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Method of driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus

  • US 8,730,148 B2
  • Filed: 05/14/2009
  • Issued: 05/20/2014
  • Est. Priority Date: 11/19/2008
  • Status: Expired due to Fees
First Claim
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1. 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.

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