Patents by Inventor Mayumi Teruya

Mayumi Teruya 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: 5626995
    Abstract: A soluble polyimide solution is applied to the color filter substrate and the TFT substrate of a liquid crystal display. The lower half of the pixels in the color filter substrate and the upper half of the pixels in the TFT substrate are dried by heating by irradiating it with a laser beam. The remaining sections are thereafter dried naturally. The pretilt angle of the molecules of the liquid crystal material in contact with the sections dried by heating with the laser beam is small and the pretilt angle of the molecules which are in contact with the section dried naturally is large, enabling the viewing angle to be widened.
    Type: Grant
    Filed: August 30, 1995
    Date of Patent: May 6, 1997
    Assignee: International Business Machines Corporation
    Inventors: Mayumi Teruya, Hideo Takano, Yukito Saitoh, Hiroyuki Kamiya, Masaki Hasegawa
  • Patent number: 5434688
    Abstract: The object of this invention is to provide a light scattering liquid crystal display applicable to direct view type displays which realizes a structure with uniform-brightness and high-contrast. A liquid crystal display of this invention including a light scattering liquid crystal cell 10 comprising: polymer dispersed liquid crystal; a first surface and a second surface defining the liquid crystal cell 10; a background having black patterns 17, each occupying an area covering at least display pixel, and first openings 19 existing between the black patterns on the first surface; and opaque mask 21 having second openings 23 and shading the locations opposite to the first openings 19.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: July 18, 1995
    Assignee: International Business Machines Corporation
    Inventors: Yukito Saitoh, Mayumi Teruya