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Organic light emitting diode and organic light emitting device including the same

A technology for organic light-emitting devices and light-emitting diodes, which can be used in diodes, light-emitting materials, organic semiconductor devices, etc., and can solve the problems of short light-emitting life and commercialization limitations of metal complexes.

Pending Publication Date: 2021-04-20
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal complexes, which are typical phosphorescent materials, have a short luminescence lifetime and thus are limited in terms of commercialization.

Method used

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  • Organic light emitting diode and organic light emitting device including the same
  • Organic light emitting diode and organic light emitting device including the same
  • Organic light emitting diode and organic light emitting device including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] (4) Embodiment 1 (Ex1)

[0135] EML was formed using a host (m-CBP (Formula 5-6), 64 wt%), Compound 1-6 of Formula 2 (35 wt%), and Compound 2-6 of Formula 4 (1 wt%).

Embodiment 2

[0136] (5) Embodiment 2 (Ex2)

[0137] EML was formed using host (m-CBP (Formula 5-6), 64 wt%), Compound 1-16 of Formula 2 (35 wt%), and Compound 2-6 of Formula 4 (1 wt%).

Embodiment 3

[0138] (6) Embodiment 3 (Ex3)

[0139] EML was formed using a host (m-CBP (Formula 5-6), 64 wt%), Compound 1-13 of Formula 2 (35 wt%), and Compound 2-6 of Formula 4 (1 wt%).

[0140] [Formula 5-1]

[0141]

[0142] [Formula 5-2]

[0143]

[0144] [Formula 5-3]

[0145]

[0146] [Formula 5-4]

[0147]

[0148] [Formula 5-5]

[0149]

[0150] [Formula 5-6]

[0151]

[0152] [Formula 6-1]

[0153]

[0154] [Formula 6-2]

[0155]

[0156] [Formula 6-3]

[0157]

[0158] The light emitting properties of the OLEDs in Comparative Examples 1 to 3 and Examples 1 to 3 were measured and listed in Table 1. (EQE = External Quantum Efficiency)

[0159] Table 1

[0160] V cd / A Im / W EQE(%) Ref1 3.8 10 10.0 4.2 Ref2 3.8 4 3.0 2.3 Ref3 3.7 3 2.6 1.8 Ex1 4.2 59 44 17.3 Ex2 4.2 63 47 18.5 Ex3 4.3 62 43 18.1

[0161] As shown in Table 1, the light emitting properties of OLEDs in Example...

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Abstract

Disclosed are an organic light emitting diode and an organic light emitting device including the same. The diode comprises a first compound and a second compound, wherein the energy level of the first compound and the energy level of the second compound satisfy a predetermined condition.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 10-2019-0130134 filed in Korea on October 18, 2019 and Korean Patent Application No. 10-2020-0114591 filed in Korea on September 8, 2020, hereby It is incorporated by reference in its entirety. technical field [0003] The present disclosure relates to an organic light emitting diode, and more particularly, to an organic light emitting diode having excellent light emitting properties, and an organic light emitting device including the organic light emitting diode. Background technique [0004] Recently, demand for flat panel display devices with a small footprint has increased. Among flat panel display devices, technologies of organic light emitting display devices including organic light emitting diodes (OLEDs) and which may be called organic electroluminescence devices are rapidly developed. [0005] By injecting electrons from a cathode serving a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50H01L51/54H01L27/32C09K11/06H10K99/00
CPCC09K11/06H10K85/624H10K85/6572H10K50/11H10K2101/20H10K50/131H10K50/19H10K85/657C09K2211/1007C09K2211/1018C09K2211/1011
Inventor 洪太良崔炯钟徐辅民金捘演
Owner LG DISPLAY CO LTD