Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
Japanese Patent JP3266573
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve light emitting luminance, and to lengthen the service life in an organic EL element.
SOLUTION: In an organic EL element having a structure by laminating a cathode layer 16, an electron implanting area 14, a light emitting area 12 and an anode layer 10 in order, an aromatic ring compound composed of carbon and hydrogen or an aromatic ring compound composed of carbon, hydrogen and oxygen and reducing dopant are included in the electron implanting area 14, and electron affinity of the electron implanting area is set to a value in a range of 1.8 to 3.6 eV, or an electron transporting compound and reducing dopant having a work function not more than 2.9 eV are included in the electron implanting area 14, and electron affinity of the electron implanting area is set to a value in a range of 1.8 to 3.6 eV.
Inventors:
Hiroaki Nakamura
Hosokawa
Kenichi Fukuoka
Hiroshi Tokairin
Hosokawa
Kenichi Fukuoka
Hiroshi Tokairin
Application Number:
JP25727598A
Publication Date:
March 18, 2002
Filing Date:
September 10, 1998
Export Citation:
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
H01L51/00; H01L51/30; H01L51/50; H01L51/52; (IPC1-7): H05B33/22; H05B33/14
Domestic Patent References:
| JP10120171A | ||||
| JP10270172A | ||||
| JP8259939A |
Other References:
【文献】1990年秋季第51回応用物理学会学術講演会予稿集、第3分冊、28a-PB-3、「積層薄膜の凝集状態
Attorney, Agent or Firm:
Kihei Watanabe
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