Title:
COLOR-DEVELOPING COMPOUND FOR ELECTROLUMINESCENT DISPLAY ELEMENT AND ITS SYNTHESIS
Document Type and Number:
Japanese Patent JP3880152
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound that can realize low-voltage driving, high-speed response, excellent processability, area enlargement, coloration from blue to red in an electroluminescent display element by introducing electron- donating groups and electron-attaching groups into a polymer main chain.
SOLUTION: This is a color-developing compound for an electroluminescent display element bearing electron-donating groups (G1) and electron-attracting groups (G2) bonded to a polymer main chain. In a preferred embodiment, G1 and G2 are respectively an aromatic amino (G'1) and cyano (G'2) groups where G'1 and G'2 conjugate to each other and poly(3,6-N- alkylcarbazolylcyanophthalidene) represented by the formula (R is a 1-24C alkyl) is exemplified. This exemplified compound is prepared by allowing an N- alkylcarbazole to react with an oxyhalogenated phosphorus/dimethylcarmamide/ dihaloethane to form an N-alkyl-3,6-diformylcarbazole, followed by reaction of the carbazole product with 1,4-diphenylenediacetonitrile.
Inventors:
Asahi Park
Application Number:
JP26758797A
Publication Date:
February 14, 2007
Filing Date:
October 01, 1997
Export Citation:
Assignee:
SAMSUNG SDI Co., LTD.
International Classes:
C08G16/00; C09K11/00; C08G6/00; C08G61/12; C08G73/06; C08G83/00; C09K11/06; G09F9/33; H01B1/12; H01L33/26; H01L33/42; H01L51/00; H01L51/50; H05B33/14; (IPC1-7): C08G83/00; C08G6/00; C08G73/06; C09K11/06; G09F9/33; H01L33/00; H05B33/14; H05B33/22
Domestic Patent References:
| JP7300580A | ||||
| JP8165336A | ||||
| JP56086159A | ||||
| JP10036487A |
Foreign References:
| WO1996010598A1 |
Other References:
Jong-Wook Park,Synthesis and Luminescence of New conjugated Polymer,Polymer Preprints(American Chemical Society,Division of Polymer Chemistry) ,1995年,Vol.36,No.1,p.375-376
J.W.Park et al.,New Type ElectroLuminescent Polymers based on Carbazole Derivatives,Inorganic and Organic ElectroLuminescence,[Internatinal Workshop on Electroluminescence],8th,Berlin,,1996年 8月,235-238
J.W.Park et al.,New Type ElectroLuminescent Polymers based on Carbazole Derivatives,Inorganic and Organic ElectroLuminescence,[Internatinal Workshop on Electroluminescence],8th,Berlin,,1996年 8月,235-238
Attorney, Agent or Firm:
Shuichiro Kitamura