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:
Jul. 15, 2008
Filed:
Dec. 30, 2003
Chung Yee Ricky NG, Ma On Shan, HK;
Stephen Wai-yan Lai, Chandler, AZ (US);
Wai Yu Felix Wong, Kowloon, HK;
Cheung Fai Lee, Shatin, HK;
Chung Yee Ricky Ng, Ma On Shan, HK;
Stephen Wai-Yan Lai, Chandler, AZ (US);
Wai Yu Felix Wong, Kowloon, HK;
Cheung Fai Lee, Shatin, HK;
Solomon Systech Limited, Pak Shek Kok, NT, HK;
Abstract
According to the present invention, a display driver includes a voltage and current source that drive pixels and compensate for parasitic voltage to produce row pixels having intensities that are relatively uncorrelated to the number of 'ON' pixels in a given row. The voltage source that provides the pre-charge for each pixel includes a constant value and a compensation voltage determined based on the number of 'ON' pixels in each row. The compensation voltage is also determined based on the characteristics of the diodes associated with each pixel and the resistance associated the common ground of each row.