Featuring Flexible Circuit (i.e., Tape Automated Bonding (tab), Etc.) Patents (Class 349/150)
  • Patent number: 8004620
    Abstract: The present invention is directed to providing a technology for display devices where a transparent cover is pasted on a display panel according to which inconsistencies resulting from expansion of the polarizing plate in the vicinity of an end portion caused by moisture can be prevented, and the adhesive can be prevented from sagging when the display panel and the transparent cover are pasted together. A display device according to the invention is provided with: a liquid crystal display panel having a first substrate, a second substrate provided on the viewer side of the above described first substrate and a liquid crystal layer sandwiched between the above described first substrate and the above described second substrate; and a transparent cover pasted on the surface of the above described liquid crystal display panel on the above described viewer side using an adhesive.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 23, 2011
    Assignee: Hitachi Displays. Ltd.
    Inventors: Katsuhiko Ishii, Risa Takahashi, Yasushi Sano
  • Patent number: 8004645
    Abstract: A liquid crystal display device includes: a liquid crystal panel including a plurality of pixel cells formed at every regions defined by a plurality of data lines and gate lines; a gate built-in circuit, built-in the liquid crystal panel, for supplying gate-on voltages to the gate lines; a driving integrated circuit for driving the gate built-in circuit and supplying video signals to the data lines; and a pad region including a plurality of input/output terminals electrically connected to input/output bumps of the driving integrated circuit in the liquid crystal panel.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: August 23, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Chang Keun Park
  • Patent number: 7995183
    Abstract: A pixel TFT formed in a pixel region is formed on a first substrate by a channel etch type reverse stagger type TFT, and patterning of a source region and a drain region, and patterning of a pixel electrode are performed by the same photomask. A driver circuit formed by using TFTs having a crystalline semiconductor layer, and an input-output terminal dependent on the driver circuit, are taken as one unit. A plurality of units are formed on a third substrate, and afterward the third substrate is partitioned into individual units, and the obtained stick drivers are mounted on the first substrate.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: August 9, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Yasuyuki Arai, Hideaki Kuwabara
  • Publication number: 20110187980
    Abstract: A display apparatus includes a liquid crystal display panel, a flexible circuit board connected to a connection portion formed on one side of the liquid crystal display panel, a display window bonded to a display surface of the liquid crystal display panel so that an end face thereof protrudes from an end face on one side of the liquid crystal display panel, an exterior member in which an opening where the display window is arranged is formed, and a first light shielding member arranged so that the flexible circuit board positioned near a gap is covered therewith if the display window is arranged in the opening so that the gap is formed between the end face of the display window and the end face of the opening.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 4, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Keita Iwai, Hisakazu Hazama
  • Patent number: 7990512
    Abstract: 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: Grant
    Filed: August 27, 2009
    Date of Patent: August 2, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Seung-Hoon Yang
  • Patent number: 7986392
    Abstract: An exemplary liquid crystal display includes a printed circuit and a bottom tray. The printed circuit board defines a plurality of through holes therein. The bottom wall includes a plurality of deformable fixing members and blocking members respectively extending from the bottom wall. Each deformable fixing member includes a protrusion extending through a respective one of the through holes of the printed circuit board, engagement of the protrusions in the through holes blocks movement of the printed circuit board in directions parallel to the bottom wall. The blocking members hold edge portions of the printed circuit board and block movement of the printed circuit board in a direction away from the bottom wall. The printed circuit board is secured to the bottom tray by cooperation of the deformable fixing members and the blocking members.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: July 26, 2011
    Assignee: Chimel Innolux Corporation
    Inventor: Chien-Chung Fang
  • Patent number: 7986391
    Abstract: An exemplary liquid crystal display (50) includes plural integrated circuit bonding regions (51), plural flexible printed circuit bonding regions (52), and plural wires (53). Each of the wires includes a first branch (535) connecting to a corresponding one of the integrated circuit bonding regions, and two second branches (538). Each of the second branches connects between the first branch and a corresponding one of the flexible printed circuit bonding regions. The liquid crystal display can provide high reliability.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: July 26, 2011
    Assignee: Chimei Innolux Corporation
    Inventor: De-Ching Shie
  • Patent number: 7985078
    Abstract: The electrode junction structure includes: a glass substrate; a plurality of flexible substrates, in a planar view, arranged to cross over an edge of the glass substrate and arranged to have a space from each other along the edge; an adhesive for joining the glass substrate and each flexible substrate; and a sealing resin for covering junction portions between the glass substrate and each flexible substrate, wherein an edge of the sealing resin is formed so that the edge of the sealing resin has, in the planar view, a consecutive waveform portion in which a convex portion and a concave portion alternate with an imaginary line as a center axis, the imaginary line being parallel to the edge of the glass substrate and locating outer than the edge of the glass substrate, and wherein the convex portions are formed to be located on the flexible substrates.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: July 26, 2011
    Assignee: Panasonic Corporation
    Inventors: Kentaro Kumazawa, Masahiro Ono, Yoshihiro Tomura
  • Patent number: 7982842
    Abstract: An interconnect structure for a display device includes a driver from which display data are supplied, and an interconnect material having a plurality of signal lines disposed in parallel through which the display data are supplied from the driver. In the interconnect structure for a display device, the signal lines from which the display data are transmitted via the interconnect material are rearranged such that the display data via the signal lines having a comparatively larger effect of the inductance components and the display data via the signal lines having a comparatively smaller effect of the inductance components in the interconnect material are alternately supplied to adjacent pixels or groups of pixels of the display device. As a result, an image is displayed based on the luminance suitable for the display data.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: July 19, 2011
    Assignee: Sony Corporation
    Inventors: Hideaki Kawaura, Koichi Katagawa, Hiroshi Sata
  • Patent number: 7982843
    Abstract: An image display apparatus includes a display panel having a plurality of wirings and a plurality of display devices connected to the plurality of wirings, a control circuit substrate which outputs a control signal and is arranged on a backside of the display panel, and a flexible printed circuit board which has a flexible substrate and wirings formed on the flexible substrate and electrically connects the display panel and the control circuit substrate. The flexible printed circuit board has an angular shape. In addition, a conductive cover covers the flexible printed circuit board from a portion connected to the control circuit substrate to a portion connected to the display panel with an angular shape according to the shape of the flexible printed circuit board, and is connected to the control circuit substrate.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: July 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventor: Aoji Isono
  • Patent number: 7983056
    Abstract: In a semiconductor device provided with terminals for external connection, input terminals, power supply terminals and ground terminals are disposed close together on part of one edge portion of two opposing edge portions. Output terminals are disposed in the vicinity of both ends of the one edge portion and on another edge portion of the two edge portions. A ground wiring is routed from the other edge portion and connected to the ground terminals. In so doing, elemental devices connected to the input terminals are disposed close together, whereby needless gaps do not arise between the elemental devices. A ground potential is also supplied by the ground wiring.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: July 19, 2011
    Assignees: Fuji Electric Systems Co., Ltd., LG Electronics Inc.
    Inventor: Takahiro Nomiyama
  • Patent number: 7973876
    Abstract: An exemplary backlight module (2) includes a light guide plate (23), a light source (25), a light source driver (27), and a frame (21). The light source is provided adjacent to the light guide plate. The light source driver is directly connected with the light source. The frame includes an upper frame (211) and a lower frame (212). The upper frame and the lower frame cooperatively form a space to accommodate the light guide plate, the light source, and the light source driver.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: July 5, 2011
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventors: Zhi-feng Fu, Yu-Liang Huang, Ke Lin
  • Patent number: 7968798
    Abstract: A base layer of a bent portion of a FPC is formed on the front side thereof with second ground bent lines arranged in a mesh pattern and third ground bent lines intersecting with the second ground bent lines in a lateral direction, and on the back side thereof with first ground bent lines along the bending direction. The first ground bent lines are electrically connected to the second ground bent lines and the third ground bent lines via through holes.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: June 28, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Tsutomu Oota
  • Patent number: 7967454
    Abstract: An electro-optic apparatus includes an electro-optic panel, a wiring board, and an integrated circuit unit. The integrated circuit unit including a heat radiating member arranged so as to overlap at least partly with the integrated circuit unit.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: June 28, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Hidekazu Hirabayashi, Tomoaki Miyashita
  • Patent number: 7965367
    Abstract: A display device which can prevent a drawback that a positive signal line and a negative signal line are separated to left and right sides of an external connector thus generating impedance mismatching in differential signals is provided.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 21, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventor: Eiji Oohira
  • Patent number: 7965285
    Abstract: A display substrate includes source lines, gate lines, an output pad part, a fan-out part and a first voltage line part. The source lines are in a display area. The gate lines cross the source lines. The output pad part is in a peripheral area surrounding the display area and is electrically connected to output terminals of a driving chip. The fan-out part is electrically connected between the output pad part and the source lines. The first voltage line part is inclined with respect to a central line of a chip area in which the driving chip is mounted toward opposite sides of the chip area to cross the fan-out part. Therefore, the line reactance of the fan-out part is decreased and the uniformity of the line resistance of the fan-out part is increased to improve image display quality.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: June 21, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun-Hee Kwak, Seung-Hwan Moon, Jong-Woong Chang
  • Patent number: 7965366
    Abstract: An exemplary flexible printed circuit board (2) includes a substrate (221), a plurality of connecting fingers (225, 227) and at least one alignment mark (229). The connecting fingers and the at least one alignment mark are located on a surface of the substrate. The at least one alignment mark is disposed between two of the connecting fingers.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: June 21, 2011
    Assignee: Chimel Innolux Corporation
    Inventor: De-Ching Shie
  • Publication number: 20110141426
    Abstract: Provided are a liquid crystal panel unit having a liquid crystal panel and a flexible printed circuit connected to each other and a method for inspecting the same with which continuity between an electrode terminal on a panel substrate of the liquid crystal panel and a wiring pattern of the flexible printed circuit can be checked with a simple and reliable method. A liquid crystal panel (3) that has a panel substrate (2) and an opposite substrate (1) disposed opposite the panel substrate (2) via a liquid crystal layer, and a flexible printed circuit (10) in which a connection portion (14) of a wiring pattern (13) is connected to an electrode terminal (4) formed on the panel substrate (2) are provided. The electrode terminal (4) has an electrode inspection region (8) that is exposed in a state where the flexible printed circuit (10) is connected, and an opening portion (17) that exposes the wiring pattern (13) is formed in a base film (11) of the flexible printed circuit (10).
    Type: Application
    Filed: August 3, 2009
    Publication date: June 16, 2011
    Inventor: Atsushi Okada
  • Patent number: 7956975
    Abstract: A flat panel display device is disclosed. The flat panel display device includes a flat display panel, a driving integrated circuit driving the flat display panel, a cover shield, and a flexible connecting film on which the driving integrated circuit is mounted. The cover shield includes adhesive areas each having an adhesive portion and a non-adhesive area having a non-adhesive portion. An end of the flexible connecting film is electrically connected to an edge of the flat display panel, and the other end is positioned in the non-adhesive area of the cover shield.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: June 7, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Jae Hyo Choi
  • Patent number: 7952677
    Abstract: An array substrate for an in-plane switching mode liquid crystal display device includes a plurality of gate lines on a substrate including a display region and a non-display region at a periphery of the display region; a plurality of common lines in the display region and parallel to the gate line, an end of each of the common lines disposed in the non-display region; a plurality of gate link lines each connected to an end of each of the gate lines and disposed in the non-display region; a gate insulating layer on the gate lines, the common lines and the gate link lines; a plurality of data lines on the gate insulating layer and crossing the gate lines to define a plurality of pixel regions in the display region; a first auxiliary common line on the gate insulating layer and in the non-display region, the first auxiliary common line crossing the gate link lines; a passivation layer on the data lines and the first auxiliary common line, the passivation layer including a first contact hole exposing the end of
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 31, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Young-Hun Lee
  • Patent number: 7952676
    Abstract: Provided is a connection structure capable of reducing the distortion of a signal. The connection structure includes a first interconnection layer including a plurality of signal lines configured to transmit an operating signal generated by a driver to a receiver; a second interconnection layer including at least one ground line configured to connect the driver and ground terminals of the receiver; and an insulating layer interposed between the first and second interconnection layers to electrically insulate the signal lines from the ground line.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Bae Lee, Jung-Man Lim, Se-ll Kim
  • Publication number: 20110109865
    Abstract: A height difference under a sealant is reduced in a case where lines are present under the sealant. There is provided a substrate having an active matrix display circuit and peripheral driving circuits, a counter substrate having a counter electrode provided on the substrate in a face-to-face relationship therewith, a sealant provided between the substrate and the counter substrate such that it surrounds the active matrix display circuit and peripheral driving circuits, a liquid crystal material provided inside the sealant, a plurality of external connection lines provided on the substrate under the sealant with a resin inter-layer film interposed therebetween for electrically connecting the active matrix display circuit and peripheral driving circuits to circuits present outside the sealant and an adjustment layer provided in the same layer as the plurality of external connection lines.
    Type: Application
    Filed: January 20, 2011
    Publication date: May 12, 2011
    Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
  • Patent number: 7940364
    Abstract: A device includes a module, a flexible unit fixed on a fixing part of which relative position to a position of the module is variable, a casing covering the module and the flexible unit, and a protector which is made of material having less scratch hardness than material of the casing. The protector has a fixing part, a protruding part and a protecting part. The fixing part, which is a part of a first surface of the protector, is fixed on the casing. The protruding part, which is a part of the protector, protrudes from an edge of the casing. The protecting part, which is a part of a second surface behind the first surface excluding the protruding part, contacts with the flexible unit.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 10, 2011
    Assignee: NEC LCD Technologies
    Inventor: Hideaki Sugawara
  • Patent number: 7940353
    Abstract: A liquid crystal display device includes a liquid crystal cell, a light source, a light guide plate, a first flexible printed cable and a second flexible printed cable. The light source emits light. The light guide plate guides the light to illuminate the liquid crystal cell. The first flexible printed cable is electrically coupled to the liquid crystal cell. The second flexible printed cable is electrically coupled between the light source and the first flexible printed cable. The second flexible printed cable has a printed circuit, a first insulating film formed on one side of the printed circuit and a second insulating film formed on the other side of the printed circuit. The printed circuit is partially exposed on the one side of the printed circuit to form a first land that is electrically coupled to the light source and a second land that is electrically coupled to the first flexible printed cable.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: May 10, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventor: Kazuya Tanaka
  • Patent number: 7940366
    Abstract: A display device is provided with a sealing member for sealing a liquid crystal layer between a flexible first substrate and a second substrate, a mounting region provided in a portion of the first substrate outside a display area in which the liquid crystal layer is sealed, the mounting region mounting a circuit component on at least a portion thereof, wherein the second substrate includes an extending region extending to face the mounting region and an adhesive arranged to bond the extending region and the mounting region is provided in at least a portion of a space between the extending region and the mounting region.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: May 10, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Noriko Watanabe
  • Patent number: 7940361
    Abstract: A liquid crystal display device including, a pair of substrates, a gate electrode of a thin film transistor (TFT) formed on one of the substrates, and a wiring layer connected to the gate electrode or an electrode of the thin film transistor, wherein at least a part of the gate electrode or a part the wiring layer is formed by a layer structured by a pure copper layer and a Cu—Mn alloy layer including Mn, wherein a concentration of Mn in the Cu—Mn alloy layer is more than 0.1 and not more than 20 atomic percentage within a solubility limit of Mn in the copper, and wherein a boundary surface between the Cu—Mn alloy layer and said one of the substrate includes an oxide layer having a Mn oxide layer.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: May 10, 2011
    Assignee: Advanced Interconnect Materials, LLC
    Inventor: Junichi Koike
  • Publication number: 20110102726
    Abstract: A liquid crystal display module includes: a liquid crystal display panel; a backlight light source; a casing enclosing the liquid crystal display panel and the backlight light source; a first flexible printed wiring board electrically connected to the liquid crystal display panel and a second flexible printed wiring board connected to the backlight light source, the first flexible printed wiring board and the second flexible printed wiring board being led out from an exit formed in an identical side of the casing to an outside of the casing in a state of being superposed on each other and being bent to a rear surface side of the casing; and a connecting part for electrically connecting the second flexible printed wiring board to the first flexible printed wiring board, the connecting part being formed on the outside of the casing.
    Type: Application
    Filed: October 18, 2010
    Publication date: May 5, 2011
    Applicant: SONY CORPORATION
    Inventors: Kensuke Nobeoka, Seiji Yamane, Kazuteru Asai
  • Patent number: 7936066
    Abstract: A flexible film is provided. The flexible film includes a dielectric film; and a metal layer disposed on the dielectric film, wherein the ratio of the thickness of the metal layer to the thickness of the dielectric film is about 1:3 to 1:10. Therefore, it is possible to improve the peel strength, dimension stability, and tensile strength of a flexible film by limiting the ratio of the thicknesses of a dielectric film and a metal layer of the flexible film.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 3, 2011
    Assignee: LG Electronics Inc.
    Inventors: Sang Gon Lee, Dae Sung Kim, Woo Hyuck Chang
  • Patent number: 7932969
    Abstract: A liquid crystal display device using a light emitting diode includes a liquid crystal panel, a light guide plate including a light inlet part, the light guide plate being arranged at rear side of the liquid crystal panel, a flexible printed circuit film electrically connected to the liquid crystal panel, and a printed circuit board electrically connected to the flexible printed circuit film including a light emitting diode package mounted on a portion close to an end of the printed circuit board contacts the light inlet part of the light guide plate.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: April 26, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Won-Kee Hong
  • Patent number: 7929101
    Abstract: 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: Grant
    Filed: October 16, 2008
    Date of Patent: April 19, 2011
    Assignee: E Ink Holdings Inc.
    Inventors: Ted-Hong Shinn, Jen-Shiun Huang, Chen-Lung Lo, Yuan-Chih Tsai
  • Patent number: 7929100
    Abstract: A flexible printed circuit board for use in a liquid crystal display device includes: a body section having a light source portion embedded therein; a leg section including a solder pad connected to an external printed circuit board, the leg section being extended from the body section and integrally formed with the body section; and a single conductive layer formed across the body section and the leg section for electrically interconnecting the light source portion and the solder pad.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: April 19, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Wal-Hee Kim
  • Patent number: 7924389
    Abstract: Provided are a liquid crystal display (LCD) that has a reduced cost due to an increase in the thickness of the FPC board included of the display. The liquid crystal display includes a liquid crystal panel, a first housing having a first side and a second side and a plurality of sides, the liquid crystal panel being accommodated on the first side, a flexible printed circuit board having a first side in contact with the liquid crystal panel, and a second side disposed adjacent to the second side of the first housing, a second housing having a bottom, an opening, and a plurality of sides extending from the bottom to define a cavity, wherein the plurality of sides are fastened to the first housing, further wherein the opening is formed through the bottom to expose at least a portion of the flexible printed circuit board, and a reflective sheet disposed on a interior surface of the bottom.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: April 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-Seok Han, Myung-Han Lee, Jeong-Geun Yoo, Sung-Hyun Kim
  • Patent number: 7924363
    Abstract: A liquid crystal display device includes a support main, a lamp housing, a printed circuit board (PCB), a top case and a cover bottom. The support main is a bottom portion of a liquid crystal display device module (LCM). The lamp housing is disposed at sides of the support main in a long side direction of the support main. The PCB is disposed on a back surface of the support main. The top case is a top portion of the LCM and has projection pieces from a side thereof. The cover bottom is disposed on an upper surface of the support main. The cover bottom has first extension pieces for electrical connection to the top case and second extension pieces projected to a lower surface of the support main for electrical connection to the printed circuit board, thereby making secure fastening and grounding.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 12, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Sang Hyun Park
  • Patent number: 7924388
    Abstract: An object of the invention is to reduce the size of a liquid crystal display device and to enhance the reliability of a connection portion with a flexible wiring substrate. According to the invention, liquid crystal is sandwiched between a TFT substrate and a color filter substrate. The TFT substrate is formed in a larger size than that of the color filter substrate. A connection portion with a flexible wiring substrate is formed on the TFT substrate. The TFT substrate is formed with a notch at its portion connected with the flexible wiring substrate. The flexible wiring substrate is bent over the notch toward a rear side of the liquid crystal display device as accommodated in a mold. This allows for the size reduction of the overall display device and ensures the enhanced reliability of the connection portion.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: April 12, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventor: Hideaki Abe
  • Publication number: 20110080550
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a semiconductor integrated circuit for driving and controlling the liquid crystal display panel. The number of input/output wires connected to I/O terminals (bonding pads) of the semiconductor integrated circuit is reduced so as to simplify wiring patterns of the I/O wires, whereby degrees of freedom in arranging the I/O wiring patterns are enhanced. The panel has a pair of insulating substrate, and the semiconductor integrated circuit is mounted on one of the paired substrates. The semiconductor integrated circuit has a mode terminal which is fixed to a power supply potential or to a reference potential during operation of the integrated circuit, and power supply dummy terminals connected to the power supply potential or reference potential inside the semiconductor integrated circuit. The wiring patterns formed on the paired insulating substrates connect the mode terminal to the power supply dummy terminals.
    Type: Application
    Filed: December 13, 2010
    Publication date: April 7, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Kazuhisa Higuchi, Yoshikazu Yokota, Kimihiko Sugiyama
  • Patent number: 7916262
    Abstract: A signal transmission assembly includes first and second substrates respectively having first and second electrodes, and a conductive layer disposed between the electrodes. The second electrode has a trench. The conductive layer includes an adhesive and conductive particles distributed therein. The second electrode is electrically connected to the first electrode through the conductive layer, and a portion of the adhesive is filled into the trench. When the assembly is applied to a display device, the first electrode electrically connects a non-display area to a display area of a display panel. When the second electrode and a third electrode at two ends of the second substrate are electrically connected to the first electrode and a third substrate (e.g., a PCB), respectively, a signal may be transmitted from the third substrate to the display area through the second substrate, the second electrode and the first electrode to control the display.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: March 29, 2011
    Assignee: Au Optronics Corp.
    Inventors: Po-Yuan Liu, Chuan-Mau Wei, Kuo-Chih Lee
  • Patent number: 7911575
    Abstract: It is disclosed a liquid crystal display having an electrode pad for compensating for differences in resistance of electrode links. The liquid crystal display including a pixel area and a driving circuit, comprises at least two electrode links each extended from the pixel area; and at least two pads in contact with the driving circuit and the electrode links, each pad being in contact with each electrode link and having a non-resistivity that depends on a length of the each electrode link. 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: Grant
    Filed: October 22, 2009
    Date of Patent: March 22, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: Hong Jin Kim
  • Patent number: 7911554
    Abstract: A liquid crystal display module includes a liquid crystal display panel, a backlight and a frame-shaped mold frame capable of mounting the liquid crystal display panel thereon and housing the backlight. On a flexible printed circuit board which has one end thereof connected to the liquid crystal display panel, a light source is mounted in a state that the light source faces a light incident surface of a light guide plate in an opposed manner. A plurality of electronic components are mounted in the vicinity of the light source. A housing portion for housing the plurality of electronic components is formed in the mold frame. The plurality of electronic components is mounted in a state that terminals of the electronic components are arranged in the direction perpendicular to the light incident surface of the light guide plate.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 22, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventor: Eiji Oohira
  • Patent number: 7911560
    Abstract: The present invention provides a laminated liquid crystal display device having a configuration in which substrates for both panels can be electrically connected easily. The display device, which is implemented by multiple-layered liquid crystal cell panels configured by laminating a liquid crystal cell panel having a rigid panel substrate and a liquid crystal cell panel having a flexible panel substrate, makes use of the flexibility of the flexible panel substrate for making electrical connection between the flexible panel substrate and the rigid panel substrate. A part of the flexible panel substrate is protruded and, on this protrusion, electrode wire lines are provided for making electrical connection between the panel substrates. Bending the flexible panel substrate allows the electrode wire lines, formed on the protrusion, to be brought into contact with the rigid panel substrate.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Citizen Holding Co., Ltd.
    Inventor: Kiyoshi Kamiya
  • Patent number: 7911574
    Abstract: In a display device forming a board for mounting a connector which allows inputting of video data thereon and a board for mounting a display control circuit to be connected to the connector thereon on a surface of a display module opposite to an observation side, the board for mounting the connector thereon and the board for mounting the display control circuit thereon are physically separated from each other and, further, an area of the board for mounting the display control circuit thereon is set smaller than an area of the board for mounting the connector thereon.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: March 22, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yoshihiro Imajo, Kazuhiko Yanagawa
  • Patent number: 7903224
    Abstract: To long sides of a front-side liquid crystal display panel and a rear-side liquid crystal display panel on the same side, elongated portions of flexible printed circuit boards having a substantially U-shape in a plan view are respectively connected by thermo-compression bonding. Due to such a constitution, when the front-side liquid crystal display panel and the rear-side liquid crystal display panel overlapping each other use the flexible printed circuit boards having the same specification, the flexible printed circuit boards can be easily pulled around and connected to a drive printed circuit board and, at the same time, can enhance a material cutting efficiency of flexible printed circuit boards, and can provide a liquid crystal display device at a low cost.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: March 8, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventor: Fumiaki Komori
  • Patent number: 7903225
    Abstract: A display including a display panel, a circuit board and a tape carrier package structure is provided. The circuit board is disposed at the display panel. The tape carrier package structure includes a substrate having an opening, a number of leads, a chip, and a blocking bar. The substrate is between the display panel and the circuit board. A number of leads, each having an inner lead and outer lead, are disposed around the opening on the substrate. A portion of the outer leads is electrically connected to the display panel, and another portion is electrically connected to the circuit board. The chip has a number of contact points, and is disposed at the opening of the substrate. The contact points are electrically connected to the inner leads. Moreover, the blocking bar is disposed on the substrate between the chip and the display panel.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: March 8, 2011
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Po-Lung Chen
  • Patent number: 7903182
    Abstract: The present invention is directed to providing a technology for display devices where a transparent cover is pasted on a display panel according to which inconsistencies resulting from expansion of the polarizing plate in the vicinity of an end portion caused by moisture can be prevented, and the adhesive can be prevented from sagging when the display panel and the transparent cover are pasted together. A display device according to the invention is provided with: a liquid crystal display panel having a first substrate, a second substrate provided on the viewer side of the above described first substrate and a liquid crystal layer sandwiched between the above described first substrate and the above described second substrate; and a transparent cover pasted on the surface of the above described liquid crystal display panel on the above described viewer side using an adhesive.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: March 8, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Katsuhiko Ishii, Risa Takahashi, Yasushi Sano
  • Patent number: 7903223
    Abstract: In a display panel module, data driver chips are cascaded to one another and mounted on a display panel. A first flexible printed circuit (FPC) board is connected between a printed circuit board (PCB) and one end of the cascaded data driver chips for transmitting data signals to the data driver chips. A second FPC board is connected between the PCB and the cascaded data driver chips for transmitting power signals to the data driver chips.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: March 8, 2011
    Assignee: AU Optronics Corporation
    Inventors: Sheng-Kai Hsu, Chih-Hsiang Yang
  • Patent number: 7898614
    Abstract: The present invention provides a liquid crystal display module which can prevent the generation of display irregularities. The liquid crystal display module includes a liquid crystal display panel and a backlight device arranged on a back surface of the liquid crystal display panel. The backlight device is constituted of a light guide plate and a reflection sheet arranged on a back surface of the light guide plate. The liquid crystal display module includes a flexible printed circuit board having one end thereof mounted on the liquid crystal display panel and the other end thereof formed on a back side of the reflection sheet in an overlapping manner. An insulation sheet is arranged between the other end of the flexible printed circuit board and the reflection sheet.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: March 1, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yasuyuki Mishima, Takahiro Ooshina, Shinji Murooka
  • Patent number: 7898611
    Abstract: An exemplary liquid crystal display (20) includes a liquid crystal panel (22), a flexible printed circuit (23) connected to the liquid crystal panel, and a backlight module (25) configured for illuminating the liquid crystal panel. The flexible printed circuit includes a first grounding member (231). The backlight module includes a metal frame (28). The metal frame includes a first holding member (281). The first holding member of the metal frame holds the first grounding member of the flexible printed circuit such that the first grounding member is electrically connected with the metal frame.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: March 1, 2011
    Assignee: Chimel Innolux Corporation
    Inventors: Ming-Chiang Yu, Yu-Chih Hsieh
  • Patent number: 7898612
    Abstract: A liquid crystal display panel is placed on an upper mold, and a liquid crystal shutter is stored in a lower mold. Fluorescent lamps serving as a light source are disposed along the internal surface of the lower mold. A display object is disposed on the back of the lower mold. Display images can be changed by switching signals to be applied to the liquid crystal shutter or liquid crystal display panel. The cables for the fluorescent lamps are laid in a groove-like concave section formed in the upper part of the lower mold. A flexible cable extended from the liquid crystal shutter is bonded to a notched portion of the upper part of the lower mold, and coupled to a printed circuit board disposed on the flank of the lower mold.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: March 1, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventor: Yuzo Ota
  • Patent number: 7876414
    Abstract: A liquid crystal display device comprises a liquid crystal display panel and a semiconductor integrated circuit for driving and controlling the liquid crystal display panel. The number of input/output wires connected to I/O terminals (bonding pads) of the semiconductor integrated circuit is reduced so as to simplify wiring patterns of the I/O wires, whereby degrees of freedom in arranging the I/O wiring patterns are enhanced. The panel has a pair of insulating substrate, and the semiconductor integrated circuit is mounted on one of the paired substrates. The semiconductor integrated circuit has a mode terminal which is fixed to a power supply potential or to a reference potential during operation of the integrated circuit, and power supply dummy terminals connected to the power supply potential or reference potential inside the semiconductor integrated circuit. The wiring patterns formed on the paired insulating substrates connect the mode terminal to the power supply dummy terminals.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: January 25, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Kazuhisa Higuchi, Yoshikazu Yokota, Kimihiko Sugiyama
  • Patent number: 7872701
    Abstract: 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: Grant
    Filed: December 21, 2005
    Date of Patent: January 18, 2011
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventors: Chuan-Pei Yu, Chung-Liang Hsiao
  • Patent number: RE42365
    Abstract: A liquid crystal display apparatus includes a first liquid crystal display panel, a second liquid crystal display panel smaller in area than the first liquid crystal display panel. A flat backlight has an optical waveguide and a point light source placed near one side surface portion of the optical waveguide, and is placed between the first liquid crystal display panel and the second liquid crystal display panel. One reflecting layer is placed at least between the flat backlight and the second liquid crystal display panel.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: May 17, 2011
    Assignee: Casio Computer Co., Ltd.
    Inventor: Masaki Tsuji