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. 04, 2003

Filed:

Jun. 26, 2000
Applicant:
Inventors:

Naruhiko Kasai, Yokohama, JP;

Tsutomu Furuhashi, Yokohama, JP;

Hiroshi Kurihara, Mobara, JP;

Nobutaka Kato, Owariasahi, JP;

Masashi Mori, Chigasaki, JP;

Yukio Hiruta, Fujisawa, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 ; G09G 5/00 ;
U.S. Cl.
CPC ...
G09G 3/36 ; G09G 5/00 ;
Abstract

In a liquid crystal display apparatus having a liquid crystal display panel, an input analog display data is converted to a digital display data, a data portion is selected from the digital display data, and display status information is displayed on the display panel in the form of an overlay display data over the digital display data, so that display adjustment on the display panel is possible. The display adjustment may be automatically performed by use of a minimum value data and a maximum value data, found among the digital display data, for an automatic offset level adjustment and for an automatic gain level adjustment, respectively.


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