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Organic electrically stimulated photo emission material and organic electrically stimulated photo emission element

An electroluminescence element and electroluminescence technology are applied in the direction of luminescent materials, electroluminescence light sources, electrical components, etc., which can solve the problems of general products without structure, unable to use blue phosphorescent materials, and insufficient energy levels, etc., to achieve Effect of increasing luminous efficiency and thermal stability

Inactive Publication Date: 2008-02-27
RITDISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CBP is often used as the host of phosphorescent materials, but it is only suitable for red and green phosphorescent materials. Because the energy level is not large enough, it cannot be used for blue phosphorescent materials, and after the film is formed, some areas will gradually crystallize, thereby reducing the component The usage time (lifetime decay)
[0014] It can be seen that the above-mentioned existing organic electroluminescent materials and organic electroluminescent elements obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.
In order to solve the problems existing in organic electroluminescent materials and organic electroluminescent components, relevant manufacturers have tried their best to find solutions, but for a long time no suitable design has been developed, and there is no suitable product for general products. The structure can solve the above-mentioned problems, which is obviously a problem that relevant industry players are eager to solve

Method used

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  • Organic electrically stimulated photo emission material and organic electrically stimulated photo emission element
  • Organic electrically stimulated photo emission material and organic electrically stimulated photo emission element
  • Organic electrically stimulated photo emission material and organic electrically stimulated photo emission element

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0058] The organic electroluminescence material according to the first embodiment of the present invention has the structure of the following formula (1),

[0059]

[0060] Formula 1)

[0061] where X 1 Oxygen atom, sulfur atom or NH, Y 1 with Z 1 Is independently nitrogen atom, alkyl (alkyl), haloalkyl or cycloalkyl (cycloalkyl), R 1 to R 4 is independently hydrogen, alkyl (alkyl), haloalkyl, cycloalkyl (cycloalkyl) or alkoxyl (alkyloxy), R 5 For aromatic (aromatic rings), R 6 is hydrogen, alkyl, haloalkyl, cycloalkyl, alkoxy or

[0062]

[0063] where X 2 Oxygen atom, sulfur atom or NH, Y 2 with Z 2 Is independently nitrogen atom, alkyl (alkyl), haloalkyl or cycloalkyl (cycloalkyl), R 7 to R 10 is independently hydrogen, alkyl (alkyl), haloalkyl, cycloalkyl (cycloalkyl) or alkoxyl (alkyloxy), R 11For aromatic (aromatic rings).

[0064] Herein, R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 , R 9 with R 10 are independently substituted alkyl groups with 1...

no. 2 example

[0070] As shown in FIG. 2, the organic electroluminescent element 2 according to the second embodiment of the present invention is arranged on a substrate 21, and includes a first electrode 22, a light-emitting layer 23 and a second electrode 24 in sequence, and the light-emitting layer 23 contains at least one organic electroluminescent material, and the organic electroluminescent material has the structure of the following formula (2),

[0071]

[0072] Formula (2)

[0073] where X 3 Oxygen atom, sulfur atom or NH, Y 3 with Z 3 Is independently nitrogen atom, alkyl (alkyl), haloalkyl or cycloalkyl (cycloalkyl), R 12 to R 15 is independently hydrogen, alkyl (alkyl), haloalkyl, cycloalkyl (cycloalkyl) or alkoxyl (alkyloxy), R 16 For aromatic (aromatic rings), R 17 is hydrogen, alkyl, haloalkyl, cycloalkyl, alkoxy or

[0074]

[0075] where X 4 Oxygen atom, sulfur atom or NH, Y 4 with Z 4 Is independently nitrogen atom, alkyl (alkyl), haloalkyl or cycloalkyl (cy...

experiment example 1

[0110]

[0111]Compound 2: (N', N"-di(benzoyl)diphenylic acid hydrazide) Take compound 1 (10.0g) into a double-neck flask (500mL), and inject toluene and ethanol (each 40mL). Under nitrogen atmosphere with Stir with a magnetic stirrer, then inject NH 2 NH 2 ·H 2 O (15 mL) and then heated to 105 °C. And after maintaining for 24 hours, distill the solvent and residual NH 2 NH 2 After removal, a white solid precipitated out. After adding ethanol to wash the white solid, the white solid was collected by suction filtration, and finally the residual solvent was removed from the white solid with a mechanical pump to obtain the product (8.3 g), with a yield of 82.3%.

[0112] The above-mentioned white solid (15.00 g, 55.49 mmol) was put into a double-necked bottle (250 ml), nitrogen gas was passed through one end, and the other end was sealed with a serum stopper. Pour dehydrated NMP (150ml) and stir with a magnetic stirring bar. After ice bathing for 20 minutes, Benzoyl chl...

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Abstract

The invention discloses an organic electric exciting light material, which is characterized by the following: setting structure as formula (1); setting X1 as oxygen atom, sulfur atom or NH; setting Y1 and Z1 as nitrogen atom , alkyl group (alkyl), bittern alkyl or cycloalkyl separately; setting R1 to R4 as hydrogen, alkyl, bittern alkyl, cycloalkyl or alkyloxy; choosing R5 as aromatic rings; choosing R6 as hydrogen, alkyl, bittern alkyl, cycloalkyl and alkoxy; setting X2 as oxygen atom, sulfur atom or NH; setting Y2 and Z2 as separate nitrogen atom, alkyl, bittern alkyl or cycloalkyl; setting R7 to R10 as hydrogen, alkyl, bittern alkyl, cycloalkyl or alkyloxy; setting R11 as aromatic rings.

Description

technical field [0001] The invention relates to a luminescent material and a luminescent element, in particular to an organic electroluminescent material and an organic electroluminescent element. Background technique [0002] With the advancement of electronic technology, light-weight and high-efficiency displays have also flourished, such as liquid crystal displays. However, liquid crystal displays have some disadvantages, such as the viewing angle is not wide enough, the response time is not fast enough, so they cannot be used in high-speed animation, and liquid crystal displays need to use polarizers and backlights, thus increasing power consumption, weight and cost. [0003] In view of this, the organic electroluminescent display (Organic Electroluminescent Display) has the advantages of self-illumination, no viewing angle limitation, power saving, easy manufacturing process, low cost, high response speed and full color, making the organic electroluminescent display bec...

Claims

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Application Information

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IPC IPC(8): C09K11/06H05B33/14
Inventor 梁文杰李君浩袭智豪黄丰贸蔡信弘杨智强
Owner RITDISPLAY
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