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METHOD FOR MAINTAINING THE WHITE COLOUR POINT IN A FIELD-SEQUENTIAL LCD OVER TIME

  • US 20100156962A1
  • Filed: 03/05/2010
  • Published: 06/24/2010
  • Est. Priority Date: 10/05/2004
  • Status: Active Grant
First Claim
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1. A method for maintaining a colour point for a plurality of light emitting elements used to illuminate a display of an electronic device, comprising:

  • determining a first value corresponding to activation data of each element of said plurality of light emitting elements, the activation data corresponding to one of the total time the light source has been activated and a function of activation time and an intensity value of the plurality of light emitting elements;

    identifying a compensation value for aging of said each element based on said first value;

    adjusting an output to produce said colour on said display by adjusting an intensity for each said element utilizing its compensation value; and

    for a grey scale image to be generated on said display, at a pixel of said displaysetting said pixel to a transmissive state if said grey scale image at said pixel includes a colour to be activated; and

    not turning on said pixel if said grey scale image at said pixel does not include said colour.

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