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:
Oct. 22, 2013
Filed:
Dec. 26, 2007
Ohkyong Kwon, Seoul, KR;
Ohkyong Kwon, Seoul, KR;
Samsung Display Co., Ltd., Yongin-City, Gyeonggi-Do, KR;
IUCF-HYU (Industry-University Cooperation Foundation Hanyang University), Seoul, KR;
Abstract
An ambient light sensing circuit includes a photodiode that flows a current in proportion to ambient light, a first storage capacitor that is electrically coupled with the photodiode and is discharged after being charged with a voltage of a first power supply, a second storage capacitor that is electrically coupled with the first storage capacitor and provides a coupling voltage, and a transistor that outputs a current from the first power supply corresponding to the coupling voltage of the first storage capacitor and the second storage capacitor after being electrically coupled with the second storage capacitor.