Inkjet‐Printed Lenses with Adjustable Contact Angle to Improve the Light Out‐Coupling of Organic Light‐Emitting Diodes

• Published in: Advanced engineering materials Vol. 23; no. 9
• Main Authors: Sachs, Ian, Fuhrmann, Marc, Verboven, Inge, Basak, Indranil, Deferme, Wim, Möbius, Hildegard
• Format: Journal Article
• Language: English
• Published: 01.09.2021
• Subjects: inkjet etching; inkjet printing; macrolenses; organic light-emitting diodes; silanization

The enhancement of the out‐coupling efficiency of organic light‐emitting diodes (OLEDs) is still the subject of research and development. Bottom‐emission OLEDs emit light through the glass substrate into air. Due to the difference of the refractive indices between glass and air, a significant amount...