IP Library Granted Patent US 11,552,255
Granted Patent B2
US 11,552,255 · App. 16/348,733 · Granted Jan 10, 2023

Heterocyclic compound and organic light-emitting element using same

Inventors: Hyun-Ju La (Hwaseong-si, KR); Yu-Jin Heo (Osan-si, KR); Won-Jang Jeong (Hwaseong-si, KR); Jin-Seok Choi (Suwon-si, KR); Dae-Hyuk Choi (Yongin-si, KR); Joo-Dong Lee (Seongnam-si, KR)
Assignee: LT MATERIALS CO., LTD.
H01L51/0072C07D471/04C07D519/00C07F9/6561C09K11/06H01L51/0052H01L51/0058H01L51/0067H01L51/0071C09K2211/1018H01L51/5012H01L51/5016H01L51/5072H01L51/5092H01L51/5096H01L51/5278
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Quick Facts
Patent No.
US 11,552,255
App. No.
16/348,733
Granted
Jan 10, 2023
Kind
B2
Abstract

The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.

Claims (31)

1. A hetero-cyclic compound represented by the following Chemical Formula 1:

wherein, in Chemical Formula 1,

at least one of R1 to R5 is represented by -(L1)p-(Z1)q, and the rest are hydrogen or deuterium;

L1 is a direct bond; a substituted or unsubstituted C 6 to C 60 arylene group; or a C 2 to C 60 heteroarylene group;

Z1 is selected from the group consisting of —CN; a substituted or unsubstituted C 6 to C 60 aryl group; and a substituted or unsubstituted C 2 to C 60 heteroaryl group;

p is an integer of 1 to 4;

q is an integer of 1 to 4;

R6 to R13 are the same as or different from each other, and each independently selected from the group consisting of hydrogen; or deuterium; and

m and n are each independently an integer of 0 to 5.

2. The hetero-cyclic compound of claim 1 , wherein R3 of R1 to R5 of Chemical Formula 1 is represented by -(L1)p-(Z1)q, and the rest are hydrogen, and

L1, Z1, p and q have the same definitions as in claim 1 .

3. The hetero-cyclic compound of claim 1 , wherein R1, R2, R4, R5, and R6 to R13 of Chemical Formula 1 are each independently hydrogen or deuterium.

4. The hetero-cyclic compound of claim 1 , wherein R4 of R1 to R5 of Chemical Formula 1 is represented by -(L1)p-(Z1)q, and the rest are hydrogen, and

L1, Z1, p and q have the same definitions as in claim 1 .

5. The hetero-cyclic compound of claim 1 , wherein R1, R2, R3, R5, and R6 to R13 of Chemical Formula 1 are each independently hydrogen or deuterium.

6. The hetero-cyclic compound of claim 1 , wherein Chemical Formula 1 is represented by any one of the following compounds:

7. An organic light emitting device comprising:

an anode;

a cathode; and

one or more organic material layers provided between the anode and the cathode,

wherein one or more layers of the organic material layers comprise the hetero-cyclic compound of claim 1 .

8. The organic light emitting device of claim 7 , wherein the organic material layer comprises at least one of a hole blocking layer, an electron injection layer and an electron transfer layer, and at least one of the hole blocking layer, the electron injection layer and the electron transfer layer comprises the hetero-cyclic compound.

9. The organic light emitting device of claim 7 , wherein the organic material layer comprises a light emitting layer, and the light emitting layer comprises the hetero-cyclic compound.

10. The organic light emitting device of claim 7 , wherein the organic material layer comprises at least one of a hole injection layer, a hole transfer layer, and a layer carrying out hole injection and hole transfer at the same time, and at least one of the hole injection layer, the hole transfer layer, and the layer carrying out hole injection and hole transfer at the same time comprises the hetero-cyclic compound.

11. The organic light emitting device of claim 7 , wherein the organic material layer comprises a charge generation layer, and the charge generation layer comprises the hetero-cyclic compound.

12. The organic light emitting device of claim 7 comprising:

an anode;

a first stack provided on the anode and comprising a first light emitting layer;

a charge generation layer provided on the first stack;

a second stack provided on the charge generation layer and comprising a second light emitting layer; and

a cathode provided on the second stack.

Assignments (2)
CHANGE OF NAME Recorded Feb 13, 2020
From: HEESUNG MATERIAL LTD.
To: LT MATERIALS CO., LTD.
Reel/Frame 051926/0419 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2019
From: LA, HYUN-JU; HEO, YU-JIN; JEONG, WON-JANG; CHOI, JIN-SEOK; CHOI, DAE-HYUK; LEE, JOO-DONG
To: HEESUNG MATERIAL LTD.
Reel/Frame 049137/0908 →
Priority Claims (2)
KR 10-2016-0162219 · Nov 30, 2016 · national
KR 10-2017-0135667 · Oct 19, 2017 · national
Continuity (1)
Related Publication 20190288218A1 · Sep 19, 2019