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Iridium complex compound, composition containing iridium complex compound, organic electroluminescent element, display device and lighting device

A coordination compound and bonding technology, applied in the fields of display devices and lighting devices, can solve the problems of cumbersome evaporation process, poor productivity, and difficulty in increasing the size of the display panel.

Inactive Publication Date: 2015-04-22
MITSUBISHI RAYON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, devices are usually produced by laminating multiple layers such as a light-emitting layer, a charge injection layer, and a charge transport layer. Therefore, in the vacuum deposition method, the deposition process becomes cumbersome and the productivity is poor. In addition, lighting, It is extremely difficult to increase the size of the panel of the display

Method used

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  • Iridium complex compound, composition containing iridium complex compound, organic electroluminescent element, display device and lighting device
  • Iridium complex compound, composition containing iridium complex compound, organic electroluminescent element, display device and lighting device
  • Iridium complex compound, composition containing iridium complex compound, organic electroluminescent element, display device and lighting device

Examples

Experimental program
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Effect test

Embodiment 1

[0376] Measure 1.5 mg of compound D-1 from a brown sample bottle, add phenylcyclohexane to make 100 mg, completely dissolve compound D-1, and prepare a composition containing compound D-1 (solid content concentration: 1.5% by weight) . The prepared composition was placed in a dark place at a room temperature of about 15-20° C., and the time until solid precipitation was measured. Precipitation of a solid was confirmed visually using a 10-fold magnifying glass. The results are summarized in Table 1.

Embodiment 2～3、 comparative example 1

[0378] In Example 1, except having used the iridium complex shown in Table 1 instead of Compound D-1, the preparation of the composition was carried out similarly to Example 1, and the time until solid content was precipitated was measured. The results are summarized in Table 1.

Embodiment 4

[0388] The organic electroluminescence element was produced by the method shown below.

[0389]

[0390] A sample obtained by depositing an indium tin oxide (ITO) transparent conductive film with a thickness of 70 nm on a glass substrate (manufactured by GEOMATEC Co., Ltd., sputter film-formed product) was formed into a width of 2 mm using ordinary photolithography and hydrochloric acid etching. The stripe pattern forms the anode. After the patterned ITO substrate is cleaned in the order of ultrasonic cleaning with aqueous surfactant solution, water washing with ultrapure water, ultrasonic cleaning with ultrapure water, and water washing with ultrapure water, it is dried with compressed air, and finally UV ozone cleaning. This ITO functions as a transparent electrode.

[0391] Next, a hole injection layer was formed by a wet film-forming method under the following conditions. Use the polymer compound with aromatic amino group of following formula (PB-1), the polymer compo...

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Abstract

The purpose of the present invention is to provide: an iridium complex compound which emits red light; a composition which contains the iridium complex compound and a solvent; an organic electroluminescent element which is produced using the compound or the composition and has a long service life and excellent electrical durability; and a display device and a lighting device, each of which uses the organic electroluminescent element. The present invention relates to an iridium complex compound which has a 2-phenyl quinazoline skeleton and a specific substituent.

Description

technical field [0001] The present invention relates to an iridium coordination compound, an iridium coordination compound that emits red light, a composition containing the compound, an organic electroluminescent element, and a display device and an illuminating device containing the organic electroluminescent element. Background technique [0002] In recent years, various electronic devices using organic electroluminescent elements (hereinafter, sometimes referred to as "organic EL elements"), such as organic EL lighting and organic EL displays, have been put into practical use. Since organic EL elements have low applied voltage, low power consumption, are surface-emitting, and can emit light in three primary colors, they are being actively studied for applications in lighting and displays. Therefore, improvement of luminous efficiency is required. [0003] As an improvement in luminous efficiency, for example, it has been proposed to use a phosphorescent light-emitting m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C09K11/06H01L51/50
CPCH01L51/0085C09K2211/1033C09K2211/1007C09K2211/1029C09K11/06C07F15/0033C09K2211/1037C09K2211/1044C09K2211/185H01L51/5016H10K85/342H10K50/11H10K2101/10H10K59/00C09K11/025
Inventor 石桥孝一长山和弘小松英司饭田宏一朗
Owner MITSUBISHI RAYON CO LTD
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