Organic electroluminescent device

An electroluminescent device and luminescent technology, applied in the direction of electroluminescent light source, electric light source, luminescent material, etc., can solve the problems of no disclosed advantages or effects, and achieve the effect of excellent durability

Inactive Publication Date: 2010-02-10
UDC IRELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In WO 02 / 47440, organic compounds containing deuterium atoms are used, but WO 02 / 47440 does not disclose any advantages or effects when organic compounds are used in combination with phosphorescent metal complex materials
[0006] In JP-A-2005-48004, a carbazole material containing a deuterium atom and phosphorescent at normal temperature is used, but JP-A-2005-48004 does not disclose that when a carbazole material is used in combination with a phosphorescent metal complex material any advantage or effect

Method used

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Examples

Experimental program
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Embodiment

[0291] The present invention will be described in detail below in conjunction with the embodiments, but the present invention should not be construed as being limited thereto.

[0292] Synthetic example compounds:

[0293] By using a palladium catalyst or a copper catalyst, Heterocycles, Vol. 67, No. 1, 353-359 (2006), described in Heterocycles, Vol. 67, No. 1, 353-359 (2006), which contains carbazole-d8 and 4,4'-dibromobiphenyl containing deuterium atoms at positions 1 to 8 The exemplified compound (1-3) can be synthesized by linking.

[0294] The exemplified compound (4-3) can be synthesized by linking with 1,3-dibromobenzene in the same manner as the exemplified compound (1-3).

[0295] The exemplified compound can be synthesized by linking with 3,6-dibromo-9-phenylcarbazole described in Tetrahedron, Vol.54, No.42, 12707-12714 (1998) in the same manner as the exemplified compound (1-3) (12-3).

[0296] The exemplified compound (4-6) can be synthesized according to the following met...

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Abstract

An organic electroluminescent device is provided and includes: a pair of electrodes; and at least one organic layer between the pair of electrodes, the at least one organic layer including a light-emitting layer. The at least one organic layer contains a compound represented by formula (I) below, and the light-emitting layer contains a phosphorescent material of a platinum complex having a tetradentate ligand. Formula (I) R1 to R9 each independently represents a specific substituent.

Description

Technical field [0001] The present invention relates to an organic electroluminescence device (hereinafter also referred to as "organic EL device", "light emitting device" or "device") capable of converting electrical energy into light and emitting light. Specifically, the present invention relates to an organic electroluminescence device having excellent luminescence characteristics and durability. Background technique [0002] Recently, research and development on various display devices (organic light-emitting devices) using organic light-emitting materials has been increasingly active. Most importantly, the organic EL device has attracted public attention as a promising display device because it can emit high-intensity light at a low voltage. [0003] In addition, in recent years, the efficiency of the device has been improved by using phosphorescent materials. As phosphorescent materials, iridium complexes and platinum complexes are known (see US 6,303,238, WO 00 / 57676 and W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06H01L51/00H05B33/14
CPCC09K2211/1011H01L51/0072C09K2211/1029H01L51/0087H01L51/0094C09K11/06C09K2211/185C09K2211/1007H01L51/0043H01L51/004C09K2211/1088C09K2211/1059C09K2211/1014C09K2211/1044H01L51/0081H01L51/5016H10K85/141H10K85/151H10K85/346H10K85/324H10K85/40H10K85/6572H10K50/11H10K2101/10
Inventor 武田玲
Owner UDC IRELAND
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