Patent ID: 9013517
Filing Date: 2015-04-21
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a data line; a plurality of pixel circuits, each including a transistor switch and a pixel electrode connected to the data line via the transistor switch; an output grayscale value generating circuit for outputting an output grayscale value corresponding to one of a plurality of candidate values, the output grayscale value being obtained by correcting a display grayscale value indicating a grayscale potential having one of positive polarity and negative polarity to be applied to one end of the transistor switch included in any one of the plurality of pixel circuits; and a data-line driving circuit for selectively outputting, to the data line, an output potential having one of the positive polarity and the negative polarity corresponding to the output grayscale value from among a plurality of positive-polarity and negative-polarity output potentials corresponding to the plurality of candidate values, respectively, wherein the data-line driving circuit outputs the potential having one of the positive polarity and the negative polarity so that a lowest one of the plurality of positive-polarity output potentials respectively corresponding to the plurality of candidate values becomes lower than a lowest positive-polarity grayscale potential indicated by the display grayscale value and that a highest one of the plurality of negative-polarity output potentials respectively corresponding to the plurality of candidate values becomes higher than a highest negative-polarity grayscale potential indicated by the display grayscale value; and wherein when the output grayscale value generating circuit outputs a first output grayscale value and a second output grayscale value being higher than the first output grayscale value, the data-line driving circuit outputs: