Electroluminescent Patents (Class 428/917)
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Patent number: 11618722Abstract: A compound is represented by a formula (20) below.Type: GrantFiled: November 9, 2017Date of Patent: April 4, 2023Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masatoshi Saito, Kei Yoshida, Yuichiro Kawamura, Toshinari Ogiwara, Kei Yoshizaki
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Patent number: 11608008Abstract: An illuminated speaker panel assembly with an integrated audio seal is described. In one embodiment, an illuminated speaker panel assembly for a vehicle includes a speaker configured to mount to a door body of a vehicle and a base panel component configured to attach to the door body over the speaker. The base panel component includes a speaker frame aligned with an outer periphery of the speaker. The speaker frame includes an outer sealing wall, an inner retention wall, and a channel disposed between the outer sealing wall and the inner retention wall. A lighting member is disposed within the channel of the speaker frame such that the lighting member is configured to extend substantially along the outer periphery of the speaker.Type: GrantFiled: September 30, 2019Date of Patent: March 21, 2023Assignee: Honda Motor Co., Ltd.Inventors: Andrew E. Barrow, Eric Ma, Jason R. Dilley, Sarah Jennifer Huth, Rachel E. Canepa, Ryan W. Van Voorhis, John Michael Schermerhorn
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Patent number: 11604393Abstract: An electrochromic device includes a first substrate, a second substrate, and a plurality of electrochromic material units. The plurality of electrochromic material units are disposed between the first substrate and the second substrate. Each of the plurality of electrochromic material units is switchable between a colored state and a transparent state. An electronic apparatus is further disclosed.Type: GrantFiled: May 29, 2020Date of Patent: March 14, 2023Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventor: Xin Yang
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Patent number: 11600672Abstract: A display device includes a viewing angle control layer including a liquid crystal layer disposed on a second electrode of an organic light-emitting element and the control electrode disposed on the liquid crystal layer, the control electrode includes a plate electrode and a plurality of tip electrodes protruding from the plate electrode toward the second electrode, wherein the plurality of tip electrodes are arranged within a light-emitting area of the organic light-emitting element, and the liquid crystal layer includes positive c-plate liquid crystal molecules aligned vertically.Type: GrantFiled: December 6, 2021Date of Patent: March 7, 2023Assignee: LG DISPLAY CO., LTD.Inventor: Hyunseung Kim
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Patent number: 11600791Abstract: 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: November 2, 2020Date of Patent: March 7, 2023Assignee: 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: 11594689Abstract: An organic light-emitting device including a first electrode, a second electrode facing the first electrode, and an organic layer disposed between the first electrode and the second electrode, wherein the organic layer includes an emission layer, wherein the emission layer includes a host and a dopant, and wherein the organic light-emitting device satisfies predetermined conditions described in the specification.Type: GrantFiled: January 15, 2018Date of Patent: February 28, 2023Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD., EWHA UNIVERSITY—INDUSTRY COLLABORATION FOUNDATIONInventors: Sooghang Ihn, Youngmin You, Changho Noh, Jongsoo Kim, Joonghyuk Kim, Namheon Lee
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Patent number: 11594697Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.Type: GrantFiled: January 11, 2021Date of Patent: February 28, 2023Assignee: Universal Display CorporationInventors: Vadim Adamovich, Michael Stuart Weaver, Raymond Kwong
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Patent number: 11581509Abstract: A display panel includes a light-emitting device on a substrate and an encapsulation structure on a light output surface on one side of the light-emitting device. The encapsulation structure includes a first inorganic layer and a fluoro-polymeric layer. Ductility and bending resistance of the fluoro-polymeric layer are greater than those of the first inorganic layer. Defects between the fluoro-polymeric layer and the first inorganic layer are fewer than those between the first inorganic layer and another layer.Type: GrantFiled: July 16, 2020Date of Patent: February 14, 2023Assignee: BOE Technology Group Co., Ltd.Inventors: Xin Li, Xing Fan, Liangyu Shi
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Patent number: 11569470Abstract: An organic light-emitting device includes: a first pixel electrode on a first emission region, a second pixel electrode on a second emission region, and a third pixel electrode on a third emission region; a counter electrode facing each of the first pixel electrode, the second pixel electrode, and the third pixel electrode; and an interlayer between the counter electrode and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode. The interlayer includes an emission layer, and a hole transport region between the emission layer and each of the first pixel electrode, the second pixel electrode, and the third pixel electrode, the hole transport region includes a planarization layer that includes an amine-based compound represented by Formula 1, Formula 2A, or Formula 2B, and the amine-based compound has a crystallization peak having a noise-to-peak ratio of 1.75 or more in an X-ray diffraction (XRD) spectrum.Type: GrantFiled: July 14, 2020Date of Patent: January 31, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyomin Ko, Changmin Lee
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Patent number: 11566033Abstract: The present invention relates to the compound represented by the general Formula (I): wherein X is selected from the group consisting of O, S and Se; R1 and R2 are independently selected from the group consisting of C1 to C12 alkyl, C6 to C20 aryl and C5 to C20 heteroaryl, wherein the respective C1 to C12 alkyl may optionally be substituted with C6-C20 aryl; L represents a single bond or is selected from the group consisting of C6 to C18 arylene or C2 to C20 heteroarylene; wherein the rings B, C and D may each be unsubstituted or substituted and B and C are anellated aromatic 6-membered rings; R3 and R4 are independently selected from the group consisting of unsubstituted or substituted C1 to C12 alkyl, unsubstituted or substituted C1 to C12 fluorinated alkyl, unsubstituted or substituted C6 to C20 aryl and unsubstituted or substituted C5 to C20 heteroaryl; wherein the substituents, if present in B, C, D, R3 and R4, are independently selected from the group consisting of C1-C20 linear alkyl, C3-C20 brancType: GrantFiled: December 18, 2018Date of Patent: January 31, 2023Assignee: Novaled GmbHInventors: Julien Frey, Regina Luschtinetz
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Patent number: 11566345Abstract: A semiconductor nanocrystal particle, a production method thereof, and a light emitting device including the same. The semiconductor nanocrystal particle includes a core including a first semiconductor nanocrystal, a first shell surrounding the core, the first shell including a second semiconductor nanocrystal including a different composition from the first semiconductor nanocrystal, a second shell surrounding the first shell, the second shell including a third semiconductor nanocrystal including a different composition from the second semiconductor nanocrystal, wherein the first semiconductor nanocrystal includes zinc and sulfur; wherein the third semiconductor nanocrystal includes zinc and sulfur; wherein an energy bandgap of the second semiconductor nanocrystal is less than an energy bandgap of the first semiconductor nanocrystal and less than an energy bandgap of the third semiconductor nanocrystal; and wherein the semiconductor nanocrystal particle does not include cadmium.Type: GrantFiled: February 21, 2019Date of Patent: January 31, 2023Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jin A Kim, Yuho Won, Sung Woo Kim, Tae Hyung Kim, Jeong Hee Lee, Eun Joo Jang
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Patent number: 11557736Abstract: Provided is an organometallic compound of Chemical Formula 1: wherein, in Chemical Formula 1: X is O, S, NH, or Se; R1 is —Si(Ra)(Rb)(Rc), where Ra, Rb, and Rc are hydrogen, deuterium, or a substituted or unsubstituted C1-10 alkyl; R2, R3 and R4 are each independently hydrogen, deuterium, halogen, cyano, amino, a substituted or unsubstituted C1-60 alkyl, a substituted or unsubstituted C1-60 haloalkyl, a substituted or unsubstituted C1-60 alkoxy, a substituted or unsubstituted C1-60 haloalkoxy, a substituted or unsubstituted C3-60 cycloalkyl, a substituted or unsubstituted c2-60 alkenyl, a substituted or unsubstituted C6-60 aryl, a substituted or unsubstituted C6-60 aryloxy, or a substituted or unsubstituted C2-60 heterocyclic group containing one or more heteroatoms selected from the group consisting of N, O and S; a and b are each 0 and 1, or 1 and 0, respectively; and n is 1 or 2, and an organic light emitting device including the same.Type: GrantFiled: July 25, 2018Date of Patent: January 17, 2023Assignee: LG CHEM, LTD.Inventors: Seoyeon Kim, Tae Yoon Park, Sang Young Jeon, Dong Hoon Lee, Jung Ha Lee
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Patent number: 11524967Abstract: A heteroacene having the following formula (F) is described. An organic electroluminescence device comprises the heteroacene as a phosphorescent host, a fluorescent host, a hole blocking layer, or an electron transport layer. The heteroacene lowers a driving voltage, or increases a current efficiency or a half-life of the organic electroluminescence device.Type: GrantFiled: August 6, 2019Date of Patent: December 13, 2022Assignee: LUMINESCENCE TECHNOLOGY CORP.Inventors: Feng-Wen Yen, Tsun-Yuan Huang
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Patent number: 11518723Abstract: A fused ring compound and applications thereof in organic electronic components, particularly in organic electroluminescent diodes; an organic electronic component comprising the fused ring compound, and applications thereof in organic electroluminescent diodes and in display and lighting technologies; and a formulation comprising the fused ring compound, and applications thereof in the preparation of organic electronic components. By optimizing the component structure, good component performance can be achieved, and especially, a high-performance OLED component can be implemented, which provide good material and preparation technology choices for full-color display and lighting applications.Type: GrantFiled: November 23, 2017Date of Patent: December 6, 2022Assignee: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.Inventors: Xi Yang, Junyou Pan
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Patent number: 11515484Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.Type: GrantFiled: September 17, 2018Date of Patent: November 29, 2022Assignee: LT MATERIALS CO., LTD.Inventors: Geon-Yu Park, Young-Seok No, Seung-Gyu Yang, Ju-Hyon Cha, Dong-Jun Kim, Dae-Hyuk Choi, Joo-Dong Lee
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Patent number: 11495755Abstract: A compound having a structure of is disclosed. In these formulas, each R1, R2, and R3 is independently selected from hydrogen, alkyl, and aryl; at least one of R1 and R2 is a branched alkyl containing at least 4 carbon atoms, where the branching occurs at a position further than the benzylic position; where R1 and R3 are mono-, di-, tri-, tetra-, or no substitutions; and R2 is mono-, di-, or no substitutions. Heteroleptic iridium complexes including such compounds, and devices including such compounds are also disclosed.Type: GrantFiled: February 7, 2020Date of Patent: November 8, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Raymond Kwong, Bin Ma, Chuanjun Xia, Bert Alleyne, Jason Brooks
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Patent number: 11492313Abstract: An organic compound is represented by formula (1). In the formula (1), R1 to R24 are each independently selected from the group consisting of a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted aryloxy group, a silyl group, and a cyano group.Type: GrantFiled: May 28, 2020Date of Patent: November 8, 2022Assignee: Canon Kabushiki KaishaInventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani
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Patent number: 11492330Abstract: An organic compound having a naphtho fluoranthene core and a hetero aromatic group bonded to a specific position of the naphtho fluoranthene core, an organic light-emitting diode and an organic light-emitting device including the compound are disclosed. Since the organic compound has a narrow Stokes Shift between an absorption wavelength and an emission wavelength, the organic compound has a broad overlapped area between its absorption peak and an emission peak of a delayed fluorescent material, and therefore it can emit blue light with high color purity. It is possible to manufacture an organic light-emitting diode (OLED) and an organic light-emitting device that enhance luminous efficiency and color purity using the organic compound.Type: GrantFiled: August 1, 2019Date of Patent: November 8, 2022Assignee: LG Display Co., Ltd.Inventors: Jeong-Eun Baek, Mi-Sang Yoo, Kyung-Jin Yoon, Joong-Hwan Yang
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Patent number: 11495779Abstract: The present disclosure discloses a pixel defining layer and a manufacturing method thereof, an array substrate and a display device, and belongs to the field of display technology. The pixel defining layer includes a plurality of pixel defining structures arranged in an array, wherein the pixel defining structure includes a first bottom surface and a second bottom surface opposite each other, and a side surface located between the first bottom surface and the second bottom surface. Since the side surface is non-planar, the structure between the side surface and the bottom surface close to the base substrate constitutes a capillary structure. During the inkjet printing process, the solution in which the organic light emitting material is dissolved can spread more evenly under the attraction of the capillary structure.Type: GrantFiled: December 13, 2019Date of Patent: November 8, 2022Assignee: Beijing BOE Technology Development Co., Ltd.Inventor: Wenjun Hou
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Patent number: 11482690Abstract: A protective window includes a glass substrate which faces a display surface of an image-generating panel and has a thickness of about 20 micrometers to about 80 micrometers; a protective film which faces the display surface of the image-generating panel with the glass substrate therebetween; an adhesive layer which is between the protective film and the glass substrate and combines the protective film with the glass substrate; and a protective layer which covers an edge portion of the glass substrate. A thickness of the protective layer which covers the edge portion of the glass substrate is equal to or less than about ? of a thickness of the adhesive layer which combines the protective film with the glass substrate.Type: GrantFiled: August 7, 2020Date of Patent: October 25, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jai Ku Shin, Dong Jin Park, Dongwoo Seo, Sung Chul Choi
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Patent number: 11476423Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as described in the detailed description.Type: GrantFiled: January 29, 2021Date of Patent: October 18, 2022Assignee: Samsung Electronics Co., Ltd.Inventors: Norihito Ishii, Katsunori Shibata, Takkyun Ro, Ohkyu Kwon, Sang Mo Kim, Kyung Bae Park, Sung Young Yun, Dong-Seok Leem, Youn Hee Lim, Yong Wan Jin, Yeong Suk Choi, Jong Won Choi, Taejin Choi, Hyesung Choi, Chul Joon Heo
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Patent number: 11469383Abstract: A compound of Formula I wherein L is a bidentate ligand coordinated to a metal M; each ring K is the same, and represents a 5-membered or 6-membered heteroaryl ring and with ring J forms a 5-member cyclometallated ring; A1 and A1? are the same and selected from CR1 or N; A2 and A2? are the same and selected from CR2 or N; A3 and A3? are the same and selected from CR3 or N; each R4 with its corresponding ring position R4? are the same, and R1 to R5 are as defined in the specification. An OLED with an organic layer that includes a compound of Formula I and a consumer product that includes the OLED. A method of making a compound of Formula I is also described.Type: GrantFiled: September 26, 2019Date of Patent: October 11, 2022Assignee: Universal Display CorporationInventors: Jui-Yi Tsai, Pierre-Luc T. Boudreault, Erik Mora
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Patent number: 11464087Abstract: A method for manufacturing an inorganic thin film electroluminescent display element comprises forming a layer structure, said forming the layer structure comprising forming a first dielectric layer (11); forming a luminescent layer (12), comprising manganese doped zinc sulfide ZnS:Mn, on the first dielectric layer, and forming a second dielectric layer (13) on the luminescent layer. Each of the first and the second dielectric layers are formed so as to comprise nanolaminate with alternating aluminum oxide Al2O3 and zirconium oxide ZrO2 sub-layers.Type: GrantFiled: August 30, 2017Date of Patent: October 4, 2022Assignee: Lumineq OyInventors: Heli Seppänen, Tommy Turkulainen, Kari Härkönen
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Patent number: 11451763Abstract: The present disclosure relates to a directional pixel for a high-angular resolution, wide field of view, multiple view display. The design teaches a directional pixel comprising a substrate, one or more pixel driving circuits, one or more nano- or micro-scale subpixels, and one or more directional optical guiding surfaces, wherein each of said one or more subpixels is comprised of a light emitting device emitting a light beam and an optical microcavity housing said light emitting device. The optical microcavity is comprised of a plurality of reflective surfaces to specifically manipulate and tune said light beam, wherein one or more of said reflective surfaces is a light propagating reflective surface which propagates said light beam out of said microcavity, and said light propagating reflective surface is connected to said one or more directional optical guiding surfaces to direct said light beam at a specific angle.Type: GrantFiled: April 30, 2021Date of Patent: September 20, 2022Assignee: Avalon Holographies Inc.Inventors: Wally Haas, Jennifer Campbell-Correa, Matthew Hamilton, Stephen Hill, Jordan Peckham, Chuck Rumbolt
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Patent number: 11424413Abstract: The present disclosure provides an electroluminescent material, a method for manufacturing the electroluminescent material, and a luminescent device, by employing a fluorenyl group showing good planarity and strong visible ?-?* absorption as ?-based system, and simultaneously introducing a compound containing a carbazole group as an electron donor and a compound containing a pyridine group as an electron acceptor to realize an electroluminescent material, a method for manufacturing the electroluminescent material and a luminescent device with emitting a blue light and a high electroluminescence efficiency.Type: GrantFiled: May 14, 2019Date of Patent: August 23, 2022Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co, Ltd.Inventor: Yamin Wang
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Patent number: 11404485Abstract: The present disclosure generally relates to display technologies. An array substrate may include a plurality of first pixel units and a plurality of second pixel units arranged in alternating manner. Each of the plurality of first pixel units may include a first plurality of subpixels, each of the first plurality of subpixels comprising a functional stack that has a thickness of from 180 to 360 nm. Each of the plurality of second pixel units may include a second plurality of subpixels, each of the second plurality of subpixels comprising a functional stack that has a thickness of from 80 to 140 nm.Type: GrantFiled: April 19, 2019Date of Patent: August 2, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenjun Hou
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Patent number: 11404677Abstract: A display panel, a manufacturing method thereof, and a display device are provided. The display panel includes a base layer, an anode layer disposed on the base layer, a hole transport layer disposed on the anode layer, a thermoelectric nanoparticle layer disposed on the hole transport layer, an organic light-emitting layer disposed on the thermoelectric nanoparticle layer, an electron transport layer disposed on the organic light-emitting layer, and a cathode layer disposed on the electron transport layer.Type: GrantFiled: February 28, 2020Date of Patent: August 2, 2022Assignee: TCL China Star Optoelectronics Technology Co., Ltd.Inventor: Yani Chen
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Patent number: 11390639Abstract: A compound having a first ligand LA of Formula I is disclosed, where Z1 to Z4 are each independently C or N; at least one of Z1 to Z4 is N; and ring A is a structure of Formula IIType: GrantFiled: March 26, 2019Date of Patent: July 19, 2022Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Scott Joseph, Bin Ma, Pierre-Luc T. Boudreault
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Patent number: 11395420Abstract: This disclosure relates to the field of display technology, in particular to a display panel and a display apparatus. The display panel includes a flexible display substrate and a force-dispersion component. The force-dispersion component is disposed at the flexible display substrate. The stiffness of the force-dispersion component is greater than that of the flexible display substrate. The force-dispersion component is capable of dispersing a stretching force experienced by the flexible display substrate.Type: GrantFiled: December 26, 2019Date of Patent: July 19, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Liming Dong, Shangchieh Chu
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Patent number: 11380873Abstract: A display panel and an electronic device are disclosed. The display panel includes a light-emitting layer, an encapsulation layer, and a touch layer. The light-emitting layer includes a plurality of pixel units and a plurality of isolating units disposed among the pixel units. The touch layer includes at least an insulating dielectric layer covering the encapsulation layer, and a plurality of touch units. The touch layer further includes a plurality of recessed portions disposed on the insulting dielectric layer and corresponding to the pixel units.Type: GrantFiled: November 11, 2019Date of Patent: July 5, 2022Assignee: Wuhan China Star Optoelectronies Semiconductor Display Technology Co., Ltd.Inventors: Weixin Ma, Caiqin Chen, Yu Zhao
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Patent number: 11362240Abstract: The invention refers to a light emitting device including a semiconductor chip having a main radiation surface, which emits UV light in operation, a phosphor, which is arranged in the radiation beam of the UV light, absorbs partially the UV light, wherein the phosphor converts the UV light into visible light so that the device emits mixed light comprising the UV light as well as visible light.Type: GrantFiled: May 24, 2017Date of Patent: June 14, 2022Assignee: OSRAM Opto Semiconductors GmbHInventors: Choon Kim Lim, Choo Kean Lim, Hui Chiang Teoh
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Patent number: 11355713Abstract: The present invention provides an improved hole transport material, manufacturing method and an electroluminescent device having a central core made of tetramethyldihydrophenazine. A structural formula of the hole transport material is: The present invention adjusts the structure of donor units to change a capability of providing electrons thereof, designs a hole transport material of a high mobility and reasonable wires, and the material improves the compounding efficiency.Type: GrantFiled: November 12, 2019Date of Patent: June 7, 2022Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventor: Jiajia Luo
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Patent number: 11340390Abstract: A color conversion sheet that converts incident light into light with a wavelength longer than that of the incident light, the color conversion sheet including the following layer (A) and layer (B): the layer (A): a layer containing an organic light-emitting material (a) that exhibits light emission with a peak wavelength observed in a region of 500 nm or more and 580 nm or less by using excitation light in a wavelength range of 400 nm or more and 500 nm or less, and a binder resin; and the layer (B): a layer containing an organic light-emitting material (b) that exhibits light emission with a peak wavelength observed in a region of 580 nm or more and 750 nm or less by being excited by either or both of excitation light in a wavelength range of 400 nm or more and 500 nm or less and light emission from the organic light-emitting material (a), and a binder resin; wherein SPA>SPB where SP values as solubility parameters of the binder resin contained in the layer (A) and the binder resin contained in the layerType: GrantFiled: May 16, 2018Date of Patent: May 24, 2022Assignee: TORAY INDUSTRIES, INC.Inventors: Hirotoshi Sakaino, Ryo Nagase
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Patent number: 11338159Abstract: One or more thermal images containing pixel-by-pixel radiation intensity data in two or more wavelength bands can be processed to accurately determine the location of fire within the image(s), regardless of the radiation-scattering effects of smoke. First, all pixels having radiation intensities above a fire threshold in the longer-wavelength band are classified as being aflame. Second, a threshold curve defining a fire threshold in the shorter-wavelength band is applied to the pixels, and those having radiation intensities above the fire threshold in the shorter-wavelength band are classified as being aflame. Third, at least the second group of pixels above is tested to see if each pixel classified as being aflame is part of a group of adjoining pixels which were all classified as being aflame, and if so, each such pixel is reclassified as not being aflame unless it also falls within the first group of pixels above.Type: GrantFiled: May 17, 2017Date of Patent: May 24, 2022Inventor: William Forsyth
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Patent number: 11302873Abstract: The present application provides a hetero-cyclic compound capable of greatly enhancing a lifetime, efficiency, electrochemical stability and thermal stability of an organic light emitting device, and an organic light emitting device containing the hetero-cyclic compound in an organic compound layer.Type: GrantFiled: December 19, 2017Date of Patent: April 12, 2022Assignee: LT MATERIALS CO, LTD.Inventors: Hyun Ju La, Yun Ji Lee, Gi Back Lee, Won Jang Jeong, Jin Seok Choi, Dae Hyuk Choi
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Patent number: 9893294Abstract: Small organic molecule semi-conducting chromophores containing a pyridalthiadiazole, pyridaloxadiazole, or pyridaltriazole core structure are disclosed. Such compounds can be used in organic heterojunction devices, such as organic small molecule solar cells and transistors.Type: GrantFiled: November 22, 2011Date of Patent: February 13, 2018Assignee: The Regents of the University of CaliforniaInventors: Gregory C. Welch, Corey V. Hoven, Thuc-Quyen Nguyen
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Patent number: 9394226Abstract: 3,4-Dicarboalkoxybiphenyl-3?,4?-dicarboxylic acid represented by the general formula (1): in which R11 and R12 each represents an alkyl group having 1 to 4 carbon atoms, and n represents the number of waters of hydration that is 0 or 1, and the corresponding anhydride.Type: GrantFiled: October 1, 2014Date of Patent: July 19, 2016Assignee: UBE INDUSTRIES, LTD.Inventors: Yasushi Yamamoto, Yasutaka Yoshida, Hikaru Yatabe, Yoshihiro Yamauchi, Tetsurou Tsuji
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Patent number: 9040175Abstract: The present invention relates to an electronic device comprising at least one organic semiconducting material according to the following formula (I): wherein R1-4 are independently selected from H, halogen, CN, substituted or unsubstituted C1-C20-alkyl or heteroalkyl, C6-C20-aryl or C5-C20-heteroaryl, C1-C20-alkoxy or C6-C20-aryloxy, Ar is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, and R5 is selected from substituted or unsubstituted C6-C20-aryl or C5-C20-heteroaryl, H, F or formula (II).Type: GrantFiled: June 8, 2011Date of Patent: May 26, 2015Assignee: NOVALED AGInventors: Omrane Fadhel, Ramona Pretsch
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Patent number: 9040176Abstract: An organic light-emitting device including: a substrate; a display unit on the substrate; and an encapsulation layer covering the display unit, the encapsulation layer having an alternating stack structure of an organic layer and an inorganic layer, and the organic layer including a polymer polymerized from monomers of Formula 1 and Formula 2:Type: GrantFiled: March 14, 2013Date of Patent: May 26, 2015Assignee: Samsung Display Co., Ltd.Inventors: Nam-Jin Kim, Chul-Hwan Park
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Patent number: 9040720Abstract: A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R1, R2, Ar3, and ?3). Further, a substituent which makes the band gap (Bg) and the T1 level of a compound in which a bond of the substituent is substituted with hydrogen wide and high is used as each of the substituents in General Formula (G1) (R1, R2, Ar3, and ?3).Type: GrantFiled: November 11, 2013Date of Patent: May 26, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue Osaka, Takako Takasu, Hiroshi Kadoma, Yuko Kawata, Satoko Shitagaki, Hiromi Nowatari, Tsunenori Suzuki, Nobuharu Ohsawa, Satoshi Seo
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Patent number: 9040718Abstract: Compounds (including polymers) for use in hybrid host materials which can be used in electroluminescent devices. The compounds comprise at least one electron-transporting moiety and at least one hole-transporting moiety which are joined by a flexible linker. Hybrid host materials comprising the compounds exhibit stability against phase separation, elevated glass transition temperature, morphological stability against crystallization, and isolation of the electron transporting moiety and hole transporting moiety ?-systems.Type: GrantFiled: January 22, 2010Date of Patent: May 26, 2015Assignee: The University of RochesterInventors: Shaw H. Chen, Lichang Zeng, Thomas Yung-Hsin Lee
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Patent number: 9040172Abstract: The present invention describes novel indenofluorene derivatives which can preferably be employed as matrix materials for phosphorescent dopants or as electron-transport materials, in particular for use in the emission and/or charge-transport layer of electroluminescent devices. The invention furthermore relates to polymers which comprise these compounds as structural units and to a process for the preparation of the compounds according to the invention and to electronic devices which comprise same.Type: GrantFiled: June 1, 2010Date of Patent: May 26, 2015Assignee: Merck Patent GmbHInventors: Amir Hossain Parham, Christof Pflumm, Teresa Mujica-Fernaud, Arne Buesing, Holger Heil
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Patent number: 9040719Abstract: A carbazole derivative represented by the general formula (1) is provided. In the formula, Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; ? and ? independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms which form a ring; R1 represents an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring; and R11 to R17 and R21 to R28 independently represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms which form a ring.Type: GrantFiled: August 7, 2013Date of Patent: May 26, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroko Nomura, Harue Osaka, Takahiro Ushikubo, Satoshi Seo
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Patent number: 9034485Abstract: The present invention relates to compounds of the formula (1) and to the use thereof in organic electronic devices, and to organic electronic devices which comprise compounds of the formula (1), preferably as hole-transport materials and/or as emitting materials.Type: GrantFiled: December 22, 2009Date of Patent: May 19, 2015Assignee: Merck Patent GmbHInventors: Arne Buesing, Holger Heil, Philipp Stoessel, Amir Hossain Parham, Rocco Fortte, Jonas Valentin Kroeber
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Patent number: 9034482Abstract: The present invention relates to the improvement of organic electroluminescent devices which consist of a certain matrix material which has been doped with at least one phosphorescent emitter, and which are characterized in that the doping zone of the emitter in the matrix at right angles to the layer extends only over a part of the matrix layer.Type: GrantFiled: September 16, 2004Date of Patent: May 19, 2015Assignee: Merck Patent GmbHInventors: Horst Vestweber, Anja Gerhard, Philipp Stössel
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Patent number: 9034487Abstract: A light-emitting element material including an ionic iridium complex in which a 2,6-bis(2-picolinyl)pyridine structure is coordinated to iridium is provided. Alternatively, a light-emitting element material including an ionic iridium complex represented by the following structural formula (1) is provided. In addition, a light-emitting element including the light-emitting element material is provided.Type: GrantFiled: November 22, 2011Date of Patent: May 19, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Satoshi Seo
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Patent number: 9028980Abstract: The present invention relates to an organic electroluminescent element which comprises two or more hole injection/transport layers each formed by a wet film formation method using a composition containing, as a hole-injecting/transporting compound, an arylamine polymer compound that has a repeating unit having a triarylamine structure therein, in which when the number of atoms present on the path which is the smallest in the number of atoms present thereon, of the paths which each connect the nonaromatic tertiary nitrogen atoms contained in any two triarylamine structures present in each polymer compound, is taken as N: the minimum number of atoms between nitrogen atoms in the compound, then the N in each hole injection/transport layer is in a specific state.Type: GrantFiled: July 15, 2013Date of Patent: May 12, 2015Assignee: Mitsubishi Chemical CorporationInventors: Tomohiro Abe, Futoshi Tanaka, Kazuki Okabe, Atsushi Takahashi, Koichiro Iida, Ichiro Imada
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Patent number: 9028976Abstract: A highly stable organic EL material having the properties of both benzofluoranthene and anthracene structures is provided. The organic EL device has at least one organic compound layer containing a compound presented by the general formula (I) below: (in which L is a linking group linking any one of the positions 1 to 12 and any one of the positions 13 to 22; the unlinked positions 1 to 22 are substituted by any of a hydrogen atom, substituted or unsubstituted aryl group, substituted or unsubstituted heterocyclic group, substituted or unsubstituted alkyl group, and aromatic amino group; and L presents any of a single bond, substituted or unsubstituted arylene group, substituted or unsubstituted heterocyclic group, and substituted or unsubstituted alkylene group).Type: GrantFiled: May 27, 2011Date of Patent: May 12, 2015Assignee: Futaba CorporationInventors: Akira Ebisawa, Hajime Amano, Sumiko Kitagawa, Tetsushi Inoue
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Patent number: 9028979Abstract: The present invention relates to electroluminescent devices, comprising a compound of the formula (I) as a component of the transporting/injecting and/or electron blocking layer. The compounds of formula (I) may function alone, or in combination with dopants to provide improved efficiency, driving voltage and/or lifetime of electroluminescent devices.Type: GrantFiled: June 11, 2010Date of Patent: May 12, 2015Assignee: BASF SEInventors: Christian Schildknecht, Christian Lennartz, Soichi Watanabe, Gerhard Wagenblast, Peter Murer, Thomas Schäfer, Natalia Chebotareva, Andrea Ricci, Kristina Bardon
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Patent number: 9023489Abstract: Disclosed herein are red phosphorescent compounds of the following formula: wherein ?includes a phenyl part and a quinoline part, each ring of the phenyl part having at least one substituent selected from hydrogen, C1-C4 alkyl groups and C1-C4 alkoxy groups and ?is selected from 2,4-pentanedione, 2,2,6,6,-tetramethylheptane-3,5-dione, 1,3 -propanedione, 1,3-butanedione, 3,5-heptanedione, 1,1,1-trifluoro-2,4-pentanedione, 1,1,1,5,5,5 -hexafluoro-2,4-pentanedione and 2,2-dimethyl-3,5-hexanedione.Type: GrantFiled: November 6, 2006Date of Patent: May 5, 2015Assignee: LG Display Co., Ltd.Inventors: Jung Keun Kim, Jeong Dae Seo, Hyun Cheol Jeong, Chun Gun Park, Jong Kwan Bin, Kyung Hoon Lee, Sung Hoon Pieh