Patents Examined by David C. Nelms
  • Patent number: 7456917
    Abstract: A display panel includes a liquid crystal layer, an array substrate and a color filter substrate. The array substrate has a plurality of data lines, a plurality of gate lines and a plurality of pixel regions. The electrode for a storage capacitor is formed on each of the pixel regions. The color filter substrate is combined with the array substrate to receive the liquid crystal layer therebetween. The color filter substrate includes a first region where a color filter is formed and a second region where an opening is formed. The opening corresponds to the electrode for the storage capacitor. Thus, light reflected by the electrode for the storage capacitor exits the display panel through the opening, thereby enhancing an optical reflectivity of each pixel region.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: November 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-Nam Yun
  • Patent number: 7456915
    Abstract: The present invention relates to a liquid crystal display panel with improved image contrast comprising an array of pixel regions and a sequence of a recycling backlight structure comprising broadband rear interference polar (RI-Polar) having a transmission axis AB with preset orientation, a spatial intensity modulation structure comprising a broadband front interference polar (FI-Polar) having a transmission axis approximately parallel to the transmission axis AB, a spectral filtering structure, and antireflection means. Each said pixel region spatially encompasses a plurality of subpixel regions. The RI-Polar and FI-Polar are multilayer structures of stacked layers. At least one layer of each structure is optically anisotropic, made by means of Cascade Crystallization Process and characterized by a globally ordered biaxial crystalline structure with an intermolecular spacing of 3.4±0.3 ? in the direction approximately parallel to the transmission axis AB.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: November 25, 2008
    Assignee: Nitto Denko Corporation
    Inventors: Pavel I. Lazarev, Michael V. Paukshto
  • Patent number: 7453537
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Guk Kim, Won Seok Kang, Joo Soo Lim
  • Patent number: 7453528
    Abstract: There is provided a plasma display apparatus capable of reducing the cost and complexity of fitting circuit boards to a chassis base. The plasma display apparatus comprises a plasma display panel (PDP), a chassis base having a first side attached to the PDP, the first side also supporting the PDP, and circuit boards provided at a second side of the chassis base opposite to the first side attached to the PDP. The chassis base has at least one boss and at least one supporter disposed thereon, which correspond to holes disposed in a circuit board.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: November 18, 2008
    Assignee: Samsung Co., Ltd.
    Inventors: Guy-Seong Kim, Won-Kyu Bang
  • Patent number: 7453543
    Abstract: A display device has a first flexible substrate having a connection terminal and a driver integrated circuit for supplying driving signals. A second flexible substrate is connected to the connection terminal of the first flexible substrate. A pair of display panels are connected to the respective first and second flexible substrates for sharing driving signals supplied by the driver integrated circuit to drive the display panels.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: November 18, 2008
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Hiroki Hanawa
  • Patent number: 7453531
    Abstract: There is disclosed a liquid crystal display device that is adaptive for preventing the driving device defect of a driving circuit part and a method of fabricating the same. A liquid crystal display device according to an embodiment of the present invention includes a driving device of a structure that a plurality of thin film transistor having a channel of poly silicon are connected in parallel, in a driving circuit, and wherein at least one of widths of the channels and distances between the adjacent channels is different in accordance with their location.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Seok Woo Lee
  • Patent number: 7453542
    Abstract: The present invention is directed to the provision of a display apparatus that can achieve an improvement in display quality by adjusting the wiring resistance ratio of wiring lines.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: November 18, 2008
    Assignee: Citizen Holdings Co., Ltd.
    Inventors: Kazutoshi Muramatsu, Takeru Yoshino, Katsuyuki Tanaka
  • Patent number: 7453535
    Abstract: A liquid crystal device includes a first substrate, a second substrate arranged oppositely to the first substrate, and a liquid crystal layer sandwiched between the first and second substrates. Preferably, the first substrate includes a gate wiring, a gate terminal part formed at an end of the first substrate and provided with a gate terminal to which a signal to the gate wiring is inputted, a source wiring intersecting with the gate wiring through an insulating film, a switching element connected to the source wiring, a pixel electrode connected to the source wiring through the switching element, and a common electrode arranged oppositely to the pixel electrode. Preferably, the second substrate includes a light shielding film formed on the side of the first substrate and arranged at a position corresponding to the gate wiring, and a cutting where the light shielding film is cut in a pixel near the gate terminal part.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: November 18, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Akinori Sumi
  • Patent number: 7453530
    Abstract: A liquid crystal display device includes a thin film transistor formed on a substrate, the thin film transistor including a gate electrode; a gate insulation film formed on the gate electrode and the substrate; and a storage capacitor connected to the drain electrode, the storage capacitor being above the gate insulation film.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Sang Yoon Paik, Joon Youp Lee
  • Patent number: 7450205
    Abstract: A liquid crystal display device includes a liquid crystal cell, polarizers, a first retardation plate arranged between the liquid crystal cell and the first polarizer, and a second retardation plate arranged between the liquid crystal cell and the second polarizer. Each retardation plate has an optical axis in a plane parallel to the substrate surface and a retardation of substantially ?/4. The optical axis of one retardation plate is perpendicular to the optical axis of the other. The polarizing axes of the polarizers are arranged at an angle of 45° with respect to the optical axes of the retardation plates. The liquid crystal cell is arranged such that a state of alignment of liquid crystal molecules changes, accompanying a change in a polar angle and/or change in an azimuth, upon application of a voltage.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: November 11, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidefumi Yoshida, Kenji Okamoto, Hideo Chida, Kazutaka Hanaoka, Seiji Tanuma, Yohei Nakanishi
  • Patent number: 7450202
    Abstract: A liquid crystal display device includes an element substrate; a counter substrate opposite to the element substrate; a liquid crystal layer that is formed between the element substrate and the counter substrate; and dot sections each having a transmissive display section for performing transmissive display and a reflective display section for performing reflective display. The element substrate includes switching elements, an insulating film formed on the switching elements, and pixel electrodes formed on the insulating film. The switching elements are electrically connected to the pixel electrodes through contact holes that are formed in the insulating film. Each of the pixel electrodes has a transparent electrode portion for the transmissive display and a reflective electrode portion for the reflective display. The switching element is arranged below the reflective electrode portion of a second dot section adjacent to a first dot section that is driven by the switching element.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: November 11, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Hitoshi Tsuchiya
  • Patent number: 7450211
    Abstract: A liquid crystal display device is disclosed that is capable of suppressing disorder of alignment of liquid crystal molecules caused by a spacer arranged between two TFT substrates. In liquid crystal display device, the spacer arranged between the two TFT substrates is capable of aligning liquid crystal molecules near the spacer along a specified direction.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: November 11, 2008
    Assignees: Fujitsu Limited, Au Optronics Corporation
    Inventors: Arihiro Takeda, Takahiro Sasaki, Manabu Sawasaki
  • Patent number: 7450193
    Abstract: There is provided a LCOS panel assembly of a projection system comprising: a LCOS panel; a panel support supporting the LCOS panel and coupled to the quad side; a quarter-wave plate provided at the front side of the LCOS panel to polarize light; a quarter-wave plate holder rotatably supported about the panel support at a state where the quarter-wave plate is coupled thereto; and adhesives interposed on a contact surface of the quarter-wave plate holder and the panel support, so that foreign substance is prevented from being injected on a optical path of the LCOS panel assembly of the projection system or image matching is prevented from being deteriorated.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 11, 2008
    Assignee: LG Electronics Inc.
    Inventors: Ju Wan Seok, Sung ok Cheun, Moung Youb Lee
  • Patent number: 7450204
    Abstract: A liquid crystal display having a positive A-film and a negative A-film between a top polarizer and a bottom polarizer to increase the viewing angle of the liquid crystal display by reducing or eliminating light leakage at voltage-off state when viewed from an oblique angle. Method of increasing the viewing angle of the liquid crystal display by reducing or eliminating light leakage at voltage-off stage when viewed from an oblique angle. The compensation is applicable to use with liquid crystal displays having a liquid crystal layer that is homogenously aligned at off-state when no voltage is applied to the liquid crystal layer, such as IPS and FFS mode liquid crystal displays.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: November 11, 2008
    Assignees: University of Central Florida Research Foundation, Inc., Toppoly Optoelectronics Corp.
    Inventors: Xinyu Zhu, Shin-Tson Wu
  • Patent number: 7450207
    Abstract: A first electrode 14 provided in a liquid crystal display device of a vertical alignment mode includes, for each picture element region, a lower conductive layer 11, a dielectric layer 12 covering the lower conductive layer 11, and an upper conductive layer 13 provided on one side of the dielectric layer 12 which is closer to a liquid crystal layer 30. The upper conductive layer 13 includes an upper layer opening 13a, and the lower conductive layer 11 includes a lower layer opening 11a, thus forming first, second and third regions (R1, R2, R3) having gradually decreasing electric field strengths. Liquid crystal molecules 30a of the liquid crystal layer 30 in an orientation-regulating region T1 in which the first, second and third regions are arranged in this order in a predetermined direction change the orientation direction thereof so that they are inclined in a single direction in the presence of an applied voltage.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: November 11, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Fumikazu Shimoshikiryo
  • Patent number: 7450212
    Abstract: The invention relates to a substrate for a liquid crystal display used as a display portion of an electronic apparatus and a liquid crystal display having the same and provides a substrate for a liquid crystal display which allows high display quality to be achieved and a liquid crystal display having the same. The substrate has a TFT substrate and a CF substrate provided opposite to each other, pillar spacers formed on the CF substrate to maintain a cell gap between the substrates, a region ? which is located in the neighborhood of the center of a display area and in which the pillar spacers are compressed in a first amount of compressive displacement when a predetermined pressure in a direction perpendicular to a substrate surface is applied, and a region ? which is located in the neighborhood of a picture-frame area outside the above region ? and in which the pillar spacers are compressed in a second amount of compressive displacement greater than the first amount of compressive displacement.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: November 11, 2008
    Assignees: Fujitsu Limited, AU Optronics Corporation
    Inventors: Manabu Sawasaki, Tetsuya Fujikawa
  • Patent number: 7446836
    Abstract: A transflective liquid crystal display device includes a first substrate including first electrodes; a second substrate including second electrodes; a liquid crystal material interposed between the first and second substrates; and a display region including a plurality of pixels each having a reflective region and a transmissive region. The reflective and transmissive regions are arranged in strip shapes lying across pixel rows. The first substrate includes a layer-thickness adjusting layer adjusting retardation in the reflective and transmissive regions. The layer-thickness adjusting layer includes thick portions arranged in the reflective regions; thin portions arranged in the transmissive regions; step portions formed in the display region at boundaries between the thick and thin portions such that inclined planes are formed in a vertical direction; and relieving portions formed outboard the display region to reduce a step difference between the thick and thin portions.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: November 4, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Takeshi Kurashima
  • Patent number: 7446824
    Abstract: A liquid crystal display device includes a first substrate and a second substrate which are arranged to face each other in an opposed manner by way of a liquid crystal, first electrodes which are formed in a pixel region of a liquid-crystal-side surface of a liquid crystal display part of the first substrate, and second electrodes which are formed in a pixel region of a liquid-crystal-side surface of a liquid crystal display part of the second substrate. The liquid crystal display device further includes an arrangement which, with respect to a voltage applied between the first electrodes and the second electrodes formed per one or a plurality of frames, sequentially applies the voltage which is equal to or less than 20% of the maximum voltage between the first and second electrodes of respective pixel regions.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: November 4, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Setsuo Kobayashi, Kazuhiko Yanagawa
  • Patent number: 7446832
    Abstract: An electro-optical device includes a substrate that supports an electro-optical material; a plurality of display dot regions; and a light-shielding film that is provided among the plurality of display dot regions on the substrate and that is formed by laminating a plurality of colored layers. In the electro-optical device, one of the plurality of colored layers is formed such that both ends thereof in a widthwise direction protrude from edges of the other colored layers.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: November 4, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Tomoyuki Nakano, Keiji Takizawa, Kimitaka Kamijo, Tatsuya Kato
  • Patent number: 7443477
    Abstract: An in-plane switching liquid crystal display, especially relative to an in-plane switching liquid crystal display with the absence of an overcoat layer is provided. The in-plane switching liquid crystal display having a first substrate, a second substrate and a liquid crystal layer sandwiched therebetween, a plurality of gate lines and data lines disposed on the first substrate, a counter electrode disposed on the second substrate and corresponding to one of the data lines, a pixel having a pixel electrode, a pair of shielding electrodes and a common electrode also disposed on the first substrate. Through the arrangement of shielding electrodes as well as the counter electrode, the coupling effect of the applied pixel voltage on the data lines is shielded.
    Type: Grant
    Filed: September 6, 2005
    Date of Patent: October 28, 2008
    Assignee: Hannstar Display Corporation
    Inventors: Jiunn-Shyong Lin, Po-Sheng Shih, Kei-Hsiung Yang, Tai-Shun Liao