Comprising Transparent Conductive Layers (e.g., Transparent Conductive Oxides (tco), Indium Tin Oxide (ito)) (epo) Patents (Class 257/E33.064)
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Patent number: 8530923Abstract: A light-emitting diode chip (1) with a semiconductor layer sequence (2) is described, which is contacted electrically by contacts (5) via a current spreading layer (3). The contacts (5) cover around 1%-8% of the surface of the semiconductor layer sequence (2). The contacts (5) consist for example of separate contact points (51), which are arranged at the nodes of a regular grid (52) with a grid constant of 12 ?m. The current spreading layer (3) contains for example indium-tin oxide, indium-zinc oxide or zinc oxide and has a thickness in the range from 15 nm to 60 nm.Type: GrantFiled: April 28, 2009Date of Patent: September 10, 2013Assignee: OSRAM Opto Semiconductor GmbHInventors: Matthias Sabathil, Lutz Hoeppel, Andreas Weimar, Karl Engl, Johannes Baur
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Patent number: 8530910Abstract: A transparent organic light emitting display device having an improved transmittance, in which transmittance of external light is increased, the organic light emitting display device including: a substrate having transmitting regions interposed between pixel regions; thin film transistors positioned on a first surface of the substrate and respectively disposed in the pixel regions of the substrate; a passivation layer covering thin film transistors; pixel electrodes formed on the passivation layer and respectively electrically connected to the thin film transistors, the pixel electrodes are respectively located in an area corresponding to the pixel regions, and are disposed to respectively overlap and cover the thin film transistors; an opposite electrode facing the pixel electrodes and formed to be able to transmit light, the opposite electrode is located in the transmitting regions and the pixel regions and includes a first opening formed on a location corresponding to at least a portion of respective onesType: GrantFiled: January 20, 2011Date of Patent: September 10, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-Woo Song, Jong-Hyuk Lee, Chaun-Gi Choi, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jae-Heung Ha
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Patent number: 8525181Abstract: A thin-film transistor (TFT) array substrate includes an active layer on a substrate and a lower electrode of a capacitor on the same level as the active layer, a first insulation layer on the active layer and the lower electrode and having a first gap exposing an area of the lower electrode; a gate electrode of the TFT on the first insulation layer, and an upper electrode of the capacitor on the lower electrode and the first insulation layer, the upper electrode having a second gap that exposes the first gap and a portion of the first insulation layer; a second insulation layer disposed between the gate electrode and source electrode and drain electrodes, and not disposed on the upper electrode, in the first gap of the first insulation layer, or in the second gap of the lower electrode.Type: GrantFiled: December 30, 2011Date of Patent: September 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sung Ho Kim, Min-Chul Shin
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Patent number: 8519435Abstract: A photovoltaic cell is fabricated onto a polyimide film using an unbalanced RF magnetron sputtering process. The sputtering process includes the addition of 0.05% to 0.5% oxygen to an inert gas stream. Portions of the photovoltaic cell are exposed to an elevated temperature CdCl2 treatment which is at or below the glass transition temperature of the polyimide film.Type: GrantFiled: June 8, 2010Date of Patent: August 27, 2013Assignee: The University of ToledoInventors: Anthony Vasko, Kristopher Wieland, James Walker, Alvin Compaan
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Patent number: 8519407Abstract: An organic light-emitting display includes a substrate including a pixel region and a transistor region; a first transparent electrode and a second transparent electrode formed over the pixel region and the transistor region of the substrate, respectively; a gate electrode formed over the second transparent electrode; a gate insulating film formed over the gate electrode; a semiconductor layer formed over the gate insulating film; a source and drain electrode having an end connected to the semiconductor layer and the other end connected to the first transparent electrode; a pixel defining layer disposed over the source and drain electrode to cover the source and drain electrode and having an opening disposed over the first transparent electrode; a light-blocking layer formed over the pixel defining layer; and an organic light-emitting layer formed over the first transparent electrode.Type: GrantFiled: January 12, 2012Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventor: Yong-Woo Park
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Patent number: 8519417Abstract: Disclosed are a light emitting device and a method of manufacturing the same. The light emitting device includes a plurality of compound semiconductor layers that includes a first conductive semiconductor layer, an active layer under the first conductive semiconductor layer, and a second conductive semiconductor layer under the active layer. An electrode is formed on the compound semiconductor layers. A groove is formed at an upper portion of the compound semiconductor layers. An electrode layer is formed under the compound semiconductor layers.Type: GrantFiled: March 16, 2010Date of Patent: August 27, 2013Assignee: LG Innotek Co., Ltd.Inventor: Hwan Hee Jeong
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Patent number: 8519395Abstract: A display device according to an exemplary embodiment includes: gate wires, at least one of the gate wires having a first multi-layered structure including a first transparent conductive layer formed on the substrate and a first metal layer formed on the first transparent conductive layer and at least another one of the gate wires having a first single-layered structure formed with the first transparent conductive layer; a semiconductor layer formed on a part of the gate wires; and data wires with at least one of the data wires having a second multi-layered structure including a second transparent conductive layer formed on the semiconductor layer and a second metal layer formed on the second transparent conductive layer and at least another one of the data wires having a second single-layered structure formed with the second transparent conductive layer.Type: GrantFiled: April 26, 2011Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventors: Min-Sung Kwon, Joo-Sun Yoon
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Patent number: 8513039Abstract: A method for fabricating a semiconductor lighting chip includes steps of: providing a substrate; forming a first etching layer on the substrate; forming a connecting layer on the first etching layer; forming a second etching layer on the connecting layer; forming a lighting structure on the second etching layer; and etching the first etching layer, the connecting layer, the second etching layer and the lighting structure, wherein an etching rate of the first etching layer and the second etching layer is lager than that of the connecting layer and the lighting structure, thereby to form the connecting layer and the lighting structure each with an inverted frustum-shaped structure.Type: GrantFiled: August 24, 2011Date of Patent: August 20, 2013Assignee: Advanced Optoelectronic Technology, Inc.Inventors: Po-Min Tu, Shih-Cheng Huang, Tzu-Chien Hung, Ya-Wen Lin
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Patent number: 8513687Abstract: A semiconductor light emitting device, includes: a stacked structure unit including a first semiconductor layer, a second semiconductor layer, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer; a first electrode provided on a first major surface of the stacked structure unit on the second semiconductor layer side to connect to the first semiconductor layer; and a second electrode provided on the first major surface of the stacked structure unit to connect to the second semiconductor layer. The second electrode includes: a first film provided on the second semiconductor layer; and a second film provided on a rim of the first film on the second semiconductor layer. The first film has a relatively low contact resistance with the second semiconductor layer. The second film has a relatively high contact resistance with the second semiconductor layer.Type: GrantFiled: August 27, 2009Date of Patent: August 20, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hiroshi Katsuno, Yasuo Ohba, Kei Kaneko, Mitsuhiro Kushibe
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Patent number: 8513698Abstract: An LED package includes a substrate, an LED chip and an encapsulation. The substrate includes a main plate, and a first soldering pad and a second soldering pad attached to the main plate. The first soldering pad and the second soldering pad are separated from each other. The LED chip includes a first electrode and a second electrode. The LED chip is mounted on the substrate with the second electrode electrically connected to the second soldering pad of the substrate. The encapsulation includes a main body enclosing the LED chip and an electric connecting unit electrically connecting the first electrode of the LED chip and the first soldering pad.Type: GrantFiled: June 30, 2011Date of Patent: August 20, 2013Assignee: Advanced Optoelectronic Technology, Inc.Inventors: Shiun-Wei Chan, Chih-Hsun Ke
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Publication number: 20130200421Abstract: Illustrative embodiments of hybrid transparent conducting materials and applications thereof are disclosed. In one illustrative embodiment, a hybrid transparent conducting material may include a polycrystalline film and a plurality of conductive nanostructures randomly dispersed in the polycrystalline film. In another illustrative embodiment, a photovoltaic cell may include a transparent electrode comprising polycrystalline graphene that is percolation doped with metallic nanowires, where the metallic nanowires do not form a percolation network for charge carriers across the transparent electrode.Type: ApplicationFiled: February 7, 2012Publication date: August 8, 2013Inventors: Changwook Jeong, Mark Lundstrom, Muhammad Ashraful Alam
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Patent number: 8501513Abstract: An optoelectronic semiconductor component comprising a semiconductor body (10) and a current spreading layer (3) is specified. The current spreading layer (3) is applied to the semiconductor body (10) at least in places. In this case, the current spreading layer (3) contains a metal (1) that forms a transparent electrically conductive metal oxide (2) in the current spreading layer, and the concentration (x) of the metal (1) decreases from that side of the current spreading layer (3) which faces the semiconductor body (10) toward that side of said current spreading layer which is remote from the semiconductor body (10). A method for producing such a semiconductor component is also disclosed.Type: GrantFiled: September 14, 2006Date of Patent: August 6, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Magnus Ahlstedt, Dieter Eissler, Robert Walter, Ralph Wirth
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Patent number: 8502225Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.Type: GrantFiled: August 30, 2010Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama
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Patent number: 8502234Abstract: An integrated device including a vertical III-nitride FET and a Schottky diode includes a drain comprising a first III-nitride material, a drift region comprising a second III-nitride material coupled to the drain and disposed adjacent to the drain along a vertical direction, and a channel region comprising a third III-nitride material coupled to the drift region. The integrated device also includes a gate region at least partially surrounding the channel region, a source coupled to the channel region, and a Schottky contact coupled to the drift region. The channel region is disposed between the drain and the source along the vertical direction such that current flow during operation of the vertical III-nitride FET and the Schottky diode is along the vertical direction.Type: GrantFiled: November 4, 2011Date of Patent: August 6, 2013Assignee: Agovy, Inc.Inventors: Isik C. Kizilyalli, Hui Nie, Andrew P. Edwards, Linda Romano, David P. Bour, Richard J. Brown, Thomas R. Prunty
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Group III nitride semiconductor light-emitting device and method of manufacturing the same, and lamp
Patent number: 8502254Abstract: Disclosed is a group III nitride semiconductor light-emitting device which suppresses electric current concentration in a light-transmitting electrode and a semiconductor layer directly below an electrode to enhance light emission efficiency, suppresses light absorption in the electrode or light loss due to multiple reflection therein to enhance light extraction efficiency, and has superior external quantum efficiency and electric characteristics. A semiconductor layer (20), in which an n-type semiconductor layer (4), a light-emitting layer (5) and a p-type semiconductor layer (6) are sequentially layered, is formed on a single-crystal underlayer (3) which is formed on a substrate (11). A light-transmitting electrode (7) is formed on the p-type semiconductor layer (6). An insulation layer (15) is formed on at least a part of the p-type semiconductor layer (6), and the light-transmitting electrode (7) is formed to cover the insulation layer (15).Type: GrantFiled: March 5, 2010Date of Patent: August 6, 2013Assignee: Toyoda Gosei Co., Ltd.Inventors: Daisuke Hiraiwa, Hironao Shinohara -
Patent number: 8497199Abstract: The present invention relates to a method for fabricating a thin film formed with a uniform single-size monolayer of spherical AZO nanoparticles. Because of its own advantages in cost and transparency, Al-doped ZnO (AZO) transparent conductive film is becoming the most commonly used transparent conducting oxide (TCO) replacement for solar cells. In this invention, a colloidal chemical means is adopted for enabling a chemical reaction between metal salts, water, and polyhydric alcohols at a room-temperature environment, and thereby, a process for fabricating spherical AZO nanoparticles in a diameter ranged between 100 nm to 400 nm according to different parameter configurations can be achieved while controlling the actual Al/Zn ratio to be ranged between 0.1% to 3%. In addition, a dip coating means is adopted for densely distributing the spherical AZO nanoparticles on a substrate into a monolayer close-packed structure.Type: GrantFiled: August 8, 2012Date of Patent: July 30, 2013Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Der-Jun Jan, Shih-Shou Lo, Chen-Yu Lin
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Patent number: 8486738Abstract: A light emitting device having auto-cloning photonic crystal structures comprises a substrate, a first semiconductor layer, an active emitting layer, a second semiconductor layer and a saw-toothed multilayer film comprising auto-cloning photonic crystal structures. The saw-toothed multilayer film provides a high reflection interface and a diffraction mechanism to prevent total internal reflection and enhance light extraction efficiency. The manufacturing methods of the light emitting device having auto-cloning photonic crystal structures are also presented.Type: GrantFiled: June 1, 2011Date of Patent: July 16, 2013Assignee: National Tsing Hua UniversityInventors: Shiuh Chao, Hao-Min Ku, Chen-Yang Huang
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Patent number: 8476648Abstract: The present invention relates to a light emitting device and a method of manufacturing the light emitting device. According to the present invention, the light emitting device comprises a substrate, an N-type semiconductor layer formed on the substrate, and a P-type semiconductor layer formed on the N-type semiconductor layer, wherein a side surface including the N-type or P-type semiconductor layer has a slope of 20 to 80° from a horizontal plane.Type: GrantFiled: June 22, 2006Date of Patent: July 2, 2013Assignee: Seoul Opto Device Co., Ltd.Inventors: Jong Lam Lee, Jae Ho Lee, Yeo Jin Yoon, Eu Jin Hwang, Dae Won Kim
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Publication number: 20130161632Abstract: An OLED apparatus including a thin film transistor including an activation layer, a gate electrode insulated from the activation layer and including a lower gate electrode and an upper gate electrode, an interlayer insulation film covering the gate electrode, and a source and drain electrode on the insulation film and contacting the activation layer; an OLED including a pixel electrode electrically connected to the thin film transistor, an intermediate layer including an emissive layer, and an opposite electrode; a blister prevention layer on a same level as the activation layer; a gate insulation layer covering the activation layer and the blister prevention layer and insulating the activation layer from the gate electrode; and an interconnection unit including first and second layers on a portion of the gate insulation layer overlying the blister prevention layer, wherein the blister prevention layer protects the interconnection unit on the gate insulation layer from blistering.Type: ApplicationFiled: August 23, 2012Publication date: June 27, 2013Inventors: Chun-Gi YOU, Joon-Hoo Choi
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Patent number: 8471276Abstract: An organic light emitting diode (OLED) display is disclosed. In one embodiment, the OLED display includes i) a plurality of pixels comprising a blue light emitting region, a green light emitting region, and a red light emitting region on a substrate and formed by stacking a lower electrode, an organic layer, and an upper electrode. In one embodiment, the blue and green light emitting regions are formed in a microcavity structure, and the red light emitting region is formed in a non-microcavity structure.Type: GrantFiled: June 29, 2011Date of Patent: June 25, 2013Assignee: Samsung Display Co., Ltd.Inventors: Seung-Mook Lee, Do-Young Kim, Sang-Woo Pyo, Tae-Min Kang, Hee-Seong Jeong
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Patent number: 8466485Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive semiconductor layer, an active layer under the first conductive semiconductor layer, a second conductive semiconductor layer under the active layer, a second electrode layer under the second conductive semiconductor layer, and a transmissive conductive layer at least one part between the second conductive semiconductor layer and the second electrode layer.Type: GrantFiled: November 2, 2012Date of Patent: June 18, 2013Assignee: LG Innotek Co., Ltd.Inventor: Hwan Hee Jeong
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Publication number: 20130146909Abstract: A semiconductor light emitting device includes a semiconductor layer including a light emitting layer, a p-side electrode provided on a second surface of the semiconductor layer, and an n-side electrode provided on the semiconductor layer to be separated from the p-side electrode. The p-side electrode includes a plurality of contact metal selectively provided on the semiconductor layer in contact with the second surface, a transparent film provided on the semiconductor layer in contact with the second surface between the plurality of contact metal, and a reflective metal provided on the contact metal and on the transparent film in contact with the contact metal, the reflective metal including silver. A surface area of a surface of the reflective metal on the light emitting layer side is greater than the sum total of a surface area of the plurality of contact metal contacting the semiconductor layer.Type: ApplicationFiled: July 12, 2012Publication date: June 13, 2013Applicant: Kabushiki Kaisha ToshibaInventors: Akihiro KOJIMA, Hideto FURUYAMA, Miyoko SHIMADA, Yosuke AKIMOTO
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Publication number: 20130146837Abstract: An LED includes a first semiconductor layer, a second semiconductor layer, an active layer, a first transparent conductive layer, and a second transparent conductive layer. The first transparent conductive layer is formed on the second semiconductor layer. The second transparent conductive layer is formed on the first transparent conductive layer. The thickness of the first transparent conductive layer is less than that of the second transparent conductive layer. The density of the first transparent conductive layer is larger than that of the second transparent conductive layer. The disclosure further includes a method for manufacturing the LED.Type: ApplicationFiled: August 1, 2012Publication date: June 13, 2013Applicant: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.Inventors: CHIA-HUI SHEN, TZU-CHIEN HUNG
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Patent number: 8455911Abstract: According to one embodiment, a semiconductor light-emitting device using an ITON layer for a transparent conductor and realizing low drive voltage, high luminance efficiency, and uniformed light emission intensity distribution is provided. The semiconductor light-emitting device includes: a substrate; an n-type semiconductor layer formed on the substrate; an active layer formed on the n-type semiconductor layer; a p-type semiconductor layer formed on the active layer and whose uppermost part is a p-type GaN layer; an ITON (Indium Tin Oxynitride) layer formed on the p-type GaN layer; an ITO (Indium Tin Oxide) layer formed on the ITON layer; a first metal electrode formed on a part on the ITO layer; and a second metal electrode formed in contact with the n-type semiconductor layer.Type: GrantFiled: September 1, 2010Date of Patent: June 4, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Toshihide Ito, Koichi Tachibana, Shinya Nunoue
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Patent number: 8450741Abstract: In the case where a material containing an alkaline-earth metal in a cathode, is used, there is a fear of the diffusion of an impurity ion (such as alkaline-earth metal ion) from the EL element to the TFT being generated and causing the variation of characteristics of the TFT. Therefore, as the insulating film provided between TFT and EL element, a film containing a material for not only blocking the diffusion of an impurity ion such as an alkaline-earth metal ion but also aggressively absorbing an impurity ion such as an alkaline-earth metal ion is used.Type: GrantFiled: September 6, 2011Date of Patent: May 28, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Murakami, Mitsuhiro Ichijo, Taketomi Asami
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Patent number: 8445924Abstract: A light emitting device is disclosed. The light emitting device includes a support member, a light emitting structure disposed over the support member and includes first and second light emitting structures, the first and second light emitting structures including a first semiconductor layer, a second semiconductor layer, and an active layer, a passivation layer disposed on one side surface of the first light emitting structure, a first electrode disposed between the support member and the first semiconductor layer in the first light emitting structure, a second electrode disposed on a side surface of the passivation layer and on the second semiconductor layer in the first light emitting structure, a third electrode disposed between the support member and the first semiconductor layer in the second light emitting structure, an insulation layer disposed with a through hole, and a fourth electrode disposed in the through hole.Type: GrantFiled: February 1, 2012Date of Patent: May 21, 2013Assignee: LG Innotek Co., Ltd.Inventors: Hwanhee Jeong, Junghyeok Bae, Hyunju Kim
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Patent number: 8445373Abstract: Certain example embodiments of this invention relate to a method of activating an indium tin oxide (ITO) thin film deposited, directly or indirectly, on a substrate. The ITO thin film is baked in a low oxygen environment at a temperature of at least 450 degrees C. for at least 10 minutes so as to provide for (1) a post-baked resistivity of the ITO thin film that is below a resistivity of a corresponding air-baked ITO thin film, (2) a post-baked visible spectrum absorption and transmission of the ITO thin film that respectively are below and above the absorption and transmission of the corresponding air-baked ITO thin film, and (3) a post-baked infrared reflectivity of the ITO thin film that is above the reflectivity of the corresponding air-baked ITO thin film. The substrate with the activated ITO thin film may be used in a photovoltaic device, for example.Type: GrantFiled: May 28, 2009Date of Patent: May 21, 2013Assignee: Guardian Industries Corp.Inventors: David M. Broadway, Yiwei Lu
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Publication number: 20130112977Abstract: The present invention provides a pixel structure including a substrate, a first metal pattern layer, an insulating layer, a second metal pattern layer, a passivation layer, and a conductive protection layer. The substrate has at least one pixel region. The first patterned metal layer is disposed on the substrate, and has a top surface. The insulating layer is disposed on the first patterned metal layer and the substrate, and is in contact with the top surface of the first patterned metal layer. The second patterned metal layer is disposed on the insulating layer in the pixel region, and includes a source and a drain. The passivation layer is disposed on the second patterned metal layer and the insulating layer. A top surface of the source is in contact with the passivation layer, and the conductive protection layer is disposed on the drain.Type: ApplicationFiled: June 28, 2012Publication date: May 9, 2013Inventors: Chin-Tzu Kao, Jin-Chuan Kuo, Ya-Ju Lu
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Publication number: 20130112983Abstract: A pixel structure and a method for manufacturing the same are disclosed. The pixel structure of the present invention is a pixel structure implemented by combining an in-plane switching (IPS) technique and a fringe field switching (FFS) technique. In each pixel structure, two transparent conductive layers are utilized to form a storage capacitor (Cst) such that the capacitance of the storage capacitor can be increased without decreasing an aperture ratio of a display panel, and thereby a feedthrough voltage can be reduced so as to prevent a screen from blinking.Type: ApplicationFiled: January 20, 2012Publication date: May 9, 2013Applicant: Hannstar Display CorporationInventors: Ling-chih Kao, Chu-hung Tsai, Kun-tsai Huang
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Patent number: 8436396Abstract: A semiconductor light-emitting device (1) of the present invention includes a substrate (101); a laminate semiconductor layer (20) formed by sequentially laminating an n-type semiconductor layer (104), a light-emitting layer (105), and a p-type semiconductor layer (106) on the substrate (101); and a translucent electrode layer (109) formed on a top surface (106a) of the p-type semiconductor layer (106), wherein the translucent electrode layer (109) contains a dopant element, a content of the dopant element within the translucent electrode layer (109) decreases gradually toward the interface (109a) between the p-type semiconductor layer (106) and the translucent electrode layer (109), and in the translucent electrode layer (109) is formed a diffusion region in which an element constituting the p-type semiconductor layer (106) is diffused from the interface (109a) toward the inside of the translucent electrode layer (109).Type: GrantFiled: May 20, 2009Date of Patent: May 7, 2013Assignee: Toyoda Gosei Co., Ltd.Inventors: Hironao Shinohara, Naoki Fukunaga
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Publication number: 20130105809Abstract: A light emitting diode chip includes a substrate and an epitaxial layer formed on the substrate. The substrate is made of indium tin oxide (ITO) and has nano hydrogenation of SiC (SiC:H) particles doped therein. The substrate functions as a first electrode for the light emitting diode chip. The epitaxial layer consists of a first conductive type semiconductor material layer, a light-emitting layer and a second conductive type semiconductor material layer. A second electrode is formed on the second conductive type semiconductor material layer.Type: ApplicationFiled: December 23, 2011Publication date: May 2, 2013Applicant: FOXSEMICON INTEGRATED TECHNOLOGY, INC.Inventor: HSIU-PING CHANG
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Publication number: 20130109114Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming gate and data lines crossing each other on a substrate; forming a thin film transistor connected to the gate and data lines; forming a passivation layer on the substrate having the gate lines, data lines and the thin film transistor; forming a first conductive material layer on the passivation layer and connected to a drain electrode of the thin film transistor; oxidizing a surface of the first conductive material layer; forming a second conductive material layer on the oxidized first conductive material layer; forming a photoresist pattern on the second conductive material layer; etching the first and second conductive material layers using the photoresist pattern to form pixel and common electrodes which are alternately arranged in the pixel region and produces an in-plane electric field; and removing the photoresist pattern.Type: ApplicationFiled: August 1, 2012Publication date: May 2, 2013Inventors: Ju-Ran Lee, Jeong-Yun Lee, Hang-Sup Cho, Doo-Hee Jang
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Publication number: 20130100368Abstract: A liquid crystal display device includes a first insulating layer which sits on an end portion of a first transparent electrode, a gate electrode under the first insulating layer, a semiconductor layer on the first insulating layer, a first wiring which is formed so as to reach the first transparent electrode thereon from the semiconductor layer and is electrically connected to the first transparent electrode, a second wiring which is pulled out from the upper part of the semiconductor layer with an interval from the first wiring, a second insulating layer which covers the first wiring, the second wiring, the semiconductor layer, and the second insulating layer which covers the first transparent electrode, a second transparent electrode which is formed on the second insulating layer, and a liquid crystal layer which is arranged on the second transparent electrode.Type: ApplicationFiled: October 25, 2012Publication date: April 25, 2013Applicant: JAPAN DISPLAY EAST INC.Inventor: Japan Display East Inc.
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Patent number: 8426259Abstract: The present invention provides an array substrate, comprising: a base substrate; a pixel electrode pattern and a gate pattern formed on the base substrate, the gate pattern comprises a gate scanning line and a gate electrode of a transistor, both of the gate scanning line and the gate electrode comprise transparent conductive metal layer and the gate metal layer stacking on the substrate, each pixel electrode in the pixel electrode pattern comprises transparent conductive metal layer; a gate insulating layer on the pixel electrode pattern and the gate pattern, an active layer pattern on the gate insulating layer and corresponding to the gate electrode, a via hole in the gate insulating layer for exposing the pixel electrode; and a source/drain pattern on the gate insulating layer, the source/drain pattern comprises a data scanning line crossing with the gate scanning line, source and drain electrodes of the transistor, and the drain electrode is in contact with the pixel electrode through the via hole.Type: GrantFiled: June 1, 2011Date of Patent: April 23, 2013Assignee: Beijing BOE Optoelectronics Technology Co., Ltd.Inventors: Xiang Liu, Seongyeol Yoo, Jianshe Xue
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Patent number: 8420417Abstract: A method of making a light emitting device includes forming an active layer between first and semiconductor layers of different conductivity types, and forming a transparent conductive layer adjacent the second semiconductor layer. The transparent conductive layer includes a first transparent conductive region contacting a first region of the second semiconductor layer and a second transparent conductive region contacting a second region of the second semiconductor layer. An electrode is formed adjacent the first semiconductor layer in vertical alignment with the second region.Type: GrantFiled: December 21, 2010Date of Patent: April 16, 2013Assignee: LG Innotek Co., Ltd.Inventors: Hwan Hee Jeong, Ji Hyung Moon, So Jung Kim, June O Song
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Patent number: 8421116Abstract: The light emitting device of the invention comprises a first electrode, a second electrode being light transmitting, and a carrier sandwiched between the first electrode and the second electrode and containing light emitters, wherein the first electrode has a plurality of projections or a pn junction formed with a p-type semiconductor and an n-type semiconductor each on a surface being in contact with the carrier.Type: GrantFiled: December 1, 2009Date of Patent: April 16, 2013Assignee: Sharp Kabushiki KaishaInventors: Nobutoshi Arai, Masatomi Harada, Takayuki Ogura, Hiroshi Kotaki
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Patent number: 8421067Abstract: A semiconductor device having a structure which enables sufficient reduction in parasitic capacitance is provided. In addition, the operation speed of thin film transistors in a driver circuit is improved. In a bottom-gate thin film transistor in which an oxide insulating layer is in contact with a channel formation region in an oxide semiconductor layer, a source electrode layer and a drain electrode layer are formed in such a manner that they do not overlap with a gate electrode layer. Thus, the distance between the gate electrode layer and the source electrode layer and between the gate electrode layer and the drain electrode layer are increased; accordingly, parasitic capacitance can be reduced.Type: GrantFiled: July 29, 2010Date of Patent: April 16, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Junichiro Sakata
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Patent number: 8420436Abstract: A solar cell manufacturing method according to the present invention is a solar cell manufacturing method that forms a transparent conductive film of ZnO as an electric power extracting electrode on a light incident side, the method comprises at least in a following order: a process A forming the transparent conductive film on a substrate by applying a sputtering voltage to sputter a target made of a film formation material for the transparent conductive film; a process B forming a texture on a surface of the transparent conductive film; a process C cleaning the surface of the transparent conductive film on which the texture has been formed using an UV/ozone; and a process D forming an electric power generation layer on the transparent conductive film.Type: GrantFiled: October 27, 2009Date of Patent: April 16, 2013Assignee: ULVAC, Inc.Inventors: Hirohisa Takahashi, Satoru Ishibashi, Sadayuki Ukishima, Masahide Matsubara, Satoshi Okabe
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Publication number: 20130083279Abstract: A liquid crystal display device includes a pair of substrates of which one substrate is provided with a plurality of scanning lines and a plurality of common wirings, a first insulation film covering the scanning lines, the common wirings, and the one substrate, a plurality of signal lines provided on the first insulation film, a thin film transistor provided near an intersection part of the scanning lines and the signal lines, a lower electrode formed below the first insulation film and connected to the common wirings, a second insulation film formed on surfaces of the thin film transistor, the signal lines, and the first insulation film, and an upper electrode formed on the second insulation film and having a slit, a display region in which the liquid crystal layer is driven by an electric field, and a non-display region that is formed outside the display region.Type: ApplicationFiled: September 30, 2011Publication date: April 4, 2013Applicant: SONY CORPORATIONInventors: Takuo Kinoshita, Hiroyuki Ito
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Publication number: 20130082295Abstract: A light-emitting element includes a sapphire substrate as a substrate, a light-emitting layer arranged on the substrate in a state of being sandwiched in a thickness direction between an n-type semiconductor layer and a p-type semiconductor layer as two semiconductor layers having conductivity types different from one another, and a transparent electrode layer arranged so as to overlap with p-type semiconductor layer as one of the two semiconductor layers located farther away from the substrate, and a flat layer of a transparent material having a higher refractive index than transparent electrode layer and provided so as to cover at least a part of an upper surface of transparent electrode layer, and a irregularity layer arranged on an upper side of said flat layer.Type: ApplicationFiled: September 14, 2012Publication date: April 4, 2013Applicant: Sharp Kabushiki KaishaInventor: Shinya YOSHIDA
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Patent number: 8410471Abstract: A light emitting device includes a substrate, and an LED chip mounted on the substrate. The chip includes: a body comprising a transparent conductor which comprises a base and sticks out of the base to taper off from the base; a light source comprising light emitting parts separately formed on the base; a first terminal formed on the base; and second terminals formed on the light emitting parts, respectively. A conductive pattern of the substrate includes: a first conductor electrically connected with the first terminal; and second conductors electrically connected with the second terminals, respectively.Type: GrantFiled: December 21, 2009Date of Patent: April 2, 2013Assignee: Panasonic CorporationInventor: Akihiko Murai
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Patent number: 8409999Abstract: An etchant composition for etching a transparent electrode is provided, the etchant composition includes an inorganic acid, an ammonium (NH4+)-containing compound, a cyclic amine compound, and the remaining amount of water.Type: GrantFiled: November 16, 2010Date of Patent: April 2, 2013Assignee: Samsung Display Co., Ltd.Inventors: Byeong-Jin Lee, Hong-Sick Park, Sang-Tae Kim, Joon-Woo Lee, Young-Chul Park, Young-Jun Jin, Suck-Jun Lee, Seung-Jae Yang, O-Byoung Kwon, In-Ho Yu, Sang-Hoon Jang, Min-Ki Lim, Hye-Ra Shin, Yu-Jin Lee
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Patent number: 8409891Abstract: A display device in which a plurality of gate wires and a plurality of drain wires that intersect the gate wires are provided, and thin film transistors connected to the gate wires and the drain wires are formed for respective pixel regions. At least one of the gate wires, the drain wires, and lead wires drawn from the gate wires or the drain wires is formed of a light-transmitting patterned conductive film. The light-transmitting patterned conductive film is formed of at least a first light-transmitting patterned conductive film, and a second light-transmitting patterned conductive film laminated on the first light-transmitting patterned conductive film. The second light-transmitting patterned conductive film is formed of a conductive film for coating only the surface of the first light-transmitting patterned conductive film including its side wall surface.Type: GrantFiled: April 13, 2011Date of Patent: April 2, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takeshi Kuriyagawa, Jun Fujiyoshi
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Publication number: 20130075779Abstract: A light emitting diode includes a first-type semiconductor layer, an active layer, a second-type semiconductor layer and a transparent, electrically conductive layer formed in sequence. The transparent, electrically conductive layer includes a first transparent, electrically conductive layer on the second-type semiconductor layer and a second transparent, electrically conductive layer on the first transparent, electrically conductive layer. Both the first and second transparent, electrically conductive layers are made of indium tin oxide, while the first transparent, electrically conductive layer has a smaller thickness. During formation of the transparent, electrically conductive layer, a mass flow of introduced oxygen gas to the first transparent conductive layer is lower than that to the second transparent conductive layer.Type: ApplicationFiled: June 21, 2012Publication date: March 28, 2013Applicant: ADVANCED OPTOELECTRONIC TECHNOLOGY, INC.Inventors: CHIA-HUI SHEN, TZU-CHIEN HUNG
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Publication number: 20130075762Abstract: According to one embodiment, an optically transmissive metal electrode includes a plurality of first and second metal wires. The first metal wires are disposed along a first direction, and extend along a second direction intersecting the first direction. The second metal wires are disposed along a third direction parallel with a plane including the first and second directions and intersecting the first direction, contact the first metal wires, and extend along a fourth direction parallel with the plane and intersecting the third direction. A first pitch between centers of the first metal wires is not more than a shortest wavelength in a waveband including visible light. A second pitch between centers of the second metal wires exceeds a longest wavelength in the waveband. A thickness of the first and second metal wires along a direction vertical to the plane is not more than the shortest wavelength.Type: ApplicationFiled: February 27, 2012Publication date: March 28, 2013Inventors: Kenji NAKAMURA, Akira Fujimoto, Tsutomu Nakanishi, Ryota Kitagawa, Shinji Nunotani, Takanobu Kamakura
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Patent number: 8405109Abstract: A low resistance electrode and a compound semiconductor light emitting device including the same are provided. The low resistance electrode deposited on a p-type semiconductor layer of a compound semiconductor light emitting device including an n-type semiconductor layer, an active layer, and the p-type semiconductor layer, including: a reflective electrode which is disposed on the p-type semiconductor layer and reflects light being emitted from the active layer; and an agglomeration preventing electrode which is disposed on the reflective electrode layer in order to prevent an agglomeration of the reflective electrode layer during an annealing process.Type: GrantFiled: April 27, 2011Date of Patent: March 26, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Joon Seop Kwak, Tae Yeon Seong, Jae Hee Cho, June-o Song, Dong Seok Leem, Hyun Soo Kim
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Patent number: 8405103Abstract: There is provided a photonic crystal light emitting device including: a light emitting structure including first and second conductivity type semiconductor layers and an active layer interposed therebetween; a transparent electrode layer formed on the second conductivity type semiconductor layer, the transparent electrode layer having a plurality of holes arranged with a predetermined size and period so as to form a photonic band gap for light emitted from the active layer, whereby the transparent electrode layer includes a photonic crystal structure; and first and second electrode electrically connected to the first conductivity type semiconductor layer and the transparent electrode layer, respectively. The photonic crystal light emitting device has a transparent electrode layer formed of a photonic crystal structure defined by minute holes, thereby improved in light extraction efficiency.Type: GrantFiled: July 30, 2008Date of Patent: March 26, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Dong Yul Lee, Seong Ju Park, Min Ki Kwon, Ja Yeon Kim, Yong Chun Kim, Bang Won Oh, Seok Min Hwang, Je Won Kim
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Patent number: 8390122Abstract: Methods are generally provided for forming a conductive oxide layer on a substrate. In one particular embodiment, the method can include sputtering a transparent conductive oxide layer (e.g., including cadmium stannate) on a substrate from a target in a sputtering atmosphere comprising cadmium. The transparent conductive oxide layer can be sputtered at a sputtering temperature greater of about 100° C. to about 600° C. Methods are also generally provided for manufacturing a cadmium telluride based thin film photovoltaic device.Type: GrantFiled: September 19, 2011Date of Patent: March 5, 2013Assignee: Primestar Solar, Inc.Inventor: Scott Daniel Feldman-Peabody
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Patent number: 8389996Abstract: A method for forming a SnO-containing semiconductor film includes a first step of forming a SnO-containing film; a second step of forming an insulator film composed of an oxide or a nitride on the SnO-containing film to provide a laminated film including the SnO-containing film and the insulator film; and a third step of subjecting the laminated film to a heat treatment.Type: GrantFiled: March 1, 2010Date of Patent: March 5, 2013Assignee: Canon Kabushiki KaishaInventors: Hisato Yabuta, Nobuyuki Kaji, Ryo Hayashi
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Publication number: 20130049060Abstract: A light-emitting diode structure. In one embodiment, the light-emitting diode structure includes an insulation substrate, a light-emitting structure having a first electrical semiconductor layer, a light-emitting layer, and a second electrical semiconductor layer successively stacked on the insulating substrate and containing a first electrode pad region, a second electrode pad region, and a light-emitting region, a first and second electrical electrode pad respectively disposed on the first and second electrode pad region, a second electrical conducting finger disposed on the light-emitting structure and connected to the second electrical electrode pad and the second electrical semiconductor layer, and a first insulating layer for insulating the second electrical conducting finger from the first electrical semiconductor layer and the light-emitting layer. A bottom surface of the second electrical electrode pad is located below an upper surface of the second electrical semiconductor layer.Type: ApplicationFiled: February 16, 2012Publication date: February 28, 2013Applicant: CHI MEI LIGHTING TECHNOLOGY CORP.Inventors: Kuo-Hui Yu, Chang-Hsin Chu