With Electrode Matrix Patents (Class 313/505)
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Patent number: 9105875Abstract: An organic light-emitting display apparatus including a substrate; an insulating layer disposed on the substrate; a first pixel electrode disposed on the insulating layer and including a reflecting layer; a pixel defining layer disposed around one end of the first pixel electrode and extending away from the first pixel electrode; a first intermediate layer disposed on the first pixel electrode and including an organic emission layer; an opposite electrode disposed on the first intermediate layer and the pixel defining layer and including a reflecting layer; and a first refractive layer disposed between the insulating layer and the pixel defining layer and having a refractivity greater than that of the insulating layer and the pixel defining layer. A first end of the first refractive layer is disposed to contact the first intermediate layer, and a second end of the refractive layer is disposed to face a portion of the opposite electrode.Type: GrantFiled: May 5, 2014Date of Patent: August 11, 2015Assignee: Samsung Display Co., Ltd.Inventors: Gee-Bum Kim, Min-Woo Kim, Hae-Yun Choi
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Patent number: 9099039Abstract: An organic electro luminescence display device includes a display panel including a plurality of pixels arranged at intersections of m columns and n rows, a data driver unit configured to generate data signals and to provide the data signals to the pixels, and a gate driver unit configured to generate a first luminescence control signal, a second luminescence control signal, and scan signals, wherein the scan signals are sequentially provided to the pixels by a row unit, the first luminescence control signal is provided to the pixels via the left-most side of the pixels of the display panel, and the second luminescence control signal is provided to the pixels via the right-most side of the pixels of the display panel.Type: GrantFiled: December 12, 2012Date of Patent: August 4, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Min Cheol Kim
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Patent number: 9095059Abstract: A display panel includes a periphery area, an active display area adjacent to the periphery, a driving chip disposed out of the active display area for driving the active display area, and a plurality of wires electrically connecting the driving chip and the active display area. The width of at least one wire at a portion adjacent to the driving chip is smaller than the width of the at least one wire at the other portion adjacent to the active display area.Type: GrantFiled: March 18, 2014Date of Patent: July 28, 2015Assignee: INNOLUX CORPORATIONInventors: Chun-Chih Chiu, Wei-Chung Lu
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Patent number: 9088001Abstract: Discussed are an organic light emitting display and a method for fabricating the same to improve color purity and efficiency. The organic light emitting display includes a substrate having first to third sub-pixels, first and second electrodes formed on the substrate, the first and second electrodes facing each other, a red light emitting layer formed in the first sub-pixel between the first and second electrodes, a green light emitting layer formed in the second sub-pixel between the first and second electrodes, and a blue common light emitting layer formed in the first to third sub-pixels between the first and second electrodes, wherein a thin film layer formed between the first electrode and the blue common light emitting layer and contacting the blue common light emitting layer includes a blue host.Type: GrantFiled: November 13, 2014Date of Patent: July 21, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Young-Ju Kim, Jeong-Kyun Shin, Hee-Jin Kim
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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: 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: 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: 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: 9035546Abstract: The organic light emitting display device includes an organic light emitting display panel and a data driver, wherein the organic light emitting display panel includes an active region which includes pixel driving TFTs for embodying an image and organic luminescent elements respectively connected with the pixel driving TFTs to emit light, a GIP region which includes a gate driver formed with a plurality of gate driving TFTs for respectively driving gate lines of the active region, a GND region formed between the GIP region and the active region to be formed with a base voltage line for supplying base voltage to the organic luminescent elements of the active region, and a sealant region formed with a sealant for attaching an upper substrate to a lower substrate, and wherein the GND region includes out-gassing blocking holes.Type: GrantFiled: December 27, 2011Date of Patent: May 19, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Hee-Dong Choi, Sam-Min Ko
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Patent number: 9024521Abstract: Disclosed herein is an organic EL display device, including: a lower electrode provided every first organic EL element for a blue color and every second organic EL element for another color on a substrate; a hole injection/transport layer provided every first and second organic EL elements; a second organic light emitting layer for another color provided on said hole injection/transport layer for said second organic EL element; a connection layer made of a low-molecular material and provided over an entire surface of said hole injection/transport layer for said second organic light emitting layer and said first organic EL element; a first organic light emitting layer for a blue color provided over an entire surface of said connection layer; and an electron injection/transport layer and an upper electrode provided over an entire surface of said organic light emitting layer in order.Type: GrantFiled: February 17, 2012Date of Patent: May 5, 2015Assignee: Sony CorporationInventors: Tadahiko Yoshinaga, Toshiki Matsumoto, Tomoyuki Higo
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Patent number: 9017829Abstract: The present invention relates to a material for an organic electroluminescent device, including a phenanthrocarbazole-based compound having a specific structure, and an organic electroluminescent device including the same. More specifically, the phenanthrocarbazole-based compound is applied as a material for a phosphorescent and fluorescent organic electroluminescent device, thereby providing an organic light emitting device with improved light emitting efficiency, luminance, thermal stability, driving voltage, lifetime and the like.Type: GrantFiled: May 6, 2011Date of Patent: April 28, 2015Assignee: Doosan CorporationInventors: Jin-Seok Hong, Eun Jung Lee, Shin Han Kim, Kyoung-Soo Kim
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Patent number: 9012034Abstract: An organic electroluminescence element includes at least a light-emitting layer between a pair of electrodes, wherein the light-emitting layer is divided into at least three layers, an intermediate layer containing an electron blocking material or a hole blocking material is disposed between the divided light-emitting layers, an Ea value of the electron blocking material is smaller than an Ea value of a host material of the divided light-emitting layer adjacent on a cathode side or an Ip value of the hole blocking material is larger than an Ip value of a host material of the divided light-emitting layer adjacent on the anode side of the intermediate layer, and a difference of ?Ea or ?Ip is controlled to specific range.Type: GrantFiled: September 26, 2007Date of Patent: April 21, 2015Assignee: UDC Ireland LimitedInventors: Masaru Kinoshita, Manabu Tobise
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Patent number: 9006968Abstract: A mounting substrate includes: a wiring substrate; and a plurality of optical elements mounted on a mounting surface of the wiring substrate, and each having a first electrode and a second electrode. The wiring substrate includes a support substrate, a plurality of first wires, and a plurality of second wires. The first wires and the second wires are provided within a layer between the support substrate and the mounting surface. The first wires are electrically connected with the first electrodes. The second wires are electrically connected with the second electrodes, and each have cross-sectional area larger than cross-sectional area of each of the first wires.Type: GrantFiled: July 2, 2013Date of Patent: April 14, 2015Assignee: Sony CorporationInventors: Toshihiko Watanabe, Yoichi Ohshige, Masato Doi, Akiyoshi Aoyagi
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Patent number: 9005779Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.Type: GrantFiled: May 26, 2011Date of Patent: April 14, 2015Assignee: Duk San Neolux Co., Ltd.Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
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Patent number: 9006967Abstract: An organic light-emitting display apparatus includes a plurality of pixels, each defined by a scan line, a data line, and a power supply line, a plurality of control lines branching off of one wire in a first direction and simultaneously transferring control signals to the plurality of pixels; and a plurality of repair bridges placed between neighboring ones of the plurality of control lines, each of the plurality of repair bridges including a first bridge connected to one of the neighboring ones of the plurality of control lines and a second bridge connected to another one of the neighboring control lines.Type: GrantFiled: August 20, 2012Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Guang-Hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Seong-Jun Kim, Ga-Young Kim
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Patent number: 9005777Abstract: A heterocyclic compound represented by Formula 1 below, and an organic light-emitting diode including the heterocyclic compound, and a flat display device including the organic light-emitting diode. wherein Ar1 to Ar4, X1, X2, Y1, Y2, L1, and m are defined as in the specification.Type: GrantFiled: March 7, 2012Date of Patent: April 14, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hye-Jin Jung, Seok-Hwan Hwang, Young-Kook Kim, Jin-O Lim, Sang-Hyun Han, Jong-Hyuk Lee
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Patent number: 9005775Abstract: A composition includes: (B) an arylamine derivative having at least one polymerizable group; and (A) a cyano group-free azo based polymerization initiator.Type: GrantFiled: September 21, 2011Date of Patent: April 14, 2015Assignee: FUJIFILM CorporationInventors: Naoyuki Hayashi, Ryo Nishio, Saki Takada
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Patent number: 8999527Abstract: An electronic device employing a polymeric anode with high work function.Type: GrantFiled: May 25, 2012Date of Patent: April 7, 2015Assignee: Postech Academy-Industry FoundationInventors: Tae-Woo Lee, Seong-Hoon Woo
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Patent number: 8999524Abstract: An organic light-emitting device includes a first electrode, a mixed organic layer, an emission layer, an electron transport layer, and a second electrode. The mixed organic layer contains a fluorene derivative and a pyrazine derivative, and the electron transport layer contains a lithium quinolate and a pyridine derivative.Type: GrantFiled: April 29, 2011Date of Patent: April 7, 2015Assignee: Samsung Display Co., Ltd.Inventors: Dong-Heon Kim, Tae-Shick Kim, Kwan-Hee Lee, Min-Seung Chun, Jung-Ha Son, Jae-Hyun Kwak, Mi-Kyung Kim, Choon-Woo Lim
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Patent number: 8999528Abstract: A condensation compound is represented by Formula 1, 2, or 3 where R1 to R24 and A to F are further defined in the detailed description.Type: GrantFiled: January 8, 2013Date of Patent: April 7, 2015Assignee: Samsung Display Co., Ltd.Inventors: So-Yeon Kim, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, Sun-Young Lee, Ji-Youn Lee, Jin-Young Yun
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Patent number: 8999526Abstract: An organic photoelectric device may include an anode and a cathode configured to face each other, and an active layer between the anode and cathode, wherein the active layer includes a quinacridone derivative and a thiophene derivative having a cyanovinyl group.Type: GrantFiled: April 13, 2012Date of Patent: April 7, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang Hee Lee, Kyu Sik Kim, Kyung Bae Park, Dong-Seok Leem, Seon Jeong Lim
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Patent number: 8999530Abstract: The present invention provides a new compound and an organic electronic device using the same. The compound according to the present invention may serve as hole injection, hole transporting, electron injection and transporting, and light emitting materials and the like in an organic electronic device comprising an organic light emitting device, and the organic electronic device according to the present invention shows excellent properties in terms of efficiency, driving voltage and service life.Type: GrantFiled: June 12, 2012Date of Patent: April 7, 2015Assignee: LG Chem, Ltd.Inventors: Changhwan Shin, Kongkyeom Kim, Dong Hoon Lee, Jungi Jang, Minseung Chun
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Patent number: 8993123Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material in the emitting layer and/or as electron-transport material.Type: GrantFiled: February 13, 2009Date of Patent: March 31, 2015Assignee: Merck Patent GmbHInventors: Arne Buesing, Holger Heil, Philipp Stoessel
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Patent number: 8993130Abstract: The present invention discloses a novel organic compound is represented by the following formula(I), the organic EL device employing the organic compound as host material or dopant material of emitting layer and/or as electron transporting material can lower driving voltage, prolong half-lifetime and increase the efficiency. wherein m represent an integer of 0 to 10, n represent an integer of 0 to 2. X is a divalent bridge selected from the atom or group consisting from O, S, C(R5)2, N(R5), Si(R5)2. Ar, R1 to R4 are substituents and the same definition as described in the present invention.Type: GrantFiled: December 17, 2012Date of Patent: March 31, 2015Inventors: Feng-Wen Yen, Cheng-Hao Chang
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Patent number: 8986852Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material or dopant in the emitting layer and/or as hole-transport material and/or as electron-transport material.Type: GrantFiled: April 29, 2008Date of Patent: March 24, 2015Assignee: Merck Patent GmbHInventors: Philipp Stoessel, Arne Buesing, Holger Heil
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Patent number: 8986857Abstract: Provided is a novel compound which can be used for a transport layer or as a host material or a light-emitting material in a light-emitting element and with which a high-performance light-emitting element can be manufactured. A dibenzo[c,g]carbazole compound in which an aryl group having 14 to 30 carbon atoms and including at least anthracene is bonded to nitrogen of a dibenzo[c,g]carbazole derivative is synthesized. By use of the dibenzo[c,g]carbazole compound, a light-emitting element having very good characteristics can be obtained.Type: GrantFiled: July 13, 2012Date of Patent: March 24, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroki Suzuki, Satoshi Seo, Sachiko Kawakami, Tsunenori Suzuki
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Patent number: 8986858Abstract: Disclosed is an organic electroluminescent device (organic EL device) that is improved in luminous efficiency, sufficiently secures driving stability, and has a simple configuration. This organic EL device comprises organic layers between an anode and a cathode piled one upon another on a substrate and at least one organic layer selected from a light-emitting layer, a hole-transporting layer, an electron-transporting layer, and a hole-blocking layer contains a carbazole compound represented by the following formula (1). In the case where the light-emitting layer of the organic electroluminescent device contains a phosphorescent dopant and a host material, it is the carbazole compound that is contained as the host material.Type: GrantFiled: January 27, 2011Date of Patent: March 24, 2015Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.Inventors: Masashi Tada, Junya Ogawa, Takahiro Kai, Megumi Matsumoto, Yasuhisa Tsutsumi
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Patent number: 8980443Abstract: Disclosed is an organic electroluminescent element which can be produced by a wet process, has improved laminated structure, and also has improved external quantum efficiency and an improved service life. The organic electroluminescent element comprises at least an anode; a cathode and a laminated structure intercalated between the anode and the cathode, all of which are arranged on a substrate, wherein the laminated structure has at least four layers formed by a wet process, and wherein the layers produced by the wet process include at least a hole injection layer, a hole transport layer and a light-emitting layer. The organic electroluminescent element is characterized in that the hole injection layer comprises an electrically conductive polymer, the hole transport layer comprises a polymeric compound having a repeating unit represented by general formula (1), and the polymeric compound has a weight average molecular weight of 50,000 to 200,000 in terms of polystyrene content.Type: GrantFiled: April 14, 2010Date of Patent: March 17, 2015Assignee: Konica Minolta Holdings, Inc.Inventors: Kazutoshi Murota, Toshihiko Iwasaki
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Patent number: 8980442Abstract: There are provided an aromatic monoamine derivative having a fluorene structure-containing organic group and an aromatic hydrocarbon group-containing organic group, and an organic electroluminescent element containing an organic thin film layer composed of a single layer or plural layers while including at least a light emitting layer, the organic thin film layer being between a cathode and an anode, wherein at least one layer of the organic thin film layer, particularly a hole transport layer, contains the aromatic amine derivative alone or as a component of a mixture. An organic electroluminescent element which maintains high luminous efficiency even if exposed to a high temperature environment, and has a low driving voltage and a long emission lifetime, and an aromatic amine derivative capable of realizing the organic electroluminescent element are provided.Type: GrantFiled: March 18, 2010Date of Patent: March 17, 2015Assignee: Mitsui Chemicals, Inc.Inventors: Nobuhiro Yabunouchi, Tomoki Kato, Takahiro Fujiyama, Yoshiyuki Totani
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Patent number: 8976322Abstract: An Active Matrix Organic Light Emitting Diode (AMOLED) display and a method of controlling a display thereof are provided. The AMOLED display includes an input unit, a controller, a display unit for displaying a low power mode screen, by enabling the controller to turn off an AMOLED and to turn on a cholesteric Liquid Crystal Display (LCD) in a low power mode, and for displaying a high picture quality mode screen, by enabling the controller to turn on the AMOLED and to turn off the cholesteric LCD in a high picture quality mode. When used in an indoor environment, the AMOLED display can operate in the high picture quality mode, and when used in an outdoor environment or as an e-book reader, the AMOLED display can operate in the low power mode.Type: GrantFiled: July 19, 2011Date of Patent: March 10, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Jung Hyun Kim, Dong Sub Kim
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Patent number: 8975815Abstract: The invention relates to a method for making an electronic display device (1) having a screen (3) covered by a protection plate, and to a substrate (2) covered by said screen for obtaining such a device. The method comprises the following steps: a) applying glue (10) at the non cross-linked state substantially on the entire surface of the screen and/or the assembling surface (11a) of the plate (11) following a deposit on the screen connection area (5) of at least one organic layer (15) for protecting the connection area from the glue; applying the assembling surface against the screen via the glue; c) emitting a radiation through the plate for cross-linking the glue; and d) removing a portion of the plate covering the connection area so that the latter can be electrically accessible, the protection layer being removed from the connection area upon said removal or during a further surface processing step.Type: GrantFiled: January 12, 2009Date of Patent: March 10, 2015Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Christophe Prat, Tony Maindron
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Patent number: 8969884Abstract: A thin film transistor element is formed in each of a first aperture and a second aperture defined by partition walls, which further define a third aperture that is adjacent to the first aperture with a gap therebetween and is located in a direction, from the first aperture, differing from a direction of the second aperture. In plan view, at a bottom portion of the first aperture, a center of area of a liquid-philic layer portion is offset from a center of area of the bottom portion in a direction differing from a direction of the third aperture, and at a bottom portion of one of the first and second apertures, a center of area of a liquid-philic layer portion is offset from a center of area of the bottom portion in a direction differing from a direction of the other one of the first and second apertures.Type: GrantFiled: August 16, 2013Date of Patent: March 3, 2015Assignee: Panasonic CorporationInventors: Yuko Okumoto, Akihito Miyamoto, Takaaki Ukeda
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Patent number: 8970106Abstract: According to one aspect of the present invention, a laminated structure of conductive transparent oxide layers containing silicon or silicon oxide is applied as an electrode on the side of injecting a hole (a hole injection electrode; an anode) instead of the conventional conductive transparent oxide layer such as ITO. In addition, according to another aspect of the invention, a laminated structure of conductive transparent oxide layers containing silicon or silicon oxide, each of which content is different, is applied as a hole injection electrode. Preferably, silicon or a silicon oxide concentration of the conductive layer on the side where it is connected to a TFT ranges from 1 atomic % to 6 atomic % and a silicon or silicon oxide concentration on the side of a layer containing an organic compound ranges from 7 atomic % to 15 atomic %.Type: GrantFiled: January 30, 2012Date of Patent: March 3, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Toru Takayama, Naoya Sakamoto, Kengo Akimoto, Keiji Sato, Tetsunori Maruyama
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Patent number: 8962160Abstract: The present invention discloses a novel material is represented by the following formula (A), the organic EL device employing the material as blue emitting layer can lower driving voltage, prolong half-lifetime and increase the efficiency. Wherein m represent an integer of 0 to 4, R1 and R2 are identical or different. R1 and R2 are independently selected from the group consisting of a hydrogen atom, alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms. R3 and R4 are identical or different, R3 and R4 are independently selected from the group consisting of hydrogen atom, a halide, a substituted or unsubstituted arylamine, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.Type: GrantFiled: December 26, 2012Date of Patent: February 24, 2015Assignee: Feng-Wen YenInventors: Feng-Wen Yen, Cheng-Hao Chang
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Patent number: 8962157Abstract: Compounds of formula I may be used in optoelectronic devices wherein R1, R2 and R4 are, independently at each occurrence, H, a C1-C20 aliphatic radical, a C3-C20 aromatic radical, or a C3-C20 cycloaliphatic radical; R3 is H or a is, independently at each occurrence, 1 or 2; b is, independently at each occurrence, an integer ranging from 0-3; c is, independently at each occurrence, an integer ranging from 0-4; Ar is independently at each occurrence, H, or heteroaryl; and at least two of Ar are heteroaryl.Type: GrantFiled: August 19, 2009Date of Patent: February 24, 2015Assignee: General Electric CompanyInventors: Qing Ye, Jie Liu, Kelly Scott Chichak, Yangang Liang
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Patent number: 8963414Abstract: According to one embodiment, an organic electroluminescent device includes first and second electrodes, an interconnection layer, an organic light emitting layer and a light scattering layer. The first electrode has includes first, second and third portions. The interconnection layer is electrically connected to the first electrode. The third portion overlays the interconnection layer when projected to the plane. The first and second portions do not overlay the interconnection layer. The second electrode overlays the second portion and does not overlay the first and the third portions. The organic light emitting layer is provided between the second portion and the second electrode. The second portion is disposed between the fourth portion of the light scattering layer and the second electrode. The fifth portion of the light scattering layer overlays the interconnection layer. The light scattering layer does not overlay the first portion when projected to the plane.Type: GrantFiled: December 12, 2012Date of Patent: February 24, 2015Assignee: Kabushiki Kaisha ToshibaInventors: Tomoaki Sawabe, Tomio Ono, Keiji Sugi, Shintaro Enomoto
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Patent number: 8963418Abstract: Disclosed herein is a display panel based on active matrix driving having a display area made up of N pixel control lines, M video signal lines orthogonally intersecting the N pixel control lines, and pixel circuits arranged at intersections between the N pixel control lines and M video signal lines, wherein positional identification patterns are arranged on every k (k being a natural number) pixel control lines inside each of the pixel circuits.Type: GrantFiled: May 9, 2014Date of Patent: February 24, 2015Assignee: Sony CorporationInventor: Kazuo Nakamura
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Patent number: 8957442Abstract: A technique of manufacturing a display device with high productivity is provided. In addition, a high-definition display device with high color purity is provided. By adjusting the optical path length between an electrode having a reflective property and a light-emitting layer by the central wavelength of a wavelength range of light passing through a color filter layer, the high-definition display device with high color purity is provided without performing selective deposition of light-emitting layers. In a light-emitting element, a plurality of light-emitting layers emitting light of different colors are stacked. The closer the light-emitting layer is positioned to the electrode having a reflective property, the shorter the wavelength of light emitted from the light-emitting layer is.Type: GrantFiled: February 8, 2012Date of Patent: February 17, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Toshiki Sasaki, Nobuharu Ohsawa, Takahiro Ushikubo, Shunpei Yamazaki
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Patent number: 8957578Abstract: An organic light emitting display device may include a substrate, a first electrode, a light emitting structure, a second electrode and a nanostructure. The first electrode may be disposed over the substrate. The light emitting structure may be disposed over the first electrode. The second electrode may be disposed over the light emitting structure. A plurality of nanoparticles may be disposed over the second electrode. The plurality of nanoparticles is capable of causing surface plasmon resonance by light. At least some of the plurality of nanoparticles have materials, sizes and shapes determined to cause surface plasmon resonance by light having a predetermined wavelength and emitted from the light emitting structure.Type: GrantFiled: July 3, 2012Date of Patent: February 17, 2015Assignee: Samsung Display Co., Ltd.Inventor: Hyun-Shik Lee
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Patent number: 8957574Abstract: The present invention relates to an organic electro-luminescence display device and a method for fabricating the same, in which damage to a pad portion is prevented for improving yield. The organic electro-luminescence display device includes a thin film transistor array unit formed on a front surface of a lower substrate and a pad portion extended from the thin film transistor array unit, an organic EL array unit on the thin film transistor array unit having a matrix of organic EL cells, and a protective member for protecting the organic EL array unit and the thin film transistor array unit and exposing the pad portion to an outside, wherein the lower substrate has a thickness of a first region overlapped with the pad portion thicker than a thickness of a second region overlapped with the thin film transistor array unit.Type: GrantFiled: October 24, 2012Date of Patent: February 17, 2015Assignee: LG Display Co., Ltd.Inventors: Jae-Young Lee, Tae-Yeon Yoo
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Patent number: 8951647Abstract: The present invention relates to organic electroluminescent devices which comprise fluorene derivatives and spirobifluorene derivatives as matrix material for phosphorescent emitters.Type: GrantFiled: July 8, 2009Date of Patent: February 10, 2015Assignee: Merck Patent GmbHInventors: Amir Hossain Parham, Joachim Kaiser, Anja Gerhard, Jonas Valentin Kroeber
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Patent number: 8951645Abstract: A stacked organic light emitting device that includes an anode connected to an external power source, a cathode connected to the external power source, at least two light emitting sections aligned between the anode and the cathode, including a light emitting layer, and an internal electrode aligned between the light emitting sections. The internal electrode is a single-layered internal electrode which is made from one selected from the group consisting of a metal, alloys of the metal, and metal oxides thereof, having a work function below 4.5 eV, each light emitting section includes an organic material layer containing an organic material having an electron affinity above 4 eV, and the organic material layer is formed between the light emitting layer of the light emitting section and the electrode facing the anode connected to the external power source in two electrodes which make contact with the light emitting section.Type: GrantFiled: April 7, 2005Date of Patent: February 10, 2015Assignee: LG Chem, Ltd.Inventors: Ji Weon Jeong, Young Chul Lee, Jeoung Kwen Noh, Yun Hye Hahm, Dong Seob Jeong, Jun Gi Jang
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Patent number: 8945724Abstract: A novel nitrogen-containing heterocyclic derivative having a specific structure. An organic electroluminescence device comprises an organic thin-film layer which is disposed between a cathode and an anode and comprises one or more layers having a light emitting layer. At least one layer of the organic thin-film layer comprises the nitrogen-containing heterocyclic derivative. The organic electroluminescence device exhibits a high luminance and a high luminous efficiency even at a low driving voltage.Type: GrantFiled: December 24, 2008Date of Patent: February 3, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Yamamoto, Takashi Arakane
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Patent number: 8946733Abstract: An organic light-emitting display apparatus that improves image quality characteristics, the organic light-emitting display apparatus including: a substrate; a first electrode formed on the substrate; a pixel-defining layer (PDL) formed on the first electrode to expose a set or predetermined region of the first electrode; an intermediate layer formed in the exposed predetermined region of the first electrode and including an organic emission layer; and a second electrode having a light-scattering face facing the substrate or facing oppositely away from the substrate, the second electrode being disposed on the intermediate layer.Type: GrantFiled: February 3, 2012Date of Patent: February 3, 2015Assignee: Samsung Display Co., Ltd.Inventors: Valeriy Prushinskiy, Len Kaplan, Se-Ho Cheong, Won-Sik Hyun, Min-Soo Kim, Kyong-Tae Park, Byoung-Seong Jeong, Jang-Seok Ma
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Patent number: 8946730Abstract: In a thin film transistor device, partition walls define first, second, and third apertures. In plan view, at a bottom portion of the first aperture, a center of a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction differing from a direction of the third aperture, and at a bottom portion of one of the first and second apertures, a center a total of areas of a source electrode portion and a drain electrode portion is offset from a center of area of the bottom portion in a direction differing from a direction of the other one of the first and second apertures.Type: GrantFiled: August 16, 2013Date of Patent: February 3, 2015Assignee: Panasonic CorporationInventors: Yuko Okumoto, Akihito Miyamoto, Takaaki Ukeda
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Patent number: 8945728Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.Type: GrantFiled: October 7, 2013Date of Patent: February 3, 2015Assignee: Mitsubishi Chemical CorporationInventors: Koichi Ishibashi, Hideki Gorohmaru, Wataru Shimizu, Tomomi Okamoto
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Patent number: 8940416Abstract: 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: May 17, 2012Date of Patent: January 27, 2015Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Harue Osaka, Takahiro Ushikubo, Nobuharu Ohsawa, Satoshi Seo, Tsunenori Suzuki
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Patent number: 8940407Abstract: The present invention relates to the improvement of organic electronic devices, in particular electroluminescent devices, by using compounds which can have a plurality of isomers, where one of these isomers is present in excess.Type: GrantFiled: November 3, 2005Date of Patent: January 27, 2015Assignee: Merck Patent GmbHInventors: Philipp Stoessel, Esther Breuning, Horst Vestweber, Holger Heil
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Patent number: 8940412Abstract: An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.Type: GrantFiled: December 22, 2009Date of Patent: January 27, 2015Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yoriyuki Takashima, Toshihiro Iwakuma, Toshinari Ogiwara, Chishio Hosokawa, Mitsunori Ito
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Patent number: 8933623Abstract: An organic EL device includes a substrate, an organic EL element that is formed on the substrate and is provided with a first electrode, a light emitting functional layer, and a second electrode having transparent conductivity to emit light to the second electrode side, a color filter that is formed on the second electrode side in a pixel area where the organic EL element emits the light, and a partition that is formed in a light shielding area that is an area other than the pixel area. The color filter is provided with any one of a red color filter, a green color filter, and a blue color filter. At least one color filter of the three color filters constitutes at least a part of the partition.Type: GrantFiled: August 4, 2011Date of Patent: January 13, 2015Assignee: Seiko Epson CorporationInventors: Yuki Hanamura, Shinichi Iwata, Masanori Iwasaki, Daisuke Nishioka