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Determining the lighting conditions surrounding a device

  • US 7,301,534 B2
  • Filed: 05/23/2003
  • Issued: 11/27/2007
  • Est. Priority Date: 05/23/2002
  • Status: Active Grant
First Claim
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1. A method comprising:

  • measuring within a device comprising a transmissive color liquid crystal display for presenting information to a user, the intensity of light passing through said liquid crystal display from outside of said device, while no backlight is switched on, wherein said light is color filtered by at least part of said liquid crystal display with a known color distribution.

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