| abstract |
PROBLEM TO BE SOLVED: To provide a transparent member for electromagnetic wave shielding having a mesh-like conductive pattern provided with excellent electromagnetic wave shielding properties and transparency and further visibility, and a method for producing the same. SOLUTION: The member is provided with Tt on a transparent substrate (1). The mesh conductive pattern is formed by sequentially laminating a copper thin film layer (100 to 2000 °) by sputtering or the like and a copper thick film layer (1 to 10 μm) by plating so as to be 50% or more. Has an electric resistance of 2 00 mΩ / □ or less. Further, the surface of the pattern is colored from brown to black by copper oxide and copper sulfide. For this member, for example, using a PET film as a base, a copper thin film layer is first formed, then a mesh pattern is exposed by a photolithography method, copper is electroplated on the exposed portion, and the remaining resist in a non-pattern portion is removed. Finally, the entire surface is chemically etched to remove the non-patterned copper thin film layer. |