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Method and apparatus for controlling screen brightness corresponding to variation of illumination

  • US 9,424,804 B2
  • Filed: 09/30/2013
  • Issued: 08/23/2016
  • Est. Priority Date: 09/28/2012
  • Status: Active Grant
First Claim
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1. A method of controlling a screen brightness in a user device, the method comprising:

  • detecting a first illumination when a display unit is turned on;

    determining a first optimal brightness corresponding to the first illumination with reference to a first profile of a plurality of predefined brightness profiles for respective illuminations, and controlling the screen brightness to be the first optimal brightness;

    maintaining, in response to an illumination change being detected, the screen brightness as the first optimal brightness;

    detecting, a second illumination corresponding to the first optimal brightness with reference to a second profile of the plurality of predefined brightness profiles; and

    determining, in response to the illumination change reaching the second illumination, a second optimal brightness corresponding to the second illumination with reference to the first profile, and controlling the screen brightness to be the second optimal brightness.

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