Method of manufacturing an OLED device

US11031579B2 · kind B2 · utility

Assignee

• LUMILEDS LLC · US

Inventors

• Florent Monestier · Aachen, DE
• Udo Karbowski · Aachen, DE

Key dates

• Filing date: Sep 14, 2018
• Grant date: Jun 8, 2021
• Expiry date: Sep 14, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/101

Abstract

The invention describes a method of manufacturing an OLED device (1) comprising an OLED (10) and an integrated negative overvoltage protection diode (11), which method comprises at least the steps of: depositing a first OLED electrode (100) and a separate second OLED electrode contact (101C) on a carrier (12), which second OLED electrode contact (101C) incorporates a first overvoltage protection diode electrode (110); depositing an organic material layer stack (14) to define an active region (14OLED) of the OLED (10) and an active region (14OPD) of the overvoltage protection diode (11); depositing a second OLED electrode (101) to extend over the active region (14OLED) of the OLED (10) and the second OLED electrode contact (101C); and depositing a second overvoltage protection diode electrode (111) to extend over the active region (14OPD) of the overvoltage protection diode (11) and the first OLED electrode (100).