With Detail Of Terminals To External Circuit Patents (Class 349/152)
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Publication number: 20100128201Abstract: A liquid crystal display includes a liquid crystal panel including short sides and long sides, a plurality of gate lines disposed on the liquid crystal panel and extending substantially in parallel with the short sides of the liquid crystal panel, a plurality of data lines insulated from the gate lines, intersecting the gate lines and extending substantially in parallel with the long sides of the liquid crystal panel, a printed circuit board disposed near one of the short sides of the liquid crystal panel and providing an image signal to the liquid crystal panel, a light guide plate overlapping the liquid crystal panel, a light source module providing light to the light guide plate and a circuit board on which the light source module is mounted.Type: ApplicationFiled: May 20, 2009Publication date: May 27, 2010Applicant: Samsung Electronics CO., Ltd.Inventor: Sang-Duk Lee
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Patent number: 7723728Abstract: A fan-out wire structure is used to connect a driver and a display region of a display panel and has a plurality of first single-layer wires and at least one second single-layer wire. The first ends of the first single-layer wires are connected to the driver, and the second ends of the first single-layer wires are connected to the display area. The first end of the second single-layer wire is connected to the driver, and the second end of the second single-layer wire is connected to the display area. A metal layer of the first single-layer wires is different from a metal layer of the second single-layer wire.Type: GrantFiled: May 22, 2006Date of Patent: May 25, 2010Assignee: Au Optronics CorporationInventors: Kun-Hong Chen, Wen-Rei Guo
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Patent number: 7719627Abstract: A display includes: a display panel; a flexible printed circuit board that is attached to the display panel at a first height; and a frame that has the display panel disposed therein. The frame includes a guide portion that pulls the flexible printed circuit board to the outside of the frame, with the height of the flexible printed circuit board being varied from the first height to a second height by bending the flexible printed circuit board.Type: GrantFiled: November 23, 2005Date of Patent: May 18, 2010Assignee: Sanyo Electric Co., Ltd.Inventor: Tatsumi Okuda
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Publication number: 20100118252Abstract: An active device array substrate includes a substrate, a pixel array, a peripheral circuit, and a number of marks. The substrate has an active area and a peripheral circuit area that is connected to the active area. The pixel array is disposed on the active area of the substrate. The peripheral circuit is disposed on the peripheral circuit area of the substrate. Besides, the peripheral circuit includes a number of driver bonding pads, a number of fan-out lines, and a number of connecting lines. The fan-out lines are electrically connected to the pixel array. Each of the connecting lines connects one of the driver bonding pads and one of the fan-out lines. Additionally, the connecting lines are arranged in different pitches. Each of the marks is disposed between two adjacent connecting lines.Type: ApplicationFiled: February 10, 2009Publication date: May 13, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Kuei-Sheng Tseng, Hsiang-Pin Fan, Ming-Chang Shih
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Patent number: 7714972Abstract: An exemplary liquid crystal display (2) includes a liquid crystal panel (20) and a drive integrated circuit (IC) (21). The liquid crystal panel includes a plurality of circuit pads (202), a first positional mark (2031), and a second positional mark (2032). The drive IC includes a plurality of metal bumps (210) respectively electrically connected to the circuit pads of the liquid crystal panel, a first sideline (2131), and a second sideline (2132) oriented at an angle relative to the first sideline. A distance from the first positional mark to a nearest one of the circuit pads is equal to a distance from the first sideline to a nearest one of the metal bumps. A distance from the second positional mark to a nearest one of the circuit pads is equal to a distance from the second sideline to a nearest one of the metal bumps.Type: GrantFiled: November 20, 2006Date of Patent: May 11, 2010Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.Inventor: Yong-Ming Wang
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Patent number: 7705954Abstract: An LCD and a fabrication method thereof are provided. The LCD includes a gate pad. The gate pad includes a gate ITO electrode formed on a substrate, a first and a second gate pad bottom electrode formed on a predetermined region of the gate ITO electrode, a gate insulating layer formed on the first and the second gate pad bottom electrode, a passivation layer formed on the gate insulating layer, a gate pad top electrode formed on the passivation layer, and at least one contact hole. The LCD further comprises a liquid crystal panel having a gate line that has a dual structure integrally formed with the first gate pad bottom electrode and the second gate pad bottom electrode.Type: GrantFiled: June 7, 2006Date of Patent: April 27, 2010Assignee: LG. Display Co., Ltd.Inventor: Chang Deok Lee
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Patent number: 7705952Abstract: The present invention provides an electronic device and manufacturing method thereof. The interconnecting leads of adjacent fan-out blocks have different heights along boundary area, thereby making the resistance of the adjacent interconnecting leads uniform and ensuring the quality of the electronic device.Type: GrantFiled: November 7, 2006Date of Patent: April 27, 2010Assignee: AU Optronics CorporationInventors: Ming-Chin Lee, Ming-Sheng Lai
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Patent number: 7701543Abstract: A method of layout of a driving chip of an LCD, for reducing a size of the LCD, includes forming a first pin group including a plurality of pins utilized for outputting gate driving signals along a first direction, forming a second pin group including a plurality of pins utilized for outputting gate driving signals along the first direction, forming a first wire group including a plurality of wires each coupled between a pin of the first pin group and a panel of the LCD, and forming a second wire group including a plurality of wires each coupled between a pin of the second pin group and the panel, wherein each wire of the second wire group includes at least a bender formed inside the driving chip.Type: GrantFiled: January 21, 2007Date of Patent: April 20, 2010Assignee: NOVATEK Microelectronics Corp.Inventor: Ching-Wu Tseng
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Publication number: 20100085526Abstract: A liquid crystal display panel includes a first transparent substrate, a second transparent substrate opposite to the first transparent substrate, and a sealant disposed therebetween. The first transparent substrate includes a peripheral region, and a plurality of conductive lines disposed in the peripheral region. The conductive lines include a plurality of transparent conductive lines and non-transparent conductive lines. The sealant is disposed in the peripheral region.Type: ApplicationFiled: January 14, 2009Publication date: April 8, 2010Inventors: Te-Yu Chen, Chin-Lung Yeh, Yu-Fang Wang
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Patent number: 7692753Abstract: A flat panel display device includes a display area where pixel cells are defined by each of a plurality of data signal lines and a plurality of gate signal lines, and a plurality of inspection signal lines for inspecting line defects in the data signal lines and the gate signal lines of the display area include a connecting part in which a divided signal line overlaps underlying inspection signal lines with an insulating film therebetween.Type: GrantFiled: June 30, 2006Date of Patent: April 6, 2010Assignee: LG. Display Co., Ltd.Inventors: Chang Hoon Lee, Mon Soo Kang
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Publication number: 20100079717Abstract: An LCD device preventing a short-circuit of adjacent link lines is disclosed. The LCD device includes a pixel area in which a plurality of gate lines and a plurality of data lines crossing the plurality of gate lines at a right angle are formed, a pad area formed at a side of the pixel area, a gate pad portion and a data pad portion formed in the pad area and respectively connected to the plurality of gate lines and the plurality of data lines, first, second, third, and fourth gate link lines connected to the plurality of gate lines and the gate pad portion and alternately arranged with an insulation layer interposed between the first, second, third, and fourth gate link lines, and first and second auto probe pads electrically connected to the first, second, third, and fourth gate link lines. The first and second gate link lines are connected to the first auto probe pad and the third and fourth gate link lines are connected to the second auto probe pad.Type: ApplicationFiled: August 6, 2009Publication date: April 1, 2010Inventors: Sung Il Park, Sang Moo Song, Dae Hyun Kim
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Patent number: 7688415Abstract: Disclosed are a liquid crystal display (LCD) and a method for manufacturing the same, in which connection stability is improved when connecting a COG, A COF, or an FPC to a driving circuit. A substrate of the LCD has a display region and a non-display region at a peripheral area thereof. Terminals are provided to electrically connect an external circuit and a circuit of the display region and the non-display region. A flat protective layer is formed on the terminals. A plurality of pads are respectively formed of a first contact region and a flat second contact region, and each of the pads contacts a corresponding terminal, which is formed through a pad contact hold formed on the protective layer, at the first contact region, and each of the pads is electrically connected through an anisotropic conductive resin to a terminal of the external circuit by a pressing process at the flat second contact region.Type: GrantFiled: October 2, 2006Date of Patent: March 30, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
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Publication number: 20100073618Abstract: A liquid crystal display includes: a liquid crystal panel assembly including pixels, gate lines, data lines and a first gate driver; and a driving chip disposed on the liquid crystal panel assembly. A shape of the liquid crystal panel assembly is rectangular and the liquid crystal panel assembly includes a long edge and short edge. The gate lines extend in a same direction as the short edge, and the data lines extend in a same direction as the long edge. The pixels are disposed in pixel rows and are connected to the gate lines and the data lines. The first gate driver is disposed on a peripheral area of the long edge, and the driving chip is connected to the data lines.Type: ApplicationFiled: May 18, 2009Publication date: March 25, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Jong-Kun YOO
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Patent number: 7684006Abstract: A chip on glass type liquid crystal display device and a method for fabricating the same are provided in which a surface of a pad electrode for attaching a flexible printed circuit film is embossed to increase an adhesive force between a pad electrode and a flexible printed circuit film, thereby ensuring contact between the pad electrode and the flexible printed circuit film. Unit pixels in an active region contain thin film transistors formed at intersections of gate lines and data lines. A pad electrode is formed in an inactive region. An embossing pattern is formed on the pad electrode. An adhesive is provided on the pad electrode including the embossing pattern and an external drive circuit part is connected to the pad electrode by the adhesive.Type: GrantFiled: April 1, 2009Date of Patent: March 23, 2010Assignee: LG Display Co., Ltd.Inventor: Tae Woo Jung
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Patent number: 7679189Abstract: A display device includes a drive circuit chip, and a substrate on which the drive circuit chip is mounted. The drive circuit chip includes a semiconductor substrate, an insulation layer, a first conductive layer and a second conductive layer formed of metal between the semiconductor substrate and the insulation layer, and a first bump and a second bump formed over the insulation layer. The first bump is superposed with the first conductive layer, and a profile of the first bump in plan view is within a profile of the first conductive layer in plan view. The second bump is superposed with the second conductive layer, and a profile of the second pump in plan view is beyond a profile of the second conductive layer in plan view.Type: GrantFiled: November 16, 2006Date of Patent: March 16, 2010Assignee: Hitachi Displays, Ltd.Inventors: Hideaki Abe, Makoto Sato, Mitsuru Goto
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Patent number: 7679084Abstract: A TFT array panel and a method for fabricating the same is disclosed, wherein an adhesion force between an elongated wire and a TFT array panel pad is improved by increasing the contact area of a bonding pad. The TFT array panel pad includes a first conductive layer formed in a pad region on an insulating substrate. The first conductive layer includes a plurality of conductive islands and holes. A second conductive layer is formed over and covers the first conductive layer.Type: GrantFiled: November 10, 2003Date of Patent: March 16, 2010Assignee: LG Display Co., Ltd.Inventors: Kyo Seop Choo, June Ho Park
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Patent number: 7675602Abstract: A pillar-shaped spacer is disposed at the position between the boundary line of adjacent liquid crystal cells and an OLB terminal so as to face the end portion of the OLB terminal and so as to be interposed between a first large-size substrate and a second large-size substrate. Even when the respective liquid crystal cells are separated from one another along the boundary lines of the adjacent liquid crystal cells, exfoliation of the OLB terminals is prevented by the pillar-shaped spacers, so that extra cutting margins between the adjacent liquid crystal cells can be reduced and the manufacturing performance and the built-in number of the liquid crystal cells can be enhanced.Type: GrantFiled: June 20, 2007Date of Patent: March 9, 2010Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventor: Satoru Yamanaka
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Patent number: 7671958Abstract: A liquid crystal device includes a first substrate, a second substrate, liquid crystal, a switching element, a signal wiring, a planarizing film, a first electrode, an electrode insulating film, a second electrode, and a terminal. The terminal is provided at least in a portion of a region on the first substrate in which the planarizing film is not formed. The terminal includes a terminal body portion, a terminal insulating film, and a terminal electrode portion. The terminal body portion is made of the same material as that of the signal wiring. The terminal insulating film is made of the same material as that of the electrode insulating film. The terminal electrode portion is made of the same material as that of the second electrode. The terminal electrode portion is electrically connected to the terminal body portion through the opening region.Type: GrantFiled: August 21, 2007Date of Patent: March 2, 2010Assignee: Epson Imaging Devices CorporationInventor: Shin Fujita
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Patent number: 7671957Abstract: A TFT array substrate of a display device according to an embodiment of the present invention includes: a plurality of scanning signal lines formed in a display region; a plurality of display signal lines formed in the display region; a plurality of TFTs arraigned in matrix in the display region; a plurality of scanning lead-out lines arranged in a frame region formed outside the display region in accordance with the scanning signal lines; a gate insulating film formed on the plurality of scanning lead-out lines; and a first conductive layer formed on the gate insulating film and applied with a predetermined potential, the first conductive layer being formed to cover the plurality of scanning lead-out lines outside the sealing material.Type: GrantFiled: June 21, 2007Date of Patent: March 2, 2010Assignee: Mitsubishi Electric CorporationInventors: Hironori Aoki, Akio Nakayama, Manabu Tanahara
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Patent number: 7671363Abstract: In at least one embodiment of the disclosure, an electro-optical device includes a peripheral circuit wiring arranged in a peripheral area located peripheral to a pixel area. The peripheral circuit wiring has overlapping portions that overlap vertical conduction terminals in plan view. The overlapping portions are arranged on a lower layer side relative to the vertical conduction terminals. An insulating film electrically insulates the overlapping portions of the peripheral circuit wiring from the vertical conduction terminals.Type: GrantFiled: June 19, 2007Date of Patent: March 2, 2010Assignee: Seiko Epson CorporationInventor: Masao Murade
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Patent number: 7667810Abstract: A mobile terminal comprising a frame, a flexible circuit wrapped around a portion of an edge of the frame, and a bracket located at an appropriate location between the frame and the flexible circuit along the edge of the frame. The bracket protects certain components of the flexible circuit during assembly of the mobile terminal and supports the frame during use of the mobile terminal.Type: GrantFiled: July 19, 2006Date of Patent: February 23, 2010Assignee: LG Electronics Inc.Inventor: Oh-Il Kwon
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Publication number: 20100039604Abstract: A liquid crystal display having an electrode pad for compensating for differences in resistance of electrode links. A pad portion in contact with a driving circuit includes a transparent electrode pattern having a length that depends on the length of an associated electrode link that is connected between the pad portion and a corresponding signal line at a pixel area on which a plurality of liquid crystal cells are arranged. Accordingly, resistance differences that depend on the length of the electrode links are compensated for using electrode pads, thereby making signal conductors with substantially equal resistances.Type: ApplicationFiled: October 22, 2009Publication date: February 18, 2010Inventor: Hong Jin KIM
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Patent number: 7663727Abstract: A display device includes a display panel; plural first semiconductor chips mounted on the periphery of a first side of a substrate forming the display panel in a first direction; and first power source wiring layer provided on the periphery of the first side substrate. A location of a bump electrode of the first semiconductor chip provided on one end in the first direction, the bump electrode being connected to the first power source wiring layer, is different from a location of a bump electrode of the first semiconductor chip provided on the other end in the first direction, the bump electrode thereof being connected to the first power source wiring layer.Type: GrantFiled: December 26, 2006Date of Patent: February 16, 2010Assignee: Hitachi Displays, Ltd.Inventor: Fumiaki Komori
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Patent number: 7663728Abstract: A system for providing conducting pads of a display panel has a base layer on a substrate, a first insulator on the base layer having a plurality of grooves, a second conductive layer inside the grooves, and a patterned third conductive layer covering the second conductive layer. The first insulator serves as a barricade for fixing the second conductive layer in the grooves.Type: GrantFiled: March 28, 2006Date of Patent: February 16, 2010Assignee: TPO Displays Corp.Inventors: Hong-Pin Ko, Chien-Chih Chen, Chia-Cheng Lin, Wen-Chieh Teng, Ping Luo
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Patent number: 7656494Abstract: A display device in which a driving chip is attached to a display panel by using an anisotropic conductive film to from a strong adhesive bond between the body of the driving chip and the display panel and to electrically connect contact terminals on the driving chip with contact pads on the display panel.Type: GrantFiled: January 24, 2008Date of Patent: February 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-yub Lee, Soong-yong Joo, Jung-sun Lee, Suk-ki Jung
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Patent number: 7652741Abstract: Disclosed is an active matrix substrate which includes a display area and a terminal area located outside the display area. The terminal area includes extraction wirings connected with signal lines and scanning lines of the display area. A testing terminal for making contact with a probe of a prober and a connection terminal on which a chip is mounted are provided on each of the extraction wirings. The terminals are connected with the extraction wirings through contact holes. Even when an area of the testing terminal is larger than an area of the connection terminal, an opening area of a second contact hole for the testing terminal is reduced to an area smaller than an opening area of a first contact hole for the connection terminal.Type: GrantFiled: October 3, 2006Date of Patent: January 26, 2010Assignee: NEC LCD Technologies, Ltd.Inventor: Kenji Yoshioka
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Patent number: 7649606Abstract: An electro-optical device includes a substrate, a plurality of external connection terminals provided on the substrate, an electronic component mounted on the substrate and having a plurality of terminals, and a plurality of wires that electrically connect the plurality of external connection terminals to the plurality of terminals of the electronic component. A constant-potential wire is provided in the vicinity of locations of connections of at least some of the plurality of wires with the respective terminals of the electronic component.Type: GrantFiled: December 6, 2006Date of Patent: January 19, 2010Assignee: Epson Imaging Devices CorporationInventors: Nobuhito Matsumoto, Masaru Ito
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Patent number: 7649608Abstract: A display device includes a display panel, a driving chip, and a non-conductive adhesive film. The display panel includes a pad member having a plurality of conductive pads. The driving chip includes a body and a plurality of bumps. The body has a driving circuit. The bumps are protruded from the body to make contact with the pads, respectively. The non-conductive adhesive film fixes the driving chip to the pad member. Therefore, a manufacturing cost is decreased, and a yield is increased.Type: GrantFiled: March 3, 2006Date of Patent: January 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Mi-Sook Yim, Ho-Min Kang, Won-Gu Cho, Seung-Jun Lee, Hoon-Kee Min, Jeong-Ho Hwang, Byoung-Hun Lee
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Publication number: 20100007841Abstract: A method of manufacturing a display panel includes forming a first display substrate including a plurality of pixel electrodes, a plurality of test signal lines, and a plurality of test pads, forming a second display substrate including a common electrode, forming a short point at a position corresponding to the test pads, dividing the second display substrate into a plurality of regions insulated from each other, aligning and attaching the first display substrate and the second display substrate to each other, removing an edge portion of the first display substrate to expose an edge portion of the second display substrate, and applying a voltage to the first display substrate and the second display substrate through a voltage application portion of the exposed edge portion of the second display substrate.Type: ApplicationFiled: April 29, 2009Publication date: January 14, 2010Inventors: Seung-Soo BAEK, Seong-Young Lee
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Patent number: 7646461Abstract: A liquid crystal display device and a method for manufacturing the same are disclosed which are capable of preventing occurrence of contact errors between pads of gate or data lines and pad electrodes. The liquid crystal display device includes a signal line and a signal line pad arranged in one direction, an insulating film formed on the signal line and the signal line pad, the insulating film including at least one contact hole, through which a predetermined portion of the signal line pad is exposed, and a pad electrode formed on the insulating film, and electrically connected with the signal line pad via the at least one contact hole. The insulating film includes inner side walls defining the at least one contact hole, and at least one of the inner side walls has a slope gentler than a slope of the remaining inner side walls.Type: GrantFiled: May 24, 2005Date of Patent: January 12, 2010Assignee: LG. Display Co., Ltd.Inventors: Chul Sang Shin, Eun Hong Kim
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Patent number: 7646464Abstract: The present invention can easily inspect the connection between a flexible printed circuit board and terminals. In a display device which includes a display panel which forms a plurality of lines as first lines on a terminal portion thereof, and a film-like substrate which forms a plurality of lines as second lines thereon, the display panel has a determination terminal which is arranged close to the terminal portion, has a width larger than a width of the terminal, and has a portion thereof removed, the film-like substrate forms third lines and fourth lines arranged close to the second lines thereon, the third lines face the determination terminal, and the fourth lines face the removed portion of the determination terminal from which the portion is removed.Type: GrantFiled: June 13, 2006Date of Patent: January 12, 2010Assignee: Hitachi Displays, Ltd.Inventor: Yuuichi Takenaka
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Patent number: 7643108Abstract: A liquid crystal display panel is provided. The panel comprises a first substrate and a second substrate which have a display area and a non-display area, which is located around the display area. The panel comprises a plurality of dummy pixel structures in the non-display area to provide a voltage for aligning the liquid crystal materials in the non-display area.Type: GrantFiled: March 3, 2008Date of Patent: January 5, 2010Assignee: AU Optronics Corp.Inventors: Shui Huang, Wei-Chieh Sun
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Patent number: 7643122Abstract: The present invention provides a liquid crystal display panel that is adaptive for preventing a liquid crystal contamination as well as improving an adhesive strength of a sealant and an organic insulating film, and a fabricating method thereof. A liquid crystal display device according to an embodiment of the present invention includes: a first and a second substrate having a liquid crystal region, a sealant region, and an outer region; a wiring disposed on the first substrate, the wiring crossing the sealant region; a gate insulating film disposed on the wiring; an organic insulating film disposed on a portion of the wiring; and a sealant disposed on the sealant region of the first and second substrates, wherein the sealant is in contact with the gate insulating film.Type: GrantFiled: June 28, 2005Date of Patent: January 5, 2010Assignee: LG Display Co., Ltd.Inventor: Byung Chul Ahn
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Patent number: 7639338Abstract: A LCD device includes external terminals for metallic interconnects in a peripheral area on which TCPs are mounted. The external terminal includes a first ITO film connected to the metallic interconnect, a second ITO film formed on the first ITO film and a plurality of insulator islands sandwiched between the first ITO film and the second ITO film. The surface of the second ITO film has convex and concave portions whereby electric connection between the terminal of the TCP and the second ITO film is improved.Type: GrantFiled: May 9, 2005Date of Patent: December 29, 2009Assignee: NEC LCD Technologies, Ltd.Inventors: Shinichi Tomari, Futoshi Nakanishi
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Patent number: 7636145Abstract: In a display apparatus and a manufacturing method of the display apparatus, the display apparatus includes a display panel having signal lines and an insulating layer, and a signal generator electrically connected to the signal lines and adhering to the display panel. The signal lines include pads formed at ends thereof, respectively. The organic insulating layer is partially removed such that the via holes are formed between the pads of the signal lines to reduce a step-difference between an area in which the pads are formed and an area in which the pads are not formed. Thus, the display apparatus may enhance the coupling force between the signal generator and the display panel.Type: GrantFiled: February 14, 2006Date of Patent: December 22, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Goo Jung, Chun-Gi You, Chul-Ho Kim, Kyung-Min Park, Il-Gon Kim
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Patent number: 7636146Abstract: A liquid crystal panel includes a terminal group made of first to third terminal groups. A driving signal is supplied to the first and the third terminal groups. At the same time, an image signal is supplied to the second terminal group. The driving signal includes a higher frequency component than the image signal. Input terminals of the first and the third terminal groups have a larger area than the input terminals of the second terminal group, and thus the contact resistance thereof is small. Accordingly, it is possible to prevent the driving signal from becoming dull.Type: GrantFiled: August 6, 2004Date of Patent: December 22, 2009Assignee: Seiko Epson CorporationInventor: Shin Fujita
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Patent number: 7633592Abstract: A relaxation time in a common inversion drive of a liquid crystal display device is minimized.Type: GrantFiled: July 10, 2006Date of Patent: December 15, 2009Assignee: Epson Imaging Devices CorporationInventors: Yutaka Kobashi, Takashi Toya
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Patent number: 7633590Abstract: An object of the present invention is to provide an image display device that is free from disconnection in a connection structure between given substrates even when operated in a hot and humid environment. An image display device according to a preferred embodiment of the invention has a TFT substrate and an FPC. The TFT substrate has a plurality of first terminals capable of application of potential. The FPC has second terminals that are connected respectively with the first terminals through an anisotropic conductive film and that are thicker than the first terminals. The second terminals include a high-potential terminal, a low-potential terminal, and a dummy terminal. The high-potential terminal is supplied with a relatively high potential that contributes to the display operation. The low-potential terminal is supplied with a relatively low potential that contributes to the display operation.Type: GrantFiled: February 21, 2006Date of Patent: December 15, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Hiroshi Ueda, Hitoshi Morishita, Shigeaki Noumi
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Patent number: 7630049Abstract: A display device having a substrate provided with a display region includes a lower layer film formed on the substrate, a transparent conductive thin film formed on the lower layer film and electrically connected thereto, and a protective film formed on the transparent conductive film in a region other than the display region to prevent malformation of the transparent conductive thin film and the lower layer film.Type: GrantFiled: April 15, 2005Date of Patent: December 8, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takafumi Hashiguchi, Akio Nakayama, Yasushi Matsui
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Patent number: 7630047Abstract: Disclosed are a liquid crystal display (LCD) and a method for manufacturing the same, in which connection stability is improved when connecting a COG, A COF, or an FPC to a driving circuit. A substrate of the LCD has a display region and a non-display region at a peripheral area thereof. Terminals are provided to electrically connect an external circuit and a circuit of the display region and the non-display region. A flat protective layer is formed on the terminals. A plurality of pads are respectively formed of a first contact region and a flat second contact region, and each of the pads contacts a corresponding terminal, which is formed through a pad contact hold formed on the protective layer, at the first contact region, and each of the pads is electrically connected through an anisotropic conductive resin to a terminal of the external circuit by a pressing process at the flat second contact region.Type: GrantFiled: June 17, 2008Date of Patent: December 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-Gyu Kim
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Publication number: 20090296039Abstract: A thin film transistor (TFT) array panel with improved contact between the display signal lines and test lines is presented. The TFT array panel includes: gate lines and data lines intersecting each other, switching elements connected to the gate lines and the data lines, and at least one test line disposed near end portions of the gate lines or the data lines. An insulating layer covers the gate lines, the data lines and the switching elements and has first contact holes exposing the end portions of the gate lines or the data lines and second contact holes exposing the test lines. Auxiliary test lines are formed on the insulating layer and commonly connected to conductive layers, wherein the conductive layers connect at least one test line to the gate lines or the data lines via the first and the second contact holes.Type: ApplicationFiled: August 4, 2009Publication date: December 3, 2009Inventor: Jung-Woo PARK
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Patent number: 7626668Abstract: A method for manufacturing a pixel electrode contact structure of a thin-film transistors liquid crystal display is disclosed. First, a transparent substrate having a first insulating layer thereon is provided. Afterward, a first metal layer and a second metal layer are sequentially formed on the substrate and then be patterned by a halftone technology and an etching process, wherein the second metal layer is removed within the pixel electrode contact area. In the meantime, the drain lines of the thin-film transistor comprising the first metal layer and the second metal layer are formed. Next, a patterned passivation layer is formed on the substrate. Finally, a pixel electrode layer directly connecting the first metal layers within the pixel electrode contact structure is formed on the substrate. This invention provides the pixel electrode contact structure with low contact resistance and prevents the current leakage from the drain line to the storage capacitor.Type: GrantFiled: July 25, 2005Date of Patent: December 1, 2009Assignee: Quanta Display Inc.Inventor: Wen-Yi Shyu
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Patent number: 7626670Abstract: A thin film transistor (TFT) array panel with improved contact between the display signal lines and test lines is presented. The TFT array panel includes: gate lines and data lines intersecting each other, switching elements connected to the gate lines and the data lines, and at least one test line disposed near end portions of the gate lines or the data lines. An insulating layer covers the gate lines, the data lines and the switching elements and has first contact holes exposing the end portions of the gate lines or the data lines and second contact holes exposing the test lines. Auxiliary test lines are formed on the insulating layer and commonly connected to conductive layers, wherein the conductive layers connect at least one test line to the gate lines or the data lines via the first and the second contact holes.Type: GrantFiled: November 7, 2005Date of Patent: December 1, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Jung-Woo Park
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Patent number: 7626673Abstract: A liquid crystal display having an electrode pad for compensating for differences in resistance of electrode links. A pad portion in contact with a driving circuit includes a transparent electrode pattern having a length that depends on the length of an associated electrode link that is connected between the pad portion and a corresponding signal line at a pixel area on which a plurality of liquid crystal cells are arranged. Accordingly, resistance differences that depend on the length of the electrode links are compensated for using electrode pads, thereby making signal conductors with substantially equal resistances.Type: GrantFiled: October 24, 2008Date of Patent: December 1, 2009Assignee: LG Display Co., Ltd.Inventor: Hong Jin Kim
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Patent number: 7626202Abstract: To improve the reliability of contact with an anisotropic conductive film in a semiconductor device such as a liquid crystal display panel, a terminal portion (182) of a connecting wiring (183) on an active matrix substrate is electrically connected to an FPC (191) by an anisotropic conductive film (195). The connecting wiring (183) is manufactured in the same process with a source/drain wiring of a TFT on the active matrix substrate, and is made of a lamination film of a metallic film and a transparent conductive film. In the connecting portion with the anisotropic conductive film (195), a side surface of the connecting wiring (183) is covered with a protecting film (173) made of an insulating material.Type: GrantFiled: July 29, 2008Date of Patent: December 1, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 7626647Abstract: An electrostatic discharge protection device, an electrostatic discharge protection structure, and a manufacturing process of the device are provided. The electrostatic discharge protection device includes at least four doping regions, wherein two adjacent regions are of different types. The electrostatic discharge protection structure includes an electrostatic discharge bus, a plurality of first electrostatic discharge protection devices connecting to the gates of the display transistors and the electrostatic discharge bus, a plurality of second electrostatic discharge protection devices connecting to the source/drain of the transistors and the electrostatic discharge bus, and a plurality of third electrostatic discharge protection devices connecting to the input/output terminals of the drive circuit of the display and the electrostatic discharge bus.Type: GrantFiled: August 21, 2007Date of Patent: December 1, 2009Assignee: AU Optronics Corp.Inventors: Ming-Dou Ker, Chih-Kang Deng, Wein-Town Sun
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Patent number: 7616285Abstract: Electronic circuit wiring wherein wiring breakdown due to electrostatic discharge is reduced, the yield is improved, and the reliability of a display panel is improved, and a display device provided with the same, having an effective display region 12 formed on a board and electronic circuit wiring 13 arranged so as to surround the effective display region 12 in order to protect the effective display region from static electricity and laid so as to include a crossover region 15 partially crossing other wiring via an insulation film, wherein the electronic circuit wiring 13 includes a start point terminal A11, an end point terminal B11 arranged on the start point terminal All side via the crossover region 15, and a resistor element R11, the resistor element R11 being connected to the start point terminal A11 side with respect to the crossover region 15.Type: GrantFiled: November 18, 2004Date of Patent: November 10, 2009Assignees: Sony Corporation, Kabushiki Kaisha Toyota JidoshokkiInventors: Ryuya Koike, Takayuki Itou, Takashi Toyoda
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Publication number: 20090273753Abstract: A liquid crystal display comprises: a first substrate; a display area disposed on the first substrate; subpixels disposed in the display area; a scan driver for supplying a scan signal to scan lines connected to the subpixels; a data driver for supplying a data signal to data lines connected to the subpixels; first transistors disposed on the first substrate adjacent to one side of the display area and connected to the data lines; second transistors disposed on the first substrate adjacent to the other side of the display area and connected to the scan lines; and a test pad connected to the first transistors and second transistors.Type: ApplicationFiled: December 19, 2008Publication date: November 5, 2009Inventor: Cheonghun Park
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Patent number: 7609348Abstract: Measures are taken against the problem that a conductive matter is attached to an organic film in the vicinity of terminal sections of a display device, which causes electrical connection between the terminals when the terminals are connected to a flexible wiring board. An organic passivation film is formed to the vicinity of the end of the substrate, and a conductive matter is attached to the edge of the organic passivation film. The conductive attachment is divided by extending a bridge section of the organic passivation film to the end of the substrate. Thus, even if a flexible wiring board is connected thereto, the electrical connection between the terminals can be prevented.Type: GrantFiled: October 11, 2007Date of Patent: October 27, 2009Assignee: Hitachi Displays, Ltd.Inventors: Takanori Nakayama, Ryouhei Suzuki, Atsuhiro Katayama
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Patent number: RE41324Abstract: A liquid crystal display including a plurality of parallel display electrodes wired over an electrode substance, terminals for the display electrodes led out to the end portion of the electrode substrate and connected to TCPs, the terminals having pitches smaller than those of the display electrodes, and leadout wirings for connecting the display electrodes and the terminals. The leadout wirings each consist of a portion extending from a respective display electrode as it is, a portion extended from the respective terminals as it is, and almost parallel, included linear wiring that connects the two extended portions. The length of the two extended portions and the width of the inclined linear wiring are adjusted so that the wiring resistances of the individual leadout wirings are substantially equal.Type: GrantFiled: June 21, 2001Date of Patent: May 11, 2010Assignee: Hitachi Displays, Ltd.Inventors: Tatsuhisa Fujii, Mitsugu Katayama, Tomohide Ohira, Tatsuyuki Fumikura, Hitomi Madokoro