Organic light emitting material and organic light emitting diode (OLED) device

A technology of light-emitting diodes and light-emitting materials, which is applied in the fields of light-emitting materials, organic chemistry, and electric solid-state devices, can solve the problems of increasing the production cost of OLED devices, aging of OLED devices, etc., and achieves reduction of exciton quenching phenomenon, hole/electron Transmission balance, good stability

Inactive Publication Date: 2018-08-17
AAC TECH NANJING
View PDF5 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many current TADF material designs, in order to achieve the purpose of HOMO-LUMO separation, must use organic functional groups containing carbazole or triphenylamine or C-N bonds as organic groups for transporting holes or forming HOMO. However, these groups group is very easy to cause the aging of subsequent OLE

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
  • Organic light emitting material and organic light emitting diode (OLED) device
  • Organic light emitting material and organic light emitting diode (OLED) device
  • Organic light emitting material and organic light emitting diode (OLED) device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below. However, those of ordinary skill in the art can understand that in each implementation manner of the present invention, many technical details are proposed in order to enable readers to better understand the present invention. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solution claimed by each claim of the present invention can also be realized.

[0052] compound

[0053] Some specific embodiments of the present invention relate to organic light-emitting materials, which have a structure represented by general formula (D):

[0054]

[0055] in,

[0056] A 1 、A 2 、A 3 Each independently is a hydrogen atom, a deuterium atom, a hydrogen-substituted or deuterium-substituted saturated alkyl chain, an ami...

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

No PUM Login to view more

Abstract

The invention relates to the technical field of organic electroluminescent devices, and discloses an organic light emitting material and an organic light emitting diode (OLED) device comprising the same. The organic light emitting material has a structure represented by the formula (D). The material is used as the light emitting material of an organic light emitting diode, has a TADF function anda light extraction function at the same time, and is a guest material with a balanced hole transfer and electron transfer performance. More importantly, the organic light emitting material does not contain any functional group such as carbazole, triphenyl amine, or the like; thus the stability of the material is good, and avoided are the situations that the chemical bonds are broken, material aging happens, and the device performance deteriorates quickly during the long term using process of OLED devices.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescent devices, in particular to an organic light-emitting material and an organic light-emitting diode device. Background technique [0002] Organic electroluminescent device (OLED) emerged as a new generation of flat panel display technology and gradually entered people's field of vision. The initial OLED structure is very simple, that is, anode / luminescent layer (including a light-emitting material) EML / cathode. The device performance of this simple structure is poor, the required start-up voltage is high, and the luminous efficiency is low. Since then, various device structures have been proposed one after another. For example, the basic device structure of the current OLED is: anode / hole injection layer HIL / hole transport layer HTL / EML light emitting layer (host-guest doping system) / ETL electron transport layer / Electron injection layer EIL / cathode. In such a multi-layer device ...

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): C07D403/10C07D403/04C07D403/14C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D403/04C07D403/10C07D403/14C09K2211/1059C09K2211/1044C09K2211/1007C09K2211/1011H10K85/622H10K85/626H10K85/6572H10K50/11H10K50/15H10K50/16
Inventor 谢再锋
Owner AAC TECH NANJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap