Patent ID: 6437775
Filing Date: 2002-08-20
Classification: G09G

Abstract:
A flat display unit comprising:a display area including a plurality of scanning lines, a plurality of signal lines, a plurality of switching elements, each of which is arranged in the vicinity of each of the intersections of said scanning lines and said signal lines, and a plurality of display pixels, each of which is connected to a corresponding one of said switching elements, said display area being divided into a plurality of small regions, each of which includes a set of signal lines of said plurality of signal lines; and a plurality of signal line driving circuits, each of which is arranged so as to correspond to a corresponding one of said small regions, for supplying a picture signal to each set of signal lines in parallel, at least one of said plurality of signal line driving circuits including: 1) a shift register for transferring a start pulse in a predetermined transfer direction in accordance with a predetermined timing; 2) a sampling circuit for sampling an input picture signal to supply the picture signal to a corresponding one of said signal lines on the basis of an output of each stage of said shift register; and 3) a control circuit for inverting the transfer direction of said start pulse every predetermined optional horizontal period within a frame.