Operating device with a luminous display and with a capacitive touch switch and a sensor element device for the capacitive touch switch, the sensor element means comprising: - a sensor element for the capacitive touch switch of the operating device , - a light guide for the illuminated display , which is made of light-transmitting material, the light guide having a light input area and a light output area , - a shielding material which surrounds the light guide except for the light-emitting region and the light-emitting region , the shielding material being opaque in combination with the light guide , - at least one metallic sensor element consisting of at least one metal part, wherein: - the sensor element has a lower side and an upper side , - the sensor element extends from the bottom side of the sensor element means to the top side of the sensor element means , - the sensor element device forms an integrated unit with light guide , shielding material and sensor element , in particular as an injection-moulded part, - the sensor element projects up to a plane of the underside of the sensor element device and at least partially defines the plane of the underside , - no part of the sensor element device projects downwards beyond the underside of the sensor element device or beyond the sensor element , - the operating device has an operating surface under which the sensor element device is arranged, - the capacitive sensor element or one of the sections of the capacitive sensor element is placed with its upper side against an underside of the operating surface , - the operating device has a component carrier on which the sensor element device is arranged and electrically connected, - the component carrier has on its upper side at least one contact field on which the capacitive sensor element rests and is mechanically and electrically connected. - a sensor element for the capacitive touch switch of the operating device , - a light guide for the illuminated display , which is made of light-transmitting material, the light guide having a light input area and a light output area , - a shielding material which surrounds the light guide except for the light-emitting region and the light-emitting region , the shielding material being opaque in combination with the light guide , - at least one metallic sensor element consisting of at least one metal part, - the sensor element has a lower side and an upper side , - the sensor element extends from the bottom side of the sensor element means to the top side of the sensor element means , - the sensor element device forms an integrated unit with light guide , shielding material and sensor element , in particular as an injection-moulded part, - the sensor element projects up to a plane of the underside of the sensor element device and at least partially defines the plane of the underside , - no part of the sensor element device projects downwards beyond the underside of the sensor element device or beyond the sensor element , - the operating device has an operating surface under which the sensor element device is arranged, - the capacitive sensor element or one of the sections of the capacitive sensor element is placed with its upper side against an underside of the operating surface , - the operating device has a component carrier on which the sensor element device is arranged and electrically connected, - the component carrier has on its upper side at least one contact field on which the capacitive sensor element rests and is mechanically and electrically connected. <EOS>