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Luminance control of automotive displays using an ambient light sensor

  • US 20020101166A1
  • Filed: 12/29/2000
  • Published: 08/01/2002
  • Est. Priority Date: 12/29/2000
  • Status: Active Grant
First Claim
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1. A method for maintaining visibility of a display in a vehicle'"'"'s cockpit when the vehicle'"'"'s headlights are turned on during daytime lighting conditions, said method comprising the steps of:

  • determining a status of a lighting switch indicating a vehicle'"'"'s headlight status detecting an ambient light level;

    determining lighting conditions based on said detected ambient light level;

    logically selecting a brightness level to be commanded to said display based on said vehicle'"'"'s headlight status, said detected ambient light level, and said determined lighting conditions;

    overriding an automatic nighttime luminance control of said display; and

    applying said selected brightness level to said display increasing said brightness level of said display to an appropriate daytime brightness level for maintaining visibility of said display particularly during periods of daytime lighting conditions when said vehicle'"'"'s headlights are active.

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