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    • 5. 发明授权
    • Organic electroluminescent display device
    • 有机电致发光显示装置及其制造方法
    • US07595586B2
    • 2009-09-29
    • US11289076
    • 2005-11-29
    • Jong-Seok OhYoon-Chang KimYoung-Woo SongJi-Hoon AhnSang-Hwan ChoSo-Young LeeJoon-Gu Lee
    • Jong-Seok OhYoon-Chang KimYoung-Woo SongJi-Hoon AhnSang-Hwan ChoSo-Young LeeJoon-Gu Lee
    • H05B33/22
    • H01L51/5262
    • An organic electroluminescent display device and a method of producing the same are provided. The organic electroluminescent display device includes: a substrate; and an organic electroluminescent unit formed on a surface of the substrate and including a first electrode, an organic layer and a second electrode sequentially deposited on the substrate, in which the organic electroluminescent display device includes a diffraction grating layer having low refractive gratings and high refractive gratings alternately formed parallel to the substrate, and a high refractive layer formed on the diffraction grating layer interposed between the substrate and the first electrode. According to the organic electroluminescent display device, the light coupling efficiency can be increased due to minimized voids and unevenness generated in the formation of a diffraction grating layer, optical losses due to a first electrode can be prevented due to a high refractive layer interposed between the diffraction grating layer and the first electrode to focus light distribution on the high refractive layer, and the light coupling efficiency can be maximized due to increased light distribution in the diffraction grating layer.
    • 提供一种有机电致发光显示装置及其制造方法。 有机电致发光显示装置包括:基板; 以及有机电致发光单元,其形成在所述基板的表面上并且包括依次沉积在所述基板上的第一电极,有机层和第二电极,其中所述有机电致发光显示装置包括具有低折射光栅和高折射率的衍射光栅层 交替地形成平行于衬底的光栅,以及形成在介于衬底和第一电极之间的衍射光栅层上的高折射层。 根据有机电致发光显示装置,由于在形成衍射光栅层时产生的空隙和不均匀性最小化,可以提高光耦合效率,所以可以防止由于第一电极引起的光损失, 衍射光栅层和第一电极,以将光分布聚焦在高折射层上,并且由于衍射光栅层中的光分布增加,光耦合效率可以最大化。