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Compound, display panel and display device

A compound and independent technology, applied in the field of display panels and display devices, compounds, can solve the problem of low luminous efficiency

Active Publication Date: 2021-04-30
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, existing OLED devices still have the problem of low luminous efficiency

Method used

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  • Compound, display panel and display device
  • Compound, display panel and display device
  • Compound, display panel and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] Embodiment 1: the preparation of compound H1

[0176] (1)

[0177] Under a nitrogen atmosphere, add about 100mL of anhydrous toluene to a 250mL reaction flask, then sequentially add compound A1 (4mmol), compound a1 (4mmol), sodium tert-butoxide t-BuONa (10mmol), catalyst tris(dibenzylideneacetone ) Dipalladium Pd 2 (dba) 3 (0.2mmol) and the ligand 2-bicyclohexylphosphine-2',6'-dimethoxybiphenyl S-Phos (0.6mmol), heated to 110°C and reacted overnight. After the reaction is complete, cool to room temperature, add dichloromethane DCM / H 2 O was extracted, and the collected organic phase was washed with anhydrous Na 2 SO 4 After drying, the filtrate was collected by suction filtration, the solvent was spun off and purified by column chromatography to obtain intermediate compound B1 (yield 80%).

[0178] MALDI-TOF (m / z): C31H20BrN: Calculated: 485.08, Found: 485.30.

[0179] (2)

[0180] Under a nitrogen atmosphere, compound B1 (1 mmol) was added to anhydrous tetr...

Embodiment 2～10

[0187] Embodiment 2~10: the preparation of compound H2~H10

[0188] The difference between the preparation method of compounds H2-H10 and that of Example 1 is that one or more of the raw material compounds C1 and c1 in step 3 were replaced to finally obtain the corresponding compounds, see Table 1 for details.

[0189] The raw material compounds C2 and C3 in Table 1 were prepared by referring to the preparation method of compound C1.

[0190] The difference is: in the preparation of compound C2, compound b1 is replaced by b2. The yield of compound C2 was 65%. MALDI-TOF (m / z): C44H27NS: Calculated: 601.19, Tested: 601.40.

[0191]

[0192] In the preparation of compound C3, compound b1 was replaced by b3. The yield of compound C3 was 63%. MALDI-TOF (m / z): C50H32N2: Calculated: 660.26, Tested: 660.45.

[0193]

[0194] Table 1: Synthetic parameters of compounds H2-H10

[0195]

[0196]

[0197] Simulated calculation of energy levels of compounds: using density ...

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Abstract

The invention discloses a compound, a display panel and a display device. The compound has a structure as shown in the following formula, wherein L, X, R1, R2, R3, R4, R5, n, m1, m2 and m3 are respectively as defined herein. The compound provided by the invention can be used for a display panel and a display device.

Description

technical field [0001] The invention belongs to the technical field of organic luminescence, and in particular relates to a compound, a display panel and a display device. Background technique [0002] An organic light emitting diode (OLED) is a self-luminous device that utilizes an organic thin film layer to generate electroluminescent light. Specifically, the OLED device is driven by an external electric field, and the anode and the cathode inject holes and electrons respectively; the holes and electrons migrate to the light-emitting layer and combine in the organic light-emitting material to generate excitons; the excitons in the excited state can be Release energy in the form of light to return to a stable ground state, producing visible light. [0003] However, existing OLED devices still have the problem of low luminous efficiency. In addition to being related to the structure of OLED devices, the luminous efficiency of OLED devices is also greatly affected by the or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D471/10C07D491/107C07D495/10H01L51/54H01L51/50
CPCC07D491/107C07D471/10C07D495/10H10K85/615H10K85/631H10K85/636H10K85/633H10K85/6576H10K85/6574H10K85/657H10K85/6572H10K50/18H10K50/15
Inventor 冉佺高威张磊代文朋翟露
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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