LIQUID CRYSTAL DISPLAY DEVICE WITH JUDGING SECTION

Disclosed are a liquid crystal display device and a method and a circuit for driving the same.A gradation difference between the image data to be supplied to the picture elements of the same color of two pixels adjacent in a horizontal direction is detected in a gradation difference judging section, and when the gradation difference is larger than a predetermined gradation difference, it is judged in the same pattern of a size relationship detecting section and a horizontal pattern counting section whether the size relationship between the gradations of the picture elements of the same color of the two pixels repeats in the horizontal direction at least a certain number of times or not. And hence, when the size relationship repeats at least a certain number of times, it is compared with those of a plurality of lines continuously arranged in a vertical direction, and it is judged on the basis of the result of the comparisons whether a flicker occurs or not. And hence, when the flicker may occur over a plurality of frames, a polarity pattern switching signal is changed, whereby a polarity pattern which determines the polarities of the image data to be supplied from a data driver to a liquid crystal display panel is switched.