An example of the phase inversion control performed by phase inversion controller 37 will be described with reference to FIG. 8. FIG. 8 is a view illustrating an example of the phase inversion control of liquid crystal display device 10a of the second modification. FIG. 8 illustrates an example in which image display region 21 has 16 pixel rows and 7 pixel columns. Signs “+” and “?” illustrated beside image display region 21 indicate a phase of the data voltage for each pixel P.
As illustrated in a part (a) of FIG. 8, pixel rows 1, 5, 9, and 13 are the writing line in the first frame. An example in which the polarity of the data voltage varies every four pixel rows (each pixel row group 22c) is illustrated in the part (a) of FIG. 8. That is, inversion position I where the polarity is inverted every four pixel rows exists. In the first frame, inversion position I is located at a boundary between pixel rows 4 and 5, a boundary between pixel rows 8 and 9, and a boundary between pixel rows 12 and 13.
