Search International and National Patent Collections

1. (WO2017036800) ORGANIC LIGHT-EMITTING DIODE AND VEHICLE EXTERIOR LIGHTING

Pub. No.:    WO/2017/036800    International Application No.:    PCT/EP2016/069524
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Thu Aug 18 01:59:59 CEST 2016
IPC: H01L 51/52
Applicants: OSRAM OLED GMBH
Inventors: LANG, Erwin
FLEISSNER, Arne
INGLE, Andrew
Title: ORGANIC LIGHT-EMITTING DIODE AND VEHICLE EXTERIOR LIGHTING
Abstract:
The organic light-emitting diode (1) has a first electrode (21) with a first electric conductivity and a second electrode (22) with a second lower electric conductivity. An organic layer stack (4) for generating light is located between the electrodes (21, 22). The light-emitting diode (1) further comprises a current distribution layer (3) with a third high electric conductivity. When seen in a plan view, multiple contact regions (33) are located outside of an outer contour line (40) of the layer stack (4). The second electrode (22) and the current distribution layer (3) contact each other in the contact regions (33). In a current blocking region (34), the current distribution layer (3) is located entirely within the contour line (40) such that the second electrode (22) is electrically disconnected from the current distribution layer (3). The luminous intensity of a lighting surface (11) of the light-emitting diode (1) is preferably set in a controlled manner via the distribution of the contact regions (33) and the current blocking regions (34).