Patents by Inventor Tsutomu Matsuhira

Tsutomu Matsuhira has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8289466
    Abstract: In a manufacturing method for a liquid crystal display device, a translucent first adhesive is placed between a first surface of a substrate and a display surface of a liquid crystal panel so that the first adhesive covers the entire surface of the liquid crystal panel. The first adhesive is cured to bond the substrate and the liquid crystal panel. The bonded substrate and liquid crystal panel are positionally aligned relative to a backlight unit. A second adhesive is placed between the substrate and the backlight unit so that the second adhesive surrounds an outer peripheral end portion of the liquid crystal panel. The first adhesive is cured to integrally bond the substrate, liquid crystal panel, and backlight unit to each other.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: October 16, 2012
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Tomoko Matsuhira, legal representative, Masayuki Ichino, Yoichi Kagaya, Isamu Hashizume
  • Patent number: 8289484
    Abstract: To prevent a reduction in load resistance of a liquid crystal panel which is caused along with a reduction in thickness thereof, tempered glass is entirely bonded to both of front and back surfaces or one of the surfaces of the liquid crystal panel using an optical adhesive, and an amount of warp by which the liquid crystal panel alone is broken due to a pressure is set equal to or larger than that in a case of the tempered glass.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: October 16, 2012
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Tomoko Matsuhira, legal representative
  • Patent number: 8026996
    Abstract: A display device includes a display panel having first and second opposing glass substrates forming a display surface, a transparent member, a first adhesive material bonding the transparent member to the entire display surface of the display panel, and a plate-like member disposed on a rear side of and supporting the display panel. A second adhesive material different from the first adhesive material is disposed between a rear surface of the transparent member and a front surface of the plate-like member so as to fixedly bond the transparent member and the plate-like member to one another.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: September 27, 2011
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Tomoko Matsuhira, legal representative, Masayuki Ichino, Isamu Hashizume, Yoichi Kagaya
  • Patent number: 7927440
    Abstract: Air bubbles or foreign objects in a transparent adhesive layer that bonds a transparent plate and a plate-like member together in full-surface contact are detected without fail. For the detection, an optical fiber or the like is used to irradiate the adhesive layer with light from a side, the cast light is guided through the adhesive layer, and a state of the adhesive layer is checked with the guided light. A check that discriminates defects in the adhesive layer from defects in the bonded transparent plate is thus made possible.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: April 19, 2011
    Assignee: Seiko Instruments Inc.
    Inventor: Tsutomu Matsuhira
  • Publication number: 20100296027
    Abstract: Glass plates for reinforcement are attached over an entire surface of a display region on a display surface side and its opposite side of a liquid crystal panel 30 to increase performance of a loading resistance to an impact from an outside or pressing force, whereby the liquid crystal panel 30 is allowed to be thin. Specifically, there is provided a display device including: the liquid crystal panel 30 which includes two transparent substrates sandwiching liquid crystals therebetween and an optical film placed on at least one of outer surfaces of the two transparent substrates; a first glass plate which is attached on a display surface side of the liquid crystal panel 30 through a first adhesive made of an optical adhesive or a translucent bonding sheet; and a second glass plate which is attached on a rear surface side of the liquid crystal panel 30 through a second adhesive made of the optical adhesive or the translucent bonding sheet.
    Type: Application
    Filed: October 16, 2007
    Publication date: November 25, 2010
    Inventors: Tsutomu Matsuhira, Teruo Ebihara, Mitsuyoshi Hara
  • Publication number: 20100014034
    Abstract: To prevent a reduction in load resistance of a liquid crystal panel which is caused along with a reduction in thickness thereof, tempered glass is entirely bonded to both of front and back surfaces or one of the surfaces of the liquid crystal panel using an optical adhesive, and an amount of warp by which the liquid crystal panel alone is broken due to a pressure is set equal to or larger than that in a case of the tempered glass.
    Type: Application
    Filed: January 30, 2008
    Publication date: January 21, 2010
    Inventor: Tsutomu Matsuhira
  • Publication number: 20090283211
    Abstract: Provided is a method of bonding a transparent plate or a touch panel to a flat display without allowing air bubbles to form. A fixed amount of liquid adhesive is applied in dots to a bonding surface around corners and at the center. More adhesive is applied to connect the dots of applied adhesive with lines. The bonding surface is then reversed, causing the adhesive to drip, and the dripping adhesive is brought into contact with an opposite bonding surface to fill a gap between the bonding surfaces with the adhesive. The adhesive is cured by irradiation with light incident from a transparent plate side. In short, after dots of adhesive are brought into contact with the opposite bonding surface and the adhesive flows into a pattern that does not let in air bubbles, the gap between the bonding surfaces is filled with the adhesive.
    Type: Application
    Filed: November 22, 2006
    Publication date: November 19, 2009
    Inventor: Tsutomu Matsuhira
  • Publication number: 20090185101
    Abstract: Provided are a liquid crystal display device and a manufacturing method for the liquid crystal display device, in which the liquid crystal display device is assembled to a cabinet of a portable apparatus with high accuracy, and strength of the liquid crystal display device against external force is enhanced. A manufacturing method for a liquid crystal display device (9), in which a liquid crystal panel (3) is fixed between a translucent front substrate (1) and a backlight unit (4), includes: a placement step of placing the liquid crystal panel (3) between the front substrate (1) and the backlight unit (4); a first positional alignment step of positionally aligning the front substrate (1) and the backlight unit (4) with each other; and a bonding step of bonding the front substrate (1), the backlight unit (4), and the liquid crystal panel (3) to one another by a first adhesive.
    Type: Application
    Filed: January 7, 2009
    Publication date: July 23, 2009
    Inventors: Tsutomu Matsuhira, Masayuki Ichino, Yoichi Kagaya, Isamu Hashizume
  • Publication number: 20090185276
    Abstract: Provided is a display device including a transparent board which forms a cover plate or the like on a display panel. In a case where an anti-reflection film is formed on a surface of the transparent board on a display viewing side thereof, a fingerprint, an oil film, and the like are liable to adhere thereto, and the soil due to the fingerprint and the oil film is noticeable on a surface of the anti-reflection film. Under the circumstances, on the surface of the transparent board on the display viewing side thereof, the anti-reflection film is formed, and a silicon oxide film for anti-soiling is formed on the anti-reflection film. With this structure, the fingerprint and the oil film are unlikely to adhere to the surface of the anti-reflection film, and are not noticeable even when adhering thereto.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 23, 2009
    Inventor: Tsutomu Matsuhira
  • Publication number: 20090183819
    Abstract: It is aimed to, in a manufacturing method for a display device including a translucent substrate bonded to a display panel using a translucent adhesive, realize a bright display screen free from an air layer formed between the display panel and the translucent substrate. For this purpose, a first adhesive layer made of a first adhesive is formed between a frame body and an exposed surface of an upper portion of the display panel, a second adhesive is next applied onto a surface of the translucent substrate, and the surface applied with the second adhesive is faced downward and is bonded to a top surface of the display panel including the first adhesive layer formed thereon, to thereby cure the second adhesive. Accordingly, the adhesive can be filled between the top surface of the display panel and a bottom surface of the translucent substrate without trapping bubbles or voids therebetween.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 23, 2009
    Inventor: Tsutomu Matsuhira
  • Publication number: 20090185100
    Abstract: To solve deterioration of an impact resistance caused in a thinned liquid crystal panel, a display device includes a display panel held between a transparent plate arranged on a display surface side and a plate-like member on a rear surface side in a sandwiched manner, and the transparent plate and the plate-like member are bonded and fixed to each other with an adhesive (16) in an outer periphery of the display panel.
    Type: Application
    Filed: October 23, 2008
    Publication date: July 23, 2009
    Inventors: Tsutomu Matsuhira, Masayuki Ichino, Isamu Hashizume, Yoichi Kagaya
  • Publication number: 20090162645
    Abstract: A display apparatus is provided in which a transparent cover plate or a touch panel is bonded to a liquid crystal display device in a full-surface contact manner and which is free from unevenness in displayed colors and peeling. The transparent cover plate or touch panel and the liquid crystal display device are bonded with an optical adhesive, which is set to a Shore A hardness of 1 or more to 30 or less. The thickness of the adhesive layer is set to 30 to 200 ?m.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 25, 2009
    Applicant: SEIKO INSTRUMENTS INC.
    Inventor: Tsutomu Matsuhira
  • Patent number: 7548219
    Abstract: A display device has a first color display panel having multi-color pixels formed of two groups of electrodes corresponding to signal electrodes and scanning electrodes. A second display panel has single-color pixels formed of two groups of electrodes corresponding to signal electrodes and scanning electrodes. The number of the signal electrodes of the second display panel are fewer in number than the signal electrodes of the first color display panel. A driver integrated circuit outputs driving signals shared commonly by and supplied to the signal and scanning electrodes of the first and second display panels. The driving signals output from the driver integrated circuit are supplied to the signal electrodes of the second display panel in only one color from among the colors of the multi-color pixels of the first display panel.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 16, 2009
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Hiroki Hanawa
  • Publication number: 20090038734
    Abstract: Air bubbles or foreign objects in a transparent adhesive layer that bonds a transparent plate and a plate-like member together in full-surface contact are detected without fail. For the detection, an optical fiber or the like is used to irradiate the adhesive layer with light from a side, the cast light is guided through the adhesive layer, and a state of the adhesive layer is checked with the guided light. A check that discriminates defects in the adhesive layer from defects in the bonded transparent plate is thus made possible.
    Type: Application
    Filed: November 28, 2006
    Publication date: February 12, 2009
    Inventor: Tsutomu Matsuhira
  • Publication number: 20090011197
    Abstract: Provided is an electronic device in which a display panel fixed by a metal bezel is entirely bonded to a touch panel or a transparent plate for protection with a liquid adhesive so that the liquid adhesive is prevented from permeating a gap between the metal bezel and the display panel. In other words, the display panel is adhered to the metal bezel by providing an adhesive or the like there between. The display device of the aforementioned structure is bonded to the touch panel or the transparent plate for protection by filling an entire surface of the gap there between with a liquid transparent adhesive. Further, the adhesive or the like is made to have conductivity, and a transparent conductive film is formed on a surface of the display panel, whereby the transparent conductive film is electrically connected to the metal bezel, which provides counter-measures against static electricity.
    Type: Application
    Filed: June 25, 2008
    Publication date: January 8, 2009
    Inventor: Tsutomu Matsuhira
  • Patent number: 7474274
    Abstract: A display device of the present invention switches between two displays, a main panel display and a sub-panel display, by using one driver IC. Liquid crystals having different optimal driver voltages are used in the main panel and the sub-panel, and the optimal driver voltage for the panel in which display is to be performed is output. A driver voltage that is higher or lower than the optimal driver voltage is applied to the display panel where display is not to be performed, and the entire display thereof displays a single color. Display content of the panel on which display is not to be performed cannot be identified.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: January 6, 2009
    Assignee: Seiko Instruments Inc.
    Inventors: Tsutomu Matsuhira, Hiroki Hanawa, Nobuyuki Sasaki, Hideaki Adachi
  • 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: 7303943
    Abstract: In a method of manufacturing an electric device, moisture in a film substrate is reduced by heating the film substrate at a temperature in the range of 80° C. to 100° C. Thereafter, an IC is mounted on the film substrate.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: December 4, 2007
    Assignees: Seiko Instruments Inc, Toray Advanced Film Co., Ltd., Maruwa Corporation
    Inventors: Tsutomu Matsuhira, Hideaki Adachi, Keiichiro Hayashi, Tadahiro Nishigawa, Nobukazu Koizumi
  • Patent number: 7283373
    Abstract: An electronic device comprises an IC provided with an array of pads a preselected number of which define inspection pads of the IC. A substrate has inspection patterns and is mounted on the IC so that each inspection pad is brought into contact with a corresponding inspection pattern to thereby enable electrical inspection of a mounting condition of the IC on the substrate. A pair of inspection lands is provided on the substrate and connected to some of the inspection patterns. The inspection pads and the inspection patterns are connected by wiring provided on the IC or on the substrate so that the inspection lands are electrically connected to each other when the IC is mounted on the substrate. A centerline of at least one of the inspection patterns is offset in position from a centerline of the corresponding inspection pad in width directions of the inspection pattern and the inspection pad.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: October 16, 2007
    Assignee: Seiko Instruments Inc.
    Inventor: Tsutomu Matsuhira
  • Publication number: 20060079026
    Abstract: A method of manufacture is provided in which position deviations during mounting are eliminated, and in which fine connections on the order of a 30 ?m pitch can be stabilized. A low cost device can thus be realized by cost reductions that accompany smaller ICs. Mounting is performed in a state where moisture in a polyimide film of a film substrate has been substantially dried, or mounting is performed after conditioning under a fixed environment. Further, patterning of the film substrate is performed after similar drying processing or conditioning.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 13, 2006
    Inventors: Tsutomu Matsuhira, Hideaki Adachi, Keiichiro Hayashi, Tadahiro Nishigawa, Nobukazu Koizumi