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:
Apr. 08, 1997

Filed:

Apr. 14, 1994
Applicant:
Inventors:

Sywe N Lee, Taipei, TW;

Dyi-Chung Hu, Shinchu, TW;

Huann-Min Tang, Shinchu, TW;

Assignee:

Prime View HK Limited, Hong Kong, HK;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ; G09G / ;
U.S. Cl.
CPC ...
345 93 ; 345100 ; 345904 ;
Abstract

A redundant row select driver circuit system is provided for enhancing manufacturing yield and reducing manufacturing costs in the liquid crystal data displays. In particular, a row select driver circuit is provided with redundant subcircuits that can effectively replace any damaged subcircuit within the row select driver circuit. In addition, there is disclosed a capacitance compensating scheme to adjust the gray scale level in a damaged row select line with a break inside the display area. And finally, an enhanced diagnostic scheme is disclosed for testing of each row select driver subcircuits in a active matrix display having row select driver circuits connected to each end of row select lines.


Find Patent Forward Citations

Loading…