VIDEO DATA DEPENDENT ADJUSTMENT OF DISPLAY DRIVE
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United States of America Patent
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Issued Date -
Aug 16, 2012
app pub date -
Feb 15, 2011
filing date -
Feb 15, 2011
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Abandoned
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Abstract
Devices and methods are disclosed for improving image quality in a display system. The devices and methods adjust the display optical states based on the input image data. The devices and methods may compensate for temporal variation of the optical states in a display panel arrangement having a liquid crystal and an insulating layer due to a net DC field across the liquid crystal. The variation in optical states may be variation between the position of the optic axis of the liquid crystal for a zero net DC field drive waveform and a drive waveform with a net DC field across the liquid crystal. The variation of the optic axis of the liquid crystal may be due to ionic charge movement through the liquid crystal. The display panel arrangement may have a decay time constant of the liquid crystal and the insulating layer less than a maximum time that is visually acceptable for image sticking to persist on the display panel.
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