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    • 2. 发明公开
    • LIGHT EMITTER
    • LICHTEMITTER
    • EP3139705A1
    • 2017-03-08
    • EP15786779.7
    • 2015-04-24
    • JX Nippon Oil & Energy Corporation
    • NISHIMURA, SuzushiSHIBANUMA, ToshihikoTORIYAMA, Shigetaka
    • H05B33/02G02B3/00G02B5/18H01L51/50H05B33/22
    • H01L51/5275G02B3/00G02B5/18H01L51/0096H01L51/50H01L51/5012H01L51/5209H01L51/5225H01L51/524H01L2251/5361H01L2251/55H01L2251/558H05B33/02H05B33/22
    • Provided is a light-emitting element capable of taking out emitted light efficiently to outside and securing sufficient light-emitting area. The light-emitting element 10 includes translucent substrate 11 having first and second surfaces, concavo-convex layer 12 having a concavo-convex pattern, first electrode layer 12, organic luminescent layer 14 having a light-emitting part, second electrode layer 15, and lens member 16 having a diameter D1. The concavo-convex layer, the first electrode layer, the organic luminescent layer, and the second electrode layer form a laminate in this order on the first surface side of the substrate, with the concavo-convex pattern arranged on the first electrode layer side of the concavo-convex layer. The substrate is provided with the lens member on the second surface, and the light-emitting part is a laminated region of a diameter D2 of the organic luminescent layer held between the first and second electrode layers, and the center of the light-emitting part is aligned concentrically to the center of the lens member. The ratio of the diameter D2 of the light-emitting part to the diameter D1 of the lens member is 0.7
    • 提供一种能够有效地将发射的光取出到外部并确保足够的发光面积的发光元件。 发光元件10包括具有第一和第二表面的透光性基板11,具有凹凸图案的凹凸层12,第一电极层12,具有发光部的有机发光层14,第二电极层15和 透镜部件16具有直径D1。 凹凸层,第一电极层,有机发光层和第二电极层在基板的第一表面侧依次形成层叠体,凹凸图案配置在基板的第一电极层侧 凹凸层。 基板在第二表面上设置有透镜构件,发光部是保持在第一和第二电极层之间的有机发光层的直径D2的层叠区域,发光部的中心 与透镜构件的中心同心对准。 发光部的直径D2与透镜部的直径D1的比例为0.7