Novel OLED luminescent material for display equipment and preparation method of novel OLED luminescent material

A technology for light-emitting materials and display devices, which is applied in the manufacture of semiconductor/solid-state devices, electrical components, and electrical solid-state devices, etc., can solve problems such as low quantum efficiency, and achieve the effect of improving quantum efficiency and strong operability

Pending Publication Date: 2021-03-16
李梦林
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a novel OLED luminescent material for display equipment and a preparation method thereof, which has the advantages of being able to observe the fluorescence spectrum and the phosphorescence spectrum at the same time and significantly improve the quantum efficiency, etc. Existing luminescent materials for display devices have technical problems of low quantum efficiency

Method used

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  • Novel OLED luminescent material for display equipment and preparation method of novel OLED luminescent material

Examples

Experimental program
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Effect test

Embodiment 1

[0042] (1) 5 parts by mass of coronene, 3 parts by mass of anthraquinone, 5 parts by mass of N-allyl-4-bromo-1,8-naphthalimide, 10 parts by mass of p-chloropyrazoline Ketone, 5 parts by mass of resveratrol and 8 parts by mass of 8-hydroxyporphyrin aluminum were dissolved in 60 parts by mass of triethylamine, vacuumed 3 times, and reacted under nitrogen protection. The reaction temperature was controlled at 50°C. 8h, after the HPLC spot plate monitors that the reaction is complete, it is cooled to room temperature to obtain a reactant mixture 1;

[0043] (2) Add 20 parts by mass of dilute hydrochloric acid with a mass fraction of 5% to the reaction mixture one prepared in step (1), stir and mix well, filter, take the filtrate, and then add 40 parts by mass of acetic acid to the mother liquor Ethyl ester and 30 parts by mass of water solution, the water phase was washed twice with ethyl acetate, the organic phases were combined, dried with anhydrous magnesium sulfate, and then c...

Embodiment 2

[0054] (1) 8 parts by mass of coronene, 4 parts by mass of anthraquinone, 6 parts by mass of N-allyl-4-bromo-1,8-naphthalimide, 11 parts by mass of p-chloropyrazoline Ketone, 7 parts by mass of resveratrol and 9 parts by mass of 8-hydroxyporphyrin aluminum were dissolved in 70 parts by mass of triethylamine, vacuumed 3 times, and reacted under nitrogen protection. The reaction temperature was controlled at 55°C. After 9h, HPLC spot plate monitors that the reaction is complete, and then cools to room temperature to obtain a reactant mixture 1;

[0055] (2) Add 22 parts by mass of dilute hydrochloric acid with a mass fraction of 5% to the reaction mixture one prepared in step (1), stir and mix well, filter, take the filtrate, and then add 50 parts by mass of acetic acid to the mother liquor Ethyl ester and 40 parts by mass of water solution, the water phase was washed twice with ethyl acetate, the organic phase was combined, dried with anhydrous magnesium sulfate, and then conce...

Embodiment 3

[0066] (1) 10 parts by mass of coronene, 5 parts by mass of anthraquinone, 8 parts by mass of N-allyl-4-bromo-1,8-naphthalimide, 12 parts by mass of p-chloropyrazoline Ketone, 8 parts by mass of resveratrol and 10 parts by mass of 8-hydroxyporphyrin aluminum were dissolved in 80 parts by mass of triethylamine, vacuumed 3 times, and reacted under nitrogen protection. The reaction temperature was controlled at 60°C. After 10 h, after HPLC spot plate monitoring reaction is complete, cool to room temperature to obtain reactant mixture 1;

[0067] (2) Add 25 parts by mass of dilute hydrochloric acid with a mass fraction of 5% to the reaction mixture one prepared in step (1), stir and mix well, filter, take the filtrate, and then add 50 parts by mass of acetic acid to the mother liquor Ethyl ester and 40 parts by mass of water solution, the water phase was washed twice with ethyl acetate, the organic phase was combined, dried with anhydrous magnesium sulfate, and then concentrated t...

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Abstract

The invention discloses a preparation method of an OLED (Organic Light Emitting Diode) luminescent material for manufacturing novel display equipment. The OLED luminescent material comprises the following raw materials in parts by weight: 5-10 parts of cororene, 3-5 parts of anthraquinone, 5-8 parts of N-allyl-4-bromo-1,8-naphthalimide, 10-12 parts of p-chloropyrazolone, 5-8 parts of resveratrol,8-10 parts of 8-hydroxy porphyrin aluminum, 90-120 parts of triethylamine, 20-25 parts of diluted hydrochloric acid with the mass fraction of 5%, 150-180 parts of ethyl acetate, 10-15 parts of methylalcohol, 2-5 parts of potassium carbonate, 20-25 parts of dichloromethane, 160-200 parts of ultrapure water, 0.5-0.8 part of methyl 4-iodobenzoate, 0.2-0.5 part of bis(triphenylphosphine)palladium dichloride, 1-2 parts of triphenylphosphine, 8-10 parts of copper iodide, 10-15 parts of sodium hydroxide, 5-8 parts of absolute ethyl alcohol, 8-10 parts of diluted hydrochloric acid with the mass fraction of 3%, 5-10 parts of benzylamine, 5-8 parts of dicyclohexylcarbodiimide, 10-15 parts of 4-dimethylaminopyridine, 20-30 parts of tetrahydrofuran and 5-10 parts of a doping agent. The OLED luminescent material has the technical advantages that red, yellow, green and blue fluorescence spectrums and phosphorescence spectrums can be observed at the same time, and the quantum efficiency is remarkably improved.

Description

[0001] This application is a divisional application of a patent with an application date of May 7, 2018, an application number of 201810425441.4, and an invention title of "A new type of OLED light-emitting material for display equipment and its preparation method". technical field [0002] The invention relates to the technical field of new display and optoelectronic information, in particular to an OLED luminescent material for a new display device and a preparation method thereof. Background technique [0003] The development of the third global industrial revolution, especially the major achievements of the microelectronics and computer industries, has led to the innovation of new display and optoelectronic information technology to meet the global demand for fast and efficient information display. The existing display technologies mainly include cathode ray tube (CRT) and flat panel display (FPD). The most widely used one is liquid crystal display (LCD) in flat panel dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/54H01L51/56
CPCH10K85/624H10K85/615H10K85/622H10K85/653H10K85/654H10K85/6574H10K85/6572H10K50/12H10K50/11H10K71/00
Inventor 段玉珍
Owner 李梦林
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