Determination unit 32 may determine whether to perform the operation in FIG. 10 according to the displayed image. For example, determination unit 32 may determine whether to perform the operation in FIG. 10 based on an analysis result of the image data for one frame. Determination unit 32 may determine that the operation in FIG. 10 is performed when the number of pixel rows having the correlation with one pixel row is greater than or equal to a predetermined number. Determination unit 32 may determine that the operation in FIG. 4 is performed when the number of pixel rows having the correlation with one pixel row is less than the predetermined number. In this way, determination unit 32 may further determine that the operation to increase the effect that reduces the power consumption is performed according to the displayed image.
