PROBLEM TO BE SOLVED: To provide a vehicle projection image display system that improves visibility of a projection image, having a reflection due to external light reflection suppressed.SOLUTION: A vehicle projection image display system 20 has: a windshield member 10 that is equipped with a transparent projection image display member 3; a projector 4 that projects an image to the projection image display member; a dashboard that is arranged below the windshield member; and a polarization plate that is arranged on the dash board. Transmittance of a visible light band of the projection image display member is equal to or greater than 75%, and a haze value is equal to or less than 20%. The polarization plate is not present on an optical path of the projection image display member and a projection image instrument. A linear line connecting a view point of an observer to an arbitrary point with respect to the windshield member, and a transmission axis of the polarization plate at a position where a plane surface formed by a vertical axis goes across the polarization plate fall within a range of -20° to +20° with respect to the plane surface.SELECTED DRAWING: Figure 8

    【課題】外光反射による映りこみを抑え、投映像表示の視認性を向上した車両用の投映像表示システムを提供する。【解決手段】透明な投映像表示用部材3を備えたウインドシールド部材10と、投映像表示用部材に像を投映するプロジェクター4があり、ウインドシールド部材の下部に配置されたダッシュボードがあり、さらにダッシュボード上に偏光板が配置されており、投映像表示用部材の可視光域の透過率が75%以上、ヘイズ値が20%以下であり、投映表示用部材と投映機材の光路上には偏光板がなく、観察者の視点と、ウインドシールド部材への任意の点を結ぶ直線と、鉛直軸のなす平面が偏光板と交わる位置の偏光板の透過軸は、平面に対して−20°〜+20°の範囲である車両用の投映像表示システム20。【選択図】図8


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    Title :

    VEHICLE PROJECTION IMAGE DISPLAY SYSTEM


    Additional title:

    車両用の投映像表示用システム


    Contributors:
    YANAI YUJIRO (author) / INOUE RIKIO (author) / NAGAI MICHIO (author) / YAMAMOTO AKIRA (author) / KANEIWA HIDEKI (author)

    Publication date :

    2018-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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