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:
Aug. 08, 2006
Filed:
Apr. 22, 2003
Hsiao-yi Lin, Hsinchu, TW;
Chi-jian Wen, Hsinchu, TW;
Hsiao-Yi Lin, Hsinchu, TW;
Chi-Jian Wen, Hsinchu, TW;
Toppoly Optoelectronics Corp., Miaoli, TW;
Abstract
A single pixel driving circuit for a transflective LCD is disclosed. It uses different digital/analog (D/A) signal converters to control the gamma correction signals of the transmissive liquid crystal capacitor and the reflective liquid crystal capacitor to improve the display quality of the transflective LCD. The driving circuit contains a first transistor and a second transistor whose gates couple together to a scan line, a first signal converter coupled to the source of the first transistor via a first data line, and a second signal converter coupled to the source of the second transistor via a second data line. The drain of the first transistor is coupled to the transmissive liquid crystal capacitor. The drain of the second transistor is coupled to the reflective liquid crystal capacitor.