Patents Examined by Julie Ngo
  • Patent number: 7515240
    Abstract: A flat display panel comprises a plurality of driver ICs and one or more flexible printed circuit, a plurality of common wires formed on the substrate to electrically connect the ICs to the one or more flexible printed circuit, and at least one anisotropic conductive film that connects respective connecting terminals of the driver ICs and flexible printed circuit to terminals pads of the common wires. The anisotropic conductive film is laminated over the substrate to cover the terminal pads. The driver ICs and flexible printed circuit are aligned and attached on the anisotropic conductive layer by thermocompression bonding.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: April 7, 2009
    Assignee: Au Optronics Corporation
    Inventors: Chao-Liang Lu, Chih-Hsiang Yang, Kuo-Chih Lee
  • Patent number: 7508461
    Abstract: A polarizer integrated with a transparent conductive film for a liquid crystal display includes a lower film an optical film and a transparent conductive film. A touch panel integrated with the polarizer is formed by attaching an upper sheet to the upper surface of the polarizer integrated with a transparent conductive film. A flat panel display with an integral type touch panel includes a touch panel integrated with the flat panel display having a lower polarizer, a liquid crystal display and an upper polarizer.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: March 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Yun Cheol Jeong, Young Soo Ahn, Jang Youl Rhee, Byoung Hyun Jeong
  • Patent number: 7508468
    Abstract: A light blocking mask covering half of a picture element is formed on a first substrate. Thereafter, the first substrate and a second substrate are placed to face each other, and liquid crystals with negative dielectric anisotropy are sealed between these substrates, whereby a liquid crystal panel is formed. A polymer constituent which is polymerized by light is added in advance to the liquid crystals. Next, ultraviolet is irradiated from the side of the first substrate, and, after removing the light blocking mask, ultraviolet is once again irradiated. Thus, in picture element, a region where binding force with respect to liquid crystal molecules is large (a region where a threshold voltage in transmittance-voltage characteristics is high) and a region where binding force with respect to liquid crystal molecules is small (a region where a threshold voltage in transmittance-voltage characteristics is low) are formed.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: March 24, 2009
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shingo Kataoka, Hiroyasu Inoue
  • Patent number: 7495725
    Abstract: A transflective LCD includes an upper substrate having a common electrode formed therein; a lower substrate spaced apart by a predetermined interval from the upper substrate and facing the upper substrate, the lower substrate having a pixel region including a switching region, a reflection part, and a transmission part, and including a delta film, a thin film transistor layer, a color filter layer and a reflector formed therein; a liquid crystal layer interposed between the upper substrate and the lower substrate; and a backlight assembly disposed below the lower substrate, for supplying light toward the lower substrate.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: February 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Kyeong Jin Kim, Mi Kyoung Jang
  • Patent number: 7495733
    Abstract: A liquid crystal display and a fabricating method thereof for improving an aperture ratio are disclosed. A liquid crystal display (LCD) according to the present invention includes a gate line, a data line and a common line on the thin film transistor array substrate, the gate line crossing the data line to define a pixel region; a thin film transistor near the crossing of the gate line and the data line; a common electrode connected to the common line in the pixel region; and a pixel electrode connected to the thin film transistor in the pixel area for forming an in-plane electric field in association with the common electrode during an operation of the LCD, wherein an edge of the pixel electrode overlaps the common line with at least one insulating layer there between, and an edge of the common electrode overlaps the pixel electrode with said at least one insulating layer therebetween.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: February 24, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun Kyu Lee, See Hwa Jeong, Seung Chan Choi
  • Patent number: 7492431
    Abstract: In an active matrix liquid crystal display device, a drain and source of a TFT element for controlling power supply to a pixel electrode, are arranged so that an alignment direction of liquid crystal molecules over the source and drain does not change, thereby preventing formation of ghost images in the display. In one embodiment, an electric field generated between the source and drain is parallel to an initial non-zero alignment angle of the molecules.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 17, 2009
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Kimikazu Matsumoto, Shinichi Nishida
  • Patent number: 7489369
    Abstract: A method of manufacturing an array substrate for a liquid crystal display device includes forming a gate line, a gate pad and a gate electrode on a substrate through a first mask process, forming a data line, a data pad, a source electrode, a drain electrode and an active layer on the substrate including the gate line, the gate pad and the gate electrode through a second mask process, wherein the data line crosses the gate line to define a pixel region, the source electrode is extended from the data line, the drain electrode is spaced apart from the source electrode, and the active layer is disposed between the gate electrode and the source and drain electrodes, forming a passivation layer on an entire surface of the substrate including the data line, the source electrode and the drain electrode through a third mask process, the passivation layer being etched to expose the substrate in the pixel region, a part of the drain electrode, the gate pad and the data pad, and forming a pixel electrode, a gate pad ter
    Type: Grant
    Filed: January 5, 2006
    Date of Patent: February 10, 2009
    Assignee: LG Display Co. Ltd.
    Inventors: Youn-Gyoung Chang, Heung-Lyul Cho, Soon-Sung Yoo
  • Patent number: 7486364
    Abstract: A liquid crystal display includes first and second substrates. The first substrate has a first insulating substrate, and a pixel electrode formed on the first insulating substrate with a first opening pattern. The second substrate has a second insulating substrate, and a common electrode formed on the second insulating substrate with a second opening pattern. The first and the second opening patterns proceed parallel to each other while being arranged in an alternate manner. A liquid crystal material is injected between the first and the second substrates. A spacer is positioned at an end of the second opening pattern to maintain the distance between the first and the second substrates.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: February 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
  • Patent number: 7480024
    Abstract: An array substrate for in-plane switching (IPS) mode liquid crystal display (LCD) device includes a pixel electrode having an extension portion, a vertical portion and a horizontal portion, the extension portion being extended from the drain electrode to the pixel region, the vertical portion being vertically extended from the extension portion and the horizontal portion being over the common line and being connected to the vertical portion. The device includes a common electrode having a plurality of vertical portions and a horizontal portion, the plurality of the vertical portions being vertically extended from the common line and arranged in an alternating pattern with the vertical portion of the pixel electrode, the horizontal portion connecting the plurality of the vertical portions into one. An auxiliary line is over the horizontal portion of the pixel electrode and being overlapped with the common line.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: January 20, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Ik-Soo Kim, Gee-Sung Chae
  • Patent number: 7477331
    Abstract: A display capable of providing 2D and/or 3D images. The display comprises a liquid crystal display device and a self-emissive display device. The self-emissive display device is disposed on the rear of the liquid crystal display device, in which the liquid crystal display device provides a first image and the self-emissive display device a second image and a backlight source. One of the first and second images comprises a parallax barrier pattern for forming a three-dimensional (3D) image, and the other is a 2D image.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: January 13, 2009
    Assignee: AU Optronics Corp.
    Inventors: Yung-Lun Lin, Chih-Jen Hu, Ming-Chou Wu, Chih-Ming Chang
  • Patent number: 7474376
    Abstract: A display device of the present invention includes a first substrate and a second substrate opposed to each other, a liquid crystal interposed between the first substrate and the second substrate, an active matrix circuit and a driving circuit each comprising a thin film transistor formed over the first substrate, a resin layer formed over the active matrix circuit and the driving circuit, a spacer formed over the active matrix circuit, a sealing material formed over the driving circuit, and a filler included in the sealing material and in contact with the resin layer.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: January 6, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hongyong Zhang, Shunpei Yamazaki, Satoshi Teramoto, Yoshiharu Hirakata
  • Patent number: 7463313
    Abstract: A liquid crystal module includes: a first support part for receiving and affixing ends of a plurality of lamps; an optical plate disposed above an upper surface of the first support part; a second support part for retaining the optical plate and having a lower surface above the optical plate, wherein the upper surface of the first support part or the lower surface of the second support part has a recessed portion contacting the optical plate such that a gap is formed between the optical plate, and one of the upper surface of the first support part and the lower surface of the second support part.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: December 9, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Dong Im Huo
  • Patent number: 7456925
    Abstract: 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: Grant
    Filed: July 26, 2007
    Date of Patent: November 25, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Hong Jin Kim
  • Patent number: 7456923
    Abstract: A liquid crystal display device and a driving method thereof for reducing the number of data lines and the number of data drive integrated circuits corresponding thereto are disclosed. In the device, a plurality of gate lines is provided in a direction crossing a plurality of data lines. First and second control lines are provided in a direction being parallel to the gate lines. First liquid crystal cells are provided at one side on a basis of the data lines. Second liquid crystal cells are provided at other side on a basis of the data lines. A first switching part is provided for each first liquid crystal cell to apply video signals supplied from the data lines to the first liquid crystal cells under control of the first control line and the gate line. A second switching part is provided for each second liquid crystal cell to apply video signals supplied from the data lines to the second liquid crystal cells under control of the second control line and the gate line.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: November 25, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Woo Hyun Kim
  • Patent number: 7453532
    Abstract: The present invention provides a technique that is capable of preventing a separation of elements of the display panel of a slim display device in which the bending radius of a flexible printed circuit is small. A flexible printed circuit connects to a first side of the display panel proximate to an end surface of the display panel and is bent in the vicinity of the end surface, and a part of the flexible printed circuit is disposed between the back of a backlight and a holder. The holder has an opening or a depression in the vicinity of an end surface of the backlight corresponding to the end surface of the display panel. The flexible printed circuit has a portion which is deflected so that a portion thereof projects into a space in the opening or the depression in the holder, as viewed in section.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 18, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yasuaki Kondo, Tsutomu Sato, Kosuke Matsubara, Toshimitsu Matsudo
  • Patent number: 7450192
    Abstract: A display device includes a substrate, a gate line formed over the substrate, a first insulating film formed over the substrate and the gate line, a semiconductor film formed over the first insulating film, a drain electrode formed over the semiconductor film, a source electrode formed over the semiconductor film, a data line connected to the drain electrode and formed over the first insulating film, a second insulating film formed over the source electrode and the data line, a pixel electrode electrically connected to the source electrode and formed over the second insulating film, and a transparent conductive film connected to the data line through a contact hole formed in the second insulating film. The transparent conductive film includes a first portion which none of the first insulating film and the second insulating film underlie.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: November 11, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Kikuo Ono, Masahiro Tanaka, Yoshiaki Nakayoshi, Nobuyuki Suzuki
  • Patent number: 7446842
    Abstract: A liquid crystal display (LCD) panel including a liquid crystal panel, a first driving circuit, connected to the liquid crystal panel by a plurality of data lines, a second driving circuit, connected to the liquid crystal panel by a plurality of gate lines, an electrode pad unit applying a signal voltage aligning the liquid crystal filled in the liquid crystal panel, a first switching circuit, performing a switching operation to apply a part of the liquid crystal alignment signal voltage applied via the electrode pad unit to the liquid crystal panel via the data lines, a second switching circuit, performing a switching operation to apply a remaining part of the liquid crystal alignment signal voltage to the liquid crystal panel via the gate lines, and first and second buffer circuits, which prevent the liquid crystal alignment signal voltage from being applied backward to the first and second driving circuits.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: November 4, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ju-hyun Lee
  • Patent number: 7443474
    Abstract: The optical compensatory sheet has a transparent support and an optically anisotropic layer formed from liquid crystal molecules aligned in an average inclined angle of less than 5°. The optical compensatory sheet gives the retardation value in plane (Re) in the range of 10 to 1,000 nm and the retardation value along the thickness direction (Rth) in the range of 10 to 1,000 nm.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: October 28, 2008
    Assignee: Fujifilm Corporation
    Inventors: Yoji Ito, Ken Kawata
  • Patent number: 7440041
    Abstract: A method of forming an array substrate for use in a liquid crystal display device includes forming a gate line, a gate pad, and a gate electrode, forming a first gate insulating layer to cover the gate line, the gate pad, and the gate electrode, forming an active layer and an ohmic contact layer on the first gate insulating layer, forming a data line, a data pad, a source electrode, and a drain electrode, forming a second insulating layer to cover the thin film transistor, forming a black matrix on the second insulating layer to cover the thin film transistor, the gate line, and the data line except a first portion of the drain electrode, forming a third insulating layer to cover the black matrix, patterning the first, second, and third insulating layers, forming a first transparent electrode layer to cover the patterned third insulating layer, coating an adhesive color film on the first transparent electrode layer, irradiating a laser to portions of the adhesive color film corresponding to the pixel region,
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: October 21, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Youn-Gyoung Chang, Seung-Ryull Park
  • Patent number: 7433004
    Abstract: A color filter substrate includes: a base substrate; a light-shield layer and a color filter layer provided on the base substrate; a plurality of columnar spacers, which are made of a resin and provided so as to stick out of the base substrate; and an undercoat layer, which is provided between the columnar spacers and the base substrate. The color filter layer includes a first type of color filter, a second type of color filter and a third type of color filter, which transmit light rays in mutually different colors. The undercoat layer is made of the same film as one of the first, second and third types of color filters and the light-shield layer. A portion of the undercoat layer, associated with a first one of the columnar spacers, has a different area and/or shape from another portion of the undercoat layer, associated with a second one of the columnar spacers. The first and second columnar spacers have mutually different heights.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: October 7, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshihide Tsubata, Tsuyoshi Tokuda, Yuhko Hashimoto, Yoshinori Kinai, Masayuki Tsuji