| 摘要 |
PROBLEM TO BE SOLVED: To provide a switch system improved in visibility of a key top. SOLUTION: This switch system 1 comprising a transparent key top 4 having operation plate portions 5 with a polygonal shaped cross section, a panel 2 to which the plurality of operation plate portions are exposed, and a display 8 for radiating light to the key top has a light-reflection preventing surface 10 on a sidewall surface facing an adjacent key top. The light-reflection preventing surface is a grained surface formed by graining the sidewall surface in order to diffuse light from the display. The grained surface is coat with deep color material in order to restrain permeability form the adjacent key top to the grained surface. The grained surface is given deep color printing in order to restrain permeability from the adjacent key top to the grained surface. The light-reflection preventing surface is a thin plate surface where a two-color molded thin plate in the same shape as the sidewall surface is integrally provided on the sidewall surface without any air layer. The light- reflection preventing surfaces are formed on the entire remaining sidewall surfaces of the operation plate portions.
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