OLED device with certain fluoranthene light-emitting dopants
    8.
    发明授权
    OLED device with certain fluoranthene light-emitting dopants 有权
    OLED器件与某些荧蒽发光掺杂剂

    公开(公告)号:US08420229B2

    公开(公告)日:2013-04-16

    申请号:US11924629

    申请日:2007-10-26

    IPC分类号: H01L51/54

    摘要: An OLED device comprising a cathode, an anode, and having therebetween a light emitting layer and an electron-injecting layer, where (a) the light emitting layer contains a host and up to 50 volume % of a light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus; and (b) the electron-injecting layer being located between the cathode and the light-emitting layer contains an organic alkali metal compound. It provides reduced drive voltage, operational stability and luminance of OLED devices.

    摘要翻译: 一种OLED器件,包括阴极,阳极,并且在其间具有发光层和电子注入层,其中(a)发光层含有主体和至多50体积%的发光荧蒽化合物,其具有 没有芳环的7,10-二芳基取代的荧蒽核连接到荧蒽核上; 和(b)位于阴极和发光层之间的电子注入层含有有机碱金属化合物。 它提供降低的驱动电压,操作稳定性和OLED器件的亮度。

    Organic element for low voltage electroluminescent devices
    9.
    发明授权
    Organic element for low voltage electroluminescent devices 有权
    低电压电致发光器件的有机元件

    公开(公告)号:US07767317B2

    公开(公告)日:2010-08-03

    申请号:US11259586

    申请日:2005-10-26

    IPC分类号: H01L51/54 H01J1/62

    摘要: An OLED device comprises a cathode, a light emitting layer and an anode, in that order, and, having located between the cathode and the light emitting layer, a further layer containing; (a) 10 vol % or more of a carbocyclic fused ring aromatic compound, and (b) a cyclometallated complex represented by Formula (4′) wherein: Z and the dashed arc represent two or three atoms and the bonds necessary to complete a 5- or 6-membered ring with M; each A represents H or a substituent and each B represents an independently selected substituent on the Z atoms, provided that two or more substituents may combine to form a fused ring or a fused ring system; j is 0-3 and k is 1 or 2; M represents a Group IA, IIA, IIIA and IIB element of the Periodic Table; and m and n are independently selected integers selected to provide a neutral charge on the complex; and provided that the complex does not contain the 8-hydroxyquinolate ligand. Such devices exhibit reduce drive voltage while maintaining good luminance.

    摘要翻译: OLED器件依次包括阴极,发光层和阳极,并且位于阴极和发光层之间,还包含含有 (a)10体积%以上的碳环稠环芳香族化合物,(b)由式(4')表示的环金属络合物,其中:Z和虚线表示2个或3个原子,完成5 - 或6元环与M; 每个A表示H或取代基,并且每个B表示Z原子上独立选择的取代基,条件是两个或多个取代基可以结合形成稠环或稠环体系; j为0-3,k为1或2; M表示周期表的IA,IIA,IIIA和IIB族元素; 并且m和n是独立选择的整数,以在络合物上提供中性电荷; 并且条件是所述复合物不含有8-羟基喹啉配体。 这样的器件在保持良好亮度的同时表现出降低驱动电