The invention discloses a large exit pupil display device, a display method, an expansion method and a vehicle display device. The display device is used for displaying a virtual image. Comprising a base, an image expander arranged on the base, a driving device for controlling the image expander to rotate and/or vibrate relative to the base, and an optical engine for providing an input image, the image expander comprises an optical waveguide plate, an input coupling element and an output coupling element, wherein the input coupling element and the output coupling element are arranged on the optical waveguide plate. The input coupling element is used for coupling input light into the optical waveguide plate to form waveguide light and enabling the waveguide light to be propagated towards the output coupling element through total reflection in the optical waveguide plate; and the output coupling element is used for coupling the waveguide light out of the optical waveguide plate to form output light. The image expander is controlled to rotate and/or vibrate through the driving device, so that the technical effect of expanding the image display area is achieved.

    本发明公开了大出瞳的显示设备、显示方法、扩展方法及车用显示装置,该显示设备用于显示虚拟图像,包括基座、设置在所述基座上的图像扩展器、控制所述图像扩展器相对所述基座旋转和/或振动的驱动装置和用于提供输入图像的光学引擎;所述图像扩展器包括光波导板、设置在所述光波导板上的输入耦合元件和输出耦合元件;所述输入耦合元件用于将输入光耦合进光波导板中形成波导光,并使波导光在光波导板中通过全反射朝向输出耦合元件传播;所述输出耦合元件用于将波导光耦合出光波导板形成输出光。本发明通过驱动装置控制所述图像扩展器旋转和/或振动,以达到扩大图像显示区域的技术效果。


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    Titel :

    Large exit pupil display device, display method, expansion method and vehicle display device


    Weitere Titelangaben:

    大出瞳的显示设备、显示方法、扩展方法及车用显示装置


    Beteiligte:
    JIANG HOUQIANG (Autor:in) / KALEVO LIVOLA TAPANI (Autor:in) / ZHU YISHENG (Autor:in)

    Erscheinungsdatum :

    2022-03-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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