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Backlight variation compensated display

  • US 20070120806A1
  • Filed: 11/28/2005
  • Published: 05/31/2007
  • Est. Priority Date: 11/28/2005
  • Status: Active Grant
First Claim
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1. A liquid crystal display having compensation for varying brightness levels, comprising:

  • a dimmable back-light adapted to provide varying brightness levels;

    a display panel, optically coupled to the back-light for receiving illumination therefrom, and whose properties depend upon the varying back-light brightness levels and having a first input for receiving a compensating signal;

    an electrical circuit for receiving back-light brightness level information;

    a non-volatile memory for storing values of an optimum display panel compensating signal as a function of back-light brightness levels; and

    a controller coupled to the memory, the electrical circuit and the display panel, for retrieving from the memory the optimum display panel compensating signal corresponding to the back-light brightness level received from the electrical circuit, and transmitting such optimum display panel compensating signal to the first input.

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