The invention relates to a function display (1) for selectively displaying symbols (18) which represent switch functions and/or switch states, in particular for a motor vehicle, having: an outer transparent or translucent cover layer (23) which defines a display surface (8); a light guide stack of at least two flat transparent or translucent light guides (13, 14, 15) which lie one over the other in a stacking direction and which are mutually spaced by a transparent or translucent layer made of an optically thinner material than that of the adjacently arranged light guides (13, 14, 15), preferably by an air gap (24), such that each of the light guides (13, 14, 15) has a main surface (H) facing a viewer (B) and in the case of at least one light guide (13, 14, 15), the main surface (H') facing away from the viewer (B) faces the next adjacent light guide (13, 14, 15) in the stacking direction; at least one light source (12) for each light guide (13, 14, 15), said light source being designed to couple light into each light guide (13, 14, 15) via an end face (S) of the corresponding light guide (13, 14, 15), wherein for each light guide (13, 14, 15), a light-refracting and/or light-scattering microstructure is provided in or on the light guide (13, 14, 15), said structure being designed to visibly display a backlit symbol (18) for the viewer (B) when the light source (12) is activated by means of the respective light being coupled into the light guide (13, 14, 15). The invention also relates to an operating element (10) which contains the function display and to a steering wheel (20).


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    Title :

    FUNKTIONSANZEIGE ZUR SELEKTIVEN ANZEIGE VON SCHALTFUNKTIONEN UND/ODER SCHALTZUSTÄNDEN REPRÄSENTIERENDEN SYMBOLEN


    Additional title:

    FUNCTION DISPLAY FOR SELECTIVELY DISPLAYING SYMBOLS WHICH REPRESENT SWITCH FUNCTIONS AND/OR SWITCH STATES
    AFFICHEUR DE FONCTIONS DESTINÉ À AFFICHER SÉLECTIVEMENT DES SYMBOLES QUI REPRÉSENTENT DES FONCTIONS DE COMMUTATEURS ET/OU DES ÉTATS DE COMMUTATEURS


    Contributors:

    Publication date :

    2022-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    German


    Classification :

    IPC:    F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein