Electroluminescent Patents (Class 428/917)
  • Patent number: 11518723
    Abstract: 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: Grant
    Filed: November 23, 2017
    Date of Patent: December 6, 2022
    Assignee: GUANGZHOU CHINARAY OPTOELECTRONIC MATERIALS LTD.
    Inventors: Xi Yang, Junyou Pan
  • Patent number: 11515484
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: November 29, 2022
    Assignee: 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
  • Patent number: 11495755
    Abstract: 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: Grant
    Filed: February 7, 2020
    Date of Patent: November 8, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Raymond Kwong, Bin Ma, Chuanjun Xia, Bert Alleyne, Jason Brooks
  • Patent number: 11492330
    Abstract: 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: Grant
    Filed: August 1, 2019
    Date of Patent: November 8, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Jeong-Eun Baek, Mi-Sang Yoo, Kyung-Jin Yoon, Joong-Hwan Yang
  • Patent number: 11495779
    Abstract: 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: Grant
    Filed: December 13, 2019
    Date of Patent: November 8, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventor: Wenjun Hou
  • Patent number: 11492313
    Abstract: 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: Grant
    Filed: May 28, 2020
    Date of Patent: November 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Nishide, Naoki Yamada, Jun Kamatani
  • Patent number: 11482690
    Abstract: 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: Grant
    Filed: August 7, 2020
    Date of Patent: October 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jai Ku Shin, Dong Jin Park, Dongwoo Seo, Sung Chul Choi
  • Patent number: 11476423
    Abstract: 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: Grant
    Filed: January 29, 2021
    Date of Patent: October 18, 2022
    Assignee: 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
  • Patent number: 11469383
    Abstract: 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: Grant
    Filed: September 26, 2019
    Date of Patent: October 11, 2022
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Pierre-Luc T. Boudreault, Erik Mora
  • Patent number: 11464087
    Abstract: 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: Grant
    Filed: August 30, 2017
    Date of Patent: October 4, 2022
    Assignee: Lumineq Oy
    Inventors: Heli Seppänen, Tommy Turkulainen, Kari Härkönen
  • Patent number: 11451763
    Abstract: 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: Grant
    Filed: April 30, 2021
    Date of Patent: September 20, 2022
    Assignee: Avalon Holographies Inc.
    Inventors: Wally Haas, Jennifer Campbell-Correa, Matthew Hamilton, Stephen Hill, Jordan Peckham, Chuck Rumbolt
  • Patent number: 11424413
    Abstract: 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: Grant
    Filed: May 14, 2019
    Date of Patent: August 23, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co, Ltd.
    Inventor: Yamin Wang
  • Patent number: 11404677
    Abstract: 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: Grant
    Filed: February 28, 2020
    Date of Patent: August 2, 2022
    Assignee: TCL China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yani Chen
  • Patent number: 11404485
    Abstract: 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: Grant
    Filed: April 19, 2019
    Date of Patent: August 2, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenjun Hou
  • Patent number: 11395420
    Abstract: 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: Grant
    Filed: December 26, 2019
    Date of Patent: July 19, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liming Dong, Shangchieh Chu
  • Patent number: 11390639
    Abstract: 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 II
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: July 19, 2022
    Assignee: UNIVERSAL DISPLAY CORPORATION
    Inventors: Scott Joseph, Bin Ma, Pierre-Luc T. Boudreault
  • Patent number: 11380873
    Abstract: 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: Grant
    Filed: November 11, 2019
    Date of Patent: July 5, 2022
    Assignee: Wuhan China Star Optoelectronies Semiconductor Display Technology Co., Ltd.
    Inventors: Weixin Ma, Caiqin Chen, Yu Zhao
  • Patent number: 11362240
    Abstract: 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: Grant
    Filed: May 24, 2017
    Date of Patent: June 14, 2022
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Choon Kim Lim, Choo Kean Lim, Hui Chiang Teoh
  • Patent number: 11355713
    Abstract: 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: Grant
    Filed: November 12, 2019
    Date of Patent: June 7, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Jiajia Luo
  • Patent number: 11338159
    Abstract: 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: Grant
    Filed: May 17, 2017
    Date of Patent: May 24, 2022
    Inventor: William Forsyth
  • Patent number: 11340390
    Abstract: 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 layer
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: May 24, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hirotoshi Sakaino, Ryo Nagase
  • Patent number: 11302873
    Abstract: 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: Grant
    Filed: December 19, 2017
    Date of Patent: April 12, 2022
    Assignee: LT MATERIALS CO, LTD.
    Inventors: Hyun Ju La, Yun Ji Lee, Gi Back Lee, Won Jang Jeong, Jin Seok Choi, Dae Hyuk Choi
  • Patent number: 9893294
    Abstract: 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: Grant
    Filed: November 22, 2011
    Date of Patent: February 13, 2018
    Assignee: The Regents of the University of California
    Inventors: Gregory C. Welch, Corey V. Hoven, Thuc-Quyen Nguyen
  • Patent number: 9394226
    Abstract: 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: Grant
    Filed: October 1, 2014
    Date of Patent: July 19, 2016
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Yasushi Yamamoto, Yasutaka Yoshida, Hikaru Yatabe, Yoshihiro Yamauchi, Tetsurou Tsuji
  • Patent number: 9040175
    Abstract: 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: Grant
    Filed: June 8, 2011
    Date of Patent: May 26, 2015
    Assignee: NOVALED AG
    Inventors: Omrane Fadhel, Ramona Pretsch
  • Patent number: 9040720
    Abstract: 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: Grant
    Filed: November 11, 2013
    Date of Patent: May 26, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Harue Osaka, Takako Takasu, Hiroshi Kadoma, Yuko Kawata, Satoko Shitagaki, Hiromi Nowatari, Tsunenori Suzuki, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 9040718
    Abstract: 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: Grant
    Filed: January 22, 2010
    Date of Patent: May 26, 2015
    Assignee: The University of Rochester
    Inventors: Shaw H. Chen, Lichang Zeng, Thomas Yung-Hsin Lee
  • Patent number: 9040719
    Abstract: 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: Grant
    Filed: August 7, 2013
    Date of Patent: May 26, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroko Nomura, Harue Osaka, Takahiro Ushikubo, Satoshi Seo
  • Patent number: 9040176
    Abstract: 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: Grant
    Filed: March 14, 2013
    Date of Patent: May 26, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nam-Jin Kim, Chul-Hwan Park
  • Patent number: 9040172
    Abstract: 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: Grant
    Filed: June 1, 2010
    Date of Patent: May 26, 2015
    Assignee: Merck Patent GmbH
    Inventors: Amir Hossain Parham, Christof Pflumm, Teresa Mujica-Fernaud, Arne Buesing, Holger Heil
  • Patent number: 9034482
    Abstract: 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: Grant
    Filed: September 16, 2004
    Date of Patent: May 19, 2015
    Assignee: Merck Patent GmbH
    Inventors: Horst Vestweber, Anja Gerhard, Philipp Stössel
  • Patent number: 9034485
    Abstract: 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: Grant
    Filed: December 22, 2009
    Date of Patent: May 19, 2015
    Assignee: Merck Patent GmbH
    Inventors: Arne Buesing, Holger Heil, Philipp Stoessel, Amir Hossain Parham, Rocco Fortte, Jonas Valentin Kroeber
  • Patent number: 9034487
    Abstract: 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: Grant
    Filed: November 22, 2011
    Date of Patent: May 19, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Satoshi Seo
  • Patent number: 9028979
    Abstract: 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: Grant
    Filed: June 11, 2010
    Date of Patent: May 12, 2015
    Assignee: BASF SE
    Inventors: Christian Schildknecht, Christian Lennartz, Soichi Watanabe, Gerhard Wagenblast, Peter Murer, Thomas Schäfer, Natalia Chebotareva, Andrea Ricci, Kristina Bardon
  • Patent number: 9028980
    Abstract: 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: Grant
    Filed: July 15, 2013
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Tomohiro Abe, Futoshi Tanaka, Kazuki Okabe, Atsushi Takahashi, Koichiro Iida, Ichiro Imada
  • Patent number: 9028976
    Abstract: 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: Grant
    Filed: May 27, 2011
    Date of Patent: May 12, 2015
    Assignee: Futaba Corporation
    Inventors: Akira Ebisawa, Hajime Amano, Sumiko Kitagawa, Tetsushi Inoue
  • Patent number: 9023489
    Abstract: 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: Grant
    Filed: November 6, 2006
    Date of Patent: May 5, 2015
    Assignee: 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
  • Patent number: 9023491
    Abstract: Provided are a light-emitting element in which a driving voltage increase can be suppressed and a light-emitting device which has reduced power consumption by including the light-emitting element. The element includes an EL layer between an anode and a cathode, and has a first, a second, and a third layer between the cathode and the EL layer. The first layer is between and in contact with the cathode and the second layer and includes a hole-transport substance. The second layer is between and in contact with the first the third layers and includes a phthalocyanine-based material. The third layer is between and in contact with the second and EL layers and includes an alkali metal, an alkaline-earth metal, a rare-earth metal, an alkali metal compound, an alkaline-earth metal compound, or a rare-earth metal compound. The phthalocyanine-based material has a metal-oxygen bond.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: May 5, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiromi Nowatari, Satoshi Seo
  • Patent number: 9017827
    Abstract: A compound for an organic optoelectronic device, an organic light emitting diode, and a display device, the compound including sequentially combined substituents represented by the following Chemical Formulae 1 to 3:
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: April 28, 2015
    Assignee: Cheil Industries, Inc.
    Inventors: Sung-Hyun Jung, Hyung-Sun Kim, Ho-Jae Lee, Eun-Sun Yu, Mi-Young Chae, Ja-Hyun Kim
  • Patent number: 9017825
    Abstract: The present invention relates to anthracene derivatives which are suitable for use in organic electroluminescent devices, and to organic electroluminescent devices containing these anthracene derivatives.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 28, 2015
    Assignee: Merck Patent GmbH
    Inventors: Holger Heil, Arne Buesing, Philipp Stoessel
  • Patent number: 9017826
    Abstract: Porphyrin compounds are provided. The compounds may further comprise a fused polycyclic aromatic hydrocarbon or a fused heterocyclic aromatic. Fused polycyclic aromatic hydrocarbon s and fused heterocyclic aromatics may extend and broaden absorption, and modify the solubility, crystallinity, and film-forming properties of the porphyrin compounds. Additionally, devices comprising porphyrin compounds are also provided. The porphyrin compounds may be used in a donor/acceptor configuration with compounds, such as C60.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: April 28, 2015
    Assignees: The University of Southern California, The Regents of the University of Michigan
    Inventors: Stephen R. Forrest, Jeramy D. Zimmerman, Mark E. Thompson, Viacheslav Diev, Kenneth Hanson
  • Patent number: 9012041
    Abstract: A light-emitting element includes an EL layer between an anode and a cathode, and a first layer, a second layer, and a third layer between the cathode and the EL layer. The first layer provided between the cathode and the second layer is in contact with the cathode and the second layer, and includes a substance having a hole-transport property and an acceptor substance. The second layer provided between the first layer and the third layer is in contact with the first layer and the third layer, and includes a phthalocyanine-based material. The third layer provided between the second layer and the EL layer is in contact with the second layer and the EL layer, and includes an alkali metal, an alkaline-earth metal, a rare-earth metal, an alkali metal compound, an alkaline-earth metal compound, or a rare-earth metal compound.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: April 21, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiromi Nowatari, Satoshi Seo
  • Patent number: 9012038
    Abstract: A phosphorescent metal complex compound, a method for the preparation thereof and a radiation component, in particular an organic light emitting electrochemical cell (OLEEC) use a bidentate ligand containing a triazole unit. Some of the blue emitters shown here for the first time, in particular the class of iridium complex compounds presented here, are the bluest emitters that have ever existed.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: April 21, 2015
    Assignee: Osram GmbH
    Inventors: Luisa De Cola, David Hartmann, Wiebke Sarfert, Günter Schmid
  • Patent number: 9012035
    Abstract: Disclosed is an organic electroluminescence device having a longer drive life. The organic electroluminescence device includes a light emitting layer which contains a luminescent dye and a host material having a nitrogen-containing aromatic heterocyclic ring. The luminescence resulting from the hole transport layer adjacent to the light emitting layer is less than one-hundredth of the luminescence resulting from the luminescent dye.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 21, 2015
    Assignees: Pioneer Corporation, Mitsubishi Chemical Corporation
    Inventors: Taishi Tsuji, Shin Kawami, Hideki Sato, Masayoshi Yabe
  • Patent number: 9012042
    Abstract: A condensed-cyclic compound represented by Formula 1 below, an organic light-emitting device including the same, and a flat panel display apparatus including the organic light-emitting device: X1, Ar1, Ar2, Ar3, Ar4, Ar5, Ar6, Ar7, Ar8, Ar9, Ar10, Ar11, and Ar12 being described in the detailed description of the invention. The organic light-emitting device including an organic layer including the compound above has low driving voltage and high emission efficiency.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 21, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Yeon Kim, Seung-Gak Yang, Jeoung-In Yi, Jae-Yong Lee
  • Patent number: 9005773
    Abstract: A novel substance exhibiting phosphorescence is provided. The novel substance is an organometallic complex represented by General Formula (G1). In General Formula (G1), R1 represents a haloalkyl group having 1 to 9 carbon atoms which may have a substituent. In addition, R2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. M represents either a Group 9 element or a Group 10 element.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: April 14, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hideko Inoue, Tomoka Nakagawa, Nobuharu Ohsawa, Satoshi Seo
  • Patent number: 9005774
    Abstract: In one aspect, an organic light emitting diode device that includes a first electrode, a second electrode facing the first electrode, an emission layer interposed between the first electrode and the second electrode and an auxiliary layer interposed between either one of the first electrode and the second electrode and the emission layer, wherein the auxiliary layer includes a substituted or unsubstituted pyrene-based compound having at least one appended phenyl group is provided.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mie-Hwa Park, Tae-Shick Kim
  • Patent number: 9005779
    Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: April 14, 2015
    Assignee: Duk San Neolux Co., Ltd.
    Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
  • Patent number: 9005772
    Abstract: Compounds are provided that comprise a heterocyclic carbene ligand. In particular, an oxazole or a thioazole carbene are used in place of the traditional imidazole carbene. These compounds may be used in OLEDs to provide devices having improved properties, such as stability and color-tuning. Additionally, a novel methodology to synthesize heterocyclic carbene metal complexes is provided.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: April 14, 2015
    Assignee: Universal Display Corporation
    Inventors: Jui-Yi Tsai, Zeinab Elshenawy
  • Patent number: 9005778
    Abstract: There is provided a novel organic compound suitably used for a blue light-emitting device and an organic light-emitting device including the novel organic compound. The organic compound is an acephenanthryleno[4,5-k]benzo[e]acephenanthrylene derivative.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 14, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomonari Horikiri, Hiroyuki Tomono, Jun Kamatani