A backlight module and a head-up display (HUD) are provided. The backlight module includes a bottom plate and light-emitting sources arranged in an array on a surface of the bottom plate facing a transparent device to provide a light beam. A distance between the bottom plate and the transparent device in a direction of an optical axis is determined according to a total illuminance distribution of the light beam projected on the transparent device and locations where the light-emitting sources are arranged on the surface. The HUD includes a projection unit having a display panel and the above-mentioned backlight module and an optical sheet for reflecting the image beam to a user's eyes. The light beam penetrates the display panel to form the image beam. The transparent device of the backlight module is a display panel or a diffusion sheet located between the display panel and the light-emitting sources.


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    Title :

    BACKLIGHT MODULE AND HEAD-UP DISPLAY


    Contributors:

    Publication date :

    2019-08-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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 / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION



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