Patent ID: 8102342

Claim:
A display device comprising: a display unit to display an image with a plurality of gradations; a plurality of video signal lines to display the image on the display unit; an applied gradation value determination unit to determine an applied gradation value to generate a video signal that is to be applied to the video signal lines, the applied gradation value being determined in accordance with an externally inputted first image signal, and a second image signal externally inputted one frame period previous to the first image signal, the one frame period being a period of time in which one screen image is displayed; an applied gradation value determination table to store first input values, second input values, and output values corresponding to combinations of the first input values and the second input values; and a gradation section setting table to store a plurality of gradation section values and a plurality of thresholds corresponding to the plurality of gradation section values, wherein a plurality of gradation values indicating the plurality of gradations are stored as the first input values, and the plurality of gradation section values, which indicate a plurality of gradation sections determined by classifying the gradation values based on the one or more thresholds are stored as the second input values, each gradation section including one or more gradation values, the plurality of gradation values are classified into the plurality of gradation sections based on the gradation section setting table, and the applied gradation value determination unit, determines which one of the gradation sections includes the gradation value for each gradation value based on the gradation section setting table, obtains output values corresponding to a combination of the gradation values as the first input values and the gradation section values as the second input values in accordance with the applied gradation value determination table, the first input values corresponding to the first image signal, the second input values indicating gradation sections in which gradation values corresponding to the second image signal are included, and determines the applied gradation values in accordance with the output values; wherein overshoot differential gradation values corresponding to the gradation values within each gradation section are similar.