Organic electroluminescence material and application thereof
What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
A technology for electroluminescent materials and electroluminescent devices, applied in the fields of luminescent materials, organic chemistry, circuits, etc., to achieve the effects of good film stability, moderate molecular weight, and excellent device efficiency
Inactive Publication Date: 2017-08-08
VALIANT CO LTD
View PDF4 Cites 3 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
[0004] At present, OLED display technology has been applied in smart phones, tablet computers and other fields, and will further expand to large-size applications. However, compared with the actual product application requirements, the luminous efficiency and service life of OLED devices need to be further improved.
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
[0038] The preparation of embodiment 1 compound 1
[0039]
[0040] In a 2L three-necked flask, add 2,7-dibromonaphthalene (286g, 1mol), aniline (205g, 2.2mol), sodium tert-butoxide (288g, 3mol), palladium acetate (4.5g, 0.02mol), three tert- Butylphosphine (8.1g, 0.04mol), ortho-xylene (1kg), heat up and reflux, keep warm for 8hr, cool down to 25°C, add 500g of deionized water, stir for 10min, separate liquid, collect organic phase, suction filter, and remove the filtrate Solvent, the obtained crude product was purified by silica gelcolumn chromatography, the eluent was petroleumether: ethyl acetate = 3:1, the yield eluent was desolvated, and compound 1 was obtained, with a total weight of 117g and a yield of 37%, MS (m / s): 310.1.
Embodiment 2- Embodiment 11
[0041] Embodiment 2-Example 11 Compound 2-Preparation of Compound 11
[0042] Using different types of substrates as raw materials, they performed C-N coupling reactions with 2,7-dibromonaphthalene respectively, and prepared Compound 2-Compound 11 according to the method described in Example 1. The results are shown in Table 1 below:
[0043] Table 1 Compound 2-Compound 11 data sheet
[0044]
Embodiment 12
[0045] The preparation of embodiment 12 compound 12
[0046]
[0047]In a 1L three-necked flask, add m-dibromobenzene (47.2g, 0.2mol), compound 1 (31g, 0.1mol), sodium tert-butoxide (28.8g, 0.3mol), palladium acetate (0.45g, 0.002mol), Tri-tert-butylphosphine (0.81g, 0.004mol), o-xylene (500g), heat up and reflux, keep warm for 8hrs, cool down to 25°C, add 200g of deionized water, stir for 10min, separate liquids, collect the organic phase, filter with suction, The filtrate was desolvated, and the obtained crude product was purified by silica gelcolumn chromatography. The eluent was petroleumether:ethyl acetate=3:1, and the yield was desolvated by the eluent to obtain compound 12, with a total weight of 40.3 g and a yield of 65%. MS (m / s): 620.0.
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 invention belongs to the field of organic electroluminescence and particularly relates to an organic electroluminescence material and application thereof. The organic electroluminescence material comprises a molecular structure expressed by a formula (1) which is shown in the description. In the formula (1), R1, R2, R3, R4, R5, R6, R7, R8 and R9 are same with or different from R10 and are independently selected from one of hydrogen atoms, fluorine atoms, methoxy groups, alkane substituents, aromatic substituents, secondary amine substituents, tertiary amine substituents or nitrogen-containing heterocyclic ring substituents. The material has high film stability, can be effectively used as a functional layer of a micromolecule OLED device, and can be applied to the field of organic electroluminescence; organic electroluminescence devices prepared from the material has excellent photoelectric properties and long service life.
Description
technical field [0001] The invention belongs to the field of organic electroluminescence, and in particular relates to an organic electroluminescence material and its application. Background technique [0002] Organic electroluminescent diode (OLED) was produced in the 1980s. Compared with liquid crystal display, OLED display technology has many advantages such as self-illumination, wide viewing angle, fast response speed, and flexible display, so it has attracted widespread attention. . [0003] The OLED light-emitting device is like a sandwich structure, including electrode material film layers, and organic functional materials sandwiched between different click film layers. Various functional materials are superimposed on each other according to the application to form an OLED light-emitting device. As a current device, when a voltage is applied to the electrodes at both ends of the OLED light-emitting device, and the positive and negative charges in the functional mater...
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