Liquid crystal display device and method of driving the same

An active matrix-type liquid crystal display device, comprising:

• a liquid crystal panel configured such that sub-pixels constituting color pixels are arranged two-dimensionally;
• an adjacent gradation correcting unit configured to correct gradations of the sub-pixels included in a video signal;
• and
• a drive circuit configured to drive the liquid crystal panel based on a video signal after correction obtained by the adjacent gradation correcting unit, wherein
• when the adjacent gradation correcting unit determines a gradation of a target sub-pixel corresponds to a liquid crystal application voltage is higher than for a gradation of an adjacent sub-pixel, and that a gradation difference between the target sub-pixel and the adjacent sub-pixel is large, the adjacent gradation correcting unit performs correction processing to the video signal for correcting the gradation of the adjacent sub-pixel so as to make the gradation difference smaller,
• each of the sub-pixels has a long side and a short side, and
• the adjacent gradation correcting unit performs the correction processing taking two sub-pixels disposed adjacent on the short side out of four sub-pixels disposed around the target sub-pixel as the adjacent sub-pixel.