Optoelectronic component with multilayer encapsulant CTE matched to electrode

US10361396B2 · kind B2 · utility

Assignee

• Osram OLED GMBH · DE

Inventors

• Michael Popp · Birkenfeld, DE
• Richard Baisl · Regensburg, DE
• Christoph Kefes · Regensburg, DE

Key dates

• Filing date: Feb 26, 2015
• Grant date: Jul 23, 2019
• Expiry date: Nov 26, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50

Abstract

An optoelectronic component may include a carrier, a first electrode over the carrier, an organically functional layer structure over the first electrode, a second electrode over the organically functional layer structure, and an encapsulation layer structure over the second electrode, the encapsulation layer structure encapsulating the organically functional layer structure and including a first layer structure facing toward the second electrode and a second layer structure facing away from the second electrode, the first layer structure alternately including first layers having a first expansion coefficient and second layers having a second expansion coefficient, which is not equal to the first expansion coefficient, and the second layer structure alternately including third layers having a third expansion coefficient and fourth layers having a fourth expansion coefficient, which is not equal to the third expansion coefficient.