| 摘要 |
PROBLEM TO BE SOLVED: To light a key member in a high brightness, to obtain a good click feeling, and to prevent a mis-operation of an adjacent switch part. SOLUTION: A lighted switch comprises an EL (electroluminescence) sheet 1, a transparent key member 3 provided on a plane 1b on an eliminating side of the EL sheet 1 and a switch sheet 4 provided opposite to a plane 1a on a non-emitting side of the EL sheet 1. On the plane 1a on the non-emitting side of the EL sheet 1, a projection part 2a for operation and a projection part 2b for preventing mis-operation are formed at a position at a predetermined distance from the projection part 2a, the projection part 2a is provided in a manner that a top part of a metal dome 41 being a switch part of the switch sheet 4 can be pushed. Since a pushing plane for pushing a metal dome 41 of the projection part 2a is formed in a flat plane shape, even if there is a more or less positioning error of a center position of the projection part 2a and metal dome 41 in assembly, a predetermined pushing force can be exerted on the switch part constantly. COPYRIGHT: (C)2004,JPO
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