PROBLEM TO BE SOLVED: To provide a head-up display device that has no possibility of causing reduction in display contrast during light control.SOLUTION: A scan type display device includes: a laser light source 11 that emits laser light C; a liquid crystal element 14 that changes a polarization axis angle of the laser light C emitted from the laser light source 11; an MEMS scanner 21 that generates a display image D by scanning the laser light C emitted from the liquid crystal element 14; and a reflective polarization plate 100 that is arranged in an optical path of the laser light C from the liquid crystal display element 14 to the MEMS scanner 21. The reflective polarization plate 100 is disposed so as to be inclined with respect to an optical axis of the laser light C and has a function of causing the laser light C which cannot be transmitted through the reflective polarization plate 100 to be reflected in a given direction as reflection light M.

    【課題】 調光時における表示のコントラスト低下を招く虞のないヘッドアップディスプレイ装置を提供する。【解決手段】 レーザー光Cを発するレーザー光源11と、このレーザー光源11から出射したレーザー光Cの偏光軸角度を変化させる液晶素子14と、この液晶素子14が出射したレーザー光Cを走査して表示画像Dを生成するMEMSスキャナ21と、液晶素子14からMEMSスキャナ21へと至るレーザー光Cの光路中に配設される反射型偏光板100とを有し、反射型偏光板100は、レーザー光Cの光軸に対し傾斜するように配置され、反射型偏光板100を透過不可能なレーザー光Cを反射光Mとして所定の方向に反射させる機能を備えている。【選択図】図3


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    Title :

    SCAN TYPE DISPLAY DEVICE


    Additional title:

    走査型表示装置


    Contributors:

    Publication date :

    2015-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



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