| 摘要 |
PROBLEM TO BE SOLVED: To provide a selective shield characteristic film, as well as manufacturing method thereof, of good selective shield characteristic and industrial productivity by employing a specific means wherein a conductive layer such as a metal thin layer between two film layers is irradiated with laser beam so that a slit channel is formed with no damage on both films. SOLUTION: A laminated sheet, wherein a conductive inorganic thin layer (3) such as silver is provided between a first film layer (1) and a second film layer (2), is scanned with laser beam so that such a conductive inorganic thin layer (3) at a part where the laser beam is projected is removed, forming a slit channel (g). Thus, the conductive inorganic thin layer (3) is divided into specified-shaped regions. The laser beam is scanned in such a condition as neither the first film layer (1) nor the second film layer (2) is broken at formation of the slit channel (g).
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