There are provided a reflection film, a windshield glass, and a head-up display system capable of suppressing formation of double images of a display image. The reflection film has a linearly polarized light reflection layer in which optically anisotropic layers and isotropic layers are laminated and a polarization converting layer, and the polarization converting layer satisfies any of conditions below.(A) The polarization converting layer is a retardation layer in which the front retardation is 30 nm to 200 nm and the angle between a slow axis direction and a direction of the transmission axis of the linearly polarized light reflection layer is 35° or less.(B) The polarization converting layer is a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x in the helical alignment structure and the film thickness y (unit µm) of the polarization converting layer satisfy all relational expressions below.0.1≤x≤1.00.5≤y≤3.03000≤(1560×y)/x≤50000


    Access

    Download


    Export, share and cite



    Title :

    REFLECTION FILM, WINDSHIELD GLASS, AND HEAD-UP DISPLAY SYSTEM


    Contributors:

    Publication date :

    2023-01-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    REFLECTION FILM, WINDSHIELD GLASS, AND HEAD-UP DISPLAY SYSTEM

    ANZAI AKIHIRO / ARITA SHUSUKE | European Patent Office | 2023

    Free access

    REFLECTION FILM, WINDSHIELD GLASS, AND HEAD-UP DISPLAY SYSTEM

    ANZAI AKIHIRO / ARITA SHUSUKE | European Patent Office | 2022

    Free access

    Reflection film, windshield glass, and head-up display system

    ANZAI AKIHIRO | European Patent Office | 2024

    Free access

    REFLECTION FILM, WINDSHIELD GLASS, AND HEAD-UP DISPLAY SYSTEM

    ANZAI AKIHIRO / ARITA SHUSUKE | European Patent Office | 2024

    Free access