A laminated pane arrangement has a functional element based on liquid crystals, wherein the optical properties of the functional element and an electrical resistance heater of at least one flat electrode are controlled by two different AC voltages. In accordance with a first aspect, the functional element is contacted on two opposite sides by the AC voltages. The AC voltages differ in maximum amplitude, but have the same frequency. In accordance with a second aspect, the functional element is controlled by an AC voltage. At least one flat electrode is heated by an additional AC voltage of greater frequency. A fault in the control of the optical properties of the functional element is prevented by high-pass filters.


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    Title :

    LAMINATED PANE ARRANGEMENTS HAVING AN ELECTRO-OPTICAL FUNCTIONAL ELEMENT


    Contributors:

    Publication date :

    2022-03-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge



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