申请人:SAMSUNG DISPLAY CO., LTD.
公开号:US10553796B2
公开(公告)日:2020-02-04
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, the electron transport region including an electron auxiliary layer, wherein the hole transport region includes at least one copolymer selected from i) a first copolymer of a first compound and a second compound and ii) a second copolymer of a third compound and a fourth compound, wherein the first compound and the second compound are each independently selected from compounds represented by Formula 1, and the third compound and the fourth compound are each independently selected from compounds represented by Formula 2, and wherein the electron auxiliary layer includes a metal oxide.
一种有机发光器件包括第一电极; 面向第一电极的第二电极; 位于第一电极和第二电极之间的发射层; 位于第一电极和发射层之间的空穴传输区域;和发射层与第二电极之间的电子传输区域,电子传输区域包括电子辅助层,其中空穴传输区域包括至少一种选自 i) 第一化合物和第二化合物的第一共聚物和 ii) 第三化合物和第四化合物的第二共聚物的共聚物,其中第一化合物和第二化合物各自独立地选自式 1 所代表的化合物,第三化合物和第四化合物各自独立地选自式 2 所代表的化合物,电子辅助层包括金属氧化物。