| 摘要 |
Disclosed herein is a backlight control apparatus, including an LED backlight drive unit driving an LED backlight module and a control unit outputting an enable signal deterministic of whether to drive the LED backlight drive unit or not to the LED backlight drive unit, and stepwisely decreasing or increasing the duty ratio of a PWM control signal to control the brightness of the LED backlight module and outputting it to the LED backlight drive unit. |
