Nitrogen-containing compounds, organic electroluminescent devices and electronic devices
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A nitrogen compound and electroluminescence technology, applied in the field of organic materials, can solve the problems of poor stability, few types, and not enough to meet actual needs, and achieve the effects of long life, strong electron donating ability, and increasing glass transition temperature.
Active Publication Date: 2021-10-08
SHAANXI LIGHTE OPTOELECTRONICS MATERIAL CO LTD
View PDF12 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The existing blue phosphorescent materials have few types and poor stability, so the development of such materials is of great significance
Although the blue light materials disclosed in patents CN108129332A, US20190074449A and CN109651174A have improved luminous characteristics, they are not enough to meet actual needs
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0167] Preparation of blue organic electroluminescent devices by the following method
[0168] Set the thickness to The ITO substrate (manufactured by Corning) was cut into a size of 40mm (length) × 40mm (width) × 0.7mm (thickness), and it was prepared into an experimental substrate with cathode, anode and insulating layer patterns by using a photolithography process. Ozone and O 2 :N 2 Plasma surface treatment was performed to increase the work function of the anode (experimental substrate) and to remove scum.
[0169] Vacuum-deposit m-MTDATA (4,4',4"-tris(N-3-methylphenyl-N-phenylamino)triphenylamine) on the experimental substrate (anode) to form a thickness of The hole injection layer (HIL), and the compound NPB is vacuum-evaporated on the hole injection layer to form a thickness of hole transport layer.
[0170] Evaporate TCTA (4,4',4"-tris(carbazol-9-yl)triphenylamine) on the hole transport layer to form a thickness of electron blocking layer (EBL).
[0171] Usi...
Embodiment 2-24
[0177] Substitute Example with Compounds 3, 4, 7, 8, 28, 36, 79, 82, 83, 106, 107, 108, 116, 117, 121, 122, 124, 125, 126, 128, 133, 134, 135 Compound 1 whose light-emitting layer was co-evaporated with α,β-ADN in 1 was prepared according to the method in Example 1 to prepare a corresponding blue organic electroluminescent device.
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
Login to view more
Abstract
The application provides a nitrogen-containing compound represented by Chemical Formula 1, an organic electroluminescent device and an electronic device, which belong to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the organic electroluminescence device.
Description
technical field [0001] The present application relates to the technical field of organic materials, in particular to a nitrogen-containing compound, an organic electroluminescent device using the nitrogen-containing compound, and an electronic device using the organic electroluminescent device. Background technique [0002] Organic electroluminescent devices, also known as organic light-emitting diodes, refer to the phenomenon that organic light-emitting materials emit light when excited by current under the action of an electric field. It is a process of converting electrical energy into light energy. Compared with inorganic light-emitting materials, organic electroluminescent diodes (OLEDs) have the advantages of active light emission, large optical path range, low driving voltage, high brightness, high efficiency, low energy consumption, and simple manufacturing process. Because of these advantages, organic light-emitting materials and devices have become one of the most...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more