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. 05, 2014
Filed:
Nov. 07, 2011
Wen-chun Wang, Taichung, TW;
Wen-tui Liao, Tai Chung, TW;
Tsung-yu Wang, Taichung, TW;
Wintek Technology (H.K) Ltd., Dongguan, Guangdong Province, TW;
Wintek Corporation, Taichung, TW;
Abstract
A driver circuit for a light-emitting device includes a light-emitting device, a data receiving unit, a storage unit, a driver unit and a voltage divider. The data receiving unit receives a data signal, the storage unit stores a capacitor voltage, and a positive correlation exists between the capacitor voltage and the data signal. The driver unit is coupled to the light-emitting device, and the driver unit is turned on to drive the light-emitting device according to the capacitor voltage and to generate a threshold voltage of the driver unit. The voltage divider is coupled between the data receiving circuit and the light-emitting device and turned on by the capacitor voltage to generate a divided voltage. The voltage divider detects a voltage variation in the threshold voltage and in a voltage across the light-emitting device and adjusts the divided voltage according to the voltage variation.