Patents Assigned to Display Technologies
  • Patent number: 6856374
    Abstract: It is an object of the invention to provide a display and a method for repairing defects of the same in which defects such as inter-layer short-circuits and short-circuits in a single that have occurred at steps for manufacturing the display can be easily repaired to provide a good product with a probability higher than that in the related art. Laser irradiation is carried out as a first cycle of laser irradiation by forming a slit S1 in a region where a drain bus line 220 completely covers a gate bus line 218 to form a cut portion longer than the width of the gate bus line 218 adjacent to an inter-layer short-circuit 290 such that it splits an intersecting portion of the drain bus line 220 into two parts as shown in FIG. 5b. Next, as shown in FIG. 5c, slits S2 and S3 are respectively used for second and third cycles of laser irradiation to cut the drain bus line 220 at both ends of the cut portion (indicated by S1), thereby isolating the inter-layer short-circuit 290 of the drain bus line 220.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: February 15, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Kiyoshi Ozaki, Tsuyoshi Kamada, Kunio Matsubara, Shinya Katoh, Yoshihisa Taguchi, Katsushige Asada, Shogo Hayashi
  • Patent number: 6856373
    Abstract: A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: February 15, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Satoshi Sekido, Takae Ito, Shinpei Nagatani, Hidefumi Yoshida, Takashi Sasabayashi, Koichi Katagawa, Katsuhiko Kishida, Mikio Oshiro, Katsunori Tanaka, Toshimitsu Minemura, Katsuyoshi Hiraki, Yuichi Inoue
  • Publication number: 20050030445
    Abstract: When radiating light onto a liquid crystal composition containing a photosensitive material, the alignment of liquid crystal molecules is adjusted by applying a voltage to the liquid crystal composition layer, to achieve substantially orderly alignment of the liquid crystal molecules, or the alignment of the liquid crystal molecules is made uniform by adjusting the structure of the liquid crystal display device, or any display defect is driven out of the display area. When radiating light to the liquid crystal composition containing the photosensitive material, the alignment of the liquid crystal molecules can be adjusted so as to achieve substantially orderly alignment of the liquid crystal molecules, and the liquid crystal display device can thus be driven stably.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 10, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Hiroyasu Inoue, Kenichi Nagaoka, Yuji Nakahata, Yoji Taniguchi
  • Publication number: 20050030469
    Abstract: A liquid crystal display device has a liquid crystal inserted between first and second substrates and surrounded by a peripheral seal. The liquid crystal is dripped onto the first substrate in an area defined by the seal of the first substrate. The first substrate and the second substrate are joined or bonded together under pressure in a vacuum chamber. The chamber is then exposed to the atmosphere while keeping the first substrate and the second substrate under pressure. The pressure is then released and thereafter light is irradiated onto the peripheral seal. The vacuum chamber includes upper and lower surface plates to support the substrates. The surface plate includes an electrostatic chuck and a vacuum attraction passage provided in the chuck.
    Type: Application
    Filed: September 17, 2004
    Publication date: February 10, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Satoshi Murata, Hiroyuki Sugimura, Norimichi Nakayama
  • Patent number: 6853364
    Abstract: A liquid crystal display device includes a display circuit having data lines and scanning lines arranged in two-dimensional matrix, and switching elements connected between the data lines and the scanning lines. A first inspection circuit is also provided, including an inspection voltage input and/or output terminal for inputting and/or outputting an inspection voltage to/from one ends of the data lines via a first analog switch. A second inspection circuit includes an inspection voltage input and/or output terminal for inputting and/or outputting an inspection voltage to/from the other ends of the data lines. The display circuit, the first inspection circuit, and the second inspection circuit are provided on one substrate, and the first inspection circuit is constructed to be separated from the rest of the display circuit.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: February 8, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Tsutomu Kai, Susumu Okazaki, Hongyong Zhang, Noriyuki Ohashi
  • Publication number: 20050024556
    Abstract: When radiating light onto a liquid crystal composition containing a photosensitive material, the alignment of liquid crystal molecules is adjusted by applying a voltage to the liquid crystal composition layer, to achieve substantially orderly alignment of the liquid crystal molecules, or the alignment of the liquid crystal molecules is made uniform by adjusting the structure of the liquid crystal display device, or any display defect is driven out of the display area. When radiating light to the liquid crystal composition containing the photosensitive material, the alignment of the liquid crystal molecules can be adjusted so as to achieve substantially orderly alignment of the liquid crystal molecules, and the liquid crystal display device can thus be driven stably.
    Type: Application
    Filed: July 16, 2004
    Publication date: February 3, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Yuji Nakahata, Yoji Taniguchi, Tetsuya Fujikawa
  • Publication number: 20050023959
    Abstract: A flat panel field emission device includes a black matrix formed from an electrically insulative material such as praseodymium-manganese oxide. The insulative black matrix increases image contrast and reduces power consumption. For field emission devices which utilize a switched anode for selectively activating pixels, the insulative material reduces or eliminates problems associated with short circuiting of the pixels.
    Type: Application
    Filed: September 7, 2004
    Publication date: February 3, 2005
    Applicant: Micron Display Technology, Inc.
    Inventor: Robert Rasmussen
  • Publication number: 20050024567
    Abstract: A liquid crystal display device capable of obtaining high luminance and good display characteristics, a substrate for such a liquid crystal display device, and a manufacturing method of such a substrate, are provided. A color filter substrate holds, together with an array substrate, a liquid crystal having negative dielectric anisotropy. Color filters are formed on a glass substrate and a common electrode is formed on the color filters. Protrusions and auxiliary protrusions for regulating the alignment of the liquid crystal are formed on the common electrode so as to have different sectional shapes.
    Type: Application
    Filed: August 27, 2004
    Publication date: February 3, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Manabu Sawasaki, Takashi Takagi, Tomonori Tanose
  • Patent number: 6850003
    Abstract: Provided is a method of fabricating an organic light-emitting device; which method comprises the steps of: forming a first electrode (4) for the device over a substrate (2); either forming by self-assembly at least one polymer layer (6, 8) over the first electrode (4) and forming other than by self-assembly at least one layer of organic light emissive material (10) over the at least one polymer layer (6, 8); and forming a second electrode (12) for the device over the at least one layer of organic light emissive material (10); or forming other than by self-assembly at least one layer of organic light emissive material over the first electrode and forming by self-assembly at least one polymer layer over the at least one layer of organic light emissive material; and forming a second electrode for the device over the at least one polymer layer. Also provided is an organic light emitting device, obtainable according to the method of the present invention.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: February 1, 2005
    Assignee: Cambridge Display Technology, Ltd.
    Inventors: Karl Pichler, Jeremy Burroughes, Peter Ho, Chris Bright, Richard Henry Friend, Neil Clement Greenham
  • Publication number: 20050018119
    Abstract: In a vertically aligned liquid crystal display device for controlling liquid crystal molecules alignment in voltage application by providing linear structures or linear slits consisting of a plurality of constituent units to at least one of a pair of substrates having an electrode thereon, there is provided alignment controlling means for forming an alignment singular point s=?1 of liquid crystal molecules at an intersecting point between the structures on the pixel electrode or the slits in the electrode and an edge of a pixel electrode on one of the substrates.
    Type: Application
    Filed: August 20, 2004
    Publication date: January 27, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Arihiro Takeda, Yoshio Koike, Takahiro Sasaki, Kouji Tsukao, Shingo Kataoka, Kimiaki Nakamura, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Hidefumi Yoshida, Yasutoshi Tasaka, Takashi Sasabayashi, Yohei Nakanishi
  • Publication number: 20050017318
    Abstract: A circuit array substrate is provided with thin-film transistors 4 and 5 and PIN diode 6 formed on insulation substrate 3. Active layer 11 and photo-electric sensor portion 21 are made of poly-silicon films. Impurities are doped into active layer 11 and photo-electric sensor portion 21 in the same process chamber, if necessary, to make their impurity concentrations different from each other. Thin-film transistors 4 and 5 with prescribed characteristics and PIN diode 6 with improved photosensitivity can be simultaneously, easily manufactured on insulation substrate 3 with a lesser number of processes.
    Type: Application
    Filed: July 12, 2004
    Publication date: January 27, 2005
    Applicant: Toshiba Matsushita Display Technology Co., Ltd
    Inventors: Arichika Ishida, Masayoshi Fuchi, Yuki Matsuura, Norio Tada
  • Publication number: 20050018105
    Abstract: When radiating light onto a liquid crystal composition containing a photosensitive material, the alignment of liquid crystal molecules is adjusted by applying a voltage to the liquid crystal composition layer, to achieve substantially orderly alignment of the liquid crystal molecules, or the alignment of the liquid crystal molecules is made uniform by adjusting the structure of the liquid crystal display device, or any display defect is driven out of the display area. When radiating light to the liquid crystal composition containing the photosensitive material, the alignment of the liquid crystal molecules can be adjusted so as to achieve substantially orderly alignment of the liquid crystal molecules, and the liquid crystal display device can thus be driven stably.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 27, 2005
    Applicant: FUJITSU DISPLAY TECHNOLOGIES CORPORATION
    Inventors: Hiroyasu Inoue, Yuji Nakahata, Yoji Taniguchi
  • Patent number: 6847422
    Abstract: A liquid crystal display device manufacturing method, including the steps of forming first-layer metal patterns in a display portion and a peripheral circuit portion of a first substrate; forming a first insulating film on the first-layer metal patterns; forming second-layer metal patterns on the first insulating film; and forming a color resin film on the second-layer metal patterns. The method also including the steps of patterning the color resin film to form color filters made of the color resin film in a pixel region of the display portion and to leave the color resin film in the peripheral circuit portion and forming a third-layer metal pattern on the color resin film in the peripheral circuit portion.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 25, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Hongyong Zhang, Seii Sato
  • Patent number: 6847424
    Abstract: A liquid-crystal display includes a reflective liquid-crystal panel, a light guiding plate disposed on the reflective liquid-crystal panel, a polarizer arranged between a liquid-crystal layer of the reflective liquid-crystal panel and the light guiding plate, and a light source disposed on a side surface of the light guiding plate. Light emitted from the light source propagates through the light guiding plate and has a primary direction. A smaller one of two angles between a projection of the primary direction onto the reflective liquid-crystal panel and an absorption axis of the light guiding plate is at least 50°. This resultantly improves performance of the liquid-crystal display.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: January 25, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventors: Takeshi Gotoh, Tetsuya Hamada, Tetsuya Kobayashi, Keiji Hayashi, Toshihiro Suzuki
  • Patent number: 6843697
    Abstract: A flat panel field emission device includes a black matrix formed from an electrically insulative material such as praseodymium-manganese oxide. The insulative black matrix increases image contrast and reduces power consumption. For field emission devices which utilize a switched anode for selectively activating pixels, the insulative material reduces or eliminates problems associated with short circuiting of the pixels.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: January 18, 2005
    Assignee: Micron Display Technology, Inc.
    Inventor: Robert T. Rasmussen
  • Publication number: 20050007307
    Abstract: Buffer circuits are provided between outputs of a scanning line driver circuit and scanning lines. The buffer circuits each are configured to make rise or fall time of scanning signals at output sides of the buffer circuits substantially the same as or longer than those of the scanning signals at end terminals of the scanning lines when the scanning signals supplied to the scanning lines are rectangular in waveform.
    Type: Application
    Filed: May 17, 2004
    Publication date: January 13, 2005
    Applicant: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Yoshiro Aoki
  • Publication number: 20050007540
    Abstract: A liquid crystal display device includes a liquid crystal display cell including lamination of a lower polarizer, a first glass substrate having a metal oxide glass film formed on the side of the lower polarizer, a liquid crystal layer, a second glass substrate having a metal oxide glass film formed on the side opposite the liquid crystal layer, and an upper polarizer; and a backlight unit including a light guide plate, a diffusion plate, and light sources. The metal oxide glass films are a transparent film made of an organic/inorganic hybrid material. The films are formed by coating a solution of a metal alkoxide composition on individual outer surfaces of the first glass substrate and the second glass substrate, both of which have been roughened by a polishing process, and by hydrolyzing and curing the metal alkoxide composition.
    Type: Application
    Filed: June 8, 2004
    Publication date: January 13, 2005
    Applicants: International Business Machines Corporation, International Display Technology Co., Ltd.
    Inventors: Kenji Tsuboi, Hideo Ohkuma, Tomohito Johnai
  • Patent number: 6842214
    Abstract: There are contained a peripheral circuit portion B having first metal patterns formed on a first substrate, a first insulating film formed on the first metal patterns, a second metal pattern formed on the first insulating film, a second insulating film formed on the second metal pattern to have at least a first resin film, and third metal patterns formed on the second insulating film, and a display portion A having an active element formed on the first substrate and covered with the second insulating film and a second resin film, and a pixel electrode formed in a pixel region on the second insulating film and connected electrically to the active element via a hole that is formed in the second insulating film. Accordingly, the liquid crystal display device that has the display portion A and the peripheral circuit portion B is capable of reducing the capacitance between wirings and improving the throughput.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: January 11, 2005
    Assignee: Fujitsu Display Technologies Corporation
    Inventor: Hongyong Zhang
  • Publication number: 20050001804
    Abstract: A display device, comprising: signal lines and scanning lines arranged vertically and horizontally on an insulating substrate; display elements formed in vicinity of the signal lines and the scanning lines on said insulating substrate; a signal line drive circuit which drives the signal lines; and a scanning line drive circuit which drives the scanning lines, wherein said signal line drive circuit includes: a display data storage implemented on said insulating substrate, which stores ordinary display data supplied from outside; and a signal driver formed of polysilicon process on said insulating substrate, which drives the signal lines based on the ordinary display data stored in said display data storage.
    Type: Application
    Filed: June 18, 2004
    Publication date: January 6, 2005
    Applicant: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Tomonobu Motai
  • Publication number: 20050001973
    Abstract: The invention relates to a liquid crystal display in which a polymeric component included in a liquid crystal layer is polymerized while adjusting a voltage applied to the liquid crystal layer to regulate the direction of alignment of liquid crystal molecules during polymerization and a method of manufacturing the same. The invention provides a liquid crystal display in which image sticking is mitigated and a method of manufacturing the same. In a method of manufacturing a liquid crystal display in which a liquid crystal composition including a polymeric component that is optically or thermally polymerized is sealed between substrates and in which the polymeric component is polymerized while applying a voltage to the liquid crystal composition to regulate the direction of alignment of liquid crystal molecules during driving, a configuration is employed such that a polymerization initiator in the liquid crystal composition has a concentration x that satisfies 0?x?0.
    Type: Application
    Filed: July 15, 2004
    Publication date: January 6, 2005
    Applicant: Fujitsu Display Technologies Corporation
    Inventors: Yohei Nakanishi, Hiroyasu Inoue, Yuji Nakahata, Kengo Kanii, Kazutaka Hanaoka, Masakazu Shibasaki, Yuichi Inoue