Patents by Inventor Toshiya Ishii

Toshiya Ishii 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 with two areas of liquid crystal with orthogonal initial orientations
    Patent number: 6133974
    Abstract: A ferroelectric liquid crystal display includes a pair of first and second substrates placed substantially in parallel to each other to form a space between the first and second substrates so that a ferroelectric liquid crystal is provided in the space between the first and second substrates, wherein the ferroelectric liquid crystal is isolated into coexistent separate orientation regions that have crystal orientations which differ by 90 degrees from each other in initial orientation direction of an optical axis of ferroelectric liquid crystal molecules when no electric field is applied to the ferroelectric liquid crystal immediately after the ferroelectric liquid crystal has been injected into the space between the first and second substrates.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: October 17, 2000
    Assignee: NEC Corporation
    Inventor: Toshiya Ishii