To provide a liquid crystal display device capable of preventing visual observer's eyes from being directly irradiated with infrared for protection of the visual observer's eyes,and capable of clearly detecting the orientation of the face, line of vision movement, and the like of the visual observer.SOLUTION: The liquid crystal display device is an LCD comprising: a liquid-crystal display panel 2; a rectangular transparent plate 1 arranged covering a display surface 2a of the liquid-crystal display panel; a light guide plate 4d provided facing an opposite display surface 2b of the liquid-crystal display panel 2; and a backlight device 4 emitting visible light 31 and infrared light 32 through the light guide plate 4d to the opposite display surface 2b. The transparent plate 1 includes an infrared light transmission part 1a on one longer side outside the liquid-crystal display panel 2, and an infrared light imaging device 20 is arranged more outward from the liquid-crystal display panel 2 in plan view.SELECTED DRAWING: Figure 1

    【課題】 視認者の目に赤外線が直接照射されないようにして視認者の目を保護することができ、また視認者の顔の向き、視線移動等を明瞭に検知できる液晶表示装置とすること。【解決手段】 液晶表示装置は、液晶表示パネル2と、その表示面2aを覆って配置されている矩形状の透明板1と、液晶表示パネル2の反表示面2bに対向して設けられた導光板4dを有し、可視光31および赤外光32を導光板4dから反表示面2bに照射するバックライト装置4と、を有するLCDであって、透明板1は、液晶表示パネル2の外側の一長辺部に赤外光透過部1aを有しており、平面視で液晶表示パネル2よりも外側に赤外光撮像装置20が配置されている。【選択図】 図1


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    Title :

    LIQUID CRYSTAL DISPLAY DEVICE


    Additional title:

    液晶表示装置


    Contributors:

    Publication date :

    2019-01-24


    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... / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES



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