A heating step is performed in a printing operation where a gas jet emitting from a nozzle assembly impinges the exterior surface of a printing plate. The gate insulating film includes a first portion located on a wall of the trench and a second portion located on upper and bottom portions of the trench. A side of the capacitive touch panel facing electromagnetic interference is formed with an electromagnetic shielding for avoiding the interference of EMI and RFI. Features in the topographical pattern have a width of approximately 1-500 micrometers and a height of approximately 1. The portions of second material constitute extensions of the source and drain regions.