Patent ID: 6207266
Filing Date: 2001-03-27
Classification: H01J,H05K,Y10T

Abstract:
A method for making an electromagnetic shielding bonding film, comprising:forming geometrically patterned electroconductive material having a line width of 40 .mu.m or less, a line spacing of 200 .mu.m or more, and a line thickness of 40 .mu.m or less over a substantially transparent base film, the geometric pattern providing an aperture ratio of 80% or more;coating a bonding agent composition over a part or an entirety of at least one side of said base film, wherein a difference in the refraction index between said transparent base film and the bonding layer formed by said coated bonding agent is 0.14 or less;said base film being prepared as a roll web, and at least most of said steps are carried out in a continuous manner.