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Determining the lighting conditions surrounding a device

  • US 20040036820A1
  • Filed: 05/23/2003
  • Published: 02/26/2004
  • Est. Priority Date: 05/23/2002
  • Status: Active Grant
First Claim
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1. A method for determining the lighting conditions surrounding a device comprising a transmissive color LCD (liquid crystal display) display (1), said method comprising measuring within said device the intensity of light passing through said LCD display (1) from outside of said device, while no backlight is switched on, wherein said light is color filtered by at least part of said LCD display (1) with a known color distribution

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