Organometallic compound and organic light-emitting device including the same
US-2022069237-A1 · Mar 3, 2022 · US
Organic metal compound, organic light emitting diode and organic light emitting device having the compound
US12545696B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12545696-B2 |
| Application number | US-202117532787-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 22, 2021 |
| Priority date | Dec 17, 2020 |
| Publication date | Feb 10, 2026 |
| Grant date | Feb 10, 2026 |
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- Title
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Abstract
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The present disclosure relates to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan. Ir(LA)m(LB)n [Formula 1]
First claim
Opening claim text (preview).
What is claimed is: 1 . An organic light emitting device comprising: a substrate; and a light emitting diode on the substrate and comprising: a first electrode; a second electrode facing the first electrode; and an emissive layer disposed between the first and second electrodes and including at least one emitting material layer, wherein the at least one emitting material layer includes an organic metal compound of compound 147 below: wherein the at least one emitting material layer includes a host and a dopant, and wherein the dopant includes the organic metal compound, and wherein the host is selected from 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP), 3,3′-bis(N-carbazolyl)-1,1′-biphenyl (mCBP), 1,3-bis(carbazol-9-yl)benzene (mCP), and 4,4′-Bis(carbazole-9-yl)-2,2′-dimethylbiphenyl (CDBP). 2 . The organic light emitting device of claim 1 , wherein the at least one emitting material layer includes a first emitting material layer and a second emitting material layer; the emissive layer includes: a first emitting part disposed between the first and second electrodes and including the first emitting material layer; and a second emitting part disposed between the first emitting part and the second electrode and including the second emitting material layer; and a first charge generation layer disposed between the first and second emitting parts, and at least one of the first emitting material layer or the second emitting material layers includes the organic metal compound. 3 . The organic light emitting device of claim 2 , wherein the second emitting material layer includes: a lower emitting material layer disposed between the first charge generation layer and the second electrode; and an upper emitting material layer disposed between the lower emitting material layer and the second electrode, and wherein one of the lower emitting material layer or the upper emitting material layer includes the organic metal compound. 4 . The organic light emitting device of claim 2 , wherein the emissive layer further includes: a third emitting part disposed between the second emitting part and the second electrode, and including a third emitting material layer; and a second charge generation layer disposed between the second and third emitting parts. 5 . The organic light emitting device of claim 1 , wherein the host is selected from 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP), 3,3′-bis(N-carbazolyl)-1,1′-biphenyl (mCBP) and 4,4′-Bis(carbazole-9-yl)-2,2′-dimethylbiphenyl (CDBP). 6 . The organic light emitting device of claim 1 , wherein the host comprises 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP).
Assignees
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Classifications
Active-matrix OLED [AMOLED] displays · CPC title
Triplet emission · CPC title
Tandem OLEDs · CPC title
characterised by the electroluminescent [EL] layers · CPC title
comprising iridium · CPC title
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- What does patent US12545696B2 cover?
- The present disclosure relates to an organic metal compound having the following structure of Formula 1, an organic light emitting diode (OLED) and an organic light emitting device that includes the organic metal compound. The OLED and the organic light emitting device including the organic metal compound can improve their luminous efficiency, luminous color purity and lifespan. Ir(LA)m(LB)n […
- Who is the assignee on this patent?
- Lg Display Co Ltd, Rohm & Haas Elect Materials Korea Ltd, Dupont Specialty Materials Korea Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07F15/0033. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 10 2026 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).