PROBLEM TO BE SOLVED: To provide an HUD with improved display quality by reducing an effect of field curvature caused by an HUD optical system including a windshield without using a screen.SOLUTION: A flexible display device is employed as a display device 10 in an HUD unit 100. The flexible display device is held and fixed in a bent state in order to correct field curvature of a virtual image 60 caused by an effect of curvature of a concave mirror 50 and a windshield WS. A separate optical correction member is disposed in front of the bent display device 10 along a light path. The optical correction member has a curved surface curved in a direction different from that of the curvature of the display device 10. No screen is required since the display device 10 itself bears a function of correcting the field curvature.

    【課題】ウインドシールドやその他のHUD光学系により生じる「像面湾曲」の影響をスクリーンを用いることなく低減し、表示品位を改善するHUDを提供する。【解決手段】HUDユニット100内の表示デバイス10として、フレキシブル表示デバイスを採用した。凹面鏡50やウインドシールドWSの曲面の影響で生じる虚像60の像面湾曲を補正するように、フレキシブル表示デバイスを湾曲させた状態で保持し固定する。湾曲させた表示デバイス10の光路の前方に、他の光学補正部材を配置する。この光学補正部材は、表示デバイス10の湾曲状態とは異なる方向に湾曲した曲面を有する。表示デバイス10自体が像面湾曲を補正する機能を果たすので、スクリーンは不要になる。【選択図】図1


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    Title :

    IN-VEHICLE PROJECTION DISPLAY DEVICE


    Additional title:

    車両用投影表示装置


    Contributors:

    Publication date :

    2015-12-21


    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 / G09F DISPLAYING , Anzeigewesen / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



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