OLED with compact contact design and self-aligned insulators

摘要

OLEDs and techniques for fabricating OLEDs are provided, in which the OLED has a shortest lateral current path through an active region that is longer than the shortest lateral electric field line within the active region. Such configurations prevent “hot spots” in the OLED panel, leading to a more uniform emission by the panel.

主权项

1. An organic light emitting device comprising:
a substrate; an anode contact; a cathode contact; and a pixel; wherein the pixel comprises:
an anode;a cathode; andan active region disposed between the anode and the cathode; wherein within the active region, the shortest lateral current path is longer than the shortest lateral electric field line drawn between a point where the anode contact is in physical contact with the anode and a point where the cathode contact is in physical contact with the cathode.