申请人:Universal Display Corporation
公开号:US10230060B2
公开(公告)日:2019-03-12
Electronic displays including organic light emitting diodes having an organic layer including a compound including a ligand having the formula:
is disclosed. In these formulas, each R1, R2, and R3 is independently selected from hydrogen, alkyl, and aryl; at least one of R1 and R2 is a branched alkyl containing at least 4 carbon atoms, where the branching occurs at a position further than the benzylic position; where R1 and R3 are mono-, di-, tri-, tetra-, or no substitutions; and R2 is mono-, di-, or no substitutions. Emissive layers including a host material doped with these heteroleptic iridium complexes are also disclosed.
包括有机发光二极管在内的电子显示器,其有机层包括一种化合物,该化合物包括具有以下式子的配位体:
的化合物的电子显示器。在这些式子中,每个 R1、R2 和 R3 都独立地选自氢、烷基和芳基;R1 和 R2 中至少有一个是含有至少 4 个碳原子的支化烷基,其中支化发生在比苄基位置更远的位置;其中 R1 和 R3 是单取代、二取代、三取代、四取代或无取代;R2 是单取代、二取代或无取代。此外,还公开了包括掺杂了这些杂环铱络合物的主材料的发射层。