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:
May. 01, 2012
Filed:
Jul. 15, 2009
Ping-lin Liu, Tainan, TW;
Ping-Lin Liu, Tainan, TW;
Chimei Innolux Corporation, , TW;
Abstract
A display system is disclosed in the present invention, which includes a low drop-out voltage regulator (LDO) for receiving an input voltage and providing a stable output voltage. The low drop-out voltage regulator includes a regulating circuit, a first switch, a current source circuit and an inverting circuit. The regulating circuit has a regulating circuit input, a regulating circuit output and a regulating circuit control terminal. The first switch selectively forms short or open circuit in accordance with ON/OFF states thereof. The current source circuit provides a fixed current to the control terminal and the output of the regulating circuit. The inverting circuit has an inverting circuit input coupled to the regulating circuit output and an inverting circuit output terminal coupled to the regulating circuit control terminal, the inverting circuit inverting the output voltage from the regulating circuit output. The regulating circuit control terminal adjusts the output voltage in accordance with a control voltage received thereof.