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Light-emitting compound, and organic light-emitting diode and organic light-emitting device having same

A technology of light-emitting compounds and chemical formulas, which can be used in diodes, compounds containing Group 3/13 elements of the periodic table, organic chemistry, etc., and can solve the problems of short life, unsuitable for commercial use, and low luminous efficiency of blue light-emitting materials.

Pending Publication Date: 2022-07-15
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the luminous efficiency and short lifetime of blue luminescent materials are too low for commercial use

Method used

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  • Light-emitting compound, and organic light-emitting diode and organic light-emitting device having same
  • Light-emitting compound, and organic light-emitting diode and organic light-emitting device having same
  • Light-emitting compound, and organic light-emitting diode and organic light-emitting device having same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0303] Example 1 (Ex.1): Fabrication of OLEDs

[0304] Compound 1-1 obtained in Synthesis Example 1 was applied to an emissive material layer (EML) to manufacture an organic light emitting diode. The glass substrate (wherein ITO (100 nm) is coated as a thin film on the glass substrate) is cleaned and ultrasonically cleaned by a solvent such as isopropanol, acetone, and the glass substrate is dried in an oven at 100°C. The substrate was transferred into a vacuum chamber to deposit the light-emitting layer. Subsequently, the deposition rate is set to In the case of about 5*10 -7 Torr to 7*10 -7 The emissive layer and cathode were deposited in the following order by evaporation from a heated boat under Torr:

[0305] HIL (chemical formula 8 (97 wt %) and chemical formula 9 (3 wt %), ); HTL (chemical formula 8, ); EBL (H23 in formula 11, ); EML (matrix (2-1, 98 wt % in Chemical formula 7) and dopant (1-1, 2 wt %), ); HBL (E1 in formula 13, ); EIL (chemical formu...

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Abstract

The present disclosure relates to a light-emitting compound having a structure of chemical formula 1 below, and an organic light-emitting diode (OLED) and an organic light-emitting device comprising the same. The OLED and the organic light-emitting device including the light-emitting compound can improve the light-emitting efficiency and the light-emitting lifetime thereof. [Chemical Formula 1]

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2020-0186021 filed in Korea on December 29, 2020, the entire contents of which are expressly incorporated into this application. technical field [0003] The present disclosure relates to a light-emitting compound, and more particularly, to a light-emitting compound having excellent light-emitting efficiency and light-emitting lifetime, and an organic light-emitting diode and an organic light-emitting device including the same. Background technique [0004] Among widely used flat panel display devices, an organic light emitting diode (OLED) display has drawn attention as a display device rapidly replacing a liquid crystal display device (LCD). OLEDs can be formed as thick as The following organic thin films and unidirectional or bidirectional images can be achieved by electrode configuration. In addition, the OLED can even be formed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C09K11/06H01L51/54
CPCC07F5/02C09K11/06C09K2211/1096H10K59/38H10K59/12H10K85/657H10K50/131H10K50/11C07F5/027H10K59/32H10K85/615C09K2211/1022C09K2211/1011H10K50/19C09K2211/1018H10K85/322H10K2101/10
Inventor 崔樹娜宋寅範徐正大
Owner LG DISPLAY CO LTD