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.
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Date
Description
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