Patent ID: 7540643

Claim:
A backlight module, for a display panel comprising: a first display area; a light guide; a light-emitting unit disposed on one lateral side of the light guide providing light to the display panel comprises a plurality of first light-emitting elements and a plurality of second light-emitting elements disposed in an alternating manner; and a control unit coupled to the light-emitting unit; wherein, when the display panel displays images in a 2-D mode, the control unit drives the first light-emitting elements to emit light to the first display area resulting in a first total brightness; wherein, when the display panel displays images in a 3-D mode, the control unit drives the first light-emitting elements and a second number of the second light-emitting elements to emit light to the display panel resulting in a second total brightness; and wherein, the second total brightness in the display panel is greater than the first total brightness in the display panel.