FIELD: electric engineering; lighting.
SUBSTANCE: electroluminescent coating (7) for lighting of switch, in which transparent protective film (8), transparent electrode layer (9), light emitting layer (10), dielectric layer (11) and back electrode layer (12) are installed sequentially from the light emitting side. Transparent protective film (8) has the thickness from 10 mcm to 60 mcm. Transparent electrode layer (9) is made of conducting polymer. Electroluminescent coating (7) may defer wires breakdown or impossibility to light up because of key contact force, etc. without deterioration of reliability and sensation of key switch flick. Electroluminescent coating (7) is installed, for instance, between the surface (1) of key and unit (2) of switch mechanism and serves as source of lighting for the top part (1) of key.
EFFECT: more efficient lighting is achieved.
15 cl, 3 dwg
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