The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 06, 2005

Filed:

Mar. 19, 2002
Applicants:

Akitoyo Konno, Hitachi, JP;

Makoto Tsumura, Hitachi, JP;

Tsunenori Yamamoto, Hitachi, JP;

Ikuo Hiyama, Hitachinaka, JP;

Yoshinori Aono, Hitachinaka, JP;

Inventors:

Akitoyo Konno, Hitachi, JP;

Makoto Tsumura, Hitachi, JP;

Tsunenori Yamamoto, Hitachi, JP;

Ikuo Hiyama, Hitachinaka, JP;

Yoshinori Aono, Hitachinaka, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G003/36 ;
U.S. Cl.
CPC ...
Abstract

A liquid crystal display apparatus which is adapted to divide one frame period into a preset writing period, a first writing period, a first holding period, a second writing period, and a second holding period, to be driven in this sequence. The first and second writing periods have reverse writing voltage polarities and the second writing period is set to be about ½ of the first writing period.


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