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Iridium compound and organic electroluminescent device using the same

一种化合物、未取代的技术，应用在有机电致发光器件领域，能够解决低发光效率、缺少主材料、短寿命等问题

Active Publication Date: 2005-06-15
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these materials emit light in the sky-blue range and lack suitable host materials, resulting in very low luminous efficiency and short lifetime compared to red and green phosphorescent materials.

Method used

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  • Iridium compound and organic electroluminescent device using the same
  • Iridium compound and organic electroluminescent device using the same
  • Iridium compound and organic electroluminescent device using the same

Examples

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Embodiment Construction

[0024] An embodiment of the present invention provides an iridium compound of the following formula (1), which emits deeper blue light than conventional blue light-emitting molecules, and can be used as a blue phosphorescent dopant for full-color organic electroluminescence Light emitting device:

[0025]

[0026] in:

[0027]

[0028] and where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 and R 7 independently selected from a hydrogen atom, a cyano group, a hydroxyl group, a thiol group, a halogen atom, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C2-C30 alkenyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C6-C30 aralkyl, substituted or unsubstituted C6-C30 aryloxy, substituted or unsubstituted C2- C30 heteroaryl, substituted or unsubstituted C2-C30 heteroarylalkyl, substituted or unsubstituted C2-C30 heteroaryloxy, substituted or unsubstituted C5-C20 cycloal...

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Abstract

Provided are a blue phosphorescent compound and an organic electroluminescent device using the compound. When the blue phosphorescent compound is used in an organic electroluminescent device, it can emit deep blue light, improve color purity, and reduce power consumption.

Description

[0001] This application claims the priority of Korean Patent Application No. 2003-54778 (filed on August 7, 2003) and No. 2004-10414 (filed on February 17, 2004) of the Korean Intellectual Property Office. The entire disclosure content of is incorporated herein by reference. technical field [0002] The present invention relates to an organometallic compound containing iridium (Ir) and an organic electroluminescent device using the compound, more particularly to an iridium compound that can be used as a blue phosphorescent material, and an organic electroluminescent device using the compound device. Background technique [0003] Electroluminescent (EL) devices are known as self-luminous displays, which have the advantages of large viewing angles, high contrast and short response times. EL devices can be classified into inorganic EL devices or organic EL devices according to the material used as the emitting layer. Compared with inorganic EL devices, the advantages of organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50C07C49/92C07D213/79C07D217/26C07D231/12C07D233/54C07F15/00C09K11/06H05B33/14
CPCC07F15/0033C09K11/06C09K2211/1044C09K2211/185H05B33/14Y10S428/917
Inventor 朴秀珍李宽熙郑东弦申大烨权泰赫洪钟仁
Owner SAMSUNG DISPLAY CO LTD
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