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:
Feb. 01, 2005

Filed:

May. 25, 2001
Applicants:

Tetsuya Aoyama, Hitachi, JP;

Shinichi Komura, Hitachi, JP;

Ikuo Hiyama, Hitachi, JP;

Tsunenori Yamamoto, Hitachi, JP;

Yoshiyuki Kaneko, Hachioji, JP;

Mitsuji Ikeda, Hitachinaka, JP;

Osamu Itou, Hitachi, JP;

Hideo Satou, Hitachi, JP;

Shoichi Hirota, Hitachi, JP;

Inventors:

Tetsuya Aoyama, Hitachi, JP;

Shinichi Komura, Hitachi, JP;

Ikuo Hiyama, Hitachi, JP;

Tsunenori Yamamoto, Hitachi, JP;

Yoshiyuki Kaneko, Hachioji, JP;

Mitsuji Ikeda, Hitachinaka, JP;

Osamu Itou, Hitachi, JP;

Hideo Satou, Hitachi, JP;

Shoichi Hirota, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 336 ;
U.S. Cl.
CPC ...
Abstract

A display device is constituted by a display module which determines a plurality of pieces of pixels as belonging to one block unit, selects the plurality of pixels in each block unit at the same time and displays a picture image by adding one or a plurality of specific patterns each having different spatial frequencies of each block unit; a display control unit which controls the display module; a picture image signal generation unit which generates picture image signals; and a computing circuit which generates the specific patterns each having different spatial frequencies while weighting the same based on the picture image signals for every block unit. Thereby, a display device which reduces the signal clock frequency as well as increases the signal writing time, enhances the opening rate of an LC panel and permits a highly fine display and a high speed motion picture display, is obtained.


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