Patent ID: 6432757
Filing Date: 2002-08-13
Classification: H01L

Abstract:
A method of manufacturing a liquid crystal display panel wherein a pixel area, and a peripheral circuit area including a horizontal scan area and a vertical scan area are formed in a polycrystalline semiconductor film on a substrate, the method comprising the steps of:forming an amorphous silicon film in regions corresponding to each area on the substrate; poly-crystallizing the amorphous silicon film in the region corresponding to the horizontal scan area by performing annealing by means of irradiation of excimer laser beams having an energy of at least 10 J and a pulse frequency of at least &frac16; Hz; poly-crystallizing the amorphous silicon film in the region corresponding to the pixel area by performing annealing by means of lamp lights; and poly-crystallizing the amorphous silicon film in the region corresponding to the vertical scan area by performing annealing by means of irradiation of excimer laser beams having an energy of at least 10 J and a pulse frequency of at least &frac16; Hz or lamp lights.