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Apparatus and method for display lighting adjustment

  • US 8,970,571 B1
  • Filed: 03/13/2012
  • Issued: 03/03/2015
  • Est. Priority Date: 03/13/2012
  • Status: Active Grant
First Claim
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1. A method of color balancing an illumination source of a display array, the method comprising:

  • sequentially providing first, second, and third color lamp light to the display array, wherein only one of the first, second, and third color lamp light is sequentially provided to the display array at one time;

    acquiring a first light measurement of the first color lamp light, while the first color lamp light is provided to the display array;

    acquiring a second light measurement of the second color lamp light, while the second color lamp light is provided to the display array;

    acquiring a third light measurement of the third color lamp light, while the third color lamp light is provided to the display array;

    acquiring a fourth light measurement of ambient light, wherein the fourth light measurement is made while the first, second, and third color lamp light are not provided to the display array, and wherein the first, second, third, and fourth light measurement are measured by one photodetector;

    determining an emission-time for each of the first, second, and third color lamp light, based on the first, second, third, and fourth light measurements, respectively; and

    sequentially re-providing the first, second, and third color lamp light to the display array according to the emission-time determined for each of the first, second, and third color lamp light.

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