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

Patent metadata

Field	Value
Publication number	US-2024179932-A1
Application number	US-202318385901-A
Country	US
Kind code	A1
Filing date	Oct 31, 2023
Priority date	Nov 11, 2022
Publication date	May 30, 2024
Grant date	—

Abstract

The present disclosure relates to an organic light emitting diode and an organic light emitting device including the same. The organic light emitting diode includes a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1, and the second compound is represented by Formula 3. According to an aspect of the present disclosure, it is allowed to provide an OLED and an organic light emitting device having high emitting efficiency and/or improved lifespan.

First claim

What is claimed is:

1 . An organic light emitting diode, comprising:
a first electrode; a second electrode facing the first electrode; and a first blue emitting material layer including a first compound and a second compound and positioned between the first and second electrodes, wherein the first compound is represented by Formula 1:

wherein in the Formula 1,
each of R1, R2, R3, R4, R5, R6, R7 and R8 is independently selected from the group consisting of deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
each of a1, a6, a7 and a8 is independently an integer of 0 to 5, each of a2, a4 and a5 is independently an integer of 0 to 4, and a3 is an integer of 0 to 3,
wherein the second compound is represented by Formula 3:

wherein in the Formula 3,
each of X1, X2 and X3 is independently selected from CR16 and N, at least one of X1, X2 and X3 is N,
Ar is selected from the group consisting of a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
each of R11, R12, R13, R14 and R15 is independently selected from the group consisting of deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
R16 is selected from the group consisting of hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 acylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group,
each of b1 and b2 is independently an integer of 0 to 4, each of b3, b4 and b5 is independently an integer of 0 to 5.

2 . The organic light emitting diode according to claim 1 , wherein the Formula 1 is represented by Formula 1-1 or Formula 1-2:

wherein in the Formula 1-1,
each of R1, R2, R3, R4, R5, R6, R7 and R8 is independently selected from the group consisting of deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group, and
each of a6, a7 and a8 is independently an integer of 0 to 5, each of a1, a2, a4 and a5 is independently an integer of 0 to 4, and a3 is an integer of 0 to 3,
wherein in the Formula 1-2,
each of R1, R2, R3, R4, R5, R6, R7 and R8 is independently selected from the group consisting of deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C60 heteroaryl group, and
each of a1, a6, a7 and a8 is independently an integer of 0 to 5, each of a2 and a4 is independently an integer of 0 to 4, and a3 and a5 is independently an integer of 0 to 3.

3 . The organic light emitting diode according to claim 1 , wherein the first compound is one of compounds in Formula 2:

4 . The organic light emitting diode according to claim 1 , wherein the second compound is one of compounds in Formula 4:

5 . The organic light emitting diode according to claim 1 , wherein the first blue emitting material layer further includes a third compound represented by Formula 5:

wherein in the Formula 5,
one of X1 and X2 is C, and the other one of X1 and X2 is N,
each of R21, R22, R23, R24 and R25 is independently selected from the group consisting of deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C1 to C20 alkylsilyl group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C30 heteroaryl group,
R26 is selected from the group consisting of hydrogen, deuterium, halogen, cyano, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C1 to C20 alkylsilyl group, a substituted or unsubstituted C1 to C20 alkylamino group, a substituted or unsubstituted C6 to C30 arylamino group, a substituted or unsubstituted C6 to C30 arylsilyl group, a substituted or unsubstituted C6 to C30 aryl group and a substituted or unsubstituted C3 to C30 heteroaryl group,
each of d1 and d2 is independently an integer of 0 to 4, d4 is an integer of 0 to 3, and each of d3 and d5 is independently an integer of 0 to 2.

6 . The organic light emitting diode according to claim 5 , wherein the Formula 5 is represented by Formula 5-1 or Formula 5-2:

wherein in each of the Formulas 5-1 and 5-2, the definitions of R21 to R26 and d1 to d5 are same as those in Formula 5.

7 . The organic light emitting diode according to claim 5 , wherein the third compound is one of compounds in Formula 6:

Assignees

• Lg Display Co Ltd
• Lt Materials Co Ltd

Inventors

• Jang Ji-Seon
• Lee Chi-Ho
• Bae Suk-Young
• Ahn Han-Jin
• Kim Jun-Yun
• Choi Dae-Hyuk
• Kim Dong-Jun
• Kim Yong-Woo
• Jung Yong-Geun
• Shin Jin-Hwan
• Yu Seok-Hyeon

Classifications

• H10W90/00

  Package configurations · CPC title

• H10K2101/30

  Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values · CPC title

• H10K59/10

  OLED displays · CPC title

• H10K50/125

  specially adapted for multicolour light emission, e.g. for emitting white light · CPC title

• H10K50/12 Primary

  comprising dopants · CPC title