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.
Patent No.:
Date of Patent:
Feb. 04, 1997
Filed:
Mar. 06, 1995
Applicant:
Inventors:
Andrew G Dingwall, Princeton, NJ (US);
Sherman Weisbrod, Skillman, NJ (US);
Assignee:
Thomson Consumer Electronics, S.A., Courbevoie, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G09G / ;
U.S. Cl.
CPC ...
345100 ; 345 90 ; 345 98 ; 345158 ;
Abstract
A liquid crystal display includes pixels that are arranged in columns and rows. Data line drivers responsive to a video signal develop output signals in data lines that correspond with the columns, respectively. An adjustment data line driver is provided. The adjustment data line driver is responsive to a reference DC constant signal at a mid-range of the video signal. An output signal of the adjustment data line driver is coupled to the other data line drivers in a negative feedback manner to compensate for output signal variations in the other data line drivers.