An operating unit according to one or more embodiments may include a base and switches on the base. The base according to one or more embodiments may include a first light emitter including at least one light guide plate finely processed with a pattern and having a light emitting surface facing a front surface of the operating unit, and a light emitting board on an end face of the at least one light guide plate in a thickness direction. The light emitting board applies light to the at least one light guide plate.