16-08-2017 дата публикации
Номер: KR1020170093271A
Автор:
HAM, HO WAN,
AN, HYUN CHEOL,
KANG, KYONG MIN,
BAE, YU JIN,
KIM, DONG JUN,
MIN, BYUNG CHEOL,
HAN, JEONG WOO,
GIM, GEUN TAE,
LEE, HYUNG JIN,
ANN, JA EUN
Принадлежит:
Disclosed is an organic electroluminescent device having a charge generation layer which facilitates hole injection, is excellent in electron blocking properties, and has excellent driving voltage, efficiency and lifetime as well as fast hole mobility. The organic electroluminescent device comprises: a first electrode; a second electrode; and an organic material layer which is formed between the first electrode and the second electrode, and the organic material layer comprises a hole injection layer which includes a compound represented by chemical formula 1, a charge generation layer which includes a compound represented by chemical formula 2, and a hole transport layer which includes a compound represented by chemical formula 3. In chemical formula 1, Ar_1 and Ar_2 are each independently a C_10-C_50 aryl group, Ar_3 and Ar_4 are a C_6-C_30 aryl group, and L_1 is a C_6-C_30 aryl group. In chemical formula 2, R_1 to R_6 are a cyano group. In chemical formula 3, R_7 to R_13 are each independently ...
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