Unlock instant, AI-driven research and patent intelligence for your innovation.

Electroluminescent material and device

A carbon atom, unsubstituted technology, applied in the field of electroluminescent materials and devices, can solve problems such as deficiencies, achieve good device performance and improve device efficiency.

Pending Publication Date: 2021-10-22
BEIJING SUMMER SPROUT TECH CO LTD
View PDF15 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, many host materials with different structures have been developed, but related device performance, such as device efficiency, driving voltage, lifetime, etc., are still insufficient, and further research and development are still urgently needed

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
  • Electroluminescent material and device
  • Electroluminescent material and device
  • Electroluminescent material and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] OLEDs can be fabricated on various substrates such as glass, plastic and metal. figure 1 The organic light emitting device 100 is shown schematically and non-limitatively. The drawings are not necessarily drawn to scale, and some layer structures in the drawings can also be omitted as required. Device 100 may include substrate 101 , anode 110 , hole injection layer 120 , hole transport layer 130 , electron blocking layer 140 , light emitting layer 150 , hole blocking layer 160 , electron transport layer 170 , electron injection layer 180 and cathode 190 . Device 100 may be fabricated by sequentially depositing the described layers. The properties and functions of the various layers and exemplary materials are described in more detail in US Patent No. 7,279,704 B2, columns 6-10, the entire contents of which are incorporated herein by reference.

[0031] Each of these layers has more instances. For example, flexible and transparent substrate-anode combinations are disc...

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

An electroluminescent material and device are disclosed. The electroluminescent material is a compound formed by bonding indole and pyrrole fused aza-macroring with quinazoline and a similar structure thereof at a specific position, and can be used as a main body material in an electroluminescent device. The novel compounds can effectively improve device efficiency and provide better device performance. An electroluminescent device and a compound formulation are also disclosed.

Description

technical field [0001] The present invention relates to compounds for use in organic electronic devices, such as organic light emitting devices. More particularly, it relates to a compound formed by bonding indole and pyrrole fused azamacrocycle with quinazoline and similar structures at specific positions, as well as organic electroluminescent devices and compound formulations containing the compound. Background technique [0002] Organic electronic devices include but are not limited to the following categories: organic light-emitting diodes (OLEDs), organic field-effect transistors (O-FETs), organic light-emitting transistors (OLETs), organic photovoltaic devices (OPVs), dye-sensitized solar cells (DSSCs) , organic optical detectors, organic photoreceptors, organic field-effect devices (OFQDs), light-emitting electrochemical cells (LECs), organic laser diodes, and organic plasmonic light-emitting devices. [0003] In 1987, Tang and Van Slyke of Eastman Kodak reported a d...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/16H01L51/54H01L51/50
CPCC07D487/16H10K85/6572H10K50/12
Inventor 王乐王强王俊飞张晗邝志远夏传军
Owner BEIJING SUMMER SPROUT TECH CO LTD