Carbazole compound and organic electroluminescence element
AssigneeHodogaya Chemical Co., Ltd.
InventorsKOUKI KASE, BYUNG-SUN YANG, HYUN-WOOK CHA, HEE-JAE KIM, YUTA HIRAYAMA, SHUICHI HAYASHI
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AssigneeHodogaya Chemical Co., Ltd.
InventorsKOUKI KASE, BYUNG-SUN YANG, HYUN-WOOK CHA, HEE-JAE KIM, YUTA HIRAYAMA, SHUICHI HAYASHI
Estimating the term…
(Objective) The objective of the present invention is to provide a compound having a high refractive index in the wavelength range of 450 nm~750 nm and a low extinction coefficient in the capping layer in order to improve light extraction efficiency of an organic EL element. (Solution) The present invention focuses on the fact that a specific carbazole compound has excellent thin film stability and durability, and its refractive index can be improved by adjusting the molecular structure, and by designing a molecule and using it as a material for a capping layer, obtains an organic EL element having excellent luminous efficiency.
-12. (canceled)
A carbazole compound represented by the following general formula (C):
Dependencies are inferred from the claim text.