BLACK DUTY INSERTION MODE LIQUID CRYSTAL DISPLAY FOR VIRTUAL REALITY
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United States of America Patent
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app pub date -
Mar 31, 2017
filing date -
Apr 1, 2016
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Abstract
A head mounted display (HMD) includes a display device that uses a black duty insertion mode. The display device includes a liquid crystal (LC) panel, a back light unit (BLU), and a data driver. In the black duty insertion mode, the BLU emits light during a portion of a frame period and does not emit light during a remaining portion of the frame period. The data driver writes data to the LC panel such that liquid crystal material in the LC panel transitions during the frame period including the portion of the frame period that the BLU emits light. The portion of the frame period the BLU emits light is less than half of the frame period and may be 20% or less of the frame period.
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