ORGANIC EL DEVICE AND ELECTRONIC DEVICE

Title:

ORGANIC EL DEVICE AND ELECTRONIC DEVICE

Document Type and Number:

Japanese Patent JP2009064605

Kind Code:

A

Abstract:

To provide an organic EL device and an electronic device the lifetime of which is extended.

There are provided an anode layer 21 and a cathode layer 22, a red light-emitting layer 43, a blue light-emitting layer 45, and a green light-emitting layer 46 arranged between the anode layer 21 and the cathode layer 22, and an intermediate layer 44 arranged between the red light-emitting layer 43 and the blue light-emitting layer 45. The intermediate layer 44 contains a hole transport material, an electron transport material, and a light-emitting material, and at the same time, the energy level of at least one of the lowest unoccupied molecular orbit out of the materials constituting the intermediate layer 44, is higher than those of the red light-emitting layer 43 and the blue light-emitting layer 45.

Inventors:

MITSUYA MASAYUKI
YASUKAWA KOJI

Application Number:

JP2007229812A

Publication Date:

March 26, 2009

Filing Date:

September 05, 2007

Export Citation:

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Assignee:

SEIKO EPSON CORP

International Classes:

H05B33/12; G09F9/30; H01L27/32; H01L51/50

Domestic Patent References:

JP2005285708A

2005-10-13

Attorney, Agent or Firm:

Masahiko Ueyanagi
Osamu Suzawa
Kazuhiko Miyasaka

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