a display switch unit is provided for a vehicle comprising at least one first and one second light guide plate with first and second light sources disposed at the edges . the light guide plates have switch symbols and proximity sensors having sensor structures . the first light guide plate and the second light guide plate are disposed on one another . respectively one sensor structure is assigned two switch symbols in both light guide plates . the material of the switch symbols is a plastic with light - sensitive nanoparticles , which is arranged distributed in the light guide plates in such a manner that under edge - side irradiation the switch symbols are visible illuminated in color and three - dimensionally in the light guide plates .