To provide a display device and a road surface projection device which can change reduction degree of a speckle noise according to content or the like of display image.SOLUTION: A display device comprises a light source part 110, a speckle reduction part 120, a light collection optical system 130, an optical path change part 140, a display light generation part 150, a projection lens part 160, a control part 170 and a speckle reduction part controlling part 180. The speckle reduction part controlling part 180 changes reduction degree of a speckle noise by the speckle reduction part 120 according to content or the like of display image.SELECTED DRAWING: Figure 1

    【課題】表示画像の内容等に応じて、スペックルノイズの低減度を変更することができる表示装置及び路面投影装置を提供する。【解決手段】光源部110と、スペックル低減部120と、集光光学系130と、光路変更部140と、表示光生成部150と、投射レンズ部160と、制御部170と、スペックル低減部制御部180とを備え、スペックル低減部制御部180は、表示画像の内容等に応じて、スペックル低減部120によるスペックルノイズの低減度を変更する。【選択図】図1


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    Title :

    DISPLAY DEVICE AND ROAD SURFACE PROJECTION DEVICE


    Additional title:

    表示装置及び路面投影装置


    Contributors:

    Publication date :

    2024-12-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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