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

Compound, electron transport material, organic electroluminescent device and display device

A compound and selected technology, applied in the fields of organic electroluminescent devices and display devices, compounds, and electron transport materials, can solve the problem of restricting the luminous efficiency of OLED display device display function, unable to meet the development of OLED devices, low electron mobility rate, etc. problem, to achieve the effect of excellent display effect, high key energy and long life.

Pending Publication Date: 2021-12-21
YANTAI XIANHUA CHEM TECH CO LTD +1
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing electron transport materials have low electron mobility rate, poor film-forming properties, and poor energy level matching with adjacent layers, which cannot meet the development of OLED devices, seriously restricting the luminous efficiency of OLEDs and OLED display. The display function of the device

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, electron transport material, organic electroluminescent device and display device
  • Compound, electron transport material, organic electroluminescent device and display device
  • Compound, electron transport material, organic electroluminescent device and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0177] The glass plate coated with a transparent conductive layer of ITO with a thickness of 130 nm was ultrasonically treated in a commercial cleaning agent, rinsed in deionized water, ultrasonically degreasing in an acetone-ethanol mixed solvent, and baked in a clean environment until the water was completely removed parts, cleaned with UV light and ozone, and bombarded the surface with a low-energy cation beam;

[0178] Then, the above-mentioned glass substrate with anode is placed in a vacuum chamber, and the vacuum is evacuated to less than 10 -5 Torr, a hole injection layer is vacuum-evaporated on the above-mentioned anode layer film. The material of the hole injection layer includes the hole injection layer material HT-11 and the p-type dopant p-1, which is evaporated by a multi-source co-evaporation method. Plating, adjust the evaporation rate of hole injection layer material HT-11 to 0.1nm / s, the evaporation rate of p-type dopant p-1 is 3% of the evaporation rate of h...

Embodiment 2-8

[0186] Except for replacing A1 with compounds A4, A7, A10, A12, A15, A23, and A35, the rest is the same as that in Example 1.

Embodiment 9

[0188] The procedure is the same as in Example 1, except that compound GPH-44 is used in place of RH-1 and compound GD04 is used in place of RPD-1. The organic electroluminescent device of this embodiment emits green light.

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
Login to View More

Abstract

The invention provides a compound as shown in a general formula (I), wherein the compound can be used for an organic electroluminescent device as an electron transport material. The compound has a parent structure of a phenanthrene derivative linked electron-withdrawing fragment, has high bond energy between atoms, has good thermal stability, is beneficial to solid-state accumulation between molecules, and has strong electron transition ability. When the compound is used as an electron transport material, the driving voltage of an organic electroluminescent device is effectively reduced, the current efficiency of the organic electroluminescent device is improved, and the service life of the organic electroluminescent device is prolonged. The invention also provides an organic electroluminescent device containing the compound represented by the general formula (I) and a display device.

Description

[0001] This application claims the priority of the Chinese patent application filed on March 29, 2020 with the application number 202110333193.2 and the invention titled "a compound, electron transport material, organic electroluminescent device and display device", which The entire contents of this application are incorporated by reference. technical field [0002] The present application relates to the field of organic light-emitting displays, and in particular, to a compound, an electron transport material, an organic electroluminescent device and a display device. Background technique [0003] Electroluminescence (EL) refers to the phenomenon that luminescent materials emit light when excited by current and voltage under the action of an electric field. It is a luminescence process that directly converts electrical energy into light energy. Organic electroluminescent displays (hereinafter referred to as OLEDs) have a series of advantages such as self-luminous, low-voltag...

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): C07D213/22C07D401/04C07D401/10C07D401/14C07D403/10C07D405/14C07D409/14C07D471/04H01L51/54H01L51/50
CPCC07D401/10C07D471/04C07D401/14C07D213/22C07D403/10C07D409/14C07D405/14C07D401/04H10K85/626H10K85/615H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/16
Inventor 邢其锋丰佩川杨阳韩岳马艳胡灵峰陈跃张国选
Owner YANTAI XIANHUA CHEM TECH 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