Featuring Flexible Circuit (i.e., Tape Automated Bonding (tab), Etc.) Patents (Class 349/150)
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Patent number: 7728945Abstract: A structure for circuit assembly is applied to positional alignment in bonding process. The structure for circuit assembly comprises a first substrate, having a plurality of first terminals and both a first alignment mark and a second alignment mark located in the vicinity of the first terminals, and a second substrate, having a plurality of second terminals and a transmissive area located in the vicinity of second terminals. During the first substrate bonding with the second substrate, as the edge of the transmissive area is located between the first alignment mark and the second alignment mark, and the first alignment mark is outside of the transmissive area, the first terminals are normally connected with the second terminals.Type: GrantFiled: August 17, 2006Date of Patent: June 1, 2010Assignee: Au Optronics Corp.Inventors: Po-Yuan Liu, Chuan-Mau Wei, Chih-Yuan Chien
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Patent number: 7728919Abstract: A liquid crystal module includes a liquid crystal panel, a light source, a frame, a first flexible printed wiring board and a second flexible printed wiring board. The frame houses the liquid crystal panel and the light source. The frame has a side face with a main access component and first and second sub-access components. The first flexible printed wiring board extends through the main access component. The first flexible printed wiring board is electrically coupled to one of the liquid crystal panel and the light source. The second flexible printed wiring board extends through one of the first and second sub-access components. The second flexible printed wiring board is electrically coupled to the other of the liquid crystal panel and the light source.Type: GrantFiled: November 26, 2007Date of Patent: June 1, 2010Assignee: Funai Electric Co., Ltd.Inventor: Mitsuru Tanaka
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Patent number: 7728918Abstract: An electro-optical device includes a bent wiring board that is connected to an electro-optical panel; a frame that supports the electro-optical panel; when a direction where sides of the electro-optical panel connected to the wiring board extends is set to a first direction and a direction perpendicular to the first direction is set to a second direction, first direction holding pieces which prevent positional deviation of the electro-optical panel in the first direction, the first direction holding pieces being provided at both corner portions of the frame corresponding to a bent portion of the wiring board; and second direction holding pieces which prevent positional deviation of the electro-optical panel in the second direction, the second direction holding pieces being provided at both the corner portions of the frame corresponding to the bent portion of the wiring board.Type: GrantFiled: September 27, 2005Date of Patent: June 1, 2010Assignee: Seiko Epson CorporationInventor: Shinji Sakurai
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Patent number: 7724340Abstract: A liquid crystal display panel including power supply lines and a liquid crystal display including the liquid crystal display panel. A liquid crystal display panel includes a first substrate including a plurality of gate lines, and a plurality of data lines that are formed so as to intersect the plurality of gate lines, a second substrate that faces the first substrate and includes a plurality of color filters, a power supply unit that supplies power to a light source, power supply lines that are formed on the first substrate so as to be electrically connected to the power supply units, and a flexible printed circuit board that is electrically connected to the power supply lines.Type: GrantFiled: October 30, 2007Date of Patent: May 25, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Byeong Soo Kang, Seung Jae Kang
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Patent number: 7724339Abstract: An exemplary liquid crystal display includes a liquid crystal panel (10), a light guide plate (12) located below the liquid crystal panel, an illuminator (16) located adjacent a side of the light guide plate, and an electrical connector (15) attached to a side of the light guide plate and receiving the illuminator therein. The illuminator is mechanically attached to the electrical connector, and contact points of the illuminator are in direct physical and electrical connection with corresponding contact points of the electrical connector.Type: GrantFiled: April 23, 2007Date of Patent: May 25, 2010Assignees: Innocom Technology (ShenZhen) Co., Ltd., Innolux Display Corp.Inventors: Che-Kuei Mai, Fei-Hong Chen
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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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Patent number: 7714973Abstract: A liquid crystal display device of the present invention prevents certainly disconnection and electrical short of a wiring pattern of a flexible wiring board, and enhances bond strength between a liquid crystal panel and the flexible wiring board. A liquid crystal panel is provided with substrates, a liquid crystal and external connection terminals formed on one substrate. A flexible wiring board includes a wiring pattern connected with the external connection terminals of the liquid crystal panel. An anisotropic conductive film electrically connects between the external connection terminals of the liquid crystal panel and the wiring pattern of the flexible wiring board. And the anisotropic conductive film is extended from a formation area of the external connection terminals to an outside area along the flexible wiring board.Type: GrantFiled: January 22, 2007Date of Patent: May 11, 2010Assignee: NEC LCD Technologies, Ltd.Inventor: Futoshi Nakanishi
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Patent number: 7714954Abstract: Light-emitting elements can be accurately directly opposed to the entrance surface of a light guide at an accurate distance therefrom, and can be mounted on a single side of a printed circuit board together with other electronic components, whereby the number of manufacturing steps and the thickness of a liquid crystal display device can be reduced. The light guide and the printed circuit board are disposed on the back surface of the liquid crystal display panel, and the respective light-emitting elements are inserted through through-holes formed to extend through the printed circuit board, with the light-emitting portions of the respective light-emitting elements opposed to the entrance surface of the light guide. The light-emitting elements, together with the other electronic components, are mounted on the printed circuit board from one side. Electrodes of the light-emitting elements are bridged and secured to a mounting surface of the printed circuit board.Type: GrantFiled: December 30, 2008Date of Patent: May 11, 2010Assignees: Hitachi, Ltd, Hitachi Electronic Devices Co., Ltd.Inventors: Masayuki Aoyagi, Yasushi Morika
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Patent number: 7710528Abstract: There is provided an electro optical device including an electro optical panel formed by sticking a first substrate and a second substrate together, and a flexible wiring substrate connected to the electro optical panel.Type: GrantFiled: November 16, 2007Date of Patent: May 4, 2010Assignee: Epson Imaging Devices CorporationInventors: Kazuya Hasegawa, Tatsumi Okuda
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Patent number: 7705820Abstract: A line-on-glass type liquid crystal display device capable of preventing voltage differences between separate gate driver integrated circuits due to line resistances of LOG-signal line patterns includes a picture display area having a plurality of liquid crystal cells, gate driver integrated circuits for driving gate lines, line-on-glass type signal lines provided at an area outside the picture display area for applying driving signals to the gate driver integrated circuits, wherein each of the gate drive integrated circuits includes a gate input line resistor having a predetermined resistance value connected to each gate line. A resistance value of the gate input line resistors incrementally increases by a predetermined amount until a line resistance value of the line-on-glass type signal line connected between the gate driver integrated circuits is reached.Type: GrantFiled: November 27, 2002Date of Patent: April 27, 2010Assignee: LG Display Co., Ltd.Inventor: Jung Sik Park
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Patent number: 7705951Abstract: A liquid-crystal display device is provided which is improved in image quality by supplying a reference voltage signal to a liquid-crystal display panel through a multiplicity of distributed supply paths. The liquid-crystal display device includes a liquid-crystal display panel and a semiconductor device connected to a part of a periphery of the liquid-crystal display panel. The liquid-crystal display panel has a plurality of signal lines for supplying various signals to address pixels, on one of a pair of substrates arranged oppositely through a liquid crystal. The signal lines include a common bus line for supplying a reference voltage signal. The semiconductor device is structured with a semiconductor chip mounted on a flexible board. The flexible board at least has a line leading to a terminal for supplying a signal to the signal line of the liquid-crystal display panel through the semiconductor chip.Type: GrantFiled: May 13, 2008Date of Patent: April 27, 2010Assignee: Hitachi Displays, Ltd.Inventors: Yuuichi Takenaka, Kikuo Ono
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Patent number: 7696614Abstract: A driver module structure includes a flexible circuit board (2) provided with a wiring pattern (7), a semiconductor device mounted on the flexible circuit board (2), and an electrically conductive heat-radiating member (4) joined to the semiconductor device. The wiring pattern (7) includes a ground wiring pattern (8). The flexible circuit board (2) has a cavity (9) that exposes a portion of the ground wiring pattern (8). The exposed portion of the ground wiring pattern (8) and the heat-radiating member (4) are connected to establish electrical continuity via a member (11) that is fitted into the cavity (9).Type: GrantFiled: December 15, 2008Date of Patent: April 13, 2010Assignee: Panasonic CorporationInventors: Hiroyuki Fukusako, Kazunori Seno
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Patent number: 7692752Abstract: A flexible member that is configured to be connected with a liquid crystal display panel comprising a common electrode, a gate line, and a data line intersecting the gate line, includes a flexible film, a data lead that is formed on the flexible film and is connected with the data line, first and second application leads that are formed on the flexible film and apply a common voltage to the common electrode, with the data lead located between the first and second application leads, and a feedback lead that is formed on the flexible film and feedbacks the common voltage applied to the common electrode.Type: GrantFiled: July 31, 2007Date of Patent: April 6, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-soon Lee
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Publication number: 20100060841Abstract: A flexible display panel comprises a flexible substrate, a display module, a driving unit and at least one anisotropic conductive film. The display module is disposed on the flexible substrate, and has a display area and a peripheral circuit area beside the display area. The anisotropic conductive film is connected between the peripheral circuit area and the driving unit, and the driving unit is electrically connected to the peripheral circuit area through the anisotropic conductive film. In addition, the anisotropic conductive film has an insulation film and a plurality of conductive particles disposed in the insulation film. Diameters of the conductive particles are in a range from 4.5 micrometers to 7 micrometers, and a distribution density of the conductive particles is a range from 45000 grains per square millimeter to 65000 grains per square millimeter. Therefore, the flexible display panel has high reliability.Type: ApplicationFiled: October 16, 2008Publication date: March 11, 2010Inventors: Ted-Hong Shinn, Jen-Shiun Huang, Chen-Lung Lo, Yuan-Chih Tsai
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Patent number: 7674993Abstract: The invention concerns an operating element, in particular a pushbutton, for a motor vehicle, having at least of a touch-sensitive pushbutton operating on a capacitive basis and a housing, wherein the pushbutton is movably mounted in the housing, wherein a capacitor that forms the capacitance is composed of a metallic area applied to an inner or outer side of a surface facing the user, and the metallic area forms an electrode of the capacitor that is electrically contacted in the housing.Type: GrantFiled: February 4, 2008Date of Patent: March 9, 2010Assignee: PREH GmbHInventors: Martin Jeitner, Andreas Kramlich, Peter Kraus, Volker Gessner
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Patent number: 7675601Abstract: The present invention relates to an anisotropic conductive film with two or more adhesive resins simultaneously formed thereon, such that the two or more adhesive resins are simultaneously formed on a substrate of a flat panel display so as to connect various kinds of devices and flexible circuit boards thereto, thereby reducing the size of a non-display region of the substrate and reducing the number of steps of a manufacturing process. Moreover, with the use of an anisotropic conductive film with two layers of adhesive resins with different conductive particles, an excellent bonding force thereof enables a device or flexible circuit board to be stably mounted on a narrow area.Type: GrantFiled: April 20, 2006Date of Patent: March 9, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Ho Min Kang, Hee Young Park, Jong Sig Hyun, Yun Hee Kim
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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: 20100039603Abstract: An LCOS panel module including a substrate, a flexible printed circuit (FPC), an LCOS panel, and a face mask is provided. The substrate has an adhesive region on a surface thereof The FPC is disposed on the substrate and has an opening for exposing the adhesive region. The LCOS panel has a bottom surface and a top surface. The bottom surface of the LCOS panel is fixed on the adhesive region of the substrate exposed from the opening through an adhesive layer and is electrically connected to the FPC. The face mask used for framing the display region of the LCOS panel and sheltering from stray light is disposed on the LCOS panel and has a display opening. A display region of the top surface of the LCOS panel is exposed from the display opening of the face mask.Type: ApplicationFiled: August 14, 2008Publication date: February 18, 2010Applicant: HIMAX DISPLAY, INC.Inventors: Yen-Chen Chen, Bing-Jei Liao, Chia-Chang Tien, Wen-Liang Wu
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Patent number: 7663726Abstract: A liquid crystal apparatus includes a liquid crystal display panel including two substrates with liquid crystal interposed therebetween, a conductive layer provided on an outer surface of at least one of the substrates, a flexible board electrically connected to the liquid crystal display panel, and a tape-like conductive member providing an electrical connection between the conductive layer and a grounding wire of the flexible board.Type: GrantFiled: October 23, 2007Date of Patent: February 16, 2010Assignee: Epson Imaging Devices CorporationInventors: Yoji Takahashi, Kanechika Kiyose
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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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Publication number: 20100026951Abstract: A connection structure of a display panel and a flexible printed circuit board is provided. The connection structure includes the display panel, the flexible printed circuit board, and an anisotropic conductive film. The display panel includes a plurality of contact pads. Each of the contact pads includes a first metal layer, a first insulation layer, a second metal layer and a second insulation layer. The flexible printed circuit board is disposed on the contact pads of the display panel. The anisotropic conductive film is disposed between the flexible printed circuit board and the contact pads. The anisotropic conductive film is in direct contact with the exposed first metal layers and second metal layers of the contact pads.Type: ApplicationFiled: September 22, 2008Publication date: February 4, 2010Applicant: CHUNGHWA PICTURE TUBES, LTD.Inventors: Chia-Ming Chiang, Meng-Chi Liou
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Publication number: 20100026952Abstract: A display device includes: a flexible first substrate; a flexible second substrate provided facing the first substrate; a display part; and a wiring substrate. The display part has a display component which is disposed between the first substrate and the second substrate. The display component produces at least one of an optical characteristic change and a light emission. The wiring substrate is connected to a connection pad provided on at least one of the first substrate and the second substrate. At least a portion of the wiring substrate is interposed between the first substrate and the second substrate outside the display part.Type: ApplicationFiled: July 29, 2009Publication date: February 4, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Miura, Hajime Yamaguchi, Masao Tanaka, Takashi Miyazaki
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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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Publication number: 20100014016Abstract: A flexible printed circuit used for being disposed between a frame and a conductive casing of a liquid crystal module is provided. The frame includes a main plate and a side plate which is connected to a side of the main plate. The flexible printed circuit includes a body and a grounding portion. The body is used for being disposed on the main plate of the frame. The grounding portion extends from the body. The grounding portion is bent to a predetermined angle with respect to the body, so that the grounding portion is disposed on the side plate of the frame. The grounding portion has a metal layer contacting an inner wall of a side plate of the conductive casing. The flexible printed circuit has a hole located at the position where the grounding portion is connected the body.Type: ApplicationFiled: July 17, 2009Publication date: January 21, 2010Applicant: WINTEK CORPORATIONInventors: Ming-Da Chen, Ping-Yu Liang, Chin-Liang Chen
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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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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: 7646466Abstract: The liquid crystal display (LCD) device of the present invention includes a LCD panel and a resin-molded frame that houses the LCD panel, the LCD panel including first and second substrates, and a liquid crystal layer sandwiched between the first and second substrates. The two-dimensional shapes of the first and second substrates are rectangles having longer and shorter sides, the longer side of the first substrate being longer than that of the second substrate. The first substrate has a non-overlapping area that does not overlap with the second substrate. Among the four corners of the first substrate, the non-overlapping area of the first substrate has two corners adjacent to each other. At least one of the two corners forms a chamfered structure having a diagonal side that intersects the longer and shorter sides of the first substrate with the diagonal side inclined to the longer and shorter sides.Type: GrantFiled: August 22, 2007Date of Patent: January 12, 2010Assignee: Hitachi Displays, Ltd.Inventor: Shinya Hashimoto
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Publication number: 20100000767Abstract: A TAB tape for a tape carrier package may have at least one opening formed in a connection portion. The at least one opening may be provided in the connection portion and a portion of the corresponding second lead. The at least one opening may be arranged near a boundary between the corresponding first lead and the connection portion. The at least one opening may be sized to reduce the change of the lead width from the first lead to the second lead.Type: ApplicationFiled: July 28, 2009Publication date: January 7, 2010Inventors: Na-Rae Shin, Dong-Han Kim
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Patent number: 7643121Abstract: A line-on-glass (LOG) type liquid crystal display device prevents deterioration in picture quality due to line resistances in LOG signal lines includes a display area having liquid crystal cells arranged at crossings of gate and data lines, a storage capacitor arranged within each of the liquid crystal cells for maintaining charged pixel voltages, and a dummy gate line. A line-on-glass type signal line group outside the display area transmits driving signals to the gate driver integrated circuits for driving the gate lines. A first signal line outside the display area is mounted on gate tape carrier packages. A second signal line connects the first gate low voltage and dummy lines, is insulated from, and crosses the gate lines outside the display area. A third signal line connects the first gate low voltage line and the dummy gate line to connect the first and second gate low voltage lines in parallel.Type: GrantFiled: December 23, 2002Date of Patent: January 5, 2010Assignee: LG Display Co., Ltd.Inventors: Seung Kyu Choi, Kwang Soon Park, Chul Woo Im, Sang Moo Song, Choel Min Woo
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Patent number: 7639314Abstract: A method for fixing a flexible circuit board (FPC) of a display module includes providing a housing having at least a fixing pin, providing a display panel and an FPC having at least a fixing hole corresponding to the fixing pin, disposing the display panel and the FPC on the housing and folding back the FPC on another side of the housing such that the fixing pin passes through the fixing hole, and performing a hot mounting process to the fixing pin to enlarge the top end of the fixing pin to press the FPC onto the housing.Type: GrantFiled: December 21, 2005Date of Patent: December 29, 2009Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.Inventors: Chuan-Pei Yu, Chung-Liang Hsiao
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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: 7633564Abstract: A touch panel for a display device and a method of fabricating the same are disclosed. The touch panel for the display device includes upper and lower substrates, first and second transparent electrodes on opposing surfaces of the upper and lower substrates, a plurality of metal electrodes in a circumference of the first and second transparent electrodes, and a flexible printed cable having a plurality of signal applying lines extended from the upper and lower substrates to a rear side of the display device for applying signal voltages to the metal electrodes, wherein the flexible printed cable is bent at a corner of the upper and lower substrates from a top to a bottom of the display device, and has a first part extended from the corner of the display device and a second part extended from the first part and the first and second parts being perpendicular to each other.Type: GrantFiled: December 23, 2003Date of Patent: December 15, 2009Assignee: LG Display Co., Ltd.Inventors: Hee Jung Hong, Hwan Seong Yu, Byeong Hyeon Ahn
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Patent number: 7633591Abstract: This invention relates to a liquid crystal display device that bias-aging is possible even after spreading silicon over an on/off pad. A liquid crystal display device according to an embodiment of the present invention includes a liquid crystal display panel where liquid crystal cells are arranged in an active matrix pattern between an upper substrate and a lower substrate, and where a plurality of gate lines and a plurality of data lines are formed; an on/off pad formed on the lower substrate for supplying bias aging signals to the gate line and the data line and checking whether or not the liquid crystal cells are turned on; a drive IC formed on the lower substrate for supplying drive signals to the gate line and the data line; and a printed circuit board which is connected to the lower substrate and which has a signal pad for supplying the drive signal to the drive IC and a bias aging pad for supplying the bias aging signal to the on/off pad.Type: GrantFiled: June 27, 2007Date of Patent: December 15, 2009Assignee: LG Display Co., Ltd.Inventor: Ki Pyo Kim
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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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Publication number: 20090303426Abstract: A flexible printed circuit board includes a base film made of an insulating material, a power application wiring disposed on a first surface of the base film, a bypass wiring disposed on a second surface, opposite the first surface, of the base film, a first connection wiring which electrically connects the power application wiring to the bypass wiring, a second connection wiring spaced apart from the first connection wiring and which electrically connects the power application wiring to the bypass wiring, and a first cover film disposed on the first surface of the base film to cover at least a first portion of the second connection wiring. At least a first portion of the first connection wiring is exposed through the first cover film.Type: ApplicationFiled: May 4, 2009Publication date: December 10, 2009Applicant: Samsung Electronics Co., Ltd.Inventor: Tae-Joon KIM
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Patent number: 7630048Abstract: A liquid crystal display (LCD) includes a liquid crystal panel a liquid crystal panel including first and second substrates, and a liquid crystal layer disposed between the first and second substrates; a gate driving block including a plurality of gate drivers disposed in an edge area of the first substrate; a data driving block including a plurality of data drivers each connected to the first substrate and to a source printed circuit board (PCB) by a respective tape carrier package (TCP) of a plurality data TCPs; and a data pad unit disposed on each data TCP, wherein pitches of data pads disposed on each data pad unit are different in different portions of the of each data TCP, and the data pads are each to transmit a data signal from the data driving block to a data line of the liquid crystal panel.Type: GrantFiled: October 24, 2006Date of Patent: December 8, 2009Assignee: LG Display Co., Ltd.Inventors: Jin Cheol Hong, Min Hwa Kim
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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: 7626672Abstract: A portable display panel includes a liquid crystal display panel for displaying images, a backlight assembly including a light source for supplying light to the liquid crystal display panel, a bottom chassis for receiving the backlight assembly, a first printed circuit board for controlling the liquid crystal display panel and the light source, a second printed circuit board connected to the first printed circuit board and an external drive circuit, and a protrusion extending from the first printed circuit board. The protrusion has copper film exposed on its end. The copper film of the protrusion is electrically connected to the bottom chassis.Type: GrantFiled: September 12, 2006Date of Patent: December 1, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventor: Hyo Shin Song
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Patent number: 7626671Abstract: An active matrix LCD device includes a TFT panel, a counter panel and liquid crystal interposed therebetween. The TFT panel includes a plurality of scanning lines and a plurality of common lines formed in one layer and extending in a row direction, and a plurality of signal lines extending in a column direction. A coupling line for coupling the common lines together is disposed outside the pixel array of the TFT panel, such as in a TCP mounted on the TFT panel and mounting thereon a driver IC for driving the scanning lines.Type: GrantFiled: June 14, 2005Date of Patent: December 1, 2009Assignee: NEC LCD Technologies, Ltd.Inventors: Shigeru Kimura, Hiroaki Tanaka, Akira Fujita, Kiyofumi Kudou, Takahiko Watanabe, Hiroyuki Uchida, Akitoshi Maeda
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Publication number: 20090284681Abstract: A liquid crystal display device includes a liquid crystal display panel having a liquid crystal layer between a pair of substrates, a light unit arranged in overlapping with the liquid crystal display panel for illuminating the liquid crystal display panel, the light unit including a front case and a back case for housing a light member, and a flexible printed circuit board. The flexible printed circuit board has a folding back portion which is housed at the housing portion provided at the bottom of the case of the backlight unit to adjust its length. The printed circuit board is drawn out from the housing portion to outside and connected to the outer circuits. Accordingly, it is possible to provide a compact and slim type liquid crystal display device.Type: ApplicationFiled: February 6, 2009Publication date: November 19, 2009Inventor: Taishi Inoue
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Publication number: 20090284706Abstract: A flat-panel display device having test architecture is disclosed for disposing shorting bars without sacrificing wiring-on-array bus layout area of the outer-lead-bonding region. The flat-panel display device essentially includes a substrate having a plurality of driving integrated-circuit (IC) mounting areas, a plurality of signal lines and transmission lines disposed on the substrate, and a plurality of shorting bars disposed on the driving IC mounting areas. Each shorting bar is coupled to a corresponding signal line and a corresponding transmission line. Furthermore, in order to take out the laser-cutting process in the fabrication of the flat-panel display device for saving production cost, each driving IC mounting area is further disposed with a plurality of transistors for controlling the signal connections between the shorting bars and the signal lines, and also for controlling the signal connections between the shorting bars and the transmission lines.Type: ApplicationFiled: July 24, 2008Publication date: November 19, 2009Inventors: Chun-Hsin Liu, Yung-Chih Chen, Po-Yuan Liu, Tsung-Ting Tsai
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Publication number: 20090279038Abstract: A liquid crystal panel includes a signal transmission section and a flexible printed circuit (FPC). The signal transmission section includes electrical conductive terminals. The FPC includes an insulating film and conductive lines disposed on a first surface of the insulating film. The conductive lines are electrically connected to the electrical conductive terminals. The insulating film substantially covers the electrical conductive terminals.Type: ApplicationFiled: May 11, 2009Publication date: November 12, 2009Inventor: De-Ching Shie
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Patent number: 7602467Abstract: A liquid crystal display includes a display panel, a first data circuit board, a second data circuit board, and a clip. The first data circuit board has a portion of a plurality of conductors that are coupled to the display panel. The second data circuit board has a second plurality of conductors that are coupled to the display panel. A clip couples the first and the second circuit boards together. A method of assembling the liquid crystal display includes positioning a light source; coupling a clip to the first circuit board and the second circuit board that form a display panel; positioning the clip, the first circuit board, and the second circuit board below the light source; and coupling the clip to a ground plane.Type: GrantFiled: June 25, 2004Date of Patent: October 13, 2009Assignee: LG. Display Co., Ltd.Inventor: Sang Mook Lee
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Patent number: 7599020Abstract: A liquid crystal display module includes a liquid crystal display panel and a backlight unit under the liquid crystal display panel. The backlight unit includes at least one light emitting diode. The liquid crystal display module further comprises a bottom frame surrounding the backlight unit. The bottom frame comprises a printed circuit board and the at least one light emitting diode is disposed on the printed circuit board. The liquid crystal display module also includes a main frame surrounding the liquid crystal display panel and a top frame surrounding a front edge of the liquid crystal display panel and combined with the bottom frame through the main frame.Type: GrantFiled: June 13, 2006Date of Patent: October 6, 2009Assignee: LG. Display Co., Ltd.Inventor: Seung-Hoon Yang
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Patent number: 7599038Abstract: A portion of a protective layer located above a connection portion is removed to expose the connection portion which is formed of the same material as used for a data line DL in this removed portion. Then, a transparent conductive layer made of ITO is further formed on these films. The transparent conductive layer and a bump are then connected via an AFC.Type: GrantFiled: April 28, 2006Date of Patent: October 6, 2009Assignee: Epson Imaging Devices Corp.Inventor: Nobuhiko Oda
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Publication number: 20090244470Abstract: A liquid crystal shutter (50) is provided behind a liquid crystal display panel, and a light source accommodated in a lower mold (65) is provided behind the liquid crystal shutter (50). As a liquid crystal display panel flexible cable (15) and a liquid crystal shutter flexible cable (80) are placed close to each other, and connected to the same printed circuit board (75), the number of printed circuit boards (75) is able to be saved to one, as well as the number of connecters (76) for connecting the printed circuit board (75) to the outside.Type: ApplicationFiled: March 24, 2009Publication date: October 1, 2009Inventor: Hiroshi Yamate
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Patent number: 7593086Abstract: A flexible flat panel display prevents electronic units, such as a flexible printed circuit board and a driving IC, from being separated from the flexible flat panel display even when the display unit is bent. The flexible flat panel display includes: a flexible display unit including a display area adapted to display an image, a first side and a second side parallel to edges of the display area, and a third side and a fourth side perpendicular to the first and second sides, the third side and the fourth being adapted to being bent; and electronic units arranged solely on at least one of the first and second sides and absent the third and fourth sides.Type: GrantFiled: September 20, 2006Date of Patent: September 22, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jae-Kyeong Jeong, Jae-Bon Koo, Hyun-Soo Shin, Se-Yeoul Kwon, Yeon-Gon Mo
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Patent number: 7593087Abstract: A liquid crystal display device having a flexible printed circuit board to provide electrical signals from a driver printed circuit board to a liquid crystal display panel and a backlight unit, the flexible printed circuit board including a first substrate portion connected to a pad portion of the liquid crystal display panel, a second substrate portion connected to the first substrate portion and including a light source, a third substrate portion positioned between the backlight unit and the driver printed circuit board and connected to the driver printed circuit board, and at least one connection substrate portion connecting the second substrate portion to the third substrate portion, wherein the first, second, third and connection substrate portions are integrated.Type: GrantFiled: March 19, 2007Date of Patent: September 22, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventor: Jin-seok Jang
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Patent number: 7593085Abstract: The present invention provides a flexible printed circuit that is less likely to suffer from erosion (corrosion) of electrode terminals even in severe environments and a display device using the flexible printed circuit. According to the present invention, a flexible printed circuit includes a flexible FPC film, FPC interconnections formed of a given pattern on the FPC film, a solder resist covering the FPC interconnections, and FPC terminals provided at ends of the FPC interconnections to make external connection. According to the invention, the FPC terminals include at least one terminal that has an end located inside of an outline of the FPC film.Type: GrantFiled: May 16, 2006Date of Patent: September 22, 2009Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kenichi Watanabe, Hiroshi Ueda, Hiroshi Tachibana, Shigeaki Noumi
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Patent number: 7586576Abstract: The present invention relates to a mother plate for a flexible printed circuit film with a cutting mark and a display device provided with a flexible printed circuit film cut from the same. The display device includes a display panel for a panel unit displaying an image, a display panel electrode formed on the display panel, and a flexible printed circuit film electrically connected to a terminal of the display panel electrode. The flexible printed circuit film includes a wiring electrically connected to the display panel electrode, and a cutting mark having a cutting portion formed to be adjacent to the wiring in at least one edge of the flexible printed circuit film.Type: GrantFiled: September 29, 2005Date of Patent: September 8, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Young Park, Yun-Hee Kim