Patents by Inventor Manabu Sawasaki

Manabu Sawasaki 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).

  • Substrate for liquid crystal display device, manufacturing method of the same, and liquid crystal display device having the same
    Publication number: 20020063834
    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 that 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 16, 2001
    Publication date: May 30, 2002
    Applicant: FUJITSU LIMITED
    Inventors: Manabu Sawasaki, Takashi Takagi, Tomonori Tanose
  • COLOR DISPLAY DEVICE HAVING FILTERLESS AREAS
    Publication number: 20010040654
    Abstract: A color display device comprises a substrate, pixel structure demarcating a multiplicity of light-transmissive unit display regions formed on said substrate and color filters configured to cover only a part of area of respective unit display regions and not to cover the remaining are of the unit display region. A color display device which can be easily designed and is capable of producing desired color reproducibility and light transmissivity is provided.
    Type: Application
    Filed: April 13, 1999
    Publication date: November 15, 2001
    Inventors: YOSHIO KOIKE, MANABU SAWASAKI
  • Color display device having filterless areas
    Patent number: 6310672
    Abstract: A color display device comprises a substrate, pixel structure demarcating a multiplicity of light-transmissive unit display regions formed on said substrate and color filters configured to cover only a part of area of respective unit display regions and not to cover the remaining are of the unit display region. A color display device which can be easily designed and is capable of producing desired color reproducibility and light transmissivity is provided.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: October 30, 2001
    Assignee: Fujitsu Limited
    Inventors: Yoshio Koike, Manabu Sawasaki
  • Liquid crystal display device and method of manufacturing the same
    Publication number: 20010026347
    Abstract: A liquid crystal display device of the present invention has a structure in which vertically aligned liquid crystal is sealed between a TFT substrate and a CF substrate. Pixel electrodes in which slits are provided are formed on the TFT substrate, while cell gap holding spacers and domain defining projections are formed on the CF substrate. For example, positive type photoresist is coated on a common electrode. Then, first exposure is executed by using a mask for light-shielding spacer forming regions and projection forming regions, and then second exposure is executed by using a mask for light-shielding the spacer forming regions. Then, the photoresist is developed. Accordingly, the spacers and the projections, each having a different height, can be formed simultaneously.
    Type: Application
    Filed: January 12, 2001
    Publication date: October 4, 2001
    Applicant: FUJITSU LTD.
    Inventors: Manabu Sawasaki, Takashi Takagi, Yoji Taniguchi, Hiroyasu Inoue, Susumu Nakano, Tomonori Tanose, Naonobu Matsui, Kazuyuki Hosokawa, Kazuhiko Sumi, Masahiro Ikeda, Naoshige Itami