| 20100072911 | Control Circuit For Adjusting Backlight - A control circuit for adjusting a backlight color is provided. In accordance with a preferred embodiment, the control circuit comprises an input device, a control unit, a backlight, and a plurality of pulse-width modulation units. The input device receives a plurality of external messages to generate a corresponding plurality of control signals. The control unit has a plurality of pins, implements a plurality of calculations based on the plurality of control signals, and generates a plurality of light-adjusting signals, each of which has a respective pulse width. The backlight has a plurality of light sources for a color mixing. Each of the pulse-width modulation units is correspondingly coupled to each of the pins and to each of the light sources, and adjusts a light of the each light source based on the respective pulse width. | 03-25-2010 |
