Patent ID: 6177920
Filing Date: 2001-01-23
Classification: G09G

Abstract:
An active matrix display device comprising:a plurality of pixels in matrix form, each pixel including a thin film transistor;a plurality of signal lines and a plurality of scanning lines, both of said lines connected to corresponding thin film transistors, respectively;at least one driver circuit being connected to either the signal lines or the scanning lines for driving the pixels, said driver circuit including:a synchronous clock counter functioning as an up and down counter, said synchronous clock counter receiving a clock signal and an input of an up and down changing switch; andan address decoder circuit receiving output of the synchronous clock counter as address signals through address lines,wherein a direction of selecting the signal lines or the scanning lines by the address decoder circuit is changed by selecting whether the up and down counter is operated at a rise of the clock signal or at a fall thereof according to the input of the up and down changing switch, and wherein said address lines connect said address decoder circuit with only said synchronous clock counter.