Projector display module and power saving method thereof
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United States of America Patent
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Feb 24, 2015
Grant Date -
Aug 16, 2012
app pub date -
Feb 14, 2012
filing date -
Feb 16, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A projector display module and its power saving method are provided. The projector display module includes a signal source, an analog-to-digital converter, a display control unit, a ballast, and a light source. The display control unit retrieves signal from the signal source and outputs a control signal to the ballast to adjust the power of light source. The display control unit includes a comparison module and a control signal generation module. The power saving method includes the following steps: retrieving the first pixel data of a preset position of the first frame and the second pixel data of the preset position of the second frame from the signal source. The display control unit compares the first pixel data and the second data to produce a comparison result. According to the comparison result, the display control unit produces a control signal to adjust the power of light source.
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