Organic Phosphor Patents (Class 313/504)
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Patent number: 10879473Abstract: The present invention relates to organic electronic devices. The devices can include a first electrode, a second electrode, and a substantially organic layer. The substantially organic layer may include a lithium-containing compound, and may be arranged between the first and the second electrode. Also provided herein are organic light emitting diodes, organic solar cells, and organic field effect transistors that include the lithium-containing compound.Type: GrantFiled: June 6, 2014Date of Patent: December 29, 2020Assignee: Novaled GmbHInventors: Francois Cardinali, Omrane Fadhel, Mike Zöllner, Carsten Rothe, Mauro Furno
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Patent number: 10873038Abstract: Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters.Type: GrantFiled: April 10, 2018Date of Patent: December 22, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Yonggang Wu, Chuanjun Xia, James Fiordeliso, Suman Layek, Bert Alleyne, Alexey Borisovich Dyatkin, Nasrin Ansari, Scott Beers, Edward Barron, Jason Brooks
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Patent number: 10870771Abstract: Described herein are non-aqueous ink compositions containing a polythiophene having a repeating unit complying with formula (I) described herein, a transition metal complex having at least one ?-diketonate ligand, and a liquid carrier having one or more organic solvents. The present disclosure also concerns the uses of such non-aqueous ink compositions, for example, in organic electronic devices.Type: GrantFiled: January 20, 2017Date of Patent: December 22, 2020Assignee: Nissan Chemical industries, Ltd.Inventors: Robert Swisher, Elena Sheina, Sergey B. Li, Marc Sims
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Patent number: 10873055Abstract: Provided are a display panel and a display device. The display panel includes: a substrate and pixel units provided on the substrate, and the pixel units of at least two different colors are adjacently arranged. In a direction facing away from the substrate, one of the pixel units includes a reflective electrode, a light emitting unit and a color resist, and the light emitting unit and the color resist disposed in a same pixel unit have a same color, a vertical projection of a geometric center of the light emitting unit on the substrate is not overlapped with that of a geometric center of the color resist in the same pixel unit on the substrate. A vertical projection of the color resist in the pixel unit on the substrate is overlapped with that of the light emitting unit in a pixel unit closest to the pixel unit on the substrate.Type: GrantFiled: July 16, 2019Date of Patent: December 22, 2020Assignee: Shanghai Tianma Micro-Electronics Co. Ltd.Inventors: Linshan Guo, Zhonghuan Cao, Jujian Fu, Jiaxian Liu
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Patent number: 10873028Abstract: A deposition mask may include a patterning region provided with a pattern portion, and a plurality of bonding regions provided near opposite ends of the patterning region in a first direction. The pattern portion may include a first pattern portion, in which first pattern holes are defined, and a plurality of second pattern portions, in which second pattern holes are defined, and which are located between opposite ends of the first pattern portion and the bonding regions in the first direction. A minimum distance between adjacent ones of the second pattern holes may be larger than a minimum distance between adjacent ones of the first pattern holes.Type: GrantFiled: April 29, 2019Date of Patent: December 22, 2020Inventors: Sanghoon Kim, Seungjin Lee
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Patent number: 10868258Abstract: A novel organic compound is provided. Moreover, a light-emitting element with high emission efficiency and a long lifetime is provided. A novel organic compound having a bicarbazole skeleton and a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton that includes at least one condensed ring or two condensed rings is provided. Moreover, a light-emitting element including the organic compound is provided.Type: GrantFiled: December 15, 2017Date of Patent: December 15, 2020Inventors: Miki Kurihara, Hideko Yoshizumi, Hiromitsu Kido, Tatsuyoshi Takahashi, Satoshi Seo
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Patent number: 10868093Abstract: A light emitting diode display includes a first electrode, a second electrode overlapping the first electrode, a light emission layer between the first electrode and the second electrode, a pixel defining layer overlapping a part of the first electrode, the pixel defining layer and the light emission layer being spaced apart from each other in a top view, and an inorganic layer between the first electrode and the light emission layer, and an edge of the inorganic layer overlapping the light emission layer and the pixel defining layer.Type: GrantFiled: January 17, 2019Date of Patent: December 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Gwui-Hyun Park, Chul Won Park, Bo Geon Jeon, Pil Soon Hong
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Patent number: 10868092Abstract: A display device includes a substrate, a thin film transistor on the substrate, an interlayer insulating layer on the thin film transistor, an electrode on the interlayer insulating layer, the electrode including an emission region, a contact region overlapping the thin film transistor, and a dummy region protruding from the emission region in a direction different from the contact region, and an emission layer on the electrode, the emission region of the electrode overlapping the emission layer.Type: GrantFiled: December 11, 2018Date of Patent: December 15, 2020Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sun-Kyu Joo, In Seok Song, Keun Chan Oh, Byung-chul Kim, In Ok Kim, Gak Seok Lee, Chang-Soon Jang
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Patent number: 10868263Abstract: The present disclosure provides a flexible display panel and a method for manufacturing same. The present disclosure not only ensures improvement of bending characteristics of display panels but also ensures high pixels per inch (PPI) of the display panels. Moreover, IR-drop is lowered and display uniformity of the panels is increased.Type: GrantFiled: January 11, 2019Date of Patent: December 15, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Weiwei Yang
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Patent number: 10868261Abstract: This invention discloses iridium complexes containing phenylpyridine ligand wherein there is an aryl or heterocyclic ring fused into phenyl ring. This invention also discloses organic light emitting devices comprising an anode, a cathode, and an organic layer disposed between the anode and the cathode, the organic layer comprising an iridium complex, and formulations comprising iridium complexes. The iridium complexes showed desired device performance.Type: GrantFiled: October 20, 2015Date of Patent: December 15, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Bin Ma, Chuanjun Xia
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Patent number: 10867154Abstract: Disclosed herein is a display device including a display unit, a cover glass protecting the display unit, an optical layer disposed on a back surface of the display unit to form a first air gap, an optical sensor disposed on a back surface of the optical layer to form a second air gap, the optical sensor being mounted on the base substrate, a first spacer positioned between the optical layer and the display unit and arranged around the first air gap, a first sealant applied in a paste state and changed into a hard state to bond the first spacer and the display unit, a second spacer positioned between the optical sensor and the optical layer and arranged around the second air gap, and a controller configured to determine whether information collected by the optical sensor matches the fingerprint information about the user stored in a memory unit.Type: GrantFiled: November 5, 2018Date of Patent: December 15, 2020Assignee: LG ELECTRONICS INC.Inventors: Dongeun Lee, Jungwhan Kim, Jeongmo Koo
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Patent number: 10868267Abstract: An electroluminescent device including an electrode, the electrode being ionically conductive; an electroluminescence layer positioned adjacent or in contact with the electrode, the electroluminescence layer being electrically coupled to the electrode; the electroluminescence layer receiving electrical energy from the electrode and illuminating in response to received electrical energy, and wherein the electrode and the electroluminescence layer are repairable such that the function of the electrode and the electroluminescence layer is restored after a deformation.Type: GrantFiled: July 5, 2018Date of Patent: December 15, 2020Assignee: City University of Hong KongInventors: Chunyi Zhi, Guojin Liang
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Patent number: 10861907Abstract: A display device according to an embodiment of the present invention includes: a substrate; a plurality of pixels arranged on the substrate; an insulating layer which covers the plurality of pixels; and a conductive layer which is located at an opposite side of the insulating layer from the plurality of pixels and covers the plurality of pixels.Type: GrantFiled: April 3, 2018Date of Patent: December 8, 2020Assignee: Japan Display Inc.Inventor: Hiraaki Kokame
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Patent number: 10862063Abstract: An electroluminescent device, a display panel and a display apparatus are disclosed. The electroluminescent device includes: a substrate; an anode on the substrate; a luminescent layer on a side of the anode facing away from the substrate; and a cathode on a side of the luminescent layer facing away from the substrate. The cathode includes a transflective layer on the side of the luminescent layer facing away from the substrate; and a light-emission enhancement layer on a side of the transflective layer facing away from the substrate. The anode is configured to reflect light incident thereon, a material of the transflective layer includes metal, and the transflective layer is configured to transmit a first portion of light incident thereon and to reflect a second portion of the light incident thereon.Type: GrantFiled: June 6, 2019Date of Patent: December 8, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wei Quan
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Patent number: 10861921Abstract: The present disclosure discloses a display panel, a display device and a manufacturing method of a display panel, in the field of display technology. The display panel includes a plurality of light-emitting unit groups. A light-transmitting region is between every two adjacent light-emitting unit groups. Each light-emitting unit group includes a light-shielding layer and a light-emitting unit. According to the display panel provided in the present disclosure, light emitted by the light-emitting unit can be viewed from on one side, and light emitted by the light-emitting unit cannot be emitted from the other side due to shielding by the light-shielding layer. Since the light-transmitting region exists, the other side is still transparent. Thus, the display panel can be combined with varied transparent components, which diversifies function of the display panel.Type: GrantFiled: June 25, 2019Date of Patent: December 8, 2020Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD, BOE TECHNOLOGY GROUP CO., LTD.Inventors: Bing Zhang, Qian Li
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Patent number: 10862055Abstract: Novel ligands for cyclometalated complexes that provide near-infrared emission are disclosed. The ligands contain strong electron-donating side chains such as alkoxy or alkylamine on a phenyl or naphthyl moiety which is linked by a covalent bond to the metal. This combination provides a significant red shift of the emission of the emitter.Type: GrantFiled: March 22, 2018Date of Patent: December 8, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Pierre-Luc T. Boudreault, Harvey Wendt, Bert Alleyne, Bin Ma, Scott Joseph
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Patent number: 10862054Abstract: New organometallic complexes having bis- or tris-heteroleptic ligands and large aspect ratio in one direction and their use in OLEDs to enhance the efficiency is disclosed.Type: GrantFiled: June 9, 2017Date of Patent: December 8, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Lichang Zeng, Jui-Yi Tsai, Chun Lin, Chuanjun Xia, Alexey Borisovich Dyatkin, Walter Yeager
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Patent number: 10861912Abstract: A flexible display panel and a display device are provided. The flexible display panel includes a flexible base and an organic light emitting diode layer. The organic light emitting diode layer is disposed on the flexible base, and the organic light emitting diode layer includes a plurality of sub-pixels disposed at intervals. Hardened blocks are disposed in the organic light emitting diode layer, and the hardened blocks are respectively disposed in the intervals of the sub-pixels spaced apart.Type: GrantFiled: February 19, 2019Date of Patent: December 8, 2020Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.Inventors: Qingxun Guo, Shoucheng Wang
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Patent number: 10854827Abstract: An organometallic compound represented by Formula 1: M(L1)n1(L2)n2??Formula 1 wherein groups M, L1, L2, n1, and n2 are the same as they are defined in the specification.Type: GrantFiled: December 14, 2015Date of Patent: December 1, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Whail Choi, Seungyeon Kwak, Yoonhyun Kwak, Ohyun Kwon, Hyeonho Choi, Kyuyoung Hwang, Sangdong Kim, Youngjae Park
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Patent number: 10854699Abstract: Discussed is an organic light emitting display device with auxiliary electrode and method of manufacturing the same according to the embodiments. The present disclosure is directed to provide a top emission type transparent organic light emitting display device and a method of manufacturing the same, which provides an area of an auxiliary electrode that effectively reduces a resistance of a cathode electrode, and decreases the number of masks, thereby simplifying the manufacturing process.Type: GrantFiled: August 24, 2018Date of Patent: December 1, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Joonsuk Lee, SeJune Kim
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Patent number: 10854682Abstract: A light-emitting device, an electronic device, or a lighting device with low power consumption and high reliability is provided. The light-emitting device includes a first light-emitting element, a second light-emitting element, a third light-emitting element, and a fourth light-emitting element. The first to fourth light-emitting elements include the same EL layer between an anode and a cathode. The EL layer includes a first light-emitting layer and a second light-emitting layer. The first light-emitting layer contains a fluorescent substance. The peak wavelength of an emission spectrum of the fluorescent substance in a toluene solution of the fluorescent substance is 440 nm to 460 nm, preferably 440 nm to 455 nm. The second light-emitting layer contains a phosphorescent substance. The first light-emitting element exhibits blue emission. The second light-emitting element exhibits green emission. The third light-emitting element exhibits red emission.Type: GrantFiled: January 10, 2018Date of Patent: December 1, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Toshiki Sasaki, Tsunenori Suzuki, Sachiko Kawakami, Naoaki Hashimoto
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Patent number: 10847749Abstract: A lighting apparatus using an organic light emitting diode comprises a first anode and a second anode respectively disposed in an emission zone and a non-emission zone of an emission area defined at a substrate; a first insulating layer disposed on the second anode; an organic layer and a primary cathode disposed on the first anode; a secondary cathode disposed on the insulating layer and laterally connected to the primary cathode; and an encapsulating material disposed above the substrate, wherein the organic layer is disposed only between the primary cathode and the secondary cathode in the emission zone.Type: GrantFiled: December 11, 2019Date of Patent: November 24, 2020Assignee: LG DISPLAY CO., LTD.Inventor: JungHyoung Lee
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Patent number: 10844065Abstract: Provided are a heterocyclic compound represented by Formula 1 and an organic electroluminescence device and an organic electroluminescence display device including the heterocyclic compound represented by Formula 1 in an emission layer. In Formula 1, A is represented by Formula 2, D1 is represented by Formula 3, and D2 is represented by Formula 4.Type: GrantFiled: April 25, 2018Date of Patent: November 24, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jimyoung Ye, Myeongsuk Kim, Seulong Kim, Byeongwook Yoo, Jaehoon Hwang, Soo-byung Ko, Jihwan Yoon
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Patent number: 10838558Abstract: A flexible display device includes a first flexible substrate, a display unit on the first flexible substrate, a thin film encapsulation layer for encapsulating the display unit, a cover layer for covering the thin film encapsulation layer, a touch screen layer on the cover layer, and a second flexible substrate on the touch screen layer, wherein the touch screen layer includes a sensing pattern unit, and a touch pad unit electrically connected to the sensing pattern unit, wherein the cover layer is under the sensing pattern unit, and wherein a thickness of the cover layer from an upper surface of the thin film encapsulation layer to a lower surface of the touch screen layer is about 1 ?m to about 20 ?m.Type: GrantFiled: November 12, 2015Date of Patent: November 17, 2020Assignee: Samsung Display Co., Ltd.Inventors: Ungsoo Lee, Jinwoo Park, Hoyoun Kim, Hyunchul Oh, Jaewan Yoo, Hyunsoo Jung, Suhyuk Choi
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Patent number: 10840458Abstract: Novel organic materials containing indolocarbazoles as donor connected with electron acceptors such as quinoxaline or dibenzoquinoxaline for PHOLED devices are disclosed.Type: GrantFiled: May 15, 2017Date of Patent: November 17, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Bin Ma, Alan Deangelis, Lichang Zeng, Chuanjun Xia, Jerald Feldman
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Patent number: 10840471Abstract: An organic light emitting diode display device includes a substrate on which first, second and third pixel regions are defined; a first electrode in each of the first, second and third pixel regions on the substrate; a hole auxiliary layer on the first electrode; a first light emitting material layer on the hole auxiliary layer and emitting first light; an electron auxiliary layer on the first light emitting material layer; a second electrode on the electron auxiliary layer; and a color changing layer under the first electrode or on the second electrode, wherein the color changing layer includes first, second and third portions corresponding to the first, second and third pixel regions, respectively, and wherein the first portion absorbs the first light and outputs second light, the second portion absorbs the first light and outputs third light, and the third portion passes the first light as it is.Type: GrantFiled: December 15, 2017Date of Patent: November 17, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Jun-Ho Youn, Heume-Il Baek
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Patent number: 10839734Abstract: Techniques, devices, and systems are provided that allow for driving a device such as an OLED in various pulsed modes in which a momentary luminance greater than an apparent luminance at which the OLED is to be driven is used. The use of one or more pulsed modes allows for the lifetime of the OLED to be extended and reduces image sticking. Pulsed modes are also provided that allow for color tuning of the device by activating different portions of one or more emissive areas of the device.Type: GrantFiled: December 17, 2014Date of Patent: November 17, 2020Assignee: Universal Display CorporationInventors: Vadim Adamovich, Lech Michalski, Michael Stuart Weaver, Michael O'Connor
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Patent number: 10833276Abstract: This invention relates to carbazole- or indolocarbazole-containing donor acceptor type compounds with an ortho substitution on the aromatic group that is connected to carbazole. This unique substitution pattern will provide materials with superior performance for host applications. These compounds can also be used as delayed fluorescent emitters.Type: GrantFiled: January 31, 2017Date of Patent: November 10, 2020Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Lichang Zeng, Bin Ma, Chuanjun Xia
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Patent number: 10833293Abstract: A method of manufacturing a display apparatus having an organic EL element includes: a step of forming the organic EL element over a substrate made of a flexible substrate; and a step of forming a protecting film 16 made of an inorganic insulating material so as to cover the organic EL element by using an ALD method. In the step of forming the protecting film 16, the protecting film 16 is formed by alternately performing a step of forming a high-density layer 16H by using an ALD method and a step of forming, by using an ALD method, a low-density layer 16L that has the same constituent element as the high-density layer 16H and has a lower density than the high-density layer 16H. The protecting film 16 has a layered structure made of one or more high-density layers 16H and one or more low-density layers 16L so that the low-density layer 16L and the high-density layer 16H are alternately layered so as to be in contact with each other.Type: GrantFiled: October 31, 2017Date of Patent: November 10, 2020Assignee: THE JAPAN STEEL WORKS, LTD.Inventors: Keisuke Washio, Tatsuya Matsumoto, Takashi Ebisawa, Junichi Shida
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Patent number: 10825998Abstract: A novel type of blue emitter is described based on the azaphenanthridine imidazole ligand. The preferred use of this moiety for generating blue phosphorescence is as part of a symmetric platinum tetradentate complex.Type: GrantFiled: November 17, 2017Date of Patent: November 3, 2020Assignee: Universal Display CorporationInventors: Jason Brooks, Geza Szigethy, Scott Beers
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Patent number: 10826023Abstract: A display unit includes a plurality of pixels, a reflector layer, and an auxiliary pelectrode. Each of the plurality of pixels has a first electrode, an organic layer, and a second electrode in this order. The organic layer and the second electrode are provided on the first electrode. The organic layer includes a light-emitting layer. The reflector layer has a light-reflecting surface around each of the pixels. The auxiliary electrode is provided on the reflector layer and is projected from an upper end of the light-reflecting surface. The auxiliary electrode has a portion which is exposed from the organic layer, and the exposed portion is covered with the second electrode.Type: GrantFiled: November 13, 2019Date of Patent: November 3, 2020Assignee: Sony CorporationInventor: Daisuke Ueda
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Patent number: 10826020Abstract: A light-emitting device for use in a display device has enhanced directional light emission, and enhanced on-axis light emission in particular. A light-emitting device includes a layer structure that includes from a non-emitting side: a first electrode layer; a first charge transport layer; an emissive layer; a second charge transport layer; a second electrode layer; an optically transparent layer; and a partially transmitting reflector layer. The light-emitting device comprises a plurality of regions and each region emits light of a different wavelength, such as for example red, green, and blue light-emitting regions. The optically transparent layer is present in at least one of the plurality of regions. The optically transparent layer may be present in more than one of the plurality of regions, and a thickness of the optically transparent layer may differ in different regions to optimize light emission at different wavelengths.Type: GrantFiled: November 16, 2018Date of Patent: November 3, 2020Assignee: Sharp Kabushiki KaishaInventors: James Andrew Robert Palles-Dimmock, Tim Michael Smeeton, David James Montgomery, Nathan James Smith
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Patent number: 10826000Abstract: An organic light-emitting device includes: a first electrode; a second electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer, wherein the emission layer includes a first host and a dopant, the first host is represented by one selected from Formulae 1 and 2, and the dopant is represented by Formula 7: Ar11(L11)a11-(R11)b11]n11??Formula 1 Ar21(L21)a21-(R21)b21]n21??Formula 2 M(L1)n71(L2)n72.??Formula 7 The organic light-emitting device may have high efficiency and long lifespan and may show little change in the efficiency at an x-coordinate (CIEx) value of 0.21.Type: GrantFiled: October 16, 2015Date of Patent: November 3, 2020Assignee: Samsung Display Co., Ltd.Inventors: Naoyuki Ito, Myeong-Suk Kim, Youn-Sun Kim, Sung-Wook Kim, Hwan-Hee Cho, Chang-Woong Chu
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Patent number: 10818866Abstract: An organic electroluminescent device, a production method thereof, and a display apparatus are disclosed. Specifically, the organic electroluminescent device includes: a substrate; a pixel defining layer on the substrate; and a hole injection layer on the substrate, wherein the hole injection layer is located in a pixel defining opening of the pixel defining layer, wherein the hole injection layer includes a first hole injection sub-layer and a second hole injection sub-layer covering the first hole injection sub-layer, an orthographic projection area of the second hole injection sub-layer on the substrate is greater than the orthographic projection area of the first hole injection sub-layer on the substrate, and a hole mobility of the second hole injection sub-layer is greater than the hole mobility of the first hole injection sub-layer.Type: GrantFiled: May 29, 2018Date of Patent: October 27, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenjun Hou
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Patent number: 10818861Abstract: A light-emitting layer, which is a stack of a first light-emitting layer and a second light-emitting layer, is provided between an anode and a cathode. The first light-emitting layer is formed on the anode side and contains a first light-emitting substance converting triplet excitation energy into light emission, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property. The second light-emitting layer contains a second light-emitting substance converting triplet excitation energy into light emission, the first organic compound, and a third organic compound having a hole-transport property. The second organic compound has a lower HOMO level than the third organic compound. The first light-emitting substance emits light with a wavelength shorter than that of light emitted from the second light-emitting substance. The first and the second organic compounds form an exciplex. The first and the third organic compounds form an exciplex.Type: GrantFiled: March 9, 2017Date of Patent: October 27, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Hiromi Seo
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Patent number: 10815566Abstract: A flexible substrate, a manufacturing method thereof and a display are provided. The method includes: forming a first organic layer on a substrate; forming a first buffer layer on the first organic layer; forming an inorganic layer on the first buffer layer; and forming a second organic layer above the inorganic layer. In this way, it is possible to enhance the adhesion between the first organic layer and the inorganic layer due to the arrangement of the first buffer layer, and in turn reduce or even eliminate the risk that the first organic layer and the inorganic layer may be fallen off from each other during the bending process of the flexible substrate, enhance the anti-water and anti-oxygen abilities of the flexible substrate, and improve the quality of the substrate.Type: GrantFiled: November 23, 2017Date of Patent: October 27, 2020Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Xuanyun Wang
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Patent number: 10818865Abstract: The present disclosure provides multilayered hole injection structures including one or more layers of oxides for application in an organic electroluminescent device. The layered structures include an insulating metal oxide such as Al2O3 including a transition metal oxide to lower the hole injection barrier and enable hole transfer which is sandwiched between the conductive aluminum layer and a hole transport layer. The layered structure may also include a tri-layered structure stacked sequentially including a first electrically conductive layer, an insulating metal oxide and a hole injection layer material selected from a group of transition metal oxides.Type: GrantFiled: May 23, 2019Date of Patent: October 27, 2020Assignee: LAKESIDE PHOTOELECTRONIC TECHNOLOGY (JIANGSU) CO., LTD.Inventors: Jae Jin Lee, Zheng-Hong Lu
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Patent number: 10818844Abstract: The organic EL device of the present invention has an anode, a hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, and the hole transport layer contains an arylamine compound represented by the following general formula (1): where Ar1 to Ar4 each represent a monovalent aromatic hydrocarbon group or a monovalent aromatic heterocyclic group.Type: GrantFiled: July 8, 2015Date of Patent: October 27, 2020Assignees: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.Inventors: Norimasa Yokoyama, Takeshi Yamamoto, Shuichi Hayashi, Hideyoshi Kitahara
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Patent number: 10818877Abstract: Provided are a display device, a mask assembly, and an apparatus and a method for manufacturing the display device. The mask assembly includes: a mask frame; at least two mask sheets installed on the mask frame, each of the mask sheets including a plurality of openings; and at least two thin shielding plates installed on the mask frame such that the thin shielding plates are spaced apart from each other and shield a portion of the plurality of openings of each mask sheet, wherein one of the mask sheets and the thin shielding plates includes a shielding portion between the thin shielding plates spaced apart from each other, the shielding portion selectively blocking at least portions of the openings so as to form a deposition region having a shape other than a rectangle or a square.Type: GrantFiled: July 17, 2017Date of Patent: October 27, 2020Assignee: Samsung Display Co., Ltd.Inventors: Jaemin Hong, Hanul Kwen, Jeunghoon Kim, Jakyung Yu, Sujin Lee
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Patent number: 10811490Abstract: An electroluminescent display device includes a substrate, a bank for defining an emission area on the substrate, an emission layer in the emission area defined by the bank, an electrode on the emission layer and the bank, and a conductive layer on the electrode, wherein the electrode includes a first portion having a relatively small thickness, and a second portion having a relatively large thickness, and the conductive layer is in contact with the first portion of the electrode, and wherein the conductive layer is provided on the electrode, and more particularly, the conductive layer is provided in such a way the conductive layer is in contact with the relatively-thin first portion of the electrode so that it is possible to prevent problems related with a burning phenomenon or wiring disconnection in the first portion of the electrode.Type: GrantFiled: November 27, 2018Date of Patent: October 20, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Jeongmook Choi, Nackyoun Jung, Sangbin Lee
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Patent number: 10811478Abstract: An organic light-emitting diode display device includes a pixel electrode, a pixel-defining layer, an organic emission layer, and a counter electrode. The pixel-defining layer includes an opening partially exposing the pixel electrode. The organic emission layer is disposed on the pixel electrode. The organic emission layer is disposed in the opening. The counter electrode is disposed on the organic emission layer. The counter electrode opposes the pixel electrode. The pixel-defining layer includes a first pixel-defining layer and a second pixel-defining layer. The first pixel-defining layer is disposed on the pixel electrode and includes an inorganic material. The second pixel-defining layer is disposed on the first pixel-defining layer and includes an organic material. A sidewall of the first pixel-defining layer that is closest to the opening is aligned with a sidewall of the second pixel-defining layer that is closest to the opening.Type: GrantFiled: April 3, 2019Date of Patent: October 20, 2020Assignee: Samsung Display Co., Ltd.Inventors: Dae Won Choi, Tae Wook Kang, Kyeong Su Ko, Sang Gab Kim, Tae Sung Kim, Joon Geol Lee, Hyun Min Cho
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Patent number: 10811475Abstract: An array substrate and a manufacturing method thereof, and a display device are provided. The array substrate includes a substrate, and a plurality of pixel units arranged in an array on the substrate, each of the pixel units is provided with a plurality of thin film transistors, each of the pixel units includes a plurality of light emitting units, the plurality of light emitting units are sequentially arranged along a direction perpendicular to a plane where the substrate is located, and disposed at a side of the thin film transistors away from the substrate, each of the light emitting units is connected with one of the thin film transistors, and different ones of the light emitting units are connected to different ones of the thin film transistors.Type: GrantFiled: June 13, 2017Date of Patent: October 20, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Can Zhang, Jie Fu
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Patent number: 10811464Abstract: An organic EL display device includes at least one light emitting unit that includes a first electrode, an organic film that includes a light emitting layer and is provided over the first electrode, and a second electrode that is provided over the organic film and transmits light from the light emitting layer, and an optical adjusting layer that covers the at least one light emitting unit. The optical adjusting layer in a first area that overlaps the at least one light emitting unit in a planar view and the optical adjusting layer in at least one second area that is adjacent to the first area are different from each other in at least one of a number of layers that the optical adjusting layer includes, a film thickness, and a refractive index.Type: GrantFiled: December 14, 2017Date of Patent: October 20, 2020Assignee: Japan Display Inc.Inventors: Hironori Toyoda, Norihisa Maeda
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Patent number: 10804484Abstract: A lighting panel and method of fabricating the same, lighting module, lighting panel, and lighting system are provided. The lighting panel includes a material layer on a substrate; an auxiliary electrode embedded in the material layer; a first electrode on the material layer and electrically connected to the auxiliary electrode; an organic light-emitting layer and a second electrode in an emission portion where the first electrode is provided; and an encapsulation member in the emission portion of the substrate.Type: GrantFiled: July 11, 2018Date of Patent: October 13, 2020Assignee: LG Display Co., Ltd.Inventors: Nam-Kook Kim, Jung-Eun Lee, Tae-Ok Kim
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Patent number: 10804502Abstract: According to one embodiment, a display device capable of preventing spreading of color mixture even in a case where a bank has a defect, and preventing light emission failure in a pixel is provided. A plurality of first banks are provided on a substrate. A plurality of second banks are arranged to cross the first banks, and separate a plurality of pixels with the first banks. A plurality of repair members having liquid repellency are provided on the first banks located on both sides of a pixel corresponding to a defective portion of the second bank, of the pixels.Type: GrantFiled: April 13, 2018Date of Patent: October 13, 2020Assignee: JOLED INC.Inventor: Tetsuro Kondo
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Patent number: 10804345Abstract: An organic light emitting diode display apparatus includes a substrate and a pixel structure disposed on the substrate. The pixel structure includes an active element, a first electrode electrically connected to the active element, a bank layer disposed on the first electrode, a light emitting layer disposed on the first electrode and an opening of the bank layer, and a second electrode disposed on the light emitting layer. The first electrode has a first region and a plurality of protrusions disposed outside the first region. The opening of the bank layer overlaps with the first region and the protrusions of the first electrode.Type: GrantFiled: May 23, 2019Date of Patent: October 13, 2020Assignee: Au Optronics CorporationInventors: Chun-Yu Li, Ya-Pei Kuo, Tsu-Wei Chen
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Patent number: 10804330Abstract: A multi-view display device displays a first image, a second image, and a third image generated using the arrangement structure of subpixels and color filters, the gaps between the subpixels, and the arrangement structure of black matrices. The first to third red subpixels of the first to third subpixel groups display a red portion of the first to third images, the first to third green subpixels of the first to third subpixel groups display a green portion of the first to third images, and the first to third blue subpixels of the first to third subpixel groups display a blue portion of the first to third images.Type: GrantFiled: December 5, 2018Date of Patent: October 13, 2020Assignee: LG Display Co., Ltd.Inventors: Yu-Cheol Yang, Ji-ho Ryu, Yong-Baek Lee, Dong-Young Kim
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Patent number: 10804472Abstract: A light-emitting element according to the invention includes an anode, a cathode, and a light-emitting layer which is provided between the anode and the cathode, contains a light-emitting material and a host material that holds the light-emitting material, and emits light having a peak wavelength in a near-infrared region by applying a current between the anode and the cathode, wherein the content of the light-emitting material in the light-emitting layer is 30 wt % or more and 70 wt % or less. Further, it is preferred that the light-emitting layer emits light having the peak wavelength of 700 nm or more and 960 nm or less.Type: GrantFiled: March 6, 2018Date of Patent: October 13, 2020Assignee: SEIKO EPSON CORPORATIONInventors: Hidetoshi Yamamoto, Yuiga Hamade, Tetsuji Fujita
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Patent number: 10804498Abstract: A light emitting display apparatus can include a light emitting element disposed on a substrate; an encapsulation unit disposed on the light emitting element; and a scattering film disposed between the encapsulation unit and the light emitting element, or inside the encapsulation unit, the scattering film being configured to scatter light emitted from the light emitting element.Type: GrantFiled: July 29, 2019Date of Patent: October 13, 2020Assignee: LG DISPLAY CO., LTD.Inventors: NamSu Kim, YoungNam Lim, Seonghee Noh
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Patent number: 10804471Abstract: A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; ? represents a substituted or unsubstituted naphthyl group; ? represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.Type: GrantFiled: January 5, 2017Date of Patent: October 13, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue Osaka, Takahiro Ushikubo, Nobuharu Ohsawa, Satoshi Seo, Tsunenori Suzuki