Operating device with a luminous display and with a capacitive touch switch and a sensor element device (11, 111) for the capacitive touch switch, the sensor element means (11, 111) comprising: - a sensor element (15, 115) for the capacitive touch switch of the operating device, - a light guide (20, 120) for the illuminated display, which is made of light-transmitting material, the light guide (20, 120) having a light input area (22, 122) and a light output area, - a shielding material (26, 126) which surrounds the light guide (20, 120) except for the light-emitting region (22, 122) and the light-emitting region, the shielding material (26, 126) being opaque in combination with the light guide (20, 120), - at least one metallic sensor element (15, 115) consisting of at least one metal part, wherein: - the sensor element (11, 111) has a lower side and an upper side, - the sensor element (15, 115) extends from the bottom side of the sensor element means (11, 111) to the top side of the sensor element means (11, 111), - the sensor element device (11, 111) forms an integrated unit with light guide (20, 120), shielding material (26, 126) and sensor element (15, 115), in particular as an injection-moulded part, - the sensor element (15, 115) projects up to a plane of the underside of the sensor element device (11, 111) and at least partially defines the plane of the underside, - no part of the sensor element device (11, 111) projects downwards beyond the underside of the sensor element device (11, 111) or beyond the sensor element (15, 115), - the operating device has an operating surface under which the sensor element device (11, 111) is arranged, - the capacitive sensor element (15, 115) or one of the sections of the capacitive sensor element (15, 115) is placed with its upper side (16, 116) against an underside of the operating surface, - the operating device has a component carrier on which the sensor element device (11, 111) is arranged and electrically connected, - the component carrier has on its upper side at least one contact field on which the capacitive sensor element (15, 115) rests and is mechanically and electrically connected. - a sensor element (15, 115) for the capacitive touch switch of the operating device, - a light guide (20, 120) for the illuminated display, which is made of light-transmitting material, the light guide (20, 120) having a light input area (22, 122) and a light output area, - a shielding material (26, 126) which surrounds the light guide (20, 120) except for the light-emitting region (22, 122) and the light-emitting region, the shielding material (26, 126) being opaque in combination with the light guide (20, 120), - at least one metallic sensor element (15, 115) consisting of at least one metal part, - the sensor element (11, 111) has a lower side and an upper side, - the sensor element (15, 115) extends from the bottom side of the sensor element means (11, 111) to the top side of the sensor element means (11, 111), - the sensor element device (11, 111) forms an integrated unit with light guide (20, 120), shielding material (26, 126) and sensor element (15, 115), in particular as an injection-moulded part, - the sensor element (15, 115) projects up to a plane of the underside of the sensor element device (11, 111) and at least partially defines the plane of the underside, - no part of the sensor element device (11, 111) projects downwards beyond the underside of the sensor element device (11, 111) or beyond the sensor element (15, 115), - the operating device has an operating surface under which the sensor element device (11, 111) is arranged, - the capacitive sensor element (15, 115) or one of the sections of the capacitive sensor element (15, 115) is placed with its upper side (16, 116) against an underside of the operating surface, - the operating device has a component carrier on which the sensor element device (11, 111) is arranged and electrically connected, - the component carrier has on its upper side at least one contact field on which the capacitive sensor element (15, 115) rests and is mechanically and electrically connected.