Polysilicon thin film and manufacturing method thereof, array substrate and display device

摘要

There are disclosed a polysilicon thin film and a manufacturing method thereof, an array substrate and a display device. The manufacturing method of the polysilicon thin film comprises the following steps: forming a graphene layer and an amorphous silicon layer which are adjacent; forming polysilicon by way of crystallizing amorphous silicon so as to obtain the polysilicon thin film. The polysilicon thin film manufactured by the method possesses good characteristics.