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:
Mar. 18, 2008

Filed:

Feb. 20, 2004
Applicants:

Hirofumi Honda, Yamanashi-ken, JP;

Tetsuya Shigeta, Yamanashi-ken, JP;

Tetsuro Nagakubo, Yamanashi-ken, JP;

Inventors:

Hirofumi Honda, Yamanashi-ken, JP;

Tetsuya Shigeta, Yamanashi-ken, JP;

Tetsuro Nagakubo, Yamanashi-ken, JP;

Assignee:

Pioneer Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A display panel drive suppresses dither patterns in a displayed image. Each of the display lines of the panel is divided into M display line groups including a group of [M≅(k−1)+1]th display lines (where M is a natural number, and k is a natural number of n/M or smaller), a group of [M≅(k−1)+2]th display lines, . . . and a group of [M≅(k−1)+M]th display lines. A different offset value is added to pixel data corresponding to each display line group to derive multi-grayscale pixel data. Then, a lighting or extinction mode setting is done based on the pixel data with respect to each pixel cell belonging to the display line groups, each different in at least M subsubfields among subfields constituting a video signal field. In one example, the luminance levels represented by the pixel cells vertically adjacent to one another in a screen are varied.


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