| 摘要 |
PROBLEM TO BE SOLVED: To provide a good electromagnetic wave shielding capability and enable realization of a light transmissive sharp image and easy manufacture, by pattern-etching a conductive film formed on a plate surface of a transparent substrate to form a conductive layer. SOLUTION: Two transparent substrates 2A and 2B are bonded and integrated by an adhesive layer 4, and a pattern-etched metal foil 3 is formed on the surface of the transparent substrate 2A on the side of the adhesive layer 4. Specifically, an adhesive film formed by mixing a cross-linking agent for thermal or optical curing into an ethylene copolymer such as EVA or the like and shaping the mixture into a sheet is provided between the transparent substrates 2A and 2B having the metal foil 3 formed thereon. After preliminary compression bonding is carried out by deaseration under a reduced pressure and with an increased humidity, the adhesive layer is cured and integrated by heating or light irradiation. By this process, an electromagnetic wave shielding light transmission window material can be easily manufactured. Thus, desired electromagnetic wave shielding property and light transmisstiveness can be obtained by selecting the shape of pattern etching of the conductive film. |
