Electron Transport Layer Comprising A Matrix Compound Mixture For An Organic Light-Emitting Diode (Oled)
Patent No. EP3417495 (titled "Electron Transport Layer Comprising A Matrix Compound Mixture For An Organic Light-Emitting Diode (Oled)") was filed by Novaled on Feb 16, 2017. The application was issued on May 27, 2020.
Patent Summary
Organic light-emitting diode (OLED) with improved external quantum efficiency (EQE) and/or lower operating voltage, comprising an electron transport layer stack with at least two electron transport layers. The first electron transport layer contains a first organic aromatic matrix compound with a molecular weight of 400-1000 g/mol and a dipole moment of 0-2.5 D. The second electron transport layer contains a polar organic aromatic phosphine compound with a molecular weight of 400-1000 g/mol and a dipole moment of >2.5 D. The layers are contacting sandwiched between the emission layer and cathode electrode.
Patent Family
Patent Oppositions
Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
Dossier Documents
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents
EP3417495
- Application Number
- EP17704504A
- Filing Date
- Feb 16, 2017
- Status
- Opposition Rejected
- Sep 23, 2022
- Publication Date
- May 27, 2020
- External Links
- Slate, Register , Google Patents