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    • 3. 发明申请
    • Highly efficient organic electroluminescent device
    • 高效的有机电致发光器件
    • US20060125382A1
    • 2006-06-15
    • US11338800
    • 2006-01-25
    • Sang-Dae KimYoon-Soo HanYoon-Heung Tak
    • Sang-Dae KimYoon-Soo HanYoon-Heung Tak
    • H01L51/50
    • H01L51/5012H01L51/5096Y10T428/24942
    • The present invention relates to a highly efficient organic electroluminescent device, and particularly to an organic electroluminescent device comprising an anode (a first electrode), a cathode (a second electrode), and one or more organic luminescent layers formed between the anode and the cathode, having an emission layer, wherein the emission layer comprises a doping region having host material and doping material, and a non-doping region having only host material as the hole blocking layer, which is in contact with the doping region, and a preparation method thereof. The organic electroluminescent device of the present invention is characterized in high efficiency, low cost, and improved process without forming the hole blocking layer by using a separate organic material.
    • 本发明涉及一种高效的有机电致发光器件,特别涉及包含阳极(第一电极),阴极(第二电极)和形成在阳极和阴极之间的一个或多个有机发光层的有机电致发光器件 具有发射层,其中所述发射层包括具有主体材料和掺杂材料的掺杂区域,以及仅具有与所述掺杂区域接触的主体材料作为空穴阻挡层的非掺杂区域,以及制备方法 其中。 本发明的有机电致发光元件的特征在于高效率,低成本和改进的工艺,而不用单独的有机材料形成空穴阻挡层。
    • 8. 发明授权
    • Compound for red organic EL device and organic EL device using the same
    • 用于红色有机EL器件的化合物和使用其的有机EL器件
    • US06451456B1
    • 2002-09-17
    • US09298838
    • 1999-04-26
    • Dong-uk KimYoon-Heung Tak
    • Dong-uk KimYoon-Heung Tak
    • H05B3314
    • C09K11/06H01L51/0051H01L51/0065H01L51/0067H01L51/0081H01L51/5012Y10S428/917
    • Compound for a red organic EL device and an organic EL device using the same, which can improve an luminance efficiency, an emitting light color and a device stability, the compound of the following structural formula: 1) Wherein G1 and G2 are identical or different electron withdrawing groups except a case when both of G1 and G2 are cyano groups, or G1 and G2 are electron withdrawing groups interconnected with a molecular chain to form a cyclic compound or a heterocyclic compound; 2) And, wherein the R1 or the R2 is any one selected from a substituted or unsubstituted alkyl group (with 1˜5 carbons), a substituted or unsubstituted aryl group and —CH═CH—A1, the chemical formula A1 being a 4-dialklyamino-phenyl, a 4-dialkylamino-2-alkoxyphenyl, a julolidine, an 8-alkoxy julolidine, a diphenylaminophenyl, a diphenylaminophenyl having an alkyl group substituted therein, or a diphenylaminophenyl having an alkoxy group substituted therein where the alkyl or the alkoxy has 1˜5 carbons; 3) And, wherein X is O, N, Se or S.
    • 用于红色有机EL器件的化合物和使用其的有机EL器件,其可以提高亮度效率,发光颜色和器件稳定性,具有以下结构式的化合物:1)其中G1和G2相同或不同 除了G1和G2都是氰基的情况之外的吸电子基团,或者G1和G2是与分子链互连以形成环状化合物或杂环化合物的吸电子基团; 2)其中R1或R2是 选自取代或未取代的烷基(具有1〜5个碳),取代或未取代的芳基和-CH = CH-A1,化学式A1为4-二烷基氨基 - 苯基,4-二烷基氨基-2 - 烷氧基苯基,多环节,8-烷氧基多环糊精,二苯基氨基苯基,其中取代有烷基的二苯基氨基苯基或其烷基或烷氧基具有1〜5个碳的烷氧基取代的二苯基氨基苯基; 3)并且w 这里X是O,N,Se或S.