Organic electroluminescent device

An electroluminescence device and luminescence technology, which is applied in the direction of electric solid-state devices, electrical components, semiconductor devices, etc., can solve the problems of unsatisfactory effects, few types of blue light subject and blue light object materials, etc.

Inactive Publication Date: 2018-09-21
CHANGCHUN HYPERIONS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are fewer types of Blu-ray host and Blu-ray guest materials in use today, and the effect is not satisfactory

Method used

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  • Organic electroluminescent device
  • Organic electroluminescent device
  • Organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0101] The ADN in Comparative Example 1 was replaced with the compounds A-16, A-22, A-69, A-87, A-114, B-9, B-46, B-54, and B-110 of the present invention.

[0102] Table 1 shows the properties of light-emitting devices prepared by using compounds A-16, A-22, A-69, A-87, A-114, B-9, B-46, B-54, B-110 and ADN of the present invention. Luminous characteristic test results.

Embodiment 10-16

[0104] The DPAP-DPPA in Example 5 was replaced with the compounds C-7, C-74, C-117, D-27, D-104, E-36, and F-29 of the present invention.

[0105] [Table 1] Test results of light emitting characteristics of light emitting devices

[0106]

[0107] It can be seen from the data in Table 1 that the organic electroluminescent device of the embodiment of the present invention uses the compound of the present invention as the main body and dopant material of the light-emitting layer, and the luminous efficiency and service life of the device are significantly improved.

[0108] An organic electroluminescent device according to the present invention uses the compound represented by the chemical formula (I) as the main body of the light-emitting layer, and the luminous efficiency and service life of the device have been significantly improved. On this basis, the luminous efficiency and service life of the device are further improved by using the compound represented by the chemical...

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Abstract

The invention provides an organic electroluminescent device, and relates to the technical field of organic photoelectrics. The organic electroluminescent device comprises a substrate, an anode, a cathode, and organic matter layers, wherein each organic matter layer includes at least one of an anode modification layer, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transmission layer, an electron injection layer and a cathode modification layer, interposed between the anode and the cathode. By designing a reasonable device structure, by means of combinedusage of the subject and object of the lighting emitting layer, the organic electroluminescent device reduces the open circuit voltage, and improves the generation and utilization rate of excitons, thus improving the light emitting efficiency and the service life of the device. The organic electroluminescent device is excellent in performance and can be widely applied to the field of display and illumination.

Description

technical field [0001] The invention relates to an organic electroluminescent device. More specifically, it relates to organic electroluminescent devices characterized by the inclusion of specific light-emitting layer host and guest materials. Background technique [0002] Organic electroluminescent devices are double-injection devices. Electrons and holes combine to form excitons in the light-emitting layer, and the excitons return to a stable ground state to produce radiative light. A general organic electroluminescent device (OLED) is composed of a cathode, an anode, and an organic functional layer between the cathode and the anode. The composition of the device includes transparent ITO anode, hole injection layer (HIL), hole transport layer (HTL), light emitting layer (EL), hole blocking layer (HBL), electron transport layer (ETL), electron injection layer (EIL) ), LiF / Al cathode and other functional layers. On the one hand, the luminous efficiency and device life are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/54
CPCH10K85/00H10K50/00
Inventor 蔡辉张军
Owner CHANGCHUN HYPERIONS TECH CO LTD
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