Title:
AN ORGANIC/MACROMOLECULAR LIGHT EMITTING DIODE
Document Type and Number:
WIPO Patent Application WO/2005/064702
Kind Code:
A1
Abstract:
The present invention relates to an organic/macromolecular light emitting diode, which is composed of cathode (1), light emitting layer (2), hole-injecting layer (3) anode (4) and substrate (5) by sequentially laminating. A electron-injecting layer (6) is provided between the cathode (1) and the light emitting layer (2), the said electron-injecting layer adopts the conjugated polymer which contains polarity unit of polarity group or ionicity group; the said cathode adopts high work-function metal that the workfunction is greater than or equal to 3.6eV. The present invention can obtain the organic/macromolecular light emitting diode that it has the same or higher quantum efficiency of low work-functional as the injecting electrode, its longtime stability becomes better, the organic/macromolecular light emitting diode is fit for the full-colored & fine resolution flat panel display device.
Inventors:
YONG CAO (CN)
WU HONGBIN (CN)
HUANG FEI (CN)
WANG DELI (CN)
WU HONGBIN (CN)
HUANG FEI (CN)
WANG DELI (CN)
Application Number:
PCT/CN2004/001417
Publication Date:
July 14, 2005
Filing Date:
December 06, 2004
Export Citation:
Assignee:
SOUTH CHINA UNI OF TECH (CN)
YONG CAO (CN)
WU HONGBIN (CN)
HUANG FEI (CN)
WANG DELI (CN)
YONG CAO (CN)
WU HONGBIN (CN)
HUANG FEI (CN)
WANG DELI (CN)
International Classes:
H01L51/30; H01L51/50; H01L51/52; (IPC1-7): H01L51/00; C09K11/06
Domestic Patent References:
WO2002074015A2 | 2002-09-19 |
Foreign References:
CN1275304A | 2000-11-29 | |||
CN1421475A | 2003-06-04 | |||
CN1236825A | 1999-12-01 | |||
CN1236489A | 1999-11-24 |
Attorney, Agent or Firm:
GUANGZHOU YUEGAO PATENT AGENT LIMITED CORPORATION (B C, 5/F, Dangxiao Building, Jianshe Roa, Guangzhou Guangdong 0, CN)
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