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Composition and organic electroluminescent element comprising same

A composition and organic compound technology, applied in electrical components, electrical solid devices, circuits, etc., can solve the problems of easy crystallization of organic materials, affect the life and efficiency of devices, and short service life, and achieve extended operating life and good heat. The effect of improving stability and current efficiency

Active Publication Date: 2021-04-20
ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since its invention at the end of the 1980s, organic electroluminescent devices have been used in industries, such as display screens such as mobile phones, but the current OLED devices are restricted from wider application due to factors such as low efficiency and short service life, especially large screen display
At the same time, when the OLED device is operated with an applied voltage, it will generate Joule heat, which makes the organic material easy to crystallize and affects the life and efficiency of the device. Therefore, it is also necessary to develop stable and efficient organic electroluminescent materials.

Method used

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  • Composition and organic electroluminescent element comprising same
  • Composition and organic electroluminescent element comprising same
  • Composition and organic electroluminescent element comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Embodiment 1: the synthesis of compound 1

[0132]

[0133] Referring to the general synthetic route, NN-dimethyl-phenylamidinolithium was used as the lithium reagent, and the yield of the final product was 76%. Mass spectrum m / z, theoretical value 1161.54; measured value M+H: 1162.5.

Embodiment 2

[0134] Embodiment 2: the synthesis of compound 2

[0135]

[0136] Referring to the general synthetic route, NN-diethyl-phenylamidinolithium was used as the lithium reagent, and the yield of the final product was 70%. Mass spectrum m / z, theoretical value 1189.57; measured value M+H: 1190.5.

Embodiment 3

[0137] Embodiment 3: the synthesis of compound 3

[0138]

[0139]Referring to the general synthetic route, NN-diisopropyl-phenylamidinolithium was used as the lithium reagent, and the yield of the final product was 77%. Mass spectrum m / z, theoretical value 1189.57; measured value M+H: 1190.5.

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PUM

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Abstract

The invention belongs to the field of organic photoelectricity, and particularly relates to a composition containing an iridium metal complex and an organic compound and an organic electroluminescent element containing the composition, in particular to an organic electroluminescent diode, the structure of the iridium metal complex is shown as a formula (I), the structural formula (II) or (III) of the organic compound is shown in the specification. In the formula (I) of the iridium metal complex, (L^Z) is selected from formula (IV), and the organic compound shown in the formula (II) or (III) and the organic photoelectric element can be understood by referring to the specific description provided by the invention. The composition disclosed by the invention is applied to a light-emitting layer of an organic light-emitting diode, so that the current efficiency of a light-emitting element is improved, the driving voltage is obviously reduced, the service life is prolonged, and the composition has a good commercialization prospect.

Description

technical field [0001] The invention belongs to the field of organic electroluminescence, and in particular relates to a composition of an iridium metal complex and an organic compound, and an organic electroluminescence element comprising the composition. Background technique [0002] As a new type of display technology, organic electroluminescent elements have self-illumination, wide viewing angle, low energy consumption, high efficiency, thinness, rich colors, fast response, wide applicable temperature range, low driving voltage, flexible, bendable and The unique advantages of transparent display panels and environmental friendliness can be applied to flat panel displays and new generation lighting, and can also be used as LCD backlight. [0003] Since its invention in the late 1980s, organic electroluminescent devices have been used in industries, such as display screens such as mobile phones, but the current OLED devices are restricted from wider application due to fact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/54
CPCY02E10/549
Inventor 王子兴陈清泉吕伯彦吴空物赵晓宇
Owner ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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