Patents by Inventor Hiroshi Kunihara

Hiroshi Kunihara 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).

  • Dynamic scattering matrix liquid crystal display having voltage booster in driving voltage supply circuit
    Patent number: 5663743
    Abstract: A dynamic scattering matrix LCD, which requires a low expenditure of electric power without deteriorating contrast even when it is used for a high speed response STN liquid crystal display, includes a plurality of data line transparent electrodes, a plurality of scanning line transparent electrodes, data line drivers which selectively supply one of two levels of a first voltage signal to each of the data line transparent electrodes according to contents of a display image, scanning line drivers which selectively supply one of three levels of a second voltage signal to each of the scanning line transparent electrodes according to a control signal, and a voltage supply circuit which supplies the first voltage signal to the data line drivers and the second voltage signal to the scanning line drivers.
    Type: Grant
    Filed: April 14, 1995
    Date of Patent: September 2, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuhisa Fujii, Tomohide Ohira, Hiroshi Kunihara