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A green light host material, organic electroluminescent device and electronic display device

A main material, green light technology, applied in the field of green light main materials, organic electroluminescent devices and electronic display equipment, to achieve good solubility, reduce power consumption, and high thermal stability

Active Publication Date: 2022-04-19
NANJING TOPTO MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the main luminescent material of green light can basically meet the performance requirements, the improvement of its structure and performance is still a research hotspot.

Method used

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  • A green light host material, organic electroluminescent device and electronic display device
  • A green light host material, organic electroluminescent device and electronic display device
  • A green light host material, organic electroluminescent device and electronic display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]

[0047] The specific synthesis method of the green light host material (1) is as follows:

(1)

[0048]

[0049] Compound 1 (1eq, 314.76g / mol, 31.77mmol, 10.0g), compound 2 (2.1eq, 122.05g / mol, 66.72mmol, 8.14g), tetrakis (triphenylphosphine) palladium (0.05eq, 1155.58g / mol, 1.59mol, 1.84g) and potassium carbonate (1.6eq, 138.21g / mol, 50.83mol, 7.03g) were placed in a 300ml round bottom flask, to which was added toluene (100ml, with the v / m of compound 1 =10), ethanol (10ml, v / m=1 with compound 1) and water (50ml, v / m=5 with compound 1), the mixture was heated to reflux and stirred for 12h. After the reaction was complete, the reactor Cool to room temperature, filter, wash the filter cake with water and dry it, then add it to toluene and heat up to reflux for boiling and refining for 1h, after hot filtration, the filter cake is dried to obtain compound 3 (8.95g, yield 90.6%), MS ( EI): 311 (M+).

(2)

[0050]

[0051] Compound 3 (1eq, 311g / mol, 25.72mmol,...

Embodiment 2

[0053]

[0054] The specific synthesis method of the green light host material (2) is as follows:

[0055] Step 1 is basically the same as Embodiment 1, and all the other steps are as follows

(2)

[0056]

[0057] Compound 3 (1eq, 311g / mol, 25.72mmol, 8.0g), compound 5 (1.1eq, 596.23g / mol, 28.29mmol, 16.87g), tetrakis (triphenylphosphine) palladium (0.05eq, 1155.58g / mol, 1.29mol, 1.49g) and potassium carbonate (1.6eq, 138.21g / mol, 41.15mol, 5.69g) are placed in the round bottom flask of 300ml, add toluene (80ml, the v / m= 10), ethanol (8ml, v / m=1 with compound 3) and water (40ml, v / m=5 with compound 3), heat the mixture to reflux and stir the reaction for 12h, after the reaction is completed, the reactor is cooled to room temperature, filter, wash the filter cake with water and dry it, then add it to toluene and heat it up to reflux, cook and refine it for 1 hour, after hot filtration, dry the filter cake to obtain the green light main material (2) (16.84g, yield 83.6...

Embodiment 3

[0059]

[0060] The specific synthesis method of the green light host material (3) is as follows:

[0061] Step 1 is basically the same as Embodiment 1, and all the other steps are as follows

(2)

[0062]

[0063] Compound 3 (1eq, 311g / mol, 25.72mmol, 8.0g), compound 6 (1.1eq, 686.24g / mol, 28.29mmol, 19.41g), tetrakis (triphenylphosphine) palladium (0.05eq, 1155.58g / mol, 1.29mol, 1.49g) and potassium carbonate (1.6eq, 138.21g / mol, 41.15mol, 5.69g) are placed in the round bottom flask of 300ml, add toluene (80ml, the v / m= 10), ethanol (8ml, v / m=1 with compound 3) and water (40ml, v / m=5 with compound 3), heat the mixture to reflux and stir the reaction for 12h, after the reaction is completed, the reactor is cooled to room temperature, filter, wash the filter cake with water and dry it, then add it to toluene and heat it up to reflux, cook and refine it for 1 hour, after hot filtration, dry the filter cake to obtain the green light main material (3) (18.50g, yield 82.4...

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Abstract

The invention discloses a green light main material, an organic electroluminescent device and an electronic display device, and relates to the field of organic electroluminescent materials. Compared with the existing materials, the starting voltage of the luminescent device is reduced to a certain extent, the power consumption is reduced, the luminous efficiency and luminous life are significantly improved, and the green color saturation of the device is improved to a certain extent, and the color is more vivid .

Description

technical field [0001] The invention relates to the field of organic electroluminescence materials, in particular to a green light main body material, an organic electroluminescence device and an electronic display device. Background technique [0002] In 1987, Deng Qingyun of Kodak Company first developed an organic light-emitting diode (OLED) device with practical value and low driving voltage (Alq as the light-emitting layer). In 1990, Burroughes and his collaborators successfully researched the first polymer EL (PLED) (PPV as the light-emitting layer), which further laid the foundation for the practical application of organic electroluminescent display devices. In 1997, monochromatic organic electroluminescent display devices were first commercialized in Japan. In March 1999, Japan Pioneer Company took the lead in launching a colorful organic electroluminescent display panel designed for automotive audio-visual communication equipment and began mass production. All of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D413/10C07D413/14C09K11/06H01L51/54H01L51/50
CPCC07D413/14C07D413/10C09K11/06C09K2211/1059C09K2211/1088C09K2211/1092H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/657H10K50/12H10K85/6572
Inventor 钱超许军
Owner NANJING TOPTO MATERIALS CO LTD
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