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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)
Application Number:
PCT/CN2004/001417
Publication Date:
July 14, 2005
Filing Date:
December 06, 2004
Export Citation:
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Assignee:
SOUTH CHINA UNI OF TECH (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:
WO2002074015A22002-09-19
Foreign References:
CN1275304A2000-11-29
CN1421475A2003-06-04
CN1236825A1999-12-01
CN1236489A1999-11-24
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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