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A kind of compound applied in OLED field and its preparation method and application

A compound and technology in the field, applied in chemical instruments and methods, organic chemistry, semiconductor/solid-state device manufacturing, etc., can solve the problems of slow reaction rate, insufficient display screen, and narrow viewing angle of TFT-LCD display, and achieve good performance. , fast response rate, the effect of prolonging life

Active Publication Date: 2019-03-12
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, TFT-LCD display screens have disadvantages such as slow response rate, power consumption, and narrow viewing angle, which are not enough to be a perfect display screen.

Method used

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  • A kind of compound applied in OLED field and its preparation method and application
  • A kind of compound applied in OLED field and its preparation method and application
  • A kind of compound applied in OLED field and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] A preparation method of the above-mentioned compound, its process synthesis route is:

[0034]

[0035] A material applied in the field of OLED, the material includes the compound mentioned above.

[0036] A hole-transporting layer material, a light-emitting layer material, and an electron-transporting layer material containing the above-mentioned compound, preferably, a blue-light, green-light, and red-light host material containing the above-mentioned compound.

[0037] An OLED device comprising the compound described above.

[0038] The above-mentioned technical scheme and its beneficial effects are further explained and illustrated below by taking the compounds represented by structures (I-1) and (I-2) as examples.

Embodiment 1

[0040] 1. A compound (I-1) applied in the OLED field:

[0041]

[0042] 2. The preparation method of compound (I-1)

[0043] (1) Process synthesis route

[0044]

[0045] (2) Concrete preparation steps:

[0046] Step 1: add 0.1mol compound (1), 0.2mmol NBS and 1000mL THF to the reaction flask, react at room temperature under nitrogen protection for 24 hours, remove THF, add dichloromethane, wash with water, dry, pass the crude product through the column, and then The product compound (2) was obtained by recrystallization and purification with dichloromethane and ethanol, with a yield of 43%, C4H5Br2N, M=226.90, and M+1=228.2 was detected;

[0047] Step 2: 0.1mol compound (2), 0.1mmol compound (3), 1000mL acetone and 0.2mol potassium carbonate, react at 60°C under nitrogen protection for 24 hours, cool down to room temperature, remove acetone, add dichloromethane, wash with water , dried, the crude product was passed through the column, and then recrystallized and puri...

Embodiment 2

[0050] 1. A compound (I-2) used in the OLED field:

[0051]

[0052] 2, the preparation method of compound (I-2)

[0053] (1) Process synthesis route

[0054]

[0055] (2) Concrete preparation steps:

[0056]Step 1: add 0.1mol compound (1), 0.2mmol NBS and 1000mL THF to the reaction flask, react at room temperature under nitrogen protection for 24 hours, remove THF, add dichloromethane, wash with water, dry, pass the crude product through the column, and then The product compound (2) was obtained by recrystallization and purification with dichloromethane and ethanol, with a yield of 43%, C4H5Br2N, M=226.90, and M+1=228.2 was detected;

[0057] Step 2: 0.1mol compound (2), 0.1mmol compound (3), 1000mL acetone and 0.2mol potassium carbonate, react at 60°C under nitrogen protection for 24 hours, cool down to room temperature, remove acetone, add dichloromethane, wash with water , dried, the crude product was passed through the column, and then recrystallized and purified...

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Abstract

The present invention provides a compound used in the field of OLED, characterized in that the structure is shown in general formula (I): (I), wherein, X, Y, R are independently selected from alkyl, aryl, heteroaryl base. The present invention also provides a preparation method of the compound, further, the application of the compound in the OLED field includes: a material containing the compound, a hole transport layer material, a light emitting layer material and an electron transport layer Materials, main materials for blue light, green light, red light, and OLED devices. The compound of the invention is widely used, and the finally obtained OLED device has good performance, including faster reaction rate and lower driving voltage, and can maintain relatively stable luminescent spectrum of the device, and its service life is further extended. In addition, the preparation method provided by the invention has simple operation and high yield, which provides a favorable basis for expanding the scope of application of the compound.

Description

technical field [0001] The invention relates to the field of OLEDs, in particular to a compound used in the field of OLEDs and its preparation method and application. Background technique [0002] As a display screen, TFT-LCD is a non-self-illuminating display. The light must be projected through the backlight, and then penetrate the polarizer, glass substrate, liquid crystal layer, color filter, Glass substrates, polarizers and other related components finally enter the human eye for imaging to achieve the display function. In practical applications, TFT-LCD display screens have disadvantages such as slow response rate, power consumption, and narrow viewing angle, which are not enough to be a perfect display screen. [0003] OLED, as a new display technology, has the characteristics of self-luminescence, and is prepared by using a very thin organic material coating and a glass substrate. These organic materials emit light when an electric current is passed through them. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D487/04C09K11/06H01L51/54
CPCC09K11/06C07D487/04C09K2211/1044H10K85/6572
Inventor 邵剑
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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