| 摘要 |
PROBLEM TO BE SOLVED: To provide an illumination type membrane switch unit which eliminates the necessity of a voltage step-up circuit nor a dedicated power supply for lighting.SOLUTION: In a membrane switch unit 10 with an illumination function to which a plurality of light sources configured by a pair of sheets are arranged, a plurality of fixed contact points 12a each having a wiring part 12g are provided to a lower membrane sheet 12, and a plurality of movable contact points 11a formed independently are provided to an upper membrane sheet 11. A plurality of white LEDs 13 (light sources) are provided to the upper membrane sheet 11 where there are no wires between the movable contact points 11a. Thereby, since a wiring path can be provided freely, the plurality of white LEDs 13 connected in parallel with the power supply can be easily assembled. Since the plurality of white LEDs 13 are connected in parallel with the power supply, the plurality of white LEDs 13 can be lightened without using a voltage step-up circuit nor a dedicated power supply for lighting. |
