Patent ID: 7173588
Filing Date: 2007-02-06
Classification: G09G

Abstract:
1. A matrix display device having a plurality of picture elements arranged in a matrix form, comprising: a plurality of data signal lines for supplying to said plurality of picture elements picture voltages in accordance with a picture respectively; and a plurality of scanning signal lines for scanning said plurality of picture elements to supply to said plurality of picture elements the picture voltages supplied by said data signal lines, wherein a pre-write voltage differing from the picture voltage is supplied to said picture element a fixed time before the picture voltage is supplied to said picture element, wherein the pre-write voltage is at a gradation value always having the highest speed of response to a change in gradation, regardless of the gradation value of a picture after response, the matrix display device further having a switching circuit for selecting and outputting said picture voltage or said pre-write voltage; and a data driving circuit for supplying the selected voltage supplied from said switching circuit to said picture element via said data signal line.