The present invention relates to a variable transmittance optical laminate and a manufacturing method therefor, a smart window comprising same, and a door and window for an automobile and a building to which same is applied. The variable transmittance optical laminate comprises: a first polarizing plate; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate facing the first polarizing plate; a second transparent conductive layer formed on one surface of the second polarizing plate and facing the first transparent conductive layer; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, wherein at least one transparent conductive layer of the first transparent conductive layer and the second transparent conductive layer is formed in direct contact with any one of the first polarizing plate and the second polarizing plate, includes a conductive polymer, and has at least one value of 0 to 0.05 among crack density values calculated according to Equation 1 below at a tensile strain of greater than 1% and less than or equal to 10%. [Equation 1] ρ(ε) = ℓ(ε)/A (where ε is tensile strain (%), A is the area of an observation region (mm2), ρ(ε) is a crack density value of the transparent conductive layer calculated at the tensile strain ε, and ℓ(ε) is a crack area of the transparent conductive layer in the observation region A measured at the tensile strain ε (mm2).


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    Title :

    OPTICAL LAMINATE AND MANUFACTURING METHOD THEREFOR, SMART WINDOW COMPRISING SAME, AND DOOR AND WINDOW FOR AUTOMOBILE AND BUILDING USING SAME


    Additional title:

    OPTISCHES LAMINAT UND HERSTELLUNGSVERFAHREN DAFÜR, INTELLIGENTES FENSTER DAMIT SOWIE TÜR UND FENSTER FÜR AUTOMOBIL UND GEBÄUDE DAMIT
    STRATIFIÉ OPTIQUE ET SON PROCÉDÉ DE FABRICATION, FENÊTRE INTELLIGENTE LE COMPRENANT, ET PORTE ET FENÊTRE POUR AUTOMOBILE ET BÂTIMENT L'UTILISANT


    Contributors:

    Publication date :

    2025-02-05


    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 / E06B Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore , FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS







    OPTICAL LAMINATE, METHOD FOR MANUFACTURING SAME, SMART WINDOW COMPRISING SAME, AND VEHICLE AND BUILDING WINDOW OR DOOR EMPLOYING SAME

    KIM SUNG-SU / BAEK SUNG-HO / AHN HONG-JUN et al. | European Patent Office | 2023

    Free access