公开(公告)号：WO2014204464A1

公开(公告)日：2014-12-24

申请号：PCT/US2013/046802

申请日：2013-06-20

Applicant: UNIVERSAL DISPLAY CORPORATION ,  HODOGAYA CHEMICAL CO., LTD.

Inventor： YAMAMOTO, Hitoshi ,  ADAMOVICH, Vadim ,  WEAVER, Michael, S. ,  YOKOYAMA, Norimasa ,  KASE, Kouki ,  KANDA, Daizo ,  OHKUMA, Hiroshi ,  NAGAOKA, Makoto

IPC: H01L51/54 ,  H05B33/14

CPC classification number: H05B33/20 ,  H01L51/0054 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5096 ,  H01L2251/308 ,  H01L2251/5384

Abstract: 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 R 1 , R 2 , R 3 , R 4 , R 5 , 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 fused polycyclic aromatic group, r 1 , r 4 , r 5 = 0, 1, 2, 3, or 4, r 2 , r 3 , r 6 ; = 0, 1, 2 or 3, n = 0 or 1, and Ar 1 , Ar 2 , and Ar 3 may be the same or different, substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted fused polycyclic aromatic group, deuterium substituted aromatic hydrocarbon group, deuterium substituted aromatic heterocyclic group, or deuterium substituted fused polycyclic aromatic group.

Abstract translation: 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4，r2，r3，r6; = 0,1,2或3，n = 0或1，Ar 1，Ar 2和Ar 3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香族基 氘代取代芳香族烃基，氘代取代芳香族杂环基或氘代取代稠合多环式芳香族基。