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:
Apr. 29, 2014
Filed:
Apr. 06, 2010
Chiao-chih Yang, Hsin-Chu, TW;
Chih-hua Lin, Hsin-Chu, TW;
Wei-jen Chou, Hsin-Chu, TW;
Chien-chung Hsiao, Hsin-Chu, TW;
Chiao-Chih Yang, Hsin-Chu, TW;
Chih-Hua Lin, Hsin-Chu, TW;
Wei-Jen Chou, Hsin-Chu, TW;
Chien-Chung Hsiao, Hsin-Chu, TW;
Young Lighting Technology Inc., Hsin-chu, TW;
Abstract
A driving apparatus and a driving method of a backlight module are provided. The backlight module includes multiple LEDs. The driving apparatus includes at least one thermal sensor, an optical sensor, and a processor. The thermal sensor is for detecting a working temperature of the LEDs. The optical sensor is for detecting brightness and color of the backlight module after a calibration function is enabled, to obtain difference values of the detected brightness and color with respect to predetermined brightness and color. The processor is for providing at least one initial thermal compensation table, to determine working currents of the LEDs associated with the working temperature. The processor further is for calibrating a content of the initial thermal compensation table corresponding with a current working temperature of the LEDs and storing the calibrated thermal compensation table as the initial thermal compensation table after the calibration function is enabled.