Organic electroluminescent materials and devices
US-2020354392-A1 · Nov 12, 2020 · US
Organic metal compound, organic light emitting diode and organic light emitting device having the compound
US12484436B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12484436-B2 |
| Application number | US-202117495350-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 6, 2021 |
| Priority date | Dec 22, 2020 |
| Publication date | Nov 25, 2025 |
| Grant date | Nov 25, 2025 |
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- Title
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- Abstract
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Abstract
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The present disclosure relates to an organic metal compound, an organic light emitting diode and an organic light emitting device having the compound, in particular, 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 metal compound selected from the following compounds: 2 . An organic light emitting diode 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 the organic metal compound of claim 1 . 3 . The organic light emitting diode of claim 2 , wherein the at least one emitting material layer includes a host and a dopant, and wherein the dopant includes the organic metal compound. 4 . The organic light emitting diode of claim 2 , wherein the emissive layer includes a first emitting part disposed between the first and second electrodes and including a first emitting material layer, a second emitting part disposed between the first emitting part and the second electrode and including a second emitting material layer and a first charge generation layer disposed between the first and second emitting parts, and wherein at least one of the first emitting material layer and the second emitting material layer includes the organic metal compound. 5 . The organic light emitting diode of claim 4 , 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 and the upper emitting material layer includes the organic metal compound. 6 . The organic light emitting diode of claim 4 , 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. 7 . An organic light emitting device comprising: a substrate; and an organic light emitting diode of claim 2 over the substrate.
Assignees
Inventors
Classifications
Triplet emission · CPC title
Tandem OLEDs · CPC title
characterised by the electroluminescent [EL] layers · CPC title
of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title
with oxygen · CPC title
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- What does patent US12484436B2 cover?
- The present disclosure relates to an organic metal compound, an organic light emitting diode and an organic light emitting device having the compound, in particular, 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…
- 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 C09K11/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 25 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).