A display drive apparatus drives a display panel, including display pixels, to carry out gradation display in accordance with display data. First gradation data with a first number of bits corresponding to the display data is supplied to the display drive apparatus, which generates second gradation data from the first gradation data with a second number of bits less than the first number of bits, third gradation data in which the second gradation data are eliminated from the first gradation data, and fourth gradation data corresponding to a gradation different from a gradation of the second gradation data. And, in each frame period, the display drive apparatus selectively outputs one of the second gradation data and the fourth gradation data to each of the display pixels based on the third gradation data, so as to display an intermediate gradation between the second gradation data and the fourth gradation data.