Screen saver trigger using partial still picture detection
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United States of America Patent
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Jan 15, 2013
Grant Date -
Jul 16, 2009
app pub date -
Jan 11, 2008
filing date -
Jan 11, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method of determining when to activate a screen saver for a display device comprises selecting as a sample set a sparse subset of pixels which collectively form a display frame. An evaluation is performed of only the pixels in the sample set, to determine over a plurality of display frames whether pixels within the sample set have undergone a sufficient amount of change so that burn-in is unlikely. A determination is then made of whether to activate the screen saver based on a result of the evaluation.
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