Patent ID: 8749597

Claim:
A multi-frame overdriving circuit for use in a liquid crystal display, comprising: a counting unit for counting a number m of frame periods for which a pixel data corresponding to a pixel keeps a first gray value, wherein m is a positive integer; and a multi-frame overdriving unit for respectively outputting y multi-frame overdriving pixel data corresponding to the pixel within successive y frame periods starting from a first frame period when the pixel data corresponding to the pixel changes to a second gray value from the first gray value in the first frame period, wherein y is a positive integer larger than 1, and the value of y is determined according to the first gray value, the second gray value and the number m of frame periods; wherein if the pixel data changes to a third gray value from the second gray value after z frame periods when the pixel data corresponding to the pixel changes to the second gray value, then the multi-frame overdriving unit aborts (y-z) multi-frame overdriving pixel data which have not yet been outputted and respectively outputs y′ multi-frame overdriving pixel data corresponding to the pixel within successive y′ frame periods starting from a second frame period in which the multi-frame overdriving unit changes to the third gray value, wherein the y′ multi-frame overdriving pixel data are related to the second gray value, the third gray value, and a number m′ of frame periods for which the pixel data keeps the second gray value, where m′, y′ and z are positive integers, z is smaller than y.