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:
Mar. 15, 2011
Filed:
May. 03, 2007
Wai Hon NG, N.T., HK;
Man Chun Wong, N.T., HK;
Chi Wai NG, Tsuen Wan, HK;
Siu Kei Wong, N.T., HK;
Jimmy Chiu, Shatin, HK;
Wai Hon Ng, N.T., HK;
Man Chun Wong, N.T., HK;
Chi Wai Ng, Tsuen Wan, HK;
Siu Kei Wong, N.T., HK;
Jimmy Chiu, Shatin, HK;
Solomon Systech Limited, Shatin, N.T., HK;
Abstract
A drive system for a display having segment and common lines is provided. The system may include a first charge pump; a first storage capacitor coupled to the first charge pump at a first pumped voltage level; a second charge pump, including an input terminal coupled to the first storage capacitor; and a second storage capacitor coupled to a pump output terminal at the second pumped voltage level. The system may also include a controller coupled to the first and second storage capacitors, coupled to segment and common lines of an associated display; and a control circuit operating a plurality of switching devices to selectively connect the segment output terminal to the first and second storage capacitors to supply charge to the segment output terminal during a first phase and to return charge from the segment output terminal to the second storage capacitor during a second phase.