Patent ID: 8633880

Claim:
A display device comprising: a display panel having a plurality of sub-pixels and a plurality of video lines which input tone voltages to the sub-pixels, a video line driving circuit which supplies, based on input display data, the tone voltage corresponding to the display data to each of the video lines, and a tone voltage generating circuit which generates the tone voltages, wherein: each frame period comprises a light frame period for a light frame and a dark frame period for a dark frame, subsequent to the light frame period, wherein, during the dark frame, a tone is displayed to reduce effects of animated-image blur on the display panel, and the sub-pixel displays one tone requested from an external system by displaying two tones during each frame period including the light frame and the dark frame period, display data of an image A which is displayed during a period of the light frame and display data of an image B which is displayed during a period of the dark frame are display data which are generated based on display data which is input from the external system, the video line driving circuit supplies, as the tone voltage corresponding to the display data, a first set of tone voltages to the video lines during the period of the light frame and a second set of tone voltages to the video lines during the period of the dark frame which is subsequent to the light frame, the first set of tone voltages are converted from the display data of the image A displayed during the light frame based on a second conversion characteristic by the tone voltage generating circuit, the second set of tone voltages are converted from the display data of the image B displayed during the dark frame based on a first conversion characteristic by the tone voltage generating circuit, a tone reference voltage for the light frame is set to be different from a tone reference voltage for the dark frame so that the tone voltage during the light frame and the tone voltage during the dark frame are changed such that, at a same tone, an absolute value of the tone voltage of the second set of tone voltages is larger than an absolute value of the tone voltage of the first set of tone voltages, and a viewing brightness is generated by combining the first set of tone voltages and the second set of tone voltages.