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US 8,795,853 B2Granted
Organic electroluminescent element using iridium complex, display device and lighting device using iridium complex
AssigneeKonica Minolta, Inc.
InventorsTomohiro Oshiyama, Masato Nishizeki, Noboru Sekine
Life of this patent
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Abstract
A material for an organic EL element showing high light emission efficiency and high color purity of the emission light, an organic EL element, a lighting device and a displaying device each using the material.
Claims6
An organic electroluminescence element comprising:
- a light emission layer wherein the light emission layer comprises metal complex represented by the following Formula 4 or Formula 5, or an isomer thereof as a part of the structure thereof;
- in the above formula, A31, A32, A33, Y31, Y32, Y33,Y34, Y35 and Y36 are each a carbon atom or a nitrogen atom;
- m13 is iridium;
- and L5 and L6 are each an alkylene group,
- in the above formula, A41, A42, A43, Y41, Y,42, Y43,Y44, Y45 and Y46 are each a carbon atom or a nitrogen atom;
- M14 is Ir;
- and L7 and L8, are each an alkylene group.
4 more elements
An organic electroluminescence element comprising:
- a light emission layer wherein the light emission layer comprises a metal complex represented by the following Formula 6 or an isomer thereof as a part of the structure thereof;
- in the above formula, A51, A52 and A53 are each a carbon atom or a nitrogen atom;
- M15 is iridium;
- L9 and L10 are each an alkylene group.
1 more element
An organic electroluminescence element comprising:
- a light emission layer wherein the light emission layer comprises a metal complex represented by the follow Formula 7 or an isomer thereof as part of the structure thereof;
- in the above formula, A61 , A62 and A63 are each a carbon atom or a nitrogen atom;
- M16 is iridium;
- L11 and L12 are each an alkylene group.
1 more element
Dependencies are inferred from the claim text.