light sources and sensors electrically connected to the first and second electrical connectors within the thin film sheet. The first and second electrical connectors attach to the substrate and transmit power and/or information to and from the light sources and sensors, and the second electrical connector extends parallel to the first electrical connector.Type: GrantFiled: October 4, 2017Date of Patent: October 29, 2019Assignee: Grote Industries, LLCInventors: Cesar Perez-Bolivar, Michael R. Henderson, Adam Slade, Jiabiao Ruan, Charles D. Polley
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Patent number: 10452180Abstract: Provided is a driving circuit included in a touch display device, which is capable of performing display driving, touch sensing, and additional sensing in addition to the touch sensing. The driving circuit includes a common electrode driving controller, a pixel electrode driving controller, and a sending unit. The common electrode driving controller is configured to apply a common voltage to a common electrode during a display-driving period. The pixel electrode driving controller is configured to apply a data voltage to a pixel electrode during the display-driving period. The sensing unit is connected to the common electrode driving controller during a first sensing period and to the pixel electrode driving controller during a second sensing period. The sensing unit is configured to sense a change in capacitance between the common electrode or pixel electrode and an object that is in contact with the display panel.Type: GrantFiled: September 18, 2017Date of Patent: October 22, 2019Assignee: LG Display Co., Ltd.Inventors: SungYub Lee, HongChul Kim, YoungJoon Lee, Seongkyu Kang
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Patent number: 10446725Abstract: A light emitting device includes a mounting board, first and second light emitting elements and a light reflective covering member. The mounting board includes an insulating base, first and second lands arranged, and an intermediate part arranged between the first and second lands. The first and second light emitting elements are flip-chip mounted on the first and second lands, respectively. The light reflective covering member is provided above the intermediate part and covers lateral surfaces of the first and second light emitting elements. The light reflective covering member defines a recess part arranged above the intermediate part with a bottom of the recess part being positioned below top surfaces of the first and second light emitting elements and above the top surface of the intermediate part, and a surface of the light reflective covering member defining the recess part constitutes a part of an outer surface of the light emitting device.Type: GrantFiled: February 5, 2018Date of Patent: October 15, 2019Assignee: NICHIA CORPORATIONInventors: Takuya Nakabayashi, Tadaaki Ikeda
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Patent number: 10429893Abstract: A flexible display device that may fold so that a neutral surface has a radius of curvature is provided. The flexible display device includes a plurality of panel layers that are sequentially stacked on one another and comprise a display panel layer configured to display an image and a transparent protective panel layer; and adhesive layers that sequentially adhere the plurality of panel layers to one another. An elastic modulus and a thickness of each of the adhesive layers and the plurality of panel layers are determined so that a neutral surface is located on a layer other than the display panel layer.Type: GrantFiled: December 18, 2014Date of Patent: October 1, 2019Assignee: Samsung Electronics Co., Ltd.Inventors: Jun-hyung Kim, Won-ho Lee, Ho-seong Seo
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Patent number: 10424562Abstract: A light emitting device includes a first light emitting element, a second light emitting element, a first phosphor sheet containing a first phosphor and a third phosphor, and covering a top face of the first light emitting element, and a second phosphor sheet containing a second phosphor and a fourth phosphor, and covering a top face of the second light emitting element, wherein a peak wavelength of light which is wavelength-converted by the first phosphor or the third phosphor is equal to or less than a peak wavelength of light which is wavelength-converted by the second phosphor or the fourth phosphor.Type: GrantFiled: December 10, 2015Date of Patent: September 24, 2019Assignees: Citizen Electronics Co., Ltd., Citizen Watch Co., Ltd.Inventors: Yuki Suto, Jo Kinosita