Organic electroluminescent compounds of Chemical Formula 1 : wherein the variables A1, A2, A3, A4, R1 and R2 are as defined therein in the specification. These compounds exhibit high luminous efficiency and excellent life property of material and are used in organic electroluminescent devices. An OLED having a very good operation life and improved consumption power is manufactured using these compounds.
化学式1的有机电致发光化合物:其中变量A1、A2、A3、A4、R1和R2如规范中所定义。这些化合物具有高发光效率和优异的材料寿命特性,并用于有机电致发光器件。使用这些化合物制造的OLED具有非常好的运行寿命和改善的功耗。