To provide a WSD device for a vehicle capable of more reducing power consumption and a calorific value in narrow area display for performing image display on only a part of a display part than those in large screen display for performing the image display in a range wider than that in the narrow area display.SOLUTION: The windshield display device includes a scanner unit 13 which resonantly vibrates a mirror part around a resonant scanning axis and forcibly vibrates the mirror part around a forced scanning axis orthogonal to the resonant scanning axis, to scan laser light and projects a video to a display part, to form a display image, and a controller 14 which applies a driving voltage to the scanner unit 13, to resonantly vibrate the mirror part and forcibly vibrates the mirror part. The controller 14 controls the vibration range of a forced vibration by changing the driving voltage, performs switching between a large screen display mode for setting image display to large screen display and a narrow area display mode for setting the image display to narrow area display, and more reduces the output of the laser light projected by a laser light source in the narrow area display mode than that in the large screen display.SELECTED DRAWING: Figure 1

    【課題】表示部の一部のみに画像表示を行う狭領域表示の場合に、それよりも広い範囲で画像表示を行う大画面表示の場合と比較して、消費電力が低減でき、発熱量を低下させることができる車両用のWSD装置を提供する。【解決手段】ミラー部を共振走査軸周りに共振振動させると共に共振走査軸に直交する強制走査軸周りに強制振動させることでレーザ光を走査し、表示部に映像を投射して表示画像を形成するスキャナユニット13と、スキャナユニット13に対して駆動電圧を印加することで、ミラー部を共振振動させると共に強制振動させるコントローラ14とを備える。コントローラ14は、駆動電圧を変化させることで強制振動の振動範囲を制御し、画像表示を大画面表示とする大画面表示モードと、狭領域表示とする狭領域表示モードとの切替えを行い、狭領域表示モードの際には大画面表示の際よりもレーザ光源が投射するレーザ光の出力を低下させる。【選択図】図1


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    Title :

    WINDSHIELD DISPLAY DEVICE


    Additional title:

    ウィンドシールドディスプレイ装置


    Contributors:

    Publication date :

    2021-05-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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 / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



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