To prevent a change in display luminance not desirable for an observer 3 for a sudden change in luminance of a background, and thereby can improve visibility of display information.SOLUTION: A display unit 10A displaying a virtual image 45 (one example of display information) visually recognized by an observer 3 in front of a movable body acquires, at a specific sampling time t, luminance information 450 indicating the luminance of a luminance detection area 300 (one example of peripheral area) including at least part of a display background area 350 (one example of display area) to be the background of the virtual image 45, and detects a change in luminance of the luminance detection area 300 on the basis of the acquired luminance information 450. When detecting a change in luminance, the display unit 10A determines display luminance information 500 indicating the display luminance of the virtual image 45 so that a delay time required for corresponding the display luminance of the virtual image 45 to the luminance of the luminance detection area 300 falls within an allowable delay time T or becomes shorter than the allowable delay time T, and displays the virtual image 45 by using the determined display luminance information 500.SELECTED DRAWING: Figure 11

    【課題】背景の急激な輝度変化に対して、観察者3にとって望ましくない表示輝度の変化を抑制することで、表示情報の視認性を向上させることができる。【解決手段】移動体の前方に観察者3が視認する虚像45(表示情報の一例)を表示させる表示装置10Aは、虚像45の背景となる表示背景領域350(表示領域の一例)の少なくとも一部を含む輝度検出領域300(周辺領域の一例)の輝度を示す輝度情報450を、特定のサンプリング時間tで取得し、取得した輝度情報450に基づいて、輝度検出領域300の輝度変化を検出する。そして、表示装置10Aは、輝度変化を検出した場合、虚像45の表示輝度を輝度検出領域300の輝度に対応させるまでの遅延時間が、遅延許容時間T以内または遅延許容時間Tより短くなるように、虚像45の表示輝度を示す表示輝度情報500を決定し、決定した表示輝度情報500を用いて、虚像45を表示させる。【選択図】図11


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    Title :

    DISPLAY UNIT, DISPLAY SYSTEM, MOVABLE BODY, DISPLAY LUMINANCE CONTROL METHOD, AND PROGRAM


    Additional title:

    表示装置、表示システム、移動体、表示輝度制御方法およびプログラム


    Contributors:

    Publication date :

    2019-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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