The invention provides a reflective film capable of suppressing ghosting of a display image, a windshield, and a head-up display system. The reflective film has a linearly polarized light reflective layer in which an optically anisotropic layer and an isotropic layer are laminated, and a polarized light conversion layer, and the polarized light conversion layer satisfies any one of the following conditions: (A) the polarized light conversion layer is a phase difference layer having a front retardation of 30-200 nm, and a rear retardation of 30-200 nm; and (B) the polarized light conversion layer is a layer obtained by immobilizing a helical orientation structure of a liquid crystal compound, and the pitch number x of the helical orientation structure and the film thickness y (unit [mu] m) of the polarized light conversion layer satisfy all of the following relational expressions: (i) 0.1 < = x < = 1.0, (ii) 0.5 < = y < = 3.0, (iii) 3000 < = (1560 * y)/x < = 50000.

    本发明提供一种能够抑制显示图像的重影的反射膜、挡风玻璃及平视显示器系统。反射膜具有将光学各向异性层和各向同性层层叠而成的直线偏振光反射层、以及偏振光转换层,偏振光转换层满足以下任一条件:(A)偏振光转换层是相位差层,正面延迟为30nm~200nm,且慢轴的方向与直线偏振光反射层的透射轴的方向所成的角度为35°以内(B)偏振光转换层是将液晶化合物的螺旋取向结构固定化而得的层,螺旋取向结构的节距数x及偏振光转换层的膜厚y(单位μm)满足下述所有关系式:(i)0.1≤x≤1.0(ii)0.5≤y≤3.0(iii)3000≤(1560×y)/x≤50000。


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    Title :

    Reflecting film, windshield and head-up display system


    Additional title:

    反射膜、挡风玻璃及平视显示器系统


    Contributors:

    Publication date :

    2022-11-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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...



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