| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet switch module having simple construction for preventing the leakage of light to the outside.SOLUTION: The sheet switch module 10 includes a first light source 11, a sheet-like light guide 13 arranged adjacent to the first light source 11 for introducing the light of the first light source 11 from the side of one end face 13e and guiding the light of the first light source 11 to the face direction, and a sheet switch 20 arranged on the side of one face 13a of the light guide 13, wherein a light shielding member is provided on the end face facing the end face 13e of the light guide 13. In the case that the light guide 13 is partitioned into a first region 13A and a second region 13B, a through-hole 13c passing through the light guide 13 in the thickness direction is provided between the first region 13A and the second region 13B and the light shielding member 14 is arranged on the inner end face thereof. |
