Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Compound, OLED display panel and electronic equipment

A display panel and compound technology, which is applied in the field of OLED display panels, can solve the problems of device electron and hole mobility imbalance, device efficiency and life decline, and electron transport performance degradation, etc., and achieves low driving voltage and high glass transition temperature. and thermal decomposition temperature, the effect of excellent film stability and uniformity

Active Publication Date: 2019-10-08
WUHAN TIANMA MICRO ELECTRONICS CO LTD
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the electron transport material is crystallized, the intermolecular charge transition mechanism will be different from the normal operation of the amorphous film mechanism, resulting in a decrease in the performance of electron transport, resulting in an imbalance in the mobility of electrons and holes in the entire device, and the formation of excitons. The efficiency is greatly reduced, and the formation of excitons will be concentrated at the interface between the electron transport layer and the light-emitting layer, resulting in a serious decrease in device efficiency and lifetime

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compound, OLED display panel and electronic equipment
  • Compound, OLED display panel and electronic equipment
  • Compound, OLED display panel and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0128] Preparation of compound HB03

[0129]

[0130] The preparation method is as follows:

[0131] (1) Preparation of compound HB03-1:

[0132] In a 250 mL round bottom flask, 2,6-dibromo-4-iodo-pyridine (10 mmol), 2,4-diphenyl-6-boronate-pyrimidine (12 mmol) and Pd(PPh 3 )4 (0.3mmol) was added to a mixture of toluene (30mL) / ethanol (20mL) and potassium carbonate (12mmol) aqueous solution (10mL), and refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude product was purified by silica gel column chromatography The final product HB03-1 was obtained.

[0133] (2) Preparation of compound HB03:

[0134] In a 250 mL round bottom flask, the intermediate product HB03-1, copper iodide (15 mmol), potassium tert-butoxide (65 mmol...

preparation example 2

[0137] Preparation of compound HB11

[0138]

[0139] The preparation method is as follows:

[0140] (1) Preparation of compound HB11-1:

[0141] In a 250 mL round bottom flask, 2,6-dibromo-4-iodo-benzene (10 mmol), 2,6-dinaphthyl-4-boronate-pyridine (12 mmol) and Pd(PPh 3 ) 4 (0.3mmol) was added to a mixture of toluene (30mL) / ethanol (20mL) and potassium carbonate (12mmol) aqueous solution (10mL), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude product was purified by silica gel column chromatography The final product HB11-1 was obtained.

[0142] (2) Preparation of compound HB11:

[0143] In a 250 mL round bottom flask, the intermediate product HB11-1, copper iodide (15 mmol), potassium tert...

preparation example 3

[0146] Preparation of compound HB35

[0147]

[0148] The preparation method is as follows:

[0149] (1) Preparation of compound HB35-1:

[0150] In a 250 mL round bottom flask, 2,6-dibromo-4-iodo-benzene (10 mmol), 2,6-diphenyl-4-boronate-pyridine (12 mmol) and Pd(PPh 3 ) 4 (0.3mmol) was added to a mixture of toluene (30mL) / ethanol (20mL) and potassium carbonate (12mmol) aqueous solution (10mL), and the reaction was refluxed under nitrogen atmosphere for 12h. The resulting mixture was cooled to room temperature, added to water, and filtered through a pad of celite. The filtrate was extracted with dichloromethane, washed with water, and dried over anhydrous magnesium sulfate. After filtration and evaporation, the crude product was purified by silica gel column chromatography The final product HB35-1 was obtained.

[0151] (2) Preparation of compound HB35:

[0152] In a 250 mL round bottom flask, the intermediate product HB35-1 (10 mmol), 2-(4-boronate) benzene-carbazol...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a compound, an OLED display panel and electronic equipment, wherein the compound has a structure of formula (I); the OLED display panel comprises a first electrode, a second electrode, and an organic thin film layer disposed between the first electrode and the second electrode, the organic thin film layer comprises an electron transport layer, which comprises any one or a combination of at least two of the compounds; and the electronic equipment comprises the OLED display panel. The triplet state energy level ET of an electroluminescent material is more than or equal to2.7eV, the HOMO energy level is less than or equal to -5.85eV, and the glass transition temperature is more than 120 DEG C, so that the electroluminescent material can be used in the OLED display panel to improve luminous efficiency and enable the electronic equipment comprising the electroluminescent material to have more excellent performance.

Description

technical field [0001] The invention relates to the technical field of OLED display panels, in particular to a compound, an OLED display panel and electronic equipment. Background technique [0002] With the commercialization and practical application of electroluminescent devices, people hope to obtain electron transport materials with higher transmission efficiency and better performance. Researchers have done some exploratory work in this field. The electron transport material used in traditional electroluminescent devices is tris(8-hydroxyquinoline)aluminum (Alq3), but the electron mobility of Alq3 is relatively low (about l0 -6 cm 2 / Vs), which makes the electron transport and hole transport of the device unbalanced. With the commercialization and practical application of electroluminescent devices, people hope to obtain ETL materials with higher transmission efficiency and better performance. In this field, researchers have done a lot of exploratory work. [0003] E...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C07D401/14C07D403/10C07D401/10C07D403/14C07D413/14C07D417/14C09K11/06H01L51/50H01L51/54
CPCC07D401/14C07D403/10C07D401/10C07D403/14C07D413/14C07D417/14C09K11/06C09K2211/1007C09K2211/1011C09K2211/1029C09K2211/1033C09K2211/1037C09K2211/1044C09K2211/1059H10K85/615H10K85/626H10K85/657H10K85/6572H10K50/11H10K50/171H10K50/16C07D239/26C07D213/38H10K85/636H10K85/654H10K85/324H10K85/342H10K2101/10H10K2102/103
Inventor 张磊高威牛晶华代文朋卢艳李杨刘营
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com