Operation method of shutter glasses based 3D display device
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United States of America Patent
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Sep 23, 2014
Grant Date -
May 16, 2013
app pub date -
Nov 26, 2011
filing date -
Nov 16, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention relates to an operation method of shutter glasses based 3D display device, which alternatively supplies left-eye and right-eye frame signals to a liquid crystal panel to drive the liquid crystal panel to respectively form left-eye and right-eye images, which cooperate with illumination of a scanning back light unit and timing control of the shutter glasses to simulate left and right eyes respectively with left-eye and right-eye signals for perception of a 3D image, wherein in a period of a current frame signal, duty time of each of blocks of the back light unit is located between the time when liquid crystal corresponding to the block completely responds after being driven by the current frame signal and the time when the liquid crystal corresponding to the block starts to respond as being driven by a subsequent frame signal. The operation method of shutter glasses based 3D display device according to the present invention alleviates after image caused by crosstalk between left and right eyes, compensates the reduction of luminance caused by shortening the duty time of each block of the back light unit, and thus achieves the purpose of saving energy.
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