Patent ID: 7573472
Filing Date: 2009-08-11
Classification: G09G

Abstract:
1. A drive circuit for driving a device, wherein the drive circuit comprises a circuit which outputs at least one driving signal having a driving waveform whose pulse width is controlled in a unit of slot width Δt and whose level in each slot is predetermined as one of A 1 to A n , where n is an integer equal to or larger than 2, A 1 <A 2 < . . . <A n , A 1 to A n correspond to non-zero gradation levels, and for all of the driving waveforms having a rising portion up to a predetermined level A k , where k is an integer equal to or larger than 2 and equal to or smaller than n, the rising portion rises up to the predetermined level A k through a level corresponding to a non-zero gradation level smaller than A k in order at least by one slot from a level A 1 to a level A k−1 .