有機発光素子 - Joled Co., Ltd.

Title:

有機発光素子

Document Type and Number:

Japanese Patent JP5778799

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To increase light extraction efficiency of blue light.SOLUTION: The organic light-emitting element includes: a reflection anode 2; a transparent cathode 8; an organic light-emitting layer 6 that outputs blue light; a first functional layer disposed between the reflection anode 2 and the organic light-emitting layer 6; a second functional layer disposed between the organic light-emitting layer 6 and the transparent cathode 8; and a coating layer disposed over the transparent cathode 8. The first functional layer is 0-316 nm in optical thickness. The layer in the second functional layer adjacent to the transparent cathode 8 is 0.1-0.7 in refractive index difference from that of the transparent cathode 8. The transparent cathode 8 is 0-70 nm in thickness, 2.0-2.4 in refractive index, and 0-168 nm in optical thickness. The layer in the coating layer adjacent to the transparent cathode is 0.1-0.7 in refractive index difference from that of the transparent cathode 8.

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Inventors:

Keiko Kurata
Tetsusei Matsusue
Kazuhiro Yoneda

Application Number:

JP2014008474A

Publication Date:

September 16, 2015

Filing Date:

January 21, 2014

Export Citation:

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