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Spiro compound, preparation, organic electroluminescent diode and display device

A spiro compound and chemical bond technology, applied in the field of organic optoelectronics, can solve the problems of reducing the luminous efficiency of MR-TADFOLED devices, and achieve the effects of reducing the lighting voltage, improving the lifespan and improving the device efficiency.

Active Publication Date: 2021-09-21
ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the skeleton of MR-TADF molecules is a planar structure, molecular stacking is easy to occur under solid-state conditions, and the strong interaction between light-emitting molecules can easily cause aggregation-induced fluorescence quenching, thereby reducing the luminous efficiency of MR-TADF OLED devices.

Method used

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  • Spiro compound, preparation, organic electroluminescent diode and display device
  • Spiro compound, preparation, organic electroluminescent diode and display device
  • Spiro compound, preparation, organic electroluminescent diode and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0287] Embodiment 1: the synthesis of compound 1696

[0288]

[0289] Compound 1696

[0290] Referring to the above general synthetic procedure, the yield of the final product was 35%. Mass spectrum m / z, theoretical value 1104.56; measured value M+H: 1105.6.

Embodiment 2

[0291] Embodiment 2: the synthesis of compound 1697

[0292]

[0293] Compound 1697

[0294] Referring to the general synthetic procedure above, the yield of the final product was 31%. Mass spectrum m / z, theoretical value 980.53; measured value M+H: 981.6.

Embodiment 3

[0295] Embodiment 3: the synthesis of compound 1698

[0296]

[0297] Compound 1698

[0298] Referring to the above general synthetic procedure, the yield of the final product was 33%. Mass spectrum m / z, theoretical value 1090.54; measured value M+H: 1091.6.

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Abstract

The invention discloses a spiro compound, a preparation, an organic light-emitting diode comprising the spiro compound and a display device. The spiro compound has a structure as shown in formula (I) shown in the description. The spiro compound has good thermal stability, the spiro compound is used as an organic functional layer, especially as a light-emitting layer for manufacturing an organic light-emitting diode, wherein the current efficiency of the organic light-emitting diode is improved, the lighting voltage is reduced, and the service life of the organic light-emitting diode is greatly prolonged.

Description

technical field [0001] The invention relates to a spiro compound, in particular to a spiro compound and an organic electroluminescent diode comprising the compound, belonging to the field of organic photoelectricity. Background technique [0002] As a new type of display technology, organic light-emitting diode (OLED) has self-illumination, wide viewing angle, low energy consumption, high efficiency, thin, rich colors, fast response, wide applicable temperature range, low driving voltage, and flexible The unique advantages of flexible and 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 the end of the 1980s, organic electroluminescent devices have been applied in the industry. OLED luminescence is divided into two ways: fluorescence luminescence and phosphorescence. According to theoretical speculation, the singlet excited state and triplet excite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C09K11/06H01L51/50H01L51/54
CPCC07F5/027C09K11/06C09K2211/1055C09K2211/107C09K2211/1007H10K85/322H10K85/657H10K50/11Y02E10/549C07B2200/05H10K2101/30H10K50/12H10K2101/20H10K85/658
Inventor 赵晓宇申屠晓波吴空物
Owner ZHEJIANG HUADISPLAY OPTOELECTRONICS CO LTD
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