유기발광소자 및 그 제조방법
    1.
    发明公开
    유기발광소자 및 그 제조방법 无效
    有机发光显示器及其制造方法

    公开(公告)号:KR1020080028212A

    公开(公告)日:2008-03-31

    申请号:KR1020060093718

    申请日:2006-09-26

    Abstract: An organic light emitting display and a method for manufacturing the same are provided to improve trapping efficiency of a carrier by properly adjusting HOMOs(Highest Occupied Molecular Orbital) and LUMOs(Lowest Unoccupied Molecular Orbital) of a light emitting layer, a hole transporting layer, and an electron transporting layer, thereby improving luminous efficiency. An organic light emitting display includes a first electrode(A) formed on a substrate(SUB), a hole transporting layer(HTL) formed on the first electrode, a light emitting layer(EL) formed on the hole transporting layer, an electron transporting layer(ETL) formed on the light emitting layer, and a second electrode(C) formed on the electron transporting layer. The light emitting layer has a soluble hole transporting host, a soluble electron transporting host, and a soluble light emitting dopant. A difference of an HOMO level is less than 1eV between each of the hole transporting layer and the hole transporting host and the light emitting dopant but more than 0.5eV between each of the hole transporting layer and the hole transporting host and the electron transporting hoist. A difference of an LUMO level is less than 1eV between each of the electron transporting layer and the electron transporting host and the light emitting dopant but more than 0.5eV between each of the electron transporting layer and the electron transporting host and the hole transporting host.

    Abstract translation: 提供一种有机发光显示器及其制造方法,通过适当调整发光层的HOMO(最高被占用的分子轨道)和LUMO(最低未占分子轨道),空穴传输层等来提高载体的捕获效率, 和电子传输层,从而提高发光效率。 有机发光显示器包括形成在基板(SUB)上的第一电极(A),形成在第一电极上的空穴传输层(HTL),形成在空穴传输层上的发光层(EL),电子传输 形成在发光层上的层(ETL)和形成在电子传输层上的第二电极(C)。 发光层具有可溶性空穴传输性主体,可溶性电子输送性主体和可溶性发光掺杂剂。 空穴传输层和空穴传输主体和发光掺杂剂之间的HOMO能级的差异小于1eV,而在空穴传输层和空穴传输主体和电子传输提升机中的每一个之间的差异大于0.5eV。 每个电子传输层和电子传输主体和发光掺杂物之间的LUMO能级的差异小于1eV,而在每个电子传输层和电子传输主体和空穴传输主体之间大于0.5eV。

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