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    • 10. 发明申请
    • ORGANIC LIGHT-EMITTING ELEMENT
    • 有机发光元件
    • US20160155988A1
    • 2016-06-02
    • US14898645
    • 2014-06-04
    • Konica Minolta, Inc.
    • Takaaki KUROKI
    • H01L51/52H01L51/00
    • H01L51/5268H01L51/0097H01L51/5275H01L2251/5338H05B33/28Y02E10/549
    • The purpose of the present invention is to provide an organic light-emitting element that comprises an internal light extraction layer on a flexible transparent substrate, that has high luminous efficiency by means of light extraction, and that prevents the breakage and partial or complete separation of electrodes when the organic light-emitting element is repeatedly bent. The organic light-emitting element according to the present invention has an internal light extraction layer, a transparent electrode, and an organic light-emitting layer in this order on the flexible transparent substrate, wherein the value of the ratio (D) represented by formula 1 between the elastic modulus (EMI) of the surface of the internal light extraction layer and the elastic modulus (EMS) of the surface of the transparent electrode side of the transparent substrate is within the range of 100±30%. Formula 1 D (%)=(EMI/EMS)×100(%).
    • 本发明的目的是提供一种有机发光元件,其包括在柔性透明基板上的内部光提取层,其通过光提取具有高发光效率,并且防止断裂和部分或完全分离 有机发光元件反复弯曲时的电极。 根据本发明的有机发光元件在柔性透明基板上依次具有内部光提取层,透明电极和有机发光层,其中由式(D)表示的比率(D) 内部光提取层的表面的弹性模量(EMI)与透明基板的透明电极侧的表面的弹性模量(EMS)之比1在100±30%的范围内。 式1 D(%)=(EMI / EMS)×100(%)。