To allow an observation of a display object even when a lighting control member is set in a reflection state.SOLUTION: A lighting control member 10 includes: a first lighting control unit 20 capable of adjusting a visible light transmission rate by application of voltage; a second lighting control unit 40 laminated on the first lighting control unit 20; and a display sheet 80 having a display object 85 to be displayed and arranged between the first lighting control unit 20 and the second lighting control unit 40. The first lighting control unit 20 includes: a first absorption type polarizing plate 21 and a second absorption type polarizing plate 22; a first liquid crystal unit 30 arranged between the first absorption type polarizing plate 21 and the second absorption type polarizing plate 22; and a reflection type polarizing plate 23 arranged between the second absorption type polarizing plate 22 and the first liquid crystal unit 30. The first liquid crystal unit 30 is capable of switching between a state of transmitting light while maintaining a polarization direction and a state of transmitting light while changing the polarization direction, by application of voltage.SELECTED DRAWING: Figure 2

    【課題】調光部材を反射状態とした際に、表示物が観察されなくする。【解決手段】調光部材10は、電圧の印加により可視光透過率を調節可能な第1調光ユニット20と、第1調光ユニット20に積層された第2調光ユニット40と、第1調光ユニット20と第2調光ユニット40との間に配置され、表示する表示物85を有する表示シート80と、を備える。第1調光ユニット20は、第1吸収型偏光板21及び第2吸収型偏光板22と、第1吸収型偏光板21及び第2吸収型偏光板22の間に配置された第1液晶ユニット30と、第2吸収型偏光板22及び第1液晶ユニット30の間に配置された反射型偏光板23と、を有する。第1液晶ユニット30は、電圧の印加によって、偏光方向を維持したまま光を透過させる状態と、偏光方向を変化させて光を透過させる状態と、を切り換え可能である。【選択図】図2


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    Title :

    LIGHTING CONTROL MEMBER AND SUN VISOR


    Additional title:

    調光部材、サンバイザ


    Contributors:
    MORITO HIDE (author) / OTSUKI JUNJI (author)

    Publication date :

    2022-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge




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