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:
Sep. 12, 2000
Filed:
Jan. 03, 1997
Applicant:
Inventor:
Russell M Rosenquist, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 95 ; 345 89 ;
Abstract
A method of controlling contrast in LCDs using dynamic LCD biasing includes the step of identifying an expected bias function as a function of LCD material, LCD operating voltage, and LCD duty cycle. The expected bias function is then approximated to obtain a linear description of the expected bias function. A voltage is generated that follows the linear description of the expected bias function. The step of generating the voltage results in dynamic LCD biasing.
Rosenquist, Russell. (2000). Method and circuit for controlling contrast in liquid crystal displays (U.S. Patent No. 6118423). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6118423
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile