Patent ID: 7294857
Filing Date: 2007-11-13
Classification: C30B,H01L,Y10T

Abstract:
1. A method of manufacturing a thin film transistor array panel, the method comprising: depositing an amorphous silicon layer on an insulating substrate; converting the amorphous silicon layer to a polysilicon layer by a plurality of laser shots using a mask; forming a gate insulating layer on the polysilicon layer; forming a plurality of gate lines on the gate insulating layer; forming a first interlayer insulating layer on the gate lines; forming a plurality of data lines on the first interlayer insulating layer; forming a second interlayer insulating layer on the data lines; and forming a plurality of pixel electrodes on the second interlayer insulating layer, wherein the mask comprises a plurality of transmitting areas and a plurality of blocking areas arranged in a mixed manner and forming blocks, and characteristics of polysilicon areas of said polysilicon layer adjacent in the transverse and longitudinal directions are different, wherein the transmitting areas and the blocking areas in different blocks are differently arranged, and the step of converting comprises: sequentially illuminating a laser beam through the mask at different positions of the mask so as to completely illuminate the amorphous silicon layer with the laser beam.