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:
Jan. 01, 2002

Filed:

Oct. 05, 1999
Applicant:
Inventors:

Hayato Denda, Kanagawa-ken, JP;

Masamichi Nakajima, Kanagawa-ken, JP;

Masayuki Kobayashi, Kanagawa-ken, JP;

Assignee:

Fujitsu General Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/10 ;
U.S. Cl.
CPC ...
G09G 5/10 ;
Abstract

A display device which displays a multilevel gradation image by dividing a frame into a plurality of subfields in respect of time and by allowing the subfields corresponding to the luminance levels of the input image signals to emit light, comprising a motion vector detection unit which detects the motion vector which expresses the motion of a block from one frame to the next, a high speed dynamic image correction unit and a law speed dynamic image correction unit which correct the input image signal by dynamic image correcting means which are suitable for the respective cases when the value of the detected motion vector is larger than a preset value S and when it is smaller than the preset value S and output the corrected input image signal, and a switching unit which elects either the output signal of the high speed dynamic image correction unit or the output signal of the law speed dynamic image correction unit to output the selected signal to the display in accordance with whether or not the value of the detected motion vector is larger than the preset value S. As a result, both the high speed dynamic image part and the low speed dynamic image part of the image can be optimally corrected.


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