Abstract
AbstractWe proposed adaptive pre‐charge driving (APD) technique that is appropriate for large‐size and high‐resolution liquid crystal display (LCD) panels for TVs to compensate the shortage of charging voltage to a pixel. APD technique enables to realize LCD panels of 8K resolution even though thin‐film‐transistor (TFT) is amorphous‐Si. Recently, this APD renamed line‐overdrive (line‐OD), and it has been reported to be applied to 8K‐LCD panels, and its technical value is increasing. This paper describes an image‐sticking phenomenon with APD. We have made clear that this phenomenon is triggered by the residual DC that was created by the charging performance to the pixel of positive polarity being inferior to the charging performance to that of negative polarity. To solve this issue, it further explains how best to optimize the pre‐charge table for positive and negative polarities, respectively, by effectively using the high‐precision pixel simulation.
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