of the static electricity was 5 to 6 kv after the switch of the crt was turned on while the voltage was 15 kv or more at a moment after the switch was turned off and also when the finger touched the periphery of the filter an electric shock was felt a conductive net of 200 mesh consisting of 12 denier fibers which were coated with nickel by an electroless plating method the content of metal 0 8 g m 2 the surface resistance 1 0 u03c9 u25a1 was laminated as an intermediate layer between two hard vinylchloride resin plates to form a composite plate having a thickness of 1 5 mm thus the crt filter of such a shape as to be closely adhered onto the crt screen was produced so that the ito side was located on the crt side in a manner similar to example 2 except that the foregoing resin plate was used the hard coating process was executed to the surface of the filter on the side opposite to the crt screen in a manner similar to example 1 the thickness of hard coating layer 10 micron the light transmittance 45 the glossiness gs 60 u00b0 60 the pencil hardness 4h this crt filter was cut out so that the periphery thereof because slightly larger than the escutcheon of the crt of the size of 14 inches and was interposed between the escutcheon and the crt a hole of a diameter of 1 mm was formed in the edge of the crt.