Patents by Inventor Kazuhide Aoyama

Kazuhide Aoyama 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).

  • Driving device of display device
    Patent number: 9070340
    Abstract: There is provided a driving device of a display device, including: a first switching portion; a second switching portion; and a control section that, when the potential of a drive signal line is lower than a target potential, operates the first switching portion by using, as a first reference potential, a potential that is less than or equal to the target potential and that is closest to the target potential, among predetermined n types (n?1) of potentials, and, when the potential of the drive signal line is higher than the target potential, operates the second switching portion by using, as a second reference potential, a potential that is greater than or equal to the target potential and that is closest to the target potential, among the n types of potentials.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: June 30, 2015
    Assignee: LAPIS SEMICONDUCTOR CO., LTD.
    Inventors: Hideaki Hasegawa, Hiroyoshi Ichikura, Kazuhide Aoyama
  • DRIVING DEVICE OF DISPLAY DEVICE
    Publication number: 20120086697
    Abstract: There is provided a driving device of a display device, including: a first switching portion; a second switching portion; and a control section that, when the potential of a drive signal line is lower than a target potential, operates the first switching portion by using, as a first reference potential, a potential that is less than or equal to the target potential and that is closest to the target potential, among predetermined n types (n?1) of potentials, and, when the potential of the drive signal line is higher than the target potential, operates the second switching portion by using, as a second reference potential, a potential that is greater than or equal to the target potential and that is closest to the target potential, among the n types of potentials.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 12, 2012
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventors: Hideaki Hasegawa, Hiroyoshi Ichikura, Kazuhide Aoyama