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    • 7. 发明申请
    • PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES HAVING A HOLE TRANSPORTING COHOST MATERIAL IN THE EMISSIVE REGION
    • 具有渗透区域的孔传输共聚物的磷光体有机发光器件
    • US20140374728A1
    • 2014-12-25
    • US14372594
    • 2013-01-23
    • Universal Display CorporationHodogaya Chemical Co., Ltd.
    • Vadim AdamovichHitoshi YamamotoMichael S. WeaverNorimasa YokoyamaMakoto NagaokaNaoaki Kabasawa
    • H01L51/50H01L51/00
    • H01L51/5028C09K11/06C09K2211/1007C09K2211/1011C09K2211/1029C09K2211/1092H01L51/0052H01L51/0068H01L51/0072H01L51/5016H01L51/5024H01L51/5056H01L51/5096H01L2251/5384H05B33/10
    • An improved OLED includes an emissive layer disposed between a cathode and an anode where the emissive layer includes a multi-component host material and a phosphorescent emitter material. The host material includes at least a first host compound and a second host compound, where the first host compound is hole-transporting host compound having the general formula wherein R1, R2, R3, R4, R5, and R6 may be the same or different fluorine atom, chlorine atom, a deuterium atom, a cyano group, a trifluoromethyl group, a nitro group, linear or branched alkyl group (C1-C6), cyclo-alkyl group (C5-C10), linear or branched alkoxy group (C1-C6), cyclo-alkoxy group (C5˜C10), substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted condensed polycyclic aromatic group, r1, r4, r5=0, 1, 2, 3, or 4 r2, r3, r6;=0, 1, 2 or 3 n=0 or 1, and Ar1, Ar2, and Ar3 may be the same or different, substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted condensed polycyclic aromatic group, deuterium substituted aromatic hydrocarbon group, deuterium substituted aromatic heterocyclic group, or deuterium substituted condensed polycyclic aromatic group.
    • 改进的OLED包括设置在阴极和阳极之间的发射层,其中发射层包括多组分主体材料和磷光发射体材料。 主体材料至少包括第一主体化合物和第二主体化合物,其中第一主体化合物是具有以下通式的空穴传输性主体化合物:其中R 1,R 2,R 3,R 4,R 5和R 6可以相同或不同 氟原子,氯原子,氘原子,氰基,三氟甲基,硝基,直链或支链烷基(C1-C6),环烷基(C5-C10),直链或支链烷氧基(C1 -C 6),环烷氧基(C 5〜C 10),取代或未取代的芳香族烃基,取代或未取代的芳香族杂环基,取代或未取代的稠合多环芳基,r1,r4,r5 = 0,1,2,3, 或4r2,r3,r6; = 0,1,2或3n = 0或1,Ar1,Ar2和Ar3可以相同或不同,取代或未取代的芳香族烃基,取代或未取代的芳香族杂环基, 取代或未取代的稠合多环芳族基团,氘取代的芳族烃基 芴基,氘取代芳族杂环基或氘取代缩合多环芳基。