Patents by Inventor Takeshi Ookawara

Takeshi Ookawara 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).

  • Publication number: 20140340360
    Abstract: A display device with a touch panel includes the touch panel having a first substrate having a detection area to detect a coordinate and an outside area in which at least one external terminal is formed, a plurality of first lines to detect the coordinate in the detection area, a plurality of second lines to detect the coordinate in the detection area, wherein each of the plurality of first lines traverse each of the plurality of second lines. An organic emitting display panel is arranged under the touch panel, and a circular polarizing plate arranged at a side of the touch panel opposite to the organic emitting display panel. The organic emitting display panel, the touch panel, and the circular polarizing plate are arranged in this order.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 20, 2014
    Inventors: Takeshi Ookawara, Noriharu Matsudate
  • Publication number: 20140291649
    Abstract: An OLED display panel is provided which can control the problem of shedding even in high definition panels. Metal wiring 5 which conducts with an earth line of a flexible printed substrate 15 is provided on a substrate 1. A display area 2 comprised from a plurality of OLED elements is provided at the center of the substrate 1 and four low resistance metal films 3 are provided along each of four edges of the display area 2 on a surface of insulation films 8, 10 at the periphery of the display area 2. Among these, one low resistance metal film 3 conducts with the metal wiring 5 via a contact 3a.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Japan Display Inc.
    Inventors: Kouhei TAKAHASHI, Hirotsugu SAKAMOTO, Takeshi OOKAWARA, Toshihiro SATO
  • Patent number: 8803836
    Abstract: A display device with a touch panel which includes a first substrate, and a second substrate facing the first substrate. The first and second substrates each include a detection area to detect a coordinate and an outside area which includes external terminals. The first substrate includes first lines to detect a coordinate, and the second substrate includes second lines, made of metal, in the detection area which face the first substrate. A polarizing plate is arranged on the first substrate at a side opposite to the second substrate.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: August 12, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takeshi Ookawara, Noriharu Matsudate
  • Publication number: 20140203260
    Abstract: A display device includes contact holes opened in an insulating film outside of a display area in which pixels are arranged, and having a conductive film exposed in bottom portions, a first metal film formed to cover the contact holes and come in contact with the conductive film of the bottom portions, and a transparent conductive film formed on the first metal film.
    Type: Application
    Filed: January 23, 2014
    Publication date: July 24, 2014
    Applicant: Japan Display Inc.
    Inventors: Takeshi OOKAWARA, Toshihiro SATO, Hiroshi OOOKA, Kouhei TAKAHASHI
  • Publication number: 20140175412
    Abstract: A method of manufacturing an organic electroluminescent display device includes the steps of: forming transistors on an element substrate; and forming organic electroluminescent light emitting elements on the respective transistors, in which the step of forming the organic electroluminescent light emitting elements includes the steps of: forming anodes in correspondence with pixels; forming a polymer organic layer made of a polymer material by attaching the polymer material onto upper surfaces and end surfaces of the anodes; forming an organic layer having at least a light emitting layer on the polymer organic layer; and forming a cathode on the organic layer.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 26, 2014
    Applicant: Japan Display Inc.
    Inventors: Hiroshi OOOKA, Yuuko MATSUMOTO, Takeshi OOKAWARA, Kohei TAKAHASHI, Hirotsugu SAKAMOTO
  • Publication number: 20130328815
    Abstract: A display device with a touch panel which includes a first substrate, and a second substrate facing the first substrate. The first and second substrates each include a detection area to detect a coordinate and an outside area which includes external terminals. The first substrate includes first lines to detect a coordinate, and the second substrate includes second lines, made of metal, in the detection area which face the first substrate. A polarizing plate is arranged on the first substrate at a side opposite to the second substrate.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicants: Panasonic Liquid Crystal Display Co., Ltd., Japan Display Inc.
    Inventors: Takeshi Ookawara, Noriharu Matsudate
  • Patent number: 8519969
    Abstract: The present invention provides a display device with a touch panel which gives a user excellent touch feeling. A display device with a touch panel includes: a touch panel which includes a first substrate, a second substrate arranged to face the first substrate in an opposed manner with a gap formed therebetween, a first electrode which is constituted of a plurality of metal lines formed on a surface of the first substrate which faces the second substrate, and a second electrode formed on a surface of the second substrate which faces the first substrate; a display panel which is mounted on the second substrate on a side opposite to the first substrate; and a resin film which is adhered to the first substrate on a side opposite to the second substrate.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: August 27, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takeshi Ookawara, Noriharu Matsudate
  • Patent number: 8441186
    Abstract: An organic electroluminescence display device is disclosed wherein plural organic electroluminescence elements each having an anode, a cathode and an organic layer sandwiched in between the anode and the cathode, the plural organic electroluminescence elements including organic electroluminescence elements developing different colors in a row direction, and at least one of the organic layers having an outer edge of a conic section at an end portion in a column direction thereof, the outer edge of the conic section becoming narrower gradually in its width in a row direction of vapor deposition thereof toward an extreme end at an end portion in a column direction thereof. The organic electroluminescence display device can improve the vapor deposition accuracy and the degree of design freedom.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: May 14, 2013
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Noriharu Matsudate, Takeshi Ookawara, Kenta Kajiyama
  • Patent number: 8404125
    Abstract: In a metal processing method, a photoresist liquid is applied to both surfaces of a metal plate (210) to form photoresist films (220, 230), respectively (Step S102). Subsequently, the photoresist films (220, 230) are exposed and developed so that the photoresist films (220, 230) is removed while leaving the photoresist films (220, 230) corresponding to portions in which a hole is to be formed (Step S103). Next, metal thin films (240, 250) are formed on both the surfaces of the metal plate (210), respectively, on which the photoresist films (220, 230) are formed (Step S104). Subsequently, the photoresist films (220, 230) are removed, and metal thin films (245, 255) are also removed, which are formed on the photoresist films (220, 230), respectively (Step S105). Finally, the metal plate (210) is immersed in an etchant to be etched, to thereby form a high-precision hole in the metal plate (210) (Step S106).
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: March 26, 2013
    Assignees: Hitachi Displays, Ltd., Canon Kabushiki Kaisha
    Inventors: Noriharu Matsudate, Takeshi Ookawara
  • Publication number: 20120060756
    Abstract: In a mask an for organic electroluminescence device having an open hole portion of a stripe pattern, the width W of the open hole portion and the distance L from an end of the open hole portion satisfy the relational expression of ½W?L?20W, and the sectional shape of the open hole portion is smaller in a region extending by the distance L from the end of the open hole portion than in the other region.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 15, 2012
    Inventors: Takeshi OOKAWARA, Noriharu Matsudate, Toshiyuki Kurogi
  • Patent number: 8076843
    Abstract: An organic electroluminescence display device wherein the wiring width is made large enough to secure a current capacity for the power supply line and at the same time high luminance is achieved by increasing the aperture rate is to be realized. The device has lower electrodes formed over the main face of a transparent substrate, a plurality of organic electroluminescence elements each stacked over one or another of the lower electrodes and emitting light of a prescribed color, and an upper electrode formed as a film covering the plurality of organic electroluminescence layers in common, and this upper electrode is reflective and the luminescence from the organic electroluminescence elements is emitted from the transparent substrate side.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: December 13, 2011
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hirotsugu Sakamoto, Hiroshi Oooka, Takeshi Ookawara
  • Patent number: 8053976
    Abstract: The present invention aims at the suppression of chromaticity irregularities and brightness irregularities by reflecting a result of an analysis of film forming misalignment of an organic EL layer. For this end, a drive circuit chip 6 is mounted on a lower side of a display panel 4, and a terminal portion 7 for connection with an external device (a host device) is mounted on an end edge of the lower side of a display panel 4. Film forming misalignment vectors (indicated by arrows) of sub pixels at an arbitrary point in a display region 5 fall within a first quadrant and an angle made between the vectors falls within 90°.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: November 8, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Noriharu Matsudate, Takeshi Ookawara
  • Patent number: 7915814
    Abstract: A top-emission-type organic EL display device which exhibits uniform screen brightness is realized by preventing a voltage drop of an upper electrode formed of a transparent conductive film. Pixels each of which is sandwiched between an upper electrode and a lower electrode are arranged in a matrix array to form a display region. An auxiliary electrode extends in the lateral direction between the pixels and the pixels for preventing a voltage drop of the upper electrode. A current supply line which supplies an electric current to the upper electrode and the auxiliary electrodes are made conductive with each other by forming a through hole in an insulation layer. To ensure reliability of connection at the through hole, a contact electrode made of metal which overlaps with the auxiliary electrode is formed on the through hole by vapor deposition.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: March 29, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Noriharu Matsudate, Takeshi Ookawara
  • Publication number: 20110027461
    Abstract: In a metal processing method, a photoresist liquid is applied to both surfaces of a metal plate (210) to form photoresist films (220, 230), respectively (Step S102). Subsequently, the photoresist films (220, 230) are exposed and developed so that the photoresist films (220, 230) is removed while leaving the photoresist films (220, 230) corresponding to portions in which a hole is to be formed (Step S103). Next, metal thin films (240, 250) are formed on both the surfaces of the metal plate (210), respectively, on which the photoresist films (220, 230) are formed (Step S104). Subsequently, the photoresist films (220, 230) are removed, and metal thin films (245, 255) are also removed, which are formed on the photoresist films (220, 230), respectively (Step S105). Finally, the metal plate (210) is immersed in an etchant to be etched, to thereby form a high-precision hole in the metal plate (210) (Step S106).
    Type: Application
    Filed: July 27, 2010
    Publication date: February 3, 2011
    Inventors: Noriharu MATSUDATE, Takeshi Ookawara
  • Patent number: 7830341
    Abstract: An organic electroluminescence (EL) display device wherein pixel defects are reduced with a minimum increase in the number of thin film transistors used is to be provided.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: November 9, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hiroshi Oooka, Hirotsugu Sakamoto, Masamitsu Furuie, Takeshi Ookawara
  • Publication number: 20100213456
    Abstract: An organic electroluminescence display device is disclosed wherein plural organic electroluminescence elements each having an anode, a cathode and an organic layer sandwiched in between the anode and the cathode, the plural organic electroluminescence elements including organic electroluminescence elements developing different colors in a row direction, and at least one of the organic layers having an outer edge of a conic section at an end portion in a column direction thereof, the outer edge of the conic section becoming narrower gradually in its width in a row direction of vapor deposition thereof toward an extreme end at an end portion in a column direction thereof. The organic electroluminescence display device can improve the vapor deposition accuracy and the degree of design freedom.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 26, 2010
    Inventors: Noriharu Matsudate, Takeshi Ookawara, Kenta Kajiyama
  • Publication number: 20100177055
    Abstract: The present invention provides a display device with a touch panel which gives a user excellent touch feeling. A display device with a touch panel includes: a touch panel which includes a first substrate, a second substrate arranged to face the first substrate in an opposed manner with a gap formed therebetween, a first electrode which is constituted of a plurality of metal lines formed on a surface of the first substrate which faces the second substrate, and a second electrode formed on a surface of the second substrate which faces the first substrate; a display panel which is mounted on the second substrate on a side opposite to the first substrate; and a resin film which is adhered to the first substrate on a side opposite to the second substrate.
    Type: Application
    Filed: December 30, 2009
    Publication date: July 15, 2010
    Inventors: Takeshi OOKAWARA, Noriharu Matsudate
  • Patent number: 7714506
    Abstract: An organic electroluminescence display device is disclosed wherein plural organic electroluminescence elements each having an anode, a cathode and an organic layer sandwiched in between the anode and the cathode, the plural organic electroluminescence elements including organic electroluminescence elements developing different colors in a row direction, and at least one of the organic layers having an outer edge of a conic section at an end portion in a column direction thereof, the outer edge of the conic section becoming narrower gradually in its width in a row direction of vapor deposition thereof toward an extreme end at an end portion in a column direction thereof. The organic electroluminescence display device can improve the vapor deposition accuracy and the degree of design freedom.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: May 11, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Noriharu Matsudate, Takeshi Ookawara, Kenta Kajiyama
  • Publication number: 20090206749
    Abstract: A display device includes plural pixels each including a pixel electrode and a transparent electrode formed above the pixel electrode and an auxiliary wiring formed between light emitting regions each in each of the pixels on the transparent electrode, in which the auxiliary wiring is a metal wiring in a stripe shape formed on a resin. The transparent electrode is formed in common with each of the pixels, and a sheet resistance obtained by combining the transparent electrode with the metal wiring is 10 ?/? or less. The metal wiring is Cu, Al or SUS. A blackening treatment is applied to the metal wiring. The transparent electrode is ITO, IZO or ZnO. The metal wiring is formed in a non-light emitting region between the light emitting regions in each of the pixels in an extending direction of a scanning line. The resin is PET, TAC or POC.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 20, 2009
    Inventors: Noriharu Matsudate, Takeshi Ookawara
  • Publication number: 20090096371
    Abstract: A top-emission-type organic EL display device which exhibits uniform screen brightness is realized by preventing a voltage drop of an upper electrode formed of a transparent conductive film. Pixels each of which is sandwiched between an upper electrode and a lower electrode are arranged in a matrix array to form a display region. An auxiliary electrode extends in the lateral direction between the pixels and the pixels for preventing a voltage drop of the upper electrode. A current supply line which supplies an electric current to the upper electrode and the auxiliary electrodes are made conductive with each other by forming a through hole in an insulation layer. To ensure reliability of connection at the through hole, a contact electrode made of metal which overlaps with the auxiliary electrode is formed on the through hole by vapor deposition.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Inventors: Noriharu Matsudate, Takeshi Ookawara