Patents by Inventor Minako Hamamoto

Minako Hamamoto 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).

  • Liquid crystal display device with partition walls made of color filter layers as a dam for the light shielding material
    Patent number: 7884900
    Abstract: A color filter layer is formed on a glass substrate of a counter substrate. A bank pattern is formed of the same material as a red color-filter portion, a green color filter portion and a blue color filter portion of the color filter layer at the outside of the color filter layer on the glass substrate in the same step. A light shielding material is coated in a bank between the bank pattern and the color filter layer to form a light shielding layer. The light shielding layer can be formed so as to be continuous with the peripheral edge of the color filter layer. The light shielding layer is less likely to overlap with the inside of a display frame portion of the liquid crystal panel, and the aperture ratio is less likely to be reduced. The number of manufacturing steps of the light shielding layer is reduced.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: February 8, 2011
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Takashi Doi, Hiroyuki Nagata, Norihisa Nakao, Kiyoshi Shohara, Minako Hamamoto, Takeshi Yamamoto
  • Liquid crystal display device and production method thereof
    Publication number: 20060267969
    Abstract: A color filter layer is formed on a glass substrate of a counter substrate. A bank pattern is formed of the same material as a red color-filter portion, a green color filter portion and a blue color filter portion of the color filter layer at the outside of the color filter layer on the glass substrate in the same step. A light shielding material is coated in a bank between the bank pattern and the color filter layer to form a light shielding layer. The light shielding layer can be formed so as to be continuous with the peripheral edge of the color filter layer. The light shielding layer is less likely to overlap with the inside of a display frame portion of the liquid crystal panel, and the aperture ratio is less likely to be reduced. The number of manufacturing steps of the light shielding layer is reduced.
    Type: Application
    Filed: May 24, 2006
    Publication date: November 30, 2006
    Applicant: Toshiba Matsushita Display Technology Co., Ltd.
    Inventors: Takashi Doi, Hiroyuki Nagata, Norihisa Nakao, Kiyoshi Shohara, Minako Hamamoto, Takeshi Yamamoto