Of Thin-film Circuits Or Parts Thereof (epo) Patents (Class 257/E21.535)
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Publication number: 20080315191Abstract: An n-type TFT and a p-type TFT are realized by selectively changing only a cover coat without changing a TFT material using an equation for applying the magnitude of a difference in the Fermi energy between an interface of semiconductor and an electrode and between an interface of semiconductor and insulator. At this time, in order to configure a predetermined circuit, the process is performed, as a source electrode and a drain electrode of the p-type TFT and a source electrode and a drain electrode of the n-type TFT being connected all, respectively, and an unnecessary interconnection is cut by irradiating light using a scanning laser exposure apparatus or the like.Type: ApplicationFiled: May 29, 2008Publication date: December 25, 2008Inventors: Tomihiro Hashizume, Yuji Suwa, Masaaki Fujimori, Tadashi Arai, Takeo Shiba
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Publication number: 20080297675Abstract: An array substrate includes first and second gate lines, a data line, a pixel electrode, a shield electrode, a first driving transistor, a second driving transistor and a voltage-varying transistor. The pixel electrode has first and second pixel parts spaced apart from each other. The shield electrode covers a peripheral area of the pixel electrode. Each of the first and second driving transistors is electrically connected to the first and second pixel parts, respectively. The voltage-varying transistor includes a voltage-varying drain electrode having a shield-overlapping part overlapping the shield electrode. The voltage-varying transistor is electrically connected to the second gate line and the second pixel part. The voltage-varying drain electrode of the voltage-varying transistor overlaps the shield electrode to define a voltage-decreasing capacitor. The voltage difference between the first and second pixel parts of the pixel electrode may be increased.Type: ApplicationFiled: April 17, 2008Publication date: December 4, 2008Inventor: Dong-Gyu Kim
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Publication number: 20080297678Abstract: A display substrate includes a gate line, a data line, a thin film transistor, a pixel electrode, and a light blocking layer. The data line is insulated from the gate line and crosses the gate line. The thin film transistor is connected to the gate line and the data line. The thin film transistor is formed in a pixel. The pixel electrode is formed in the pixel and connected to the thin film transistor. The light blocking layer is formed from a same layer as the data line, wherein the light blocking layer is adjacent to a side of the data line.Type: ApplicationFiled: April 4, 2008Publication date: December 4, 2008Inventors: Kyung-Jin LEE, Kyung-Wook Kim, Hyuk-Jin Kim
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Publication number: 20080299690Abstract: A large screen liquid crystal display device using a transverse electric field system which is capable of dramatically improving an aperture ratio, a transmittance ratio, brightness, and contrast with low cost and high production yield. For example, the width of the common electrodes that shield the electric fields of the video signal lines can be decreased dramatically and the aperture ratio can be improved dramatically. Especially, the bumps covering the video signal lines can be used along with the spacers, and with the use of halftone exposure method, the bumps covering the video signal lines and the spacers can be constructed at the same time, which dramatically shortens the time required for the production process.Type: ApplicationFiled: July 26, 2008Publication date: December 4, 2008Inventor: Naoto Hirota
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Publication number: 20080285165Abstract: Various embodiments of a system and method for producing a thin film filter are disclosed.Type: ApplicationFiled: May 14, 2007Publication date: November 20, 2008Inventors: Kuohua (Angus) Wu, Al Davis, David L. Erickson
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Publication number: 20080283841Abstract: In forming a TFT and a storage capacitance element, whereas sharing with each other the conductive film and the insulation film, which are components of the TFT and the storage capacitance element, contributes to improving production efficiency, it is difficult to obtain a storage capacitance element that is optimized independently of the TFT. A TFT substrate provided with a TFT and a storage-capacitance element according to the present invention is characterized in that the storage-capacitance element is obtained that includes an electrically conductive film and an insulation film each being different from those used in the TFT. Furthermore, in order to form such a structure, a method of manufacturing the TFT substrate is provided that achieves both flexibility in design and efficiency in production without need for addition of any photolithography processes.Type: ApplicationFiled: October 5, 2007Publication date: November 20, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventor: Kazushi YAMAYOSHI
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Publication number: 20080284967Abstract: The present invention shows that an in-plane switching mode LCD and a method for fabricating the same that substantially obviates one or more problems due to limitations and disadvantages of the related art.Type: ApplicationFiled: May 15, 2008Publication date: November 20, 2008Inventors: Jae Young OH, Dong Su Shin, Jae Kyun Lee, Joon Young Yang, Kum Mi Oh
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Publication number: 20080284932Abstract: A thin film transistor including an insulating plate, a thin film transistor formed on the insulating plate, a first insulating layer formed on the insulating plate having the thin film transistor, a reflecting electrode formed on at least a portion of the first insulating layer, and a transparent electrode formed on at least a portion of the first insulating layer and on at least a portion of the reflecting electrode is disclosed. Up to about 85% of a total area of the transparent electrode overlaps with the reflecting electrode. About 10% to about 85% of the total area of the transparent electrode may overlap with the reflecting electrode. About 10% to about 20% of the total area of the transparent electrode may overlap with the reflecting electrode. About 40% to about 50% of the total area of the transparent electrode may overlap with the reflecting electrode. About 75% to about 85% of the total area of the transparent electrode may overlap with the reflecting electrode.Type: ApplicationFiled: August 2, 2007Publication date: November 20, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seong-Kweon Heo, Chun-Gi You
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Patent number: 7452790Abstract: Disclosed is a method of fabricating a thin film transistor in which, in order to control the concentration of metal catalysts remaining on a polycrystalline silicon layer when an amorphous silicon layer formed on an insulating substrate is crystallized into the polycrystalline silicon layer by a super grain silicon (SGS) crystallization method, the substrate is annealed so that a very small amount of metal catalyst is adsorbed or diffused into a capping layer, and then a crystallization process is carried out, thereby minimizing the concentration of the metal catalysts remaining on the polycrystalline silicon layer, as well as forming a thick metal catalyst layer.Type: GrantFiled: December 22, 2004Date of Patent: November 18, 2008Assignee: Samsung SDI Co., Ltd.Inventors: Hye-Hyang Park, Ki-Yong Lee
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Publication number: 20080266480Abstract: A liquid crystal display (LCD) device. In one embodiment, the LCD device includes a first substrate and a second substrate positioned apart from the first substrate, a liquid crystal layer positioned between the first substrate and the second substrate, and a plurality of pixels formed on the first substrate. Each pixel has a first pixel electrode formed on the first substrate, a second pixel electrode formed on an dielectric layer, wherein the dielectric layer is formed on the first pixel electrode to have a patterned structure with an opening exposing a portion of the first pixel electrode such that the second pixel electrode is connected to the first pixel electrode through the one opening; and an auxiliary common electrode formed on the dielectric layer and distantly surrounding the second pixel electrode.Type: ApplicationFiled: April 25, 2007Publication date: October 30, 2008Applicant: AU Optronics CorporationInventor: Seok-Lyul LEE
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Publication number: 20080265253Abstract: A thin film transistor (TFT) display panel as well as a manufacturing method and a detection method thereof are provided. The TFT display panel comprises at least two display regions and a detection region, wherein a gate detection line is correspondingly connected at least with all the gate lines from one of the display regions in the detection region. The embodiments of the present invention improve the safety of the circuits in the detection region, and simplify the mask process of the TFT display panel and the detection process for the display region, which in turn increases the production efficiency of the TFT and reduces the production cost.Type: ApplicationFiled: March 11, 2008Publication date: October 30, 2008Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zhenhuan TIAN, Ki Young KWON
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Publication number: 20080254578Abstract: A method for fabricating thin film transistors is disclosed. An amorphous silicon film is formed on a substrated and selectively irradiated with a laser beam for lateral growth to form a plurality of polysilicon regions. The whole surface of the substrate is then oxidized and irradiated with exicer laser annealing.Type: ApplicationFiled: August 2, 2007Publication date: October 16, 2008Inventors: Chih-Jen Shih, Wen-Chun Yeh, Min-Che Ho, Wen-Chi Yang
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Publication number: 20080254559Abstract: Provided is a method of fabricating a liquid crystal display device. The method includes fabricating a liquid crystal panel divided into transmission and non-transmission regions, and including an upper substrate and a lower substrate, which are spaced apart from and opposite to each other, and a liquid crystal layer filled between the substrates, wherein the lower substrate has a plurality of thin film transistors; depositing a transparent conductive layer having a certain thickness on the upper substrate exposed to the exterior of the liquid crystal panel; and performing an etching process for removing the entire transparent conductive layer and a portion of the upper substrate to form irregular prominences and depressions on a surface of the upper substrate exposed to the exterior. Therefore, it is possible to improve readability and contrast ratio by diffusely reflecting external light and scattering internal light.Type: ApplicationFiled: April 8, 2008Publication date: October 16, 2008Applicant: BOE HYDIS TECHNOLOGY CO., LTD.Inventors: Suk Choi, Soon Ju Jang, Byung Hoon Kim
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Publication number: 20080252200Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.Type: ApplicationFiled: August 11, 2006Publication date: October 16, 2008Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong
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Publication number: 20080239189Abstract: One embodiment of the present invention is a thin film transistor array including an insulating substrate, a plurality of thin film transistors and a sealing layer. The sealing layer is stripe-shaped and covers a plurality of the thin film transistors. The sealing layer is formed over the insulating substrate.Type: ApplicationFiled: March 25, 2008Publication date: October 2, 2008Applicant: Toppan Printing Co., Ltd.Inventors: Kaoru Hatta, Toru Okubo, Ryohei Matsubara
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Publication number: 20080239188Abstract: A display substrate includes a base substrate, a thin-film transistor (TFT), a pixel electrode, a pad part, and a cell-gap compensating part. The base substrate has a display region, a seal region surrounding the display region, and a peripheral region surrounding the seal region. The TFT is in the display region. The pixel electrode is connected to a drain electrode of the TFT and contacts the base substrate. The pad part is interposed between a first side of the base substrate and the seal region and is connected to the TFT through a first transmission line. The cell-gap compensating part is in the seal region and includes a compensating pattern adjacent to a second side of the base substrate and an insulating pattern on the compensating pattern.Type: ApplicationFiled: March 10, 2008Publication date: October 2, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Min-Sik JUNG, Bong-Kyu SHIN, Joo-Han KIM
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Publication number: 20080241980Abstract: A thin film transistor array substrate including an insulating substrate, a first metallic pattern formed on the insulating substrate, and an insulating film provided on the first metallic pattern. A semiconductor pattern is provided on the insulating film, and a second metallic pattern is provided on the semiconductor pattern. The second metallic pattern is surrounded by the semiconductor pattern.Type: ApplicationFiled: May 27, 2008Publication date: October 2, 2008Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazuhiro Kobayashi, Nobuhiro Nakamura, Ken Nakashima
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Publication number: 20080231168Abstract: A display substrate, an organic light emitting diode display device having the same, and a manufacturing method thereof are disclosed. The display substrate includes a first pixel separating portion and a second pixel separating portion extending from the pixel separating portion and disposed around a pixel portion. Therefore, the number of processes for forming the organic light emitting diode display device can be reduced, and corrosion of a first electrode of the organic light emitting diode display device can be prevented.Type: ApplicationFiled: December 28, 2007Publication date: September 25, 2008Inventor: Hee Dong Choi
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Publication number: 20080225195Abstract: The present invention allows decreasing the uneven image quality in a liquid crystal display device. The display device in accordance with the present invention includes plural scan signal lines, plural video signal lines, plural TFTs placed in a matrix structure, and plural pixel electrodes, when the width of the scan signal line in a region to place one TFT is different from the width of the scan signal line in a region to place another TFT which is different from the one TFT, the channel width and the channel length of the one TFT is almost equal to the channel width and the channel length of the another TFT, and the surface area of the region overlapping the source electrode with the scan signal line of the one TFT when viewing in plan view is almost equal to the surface area of the region overlapping the source electrode with the scan signal line of the another TFT when viewing in plan view.Type: ApplicationFiled: January 17, 2008Publication date: September 18, 2008Inventors: Ken OOHARA, Yoshiaki Nakayoshi, Tsunenori Yamamoto, Susumu Edo
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Publication number: 20080218061Abstract: A pixel structure of an organic electroluminescent display panel has a plurality of sub-pixel regions. Each of the sub-pixel regions has a plurality of organic luminescent devices electrically connected in series, and the organic luminescent devices disposed in a same sub-pixel region are disposed between a source electrode of a thin film transistor and a voltage source Vdd.Type: ApplicationFiled: May 30, 2007Publication date: September 11, 2008Inventors: Ching-Ian Chao, Hsia-Tsai Hsiao, Hsien-Hsin Yeh
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Publication number: 20080220607Abstract: A method of routing signals within a semiconductor memory device includes providing a semiconductor wafer having a top surface with a center portion, an edge portion and wafer bond pads at the center portion. A redistribution layer is provided on the top surface of the semiconductor wafer. The method includes redistributing signals from the wafer bond pads to redistribution edge pads utilizing the redistribution layer, and routing signals from the semiconductor wafer up to the redistribution layer and routing these signals back down to the semiconductor wafer.Type: ApplicationFiled: May 20, 2008Publication date: September 11, 2008Inventor: Klaus Hummler
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Publication number: 20080220551Abstract: A display panel including a pixel array region. The pixel array region includes a plurality of pixel cells disposed in a matrix configuration. Each pixel cell has an active device. A relative position of a first active device in a first pixel cell among the pixel cells is different from that of a second active device in a second pixel cell among the pixel cells.Type: ApplicationFiled: May 23, 2008Publication date: September 11, 2008Applicant: AU OPTRONICS CORP.Inventors: Wei-Pang Huang, Shih-Lung Chen
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Publication number: 20080204620Abstract: The construction of electrodes for liquid-crystal displays using larger grain lower absorption (LGLA) poly-Si showing an absorptivity below 20% in the visible light region is described. Integration in the manufacturing of substrates for active-matrix LCDs is shown. Source, drain and channel region (108b, 108c, 108d) of the TFTs as well as the pixel-electrode (108e) are formed conjointly in a single poly-Si layer.Type: ApplicationFiled: May 21, 2005Publication date: August 28, 2008Applicant: THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zhiguo Meng, Man Wong, Hoi Sing Kwok
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Publication number: 20080206896Abstract: Provided is a method for repairing a LCD panel. An opaque substance is disposed within a region on the thin film transistor panel of LCD panel corresponding to at least one pixel with the bright spot defect before forming a cell, or within a region on the LCD panel corresponding to at least one pixel with the bright spot defect after forming a cell.Type: ApplicationFiled: December 12, 2007Publication date: August 28, 2008Applicant: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTDInventor: Yanjiang FAN
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Publication number: 20080197345Abstract: Disclosed herein is a copolymer, which may include side chains which may decrease the surface energy of an insulating layer, thereby improving the alignment of a semiconductor material, and side chains including photoreactive functional groups having an increased degree of cross-linking, thereby improving the characteristics of an organic thin film transistor manufactured using the same, an organic insulating layer composition including the copolymer, an organic insulating layer, an organic thin film transistor, an electronic device including the same and methods of fabricating the same. According to the copolymer of example embodiments, the surface energy of an insulating layer may be decreased, so that the alignment of a semiconductor material may be improved, thereby improving the threshold voltage and charge mobility and decreasing the generation of hysteresis at the time of driving the transistor.Type: ApplicationFiled: October 22, 2007Publication date: August 21, 2008Inventors: Joo Young Kim, Eun Kyung Lee, Sang Yoon Lee
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Publication number: 20080198287Abstract: A display panel includes a first substrate, a thin-film transistor (TFT), an organic layer, a second substrate, a seal line, and a conductive pattern. The first substrate includes a pixel part and a driving part connected to the pixel part. The TFTs are formed in the pixel part and the driving part. The organic layer is formed on the first substrate having the TFTs formed thereon. The second substrate is opposite to the first substrate. The seal line is disposed between an edge portion of the first substrate having the organic layer formed thereon and an edge portion of the second substrate. The seal line combines the first substrate with the second substrate. The conductive pattern is disposed between the seal line and the organic layer.Type: ApplicationFiled: February 19, 2008Publication date: August 21, 2008Inventors: Hyun-Young Kim, Kwan-Wook Jung, Hyung-Don Na, Seung-Gyu Tae, Jung-Yun Kim
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Publication number: 20080192163Abstract: A thin film transistor substrate includes; a substrate, a plurality of gate lines disposed on the substrate, a plurality of data lines disposed substantially perpendicular to the gate lines, wherein the plurality of data liens include a plurality of outermost data lines, a plurality of thin film transistors (“TFTs”) connected to the gate and data lines, a plurality of pixel electrodes connected to the plurality of TFTs, and a plurality of dummy patterns connected to the outermost data lines.Type: ApplicationFiled: October 31, 2007Publication date: August 14, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hong Woo LEE, Jong Hwan LEE, Sang Youn HAN, Sung Man KIM, Yeon Kyu MOON
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Publication number: 20080191613Abstract: A display device includes a first conductive layer including a driving source electrode and a driving drain electrode, a second conductive layer insulated from the first conductive layer, and including a driving gate electrode, a switching gate electrode, and a gate line, and a third conductive layer insulated from the first and second conductive layers, and including a switching source electrode, a switching drain electrode, a data line, and a common power line.Type: ApplicationFiled: August 23, 2007Publication date: August 14, 2008Inventors: Joon-chul Goh, Young-soo Yoon
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Patent number: 7410905Abstract: A method for fabricating a thin film pattern on a substrate, includes the steps of: forming a concave part on the substrate that conforms to the thin film pattern; and applying a function liquid into the concave part.Type: GrantFiled: May 27, 2004Date of Patent: August 12, 2008Assignee: Seiko Epson CorporationInventors: Toshihiro Ushiyama, Toshimitsu Hirai, Toshiaki Mikoshiba, Hiroshi Kiguchi, Hironori Hasei
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Publication number: 20080186434Abstract: A display substrate includes a base substrate, an organic ridge pattern, a pixel electrode and a shielding electrode. A plurality of pixel regions arranged in a matrix shape are formed on the base substrate. The organic ridge pattern is protruded between adjacent pixel regions. The pixel electrode is in each of the pixel regions. The shielding electrode is disposed on the organic ridge pattern, and is electrically connected to the pixel electrode.Type: ApplicationFiled: January 31, 2008Publication date: August 7, 2008Inventors: Young-Nam Yun, Soo-Guy Rho, Ji-Hye Moon, Myoung-Hi Lee
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Publication number: 20080188023Abstract: A method of manufacturing a display substrate includes forming a plurality of thin film transistors (TFTs) on a first substrate in a matrix, forming a plurality of pixel electrodes connected to the TFTs, forming a connecting pad to receive a common voltage, forming an organic pattern on the connecting pad, depositing an inorganic alignment layer covering the organic pattern on the first substrate, and removing the organic pattern and the inorganic alignment layer remaining on the organic pattern.Type: ApplicationFiled: December 3, 2007Publication date: August 7, 2008Inventors: Yong-Hwan Shin, Baek-Kyun Jeon, Soon-Joon Rho
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Publication number: 20080188022Abstract: In a liquid crystal display device, a first substrate includes electrical wirings and a semiconductor integrated circuit which has TFTs and is connected electrically to the electrical wirings, and a second substrate includes a transparent conductive film on a surface thereof. A surface of the first substrate that the electrical wirings are formed is opposite to the transparent conductive film on the second substrate. the semiconductor integrated circuit has substantially the same length as one side of a display screen (i.e., a matrix circuit) of the display device and is obtained by peeling it from another substrate and then forming it on the first substrate. Also, in a liquid crystal display device, a first substrate includes a matrix circuit and a peripheral driver circuit, and a second substrate is opposite to the first substrate, includes a matrix circuit and a peripheral driver circuit and has at least a size corresponding to the matrix circuit and the peripheral driver circuit.Type: ApplicationFiled: March 28, 2008Publication date: August 7, 2008Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Shunpei Yamazaki, Setsuo Nakajima, Yasuyuki Arai
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Publication number: 20080182352Abstract: The present invention is an array substrate for use in a liquid crystal display device, which includes a gate electrode, a gate line and a gate pad on a substrate, wherein the gate electrode, the gate line and the gate pad have a double-layered structure consisting of a first metal layer and a first barrier metal layer in series from the substrate, and wherein the first metal is one of aluminum and aluminum alloy; a gate insulation layer on the substrate covering the gate electrode, gate line and gate pad; an active layer and an ohmic contact layer sequentially formed on the gate insulation layer and over the gate electrode; a data line on the gate insulation layer perpendicularly crossing the gate line, source and drain electrodes contacting the ohmic contact layer, and a data pad on the gate insulation layer, wherein the data line, the source and drain electrode and the data pad have a double-layered structure consisting of a second barrier metal layer and a second metal layer of copper; a passivation layerType: ApplicationFiled: March 26, 2008Publication date: July 31, 2008Inventors: Won-Ho Cho, Gyoo-Chul Jo, Gue-Tai Lee, Jin-Gyu Kang, Beung-Hwa Jeong, Jin-Young Kim
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Publication number: 20080179675Abstract: A semiconductor device having a novel structure by which the operating characteristics and reliability are improved and a manufacturing method thereof. An island-shaped semiconductor layer provided over a substrate, including a channel formation region provided between a pair of impurity regions; a first insulating layer provided so as to be in contact with the side surface of the semiconductor layer; a gate electrode provided over the channel formation region so as to get across the semiconductor layer; and a second insulating layer provided between the channel formation region and the gate electrode are included. The semiconductor layer is locally thinned, the channel formation region is provided in the thinned region, and the second insulating layer covers the first insulating layer provided on the side surface of the semiconductor layer at least in the region which overlaps with the gate electrode.Type: ApplicationFiled: January 16, 2008Publication date: July 31, 2008Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Shunpei YAMAZAKI, Atsuo ISOBE, Hiromichi GODO
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Publication number: 20080166829Abstract: According to an embodiment, a fabrication method includes forming a gate line disposed along a first direction and a common line parallel to the gate line on a substrate, the gate and common lines spaced apart from each other, forming a gate insulating layer on the gate and common lines, forming a semiconductor layer on the gate insulating layer, forming a source electrode and a pixel electrode of transparent conductive material, the pixel electrode including a drain electrode portion, the drain electrode portion overlapping the semiconductor layer, forming a passivation layer including a first contact hole and an open portion, the first contact hole exposing the source electrode and the open portion exposing the pixel electrode, respectively, and forming a data line disposed along a second direction on the passivation layer, the data line connected to the source electrode through the first contact hole and crossing the gate line.Type: ApplicationFiled: January 8, 2008Publication date: July 10, 2008Inventors: Goe-Sung Chae, Jae-Kyun Lee, Yong-Sup Hwang
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Publication number: 20080166827Abstract: The present invention provides a TFT array panel and a manufacturing method of the same, which has signal lines including a lower layer of an Al containing metal and an upper layer of a molybdenum alloy (Mo-alloy) comprising molybdenum (Mo) and at least one of niobium (Nb), vanadium (V), and titanium (Ti). Accordingly, undercut, overhang, and mouse bites which may arise in an etching process, are prevented, and TFT array panels that have signal lines having low resistivity and good contact characteristics are provided.Type: ApplicationFiled: November 21, 2007Publication date: July 10, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
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Publication number: 20080164471Abstract: A thin film transistor substrate that has reduced production cost and defect rate is presented. The thin film transistor substrate includes a gate wiring line formed on an insulating substrate and including a gate electrode, a data wiring line formed on the gate wiring line and including a source electrode and a drain electrode, a passivation layer pattern formed on parts of the data wiring line other than the drain electrode and a pixel region, and a pixel electrode electrically connected to the drain electrode. The pixel electrode includes zinc oxide.Type: ApplicationFiled: November 13, 2007Publication date: July 10, 2008Inventors: Jong-hyun Choung, Byeong-Jin Lee, Hong-sick Park, Sun-young Hong, Bong-kyun Kim, Won-suk Shin
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Publication number: 20080157275Abstract: A display device includes a substrate, a capacitor lower electrode having a polycrystalline silicon film formed over the substrate and a contact metal film provided over the polycrystalline silicon film, a gate insulating film formed over the capacitor lower electrode and a gate metal electrode formed to a position opposing the capacitor lower electrode over the gate insulating film and formed to be disposed inner side of the capacitor lower electrode in top view.Type: ApplicationFiled: September 10, 2007Publication date: July 3, 2008Applicant: Mitsubishi Electric CorporationInventor: Takuji Imamura
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Publication number: 20080158459Abstract: In a liquid crystal display panel, an array substrate includes a pixel electrode including a conductive organic material provided with an alignment pattern formed thereon. The pixel electrode serves as an electrode that receives a pixel voltage and as an alignment layer that aligns liquid crystal molecules. Thus, the array substrate does not need to have a separate alignment layer in order to align the liquid crystal molecules, thereby reducing manufacturing cost and process complexity and enhancing productivity.Type: ApplicationFiled: December 17, 2007Publication date: July 3, 2008Inventors: Jun-Hyup Lee, Yeo-Geon Yoon
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Publication number: 20080151136Abstract: A method for fabricating a display includes providing a first substrate divided into a pixel part and first and second pad parts, forming a gate electrode and a gate line in the pixel part of the first substrate and forming a gate pad line in the first pad part of the first substrate, forming a first insulation film and a semiconductor film over the gate electrode, the gate line and the gate pad line, forming an active pattern over the gate electrode from the semiconductor film with the first insulation film interposed therebetween and forming a contact hole exposing a portion of the gate pad line using a single mask, forming source and drain electrodes in the pixel part, forming a pixel electrode in the pixel part, forming a gate pad electrode electrically connected with the gate pad line via the contact hole, forming a second insulation film over the pixel electrode and the gate pad electrode, exposing a portion of the pixel electrode and at least one portion of the gate pad electrode, and attaching the firType: ApplicationFiled: June 25, 2007Publication date: June 26, 2008Applicant: LG.PHILIPS LCD CO.,LTDInventors: Ji-Hyun Jung, Dong-Young Kim
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Publication number: 20080151150Abstract: A liquid crystal display panel for improving a response speed of a liquid crystal and a left DC using a carbon nanotube, and a fabricating method thereof are discussed. In the liquid crystal display panel according to an embodiment, a color filter substrate has first thin film patterns. A thin film transistor substrate is formed in opposition to the color filter substrate and has second thin film patterns which form a horizontal electric field. And a liquid crystal composition is injected between a cell gap formed by the two substrates and is rotated in a horizontal direction in accordance with a horizontal electric field, wherein the liquid crystal composition includes liquid crystals and carbon nanotubes which are dispersed between the liquid crystals in a predetermined quantity.Type: ApplicationFiled: June 28, 2007Publication date: June 26, 2008Inventor: Seung Hee LEE
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Publication number: 20080143908Abstract: The thin film transistor substrate includes a reflection area and a transmission area formed in a pixel region, a thin film transistor formed in the reflection area and connected to a gate line and a data line, an imprint layer formed in the reflection area and having an optical pattern surface, a reflective electrode formed on the imprint layer and having the same cross section as the optical pattern, a contact portion penetrating the imprint layer and the reflective electrode to expose a portion of a drain electrode of the thin film transistor, and a pixel electrode connected to the reflective electrode and connected to the drain electrode via the contact portion.Type: ApplicationFiled: November 16, 2007Publication date: June 19, 2008Inventors: Ju Han Bae, Dae-Jin Park
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Publication number: 20080143949Abstract: Disclosed herein is a display device including: a first substrate with a pixel switch and drivers mounted thereon; a second substrate disposed in facing relation to the first substrate; a material layer held between the first substrate and the second substrate and having peripheral edges sealed by a seal member, the material layer having an electrooptical effect; and a semiconductor chip mounted as a COG component on the first substrate, the semiconductor chip having a control system configured to control the drivers; wherein the semiconductor chip having a thickness equal to the total thickness of the seal member and the second substrate or larger than the thickness of the seal member and smaller than the total thickness.Type: ApplicationFiled: March 12, 2007Publication date: June 19, 2008Inventor: Masumitsu Ino
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Publication number: 20080143909Abstract: An LCD device includes plurality of gate lines and data lines crossing each other to define pixel regions on a substrate. A thin film transistor (TFT) resides at a crossing portion of the gate lines and the data lines and a pixel electrode is electrically connected with the TFT. The TFT includes a gate electrode, a gate insulation layer on the gate electrode and a semiconductor layer on the gate insulation layer. A portion of the data line and the semiconductor layer form a composite layer between adjacent pixel electrodes in which a line width of data line is the same as a line width of semiconductor layer. A method of fabricating the LCD device includes etching a passivation layer using a mask pattern and etching the semiconductor layer using the mask pattern and a portion of the data line as an etch mask to form the composite layer.Type: ApplicationFiled: June 22, 2007Publication date: June 19, 2008Inventors: Jung Il Lee, Seung Kwang Roh
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Publication number: 20080138921Abstract: A liquid crystal apparatus includes a TFT array substrate which includes gate wirings having a gate electrode, source wirings having a source electrode, a thin film transistor having the gate electrode, a semiconductor layer, the source electrode, and a drain electrode, an interlayer insulating film provided above the thin film transistor and the gate and source wirings, a transparent pixel electrode having a first transparent conductive film connected to the drain electrode through a contact hole, and put into contact with a surface of a insulating substrate through a pixel opening provided in a gate insulating film and the interlayer insulating film, a reflective pixel electrode made of an Al-alloy connected to the drain electrode, and a second transparent conductive film formed on the reflective electrode. The second transparent conductive film has a same pattern shape as the reflective pixel electrode and a thickness thereof is at least 5 nm.Type: ApplicationFiled: February 11, 2008Publication date: June 12, 2008Applicant: MITSUBISHI DENKI KABUSHIKI KAISHAInventors: Tadaki Nakahori, Nobuaki Ishiga, Kensuke Nagayama, Takuji Yoshida
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Publication number: 20080137015Abstract: The present invention provides: a multilayer substrate in which a spacer is selectively disposed in a non-display region without reduction in display quality or productivity of a liquid crystal display device; a production method thereof; and a liquid crystal display panel and a liquid crystal display device each using the multilayer substrate or the production method thereof. The multilayer substrate of the present invention is a multilayer substrate comprising a resin interlayer film and an electrode on a substrate in this order, wherein the multilayer substrate has a depression structure including the resin interlayer film in a surface layer, or a depression structure having a rough bottom surface on the resin interlayer film.Type: ApplicationFiled: August 17, 2005Publication date: June 12, 2008Inventor: Hirotaka Niiya
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Patent number: 7384827Abstract: Exemplary embodiments of the invention provide techniques that enable avoidance of the concentration of an electric field at the edge of a semiconductor film in a semiconductor device such as a thin film transistor, thereby enhancing the reliability. Exemplary embodiments provide a method of manufacturing a semiconductor device using a structure in which a semiconductor film, a dielectric film, and an electrode are deposited.Type: GrantFiled: March 24, 2005Date of Patent: June 10, 2008Assignee: Seiko Epson CorporationInventor: Daisuke Abe
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Publication number: 20080129908Abstract: A liquid crystal display panel 10A of the invention has gate electrodes G of TFTs, scan lines 16, and auxiliary capacitor electrodes 18a, which are coated with a first insulating film 27 composed of a thick insulating layer 25 and thinned insulating layer 26. A part above the auxiliary capacitor electrodes 18a is coated only with the thinned insulating layer 26, and drain electrodes D are extended on the first insulating film 27, which is not thinned, so as to coat the thinned insulating layer 26. On a second insulating film 28 provided between the pixel electrodes 20 and the drain electrodes D, contact holes 30 are formed at portions above the drain electrodes D on the first insulating film 27, which is not thinned, above the auxiliary capacitor electrodes 18a, and via the contact holes 30, the pixels 20 and the drain electrodes D are electrically coupled to each other.Type: ApplicationFiled: December 3, 2007Publication date: June 5, 2008Inventors: Shinichiro Nomura, Takayuki Kato, Satoshi Morita, Hideki Kaneko, Masahiro Horiguchi
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Publication number: 20080131986Abstract: An organic thin film transistor array panel is provided, which includes: a substrate; a data line formed on the substrate and including a source electrode; a drain electrode formed on the substrate and separated from the data line; an organic semiconductor disposed on the source electrode and the drain electrode; a gate insulator formed on the organic semiconductor; a gate line including a gate electrode disposed on the gate insulator; a passivation layer formed on the gate line and having a first contact hole on the drain electrode; a pixel electrode connected to the drain electrode through the first contact hole; and an opaque light blocking member disposed under the organic semiconductor.Type: ApplicationFiled: January 16, 2008Publication date: June 5, 2008Inventors: YONG UK LEE, Bo-Sung Kim, Min-Seong Ryu, Mun-Pyo Hong
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Publication number: 20080129911Abstract: An embodiment of the present invention discloses a Liquid Crystal on Silicon (LCOS) display unit, in which a Metal-Insulator-Metal (MIM) capacitor consisting of a micromirror layer, a insulation layer and a light shielding layer is formed by grounding the light shielding layer on a pixel switch circuit layer. Therefore the pixel switch circuit and the capacitor are in vertical distribution, that is, the switch circuit and the capacitor both have an allowable design area of the size of one pixel. Another embodiment of the present invention provides a method for forming a Liquid Crystal on Silicon (LCOS) display unit.Type: ApplicationFiled: September 6, 2007Publication date: June 5, 2008Applicant: SEMICONDUCTOR MANUFACTURING INTERNATIONAL (Shanghai) CORPORATIONInventors: Herb He HUANG, Xianyong Pu, Jianhong Mao, Yiqun Chen, Jing Fu, Zhongshan Hong, Yanghui Xiang