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US 2003/0165711 A1Published application
Novel organometallic luminescent materials and organic electroluminescent device containing same
AssigneeNessdisplay Co., Ltd.
InventorsYoungkyoo Kim, Jae-Gyoung Lee
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Abstract
An organometallic luminescent material comprising the compound of formula (I) of the present invention can emit pure blue light and have high thermal stability: 1 wherein, M1 is a monovalent or tetravalent metal selected from the group consisting of Li, Na, K, Zr, Si, Ti, Sn, Cs, Fr, Rb, Hf, Pr, Pa, Ge, Pb, Tm and Md; R is hydrogen or C1-10 alkyl; B is O, S, Se or Te; D is O or S; and n is an integer ranging from 1 to 4.
Claims4
An organometallic luminescent material comprising a compound of formula (I):
- 6
- wherein,
- M1 is a monovalent or tetravalent metal selected from the group consisting of Li, Na, K, Zr, Si, Ti, Sn, Cs, Fr, Rb, Hf, Pr, Pa, Ge, Pb, Tm and Md;
- R is hydrogen or C1-10 alkyl;
- B is O, S, Se or Te;
- D is O or S;
- and
- n is an integer ranging from 1 to 4.
5 more elements
Dependencies are inferred from the claim text.