Light emitting diode and condensed polycyclic compound for the same
US12378469B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 3, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A light emitting diode includes a first electrode, a second electrode, and at least one functional layer disposed between the first electrode and containing a condensed polycyclic compound represented by Formula 1. The first electrode and the second electrode each independently contain at least one selected from Ag, Mg, Cu, Al, Pt, Pd, Au, Ni, Nd, Ir, Cr, Li, Ca, LiF, Mo, Ti, W, In, Sn, and Zn, compounds selected thereof, and mixtures thereof. The light emitting diode may achieve improved luminous efficiency:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.