Organic light emitting device, manufacturing method thereof, and display unit
AssigneeSony Corporation
InventorsHirokazu Yamada, Takashi Hirano, Kohji Hanawa
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Abstract
The invention provides an organic light emitting device which can electrically connect an auxiliary wiring and a second electrode without using a mask for pixel coating, a manufacturing method thereof, and a display unit. In organic light emitting devices, for example, a first electrode as an anode, an insulating film, an organic layer including a light emitting layer, and a second electrode as a cathode are layered in this order from a substrate side. The organic layer has a break part on a side face of an auxiliary wiring. The auxiliary wiring and the second electrode are electrically connected through this break part.
Claims10
A method of manufacturing an organic light emitting device comprising the steps of:
- forming a first electrode and an auxiliary wiring insulated from the first electrode on a substrate at the same time;
- forming an insulating film on a whole surface of the substrate after forming the first electrode and the auxiliary wiring;
- forming a first aperture corresponding to a light emitting region and a second aperture corresponding to the auxiliary wiring by selectively removing the insulating film covering the auxiliary wiring and the light emitting region;
- forming an organic layer including a light emitting layer on at least the first electrode and the auxiliary wiring, and forming a break part by covering only the top surface of the auxiliary wiring facing away from the substrate with the organic layer and leaving the side facing the auxiliary wiring exposed;
- and
- forming a second electrode on the organic layer, and electrically connecting the second electrode and the auxiliary wiring at the break part of the organic layer.
Dependencies are inferred from the claim text.