| 摘要 |
PROBLEM TO BE SOLVED: To provide a membrane sheet which can absorb a torsional stress, a tensile stress or a compressive stress of a membrane sheet caused by fixing a keyboard to a frame ground, and can easily connect shield patterns formed on the surfaces of an upper and a lower sheets. SOLUTION: The membrane sheet 1 for constituting a membrane switch has a band part 10 on which a shield pattern is formed. The band part 10 is isolated from the membrane sheet by a slit S. In the band part 10, the shield pattern is conductively connected with a frame ground wire by a screw 4, and simultaneously the band part 10 is fixed to the keyboard substrate.
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