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:
Jan. 06, 2009
Filed:
Dec. 01, 2004
Applicants:
Julian Tyrrell, Cricklade, GB;
Tony Coffey, Highworth, GB;
Inventors:
Julian Tyrrell, Cricklade, GB;
Tony Coffey, Highworth, GB;
Assignee:
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuits and methods to adjust the brightness of LCD displays have been achieved. The invention applies for LCD systems having a single or multiple display screens. The technique applied makes use of the property of LCDs where each pixel responds to the applied RMS voltage across it, and changing the timing of the COMMON signal reduces the applied voltage. This technique is applicable to both black and white and color displays as well as both standard scan and multi-addressing schemes.