Title:
ベンゾピロール化合物を用いた有機電界発光素子
Document Type and Number:
Japanese Patent JP4906810
Kind Code:
B2
Abstract:
To provide an organic electroluminescent element that can be driven at low voltage and high luminous efficiency and can maintain a stable light-emitting characteristic over a long period.
A hole transporting layer includes a benzopyrrole derivative, and a hole injection layer includes the benzopyrrole derivative and an electron-accepting compound.
COPYRIGHT: (C)2010,JPO&INPIT
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Inventors:
Eiichi Nakamura
Yoshiharu Sato
Hayato Tsuji
Yokoi Yuuki
Yoshiharu Sato
Hayato Tsuji
Yokoi Yuuki
Application Number:
JP2008208762A
Publication Date:
March 28, 2012
Filing Date:
August 13, 2008
Export Citation:
Assignee:
Japan Science and Technology Agency
International Classes:
H01L51/50; C07D487/04; C09K11/06
Domestic Patent References:
| JP2006172763A |
Attorney, Agent or Firm:
Toshio Nishizawa