Patent ID: 7898556

Claim:
A display device comprising: a display portion having a plurality of pixels arranged in a two-dimensional form, a plurality of scanning lines arranged along the plurality of pixels for respective rows and a plurality of signal lines arranged along the plurality of pixels for respective columns, a scanning line drive circuit which drives the plurality of scanning lines, a signal line drive circuit which supplies video signals to the plurality of pixels via the plurality of signal lines, a timing controller which controls the scanning line drive circuit and signal line drive circuit to drive the display portion in a progressive mode or interlace mode, and a gradation correction table which outputs correction data to correct a difference in a gradation level when the display portion is driven in the progressive mode in a case where the display portion is driven in the interlace mode, wherein the gradation correction table is used to calculate the differences between luminance values at an interlace mode driving time for a selected gradation and a plurality of gradations before and after the selected gradation and a luminance value at a progressive mode driving time for each gradation used as a reference and to set a progressive gradation corresponding to a gradation which makes an absolute value of the difference minimum as an approximated gradation at the interlace mode driving time.