Title :
New Design and Application of High Efficiency LED Driving System for RGB-LED Backlight in LCD Display
Author :
Sang-Yun Lee ; Jae-Wook Kwon ; Hyung-Suk Kim ; Myoung-Soo Choi ; Kyung-Soo Byun
Author_Institution :
Opto Syst. Div., Samsung Electromech. Co. Ltd.
Abstract :
Novel RGB-LED driving system for LED backlight in LCD display have been developed and demonstrated. The driving system consists of the non-isolation type high efficiency constant current DC-DC converter and the dynamic controller with microcontroller. The efficiency of driver is up to 94.4% and the maximum color deviation, Deltau´v´, from the target is 0.002
Keywords :
DC-DC power convertors; LED displays; driver circuits; liquid crystal displays; microcontrollers; DC-DC converter; LCD display; LED driving system; RGB-LED backlight; dynamic controller; microcontrollers; Analog-digital conversion; Control systems; DC-DC power converters; Light emitting diodes; Lighting control; Liquid crystal displays; Optical control; Pulse width modulation; Pulse width modulation converters; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1711925
