申请人:Nitto Denko Corporation
公开号:US09328094B2
公开(公告)日:2016-05-03
Some substituted biaryl ring systems may be useful in light-emitting devices, such as those comprising a light-emitting diode. For example, substituted bipyridinyl or substituted phenylpyridinyl may be useful in these devices. The substituted biaryl ring system may have at least two different substituents, including one on each ring on the biaryl system. The first substituent may include optionally substituted carbazolyl, optionally substituted diphenylamine, optionally substituted diphenylaminophenyl, and optionally substituted carbazolylphenyl. The second substituent may include optionally substituted benzimidazol-2-yl, optionally substituted benzoxazol-2-yl, and an optionally substituted benzothiazol-2-yl.
一些替代双芳基环系统可能在发光器件中有用,例如那些包括发光二极管的器件。例如,替代的双吡啶基或替代的苯基吡啶基可能在这些器件中有用。替代的双芳基环系统可能具有至少两种不同的取代基,包括在双芳基系统上的每个环上的一个。第一个取代基可以包括可选取代的卡巴唑基,可选取代的二苯胺基,可选取代的二苯胺基苯基和可选取代的卡巴唑基苯基。第二个取代基可以包括可选取代的苯并咪唑-2-基,可选取代的苯并噁唑-2-基和可选取代的苯并噻唑-2-基。