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:
Jun. 15, 2004

Filed:

Aug. 05, 2002
Applicant:
Inventors:

Goh Itoh, Yokohama, JP;

Hisao Fujiwara, Ageo, JP;

Hitoshi Kobayashi, Yokohama, JP;

Haruhiko Okumura, Fujisawa, JP;

Noboru Yamaguchi, Yashio, JP;

Toshiaki Watanabe, Yokohama, JP;

Yoshihiro Kikuchi, Yokohama, JP;

Takashi Ida, Kawasaki, JP;

Takeshi Chujoh, Tokyo, JP;

Yoko Sambonsugi, Yamato, JP;

Takeshi Nagai, Kawasaki, JP;

Rieko Furukawa, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 ;
U.S. Cl.
CPC ...
G09G 3/36 ;
Abstract

A liquid crystal display apparatus comprising a display panel having a plurality of pixels arranged in a matrix, signals lines for inputting a video signal to the plurality of pixels, and switching elements for selecting the pixels individually, a video decoder which decodes input compressed video data to obtain a reconstructed picture signal for each frame, a change region detector for detecting a change region between a previous frame and a current frame by using the reconstructed picture signal, to obtain address data on the change region, a display signal converter for converting the reconstructed picture signal into a display picture signal, a difference signal detector for detecting a difference signal indicating at least a difference between the previous frame and the current frame, a switch driver for selectively driving the switching elements to select the pixels corresponding to the change region in accordance with the address data, and a signal line driver for adding the difference signal and the display picture signal of the previous frame, and inputting an addition result to the signal lines.


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