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2,7-bis-anthracene naphthalene compound, light emitting layer material, organic electroluminescent element, display device and lighting device

A naphthalene compound and luminescent layer technology, which is applied in luminescent materials, electrical components, organic chemistry, etc., can solve problems such as life characteristics of organic EL components with high luminous efficiency, and achieve the effects of long component life and low driving voltage

Active Publication Date: 2012-09-19
JNC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, there have been reports on anthracene derivatives as materials for the light-emitting layer of blue devices (Patent Document 1 to Patent Document 5 below, and Non-Patent Document 1 to Non-Patent Document 5 below). It is difficult to improve the lifetime characteristics of organic EL elements through high luminous efficiency if the light-emitting layer is formed using a material with a short light-emitting wavelength for the purpose of light emission.

Method used

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  • 2,7-bis-anthracene naphthalene compound, light emitting layer material, organic electroluminescent element, display device and lighting device
  • 2,7-bis-anthracene naphthalene compound, light emitting layer material, organic electroluminescent element, display device and lighting device
  • 2,7-bis-anthracene naphthalene compound, light emitting layer material, organic electroluminescent element, display device and lighting device

Examples

Experimental program
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Effect test

example

[0238] First, a synthesis example of the 2,7-bis-anthracenylnaphthalene compound used in the examples will be described below.

[0239]

[0240]

[0241]

[0242] First, under a nitrogen atmosphere, 48.1 g of naphthalene-2,7-diol and 380 ml of pyridine were put into a flask, and after cooling to 0° C., 203.1 g of trifluoromethanesulfonic anhydride was slowly added dropwise. Thereafter, the reaction solution was stirred at 0° C. for 1 hour, and then at room temperature for 2 hours. Next, water was added to the reaction solution, the target component was extracted with toluene, and the crude product obtained by concentrating the organic layer under reduced pressure was subjected to column purification using silica gel (solvent: heptane / toluene=6 / 1 (volume ratio)), Thus, 112.4 g (yield: 88%) of bis(trifluoromethanesulfonate)naphthalene-2,7-diyl ester was obtained as the first intermediate compound. The flow is shown in the following "Reaction 1".

[0243] Response 1

[...

example 1

[0308]

[0309] A glass substrate (manufactured by Optoscience Co., Ltd.) of 26 mm×28 mm×0.7 mm obtained by polishing ITO having a thickness of 180 nm by sputtering to 150 nm was used as a transparent support substrate. This transparent support substrate was fixed on the substrate holder of a commercially available vapor deposition apparatus (manufactured by Showa Vacuum Co., Ltd.), and then a molybdenum vapor deposition boat containing HI and a molybdenum vapor deposition boat containing NPD were attached. Boat, molybdenum vapor deposition boat containing compound (1-22) of the present invention, molybdenum vapor deposition boat containing BD1, molybdenum vapor deposition boat containing ET1, fluorine Lithium Fe (LiF) molybdenum vapor deposition boats and aluminum added tungsten vapor deposition boats.

[0310] The following layers were sequentially formed on the ITO film of the transparent support substrate. Depressurize the vacuum tank to 5×10 -4 Up to Pa, first, a hole...

example 2

[0326]

[0327] A glass substrate (manufactured by Optoscience Co., Ltd.) of 26 mm×28 mm×0.7 mm obtained by polishing ITO having a thickness of 180 nm by sputtering to 150 nm was used as a transparent supporting substrate. This transparent support substrate was fixed on the substrate holder of a commercially available vapor deposition apparatus (manufactured by Showa Vacuum Co., Ltd.), and then a boat for vapor deposition made of molybdenum containing HI and a boat for vapor deposition of molybdenum containing HT were attached. A boat, a molybdenum vapor deposition boat containing the compound (1-22) of the present invention, a molybdenum vapor deposition boat containing BD2, a molybdenum vapor deposition boat containing ET2, and a molybdenum vapor deposition boat containing 8 - A boat for vapor deposition made of molybdenum of lithium quinolate (Liq), a boat made of molybdenum added with magnesium, and a boat made of molybdenum added with silver.

[0328] The following laye...

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Abstract

The invention provides a 2,7-bis-anthracene naphthalene compound, a light emitting layer material, an organic electroluminescent element, a display device and a lighting device. The organic electroluminescent element has low voltage and excellent component life. The 2,7-bis-anthracene naphthalene compound obtained by substituting 2-anthracene and 7-anthracene by a specific anthracene derivative to obtain the 2,7-bis-anthracene naphthalene compound as the light emitting layer material, and furthermore the organic electroluminescent element is manufactured.

Description

technical field [0001] The present invention relates to a novel 2,7-bis-anthracenylnaphthalene compound and a material for a light-emitting layer containing it, and further relates to a kind of organic electroluminescent element (hereinafter, sometimes abbreviated as an illumination device or a display device such as a color display) suitable for use as a lighting device or a color display device. It is recorded as an organic EL (Electroluminescence) element or just abbreviated as an element). More specifically, the present invention relates to an organic electroluminescent device in which driving voltage, lifetime, and the like are improved by using a novel 2,7-bisanthracenylnaphthalene compound in a light-emitting layer. Background technique [0002] The organic EL element is a self-luminous light-emitting element, which is expected as a light-emitting element for display or illumination, and has been actively researched in recent years. In order to promote the practical ...

Claims

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Application Information

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IPC IPC(8): C07C15/28C09K11/06H01L51/54
CPCH10N10/853H10K85/631H10K85/615H10K50/171H10K50/16
Inventor 王国防小野洋平
Owner JNC CO LTD
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