A control device of an ECM employs a current control method in place of a voltage control method in order to remove heat generation, and can stably provide a desired current and voltage to an ECM regardless of an input voltage. The control device of an ECM may include: an illuminance sensor unit configured to sense the brightness of light; an MCU configured to output a control signal corresponding to the brightness level of the sensed light; an ECM control unit configured to generate and output a constant current having a current value adjusted to correspond to the brightness level of the sensed light, in response to the control signal; and an ECM including a material to cause a chemical change in which the color thereof changes while the material is oxidized by the constant current, and having reflectivity adjusted to correspond to the adjusted current value of the constant current.


    Access

    Download


    Export, share and cite



    Title :

    ELECTROCHROMIC MIRROR CONTROL DEVICE


    Contributors:

    Publication date :

    2022-01-27


    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... / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



    ELECTROCHROMIC MIRROR

    KUBO WATARU | European Patent Office | 2020

    Free access

    Electrochromic mirror

    KUKITA TOMOYUKI | European Patent Office | 2017

    Free access

    ELECTROCHROMIC MIRROR

    KUKITA TOMOYUKI | European Patent Office | 2015

    Free access

    ELECTROCHROMIC MIRROR

    KUKITA TOMOYUKI | European Patent Office | 2016

    Free access

    ELECTROCHROMIC MIRROR

    KUBO WATARU | European Patent Office | 2018

    Free access