Flat-panel display device

Abstract

A flat-panel display device changes the level of a video signal supplied from a video signal source in the horizontal blanking period on the basis of a selected voltage value from a voltage generation circuit, and this voltage is sampled in response to a sampling clock from a timing generation circuit and is latched by a signal line driving circuit. The latched signal is supplied to a flat display panel along with a scanning signal from a scanning line driving circuit to display an image according to the aspect ratio of the flat display panel.

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