Patent ID: 8730148

Claim:
A method of driving a light source of a light source module that includes a plurality of light-emitting blocks, each light-emitting block including a red light source, a green light source and a blue light source, the method comprising: sensing a luminous intensity of an environment; adjusting a wavelength of light generated from the light source module according to the luminous intensity of the environment; and individually controlling a luminance of the light-emitting blocks according to a gray-scale of a plurality of image blocks corresponding to the light-emitting blocks using the light adjusted by the wavelength, wherein adjusting the wavelength of the light includes: increasing the wavelength of the light when the luminous intensity is less than a low reference value; and decreasing the wavelength of the light when the luminous intensity is greater than a high reference value, wherein increasing the wavelength of the light includes: increasing a peak current of a red driving signal driving the red light source; and decreasing a duty ratio of the red driving signal.