Light-Emitting Device and Manufacturing Method Thereof, Lighting Device, and Display Device

摘要

In a light-emitting device, an insulating separation layer whose upper portion protrudes more than a bottom portion in a direction parallel to a substrate is provided on and in contact with a common wiring provided over the substrate. An EL layer provided over the separation layer on the common wiring is physically divided by the separation layer. An upper electrode layer formed in the same position is also physically divided by the separation layer and is in contact with the common wiring in a region overlapped with the most protruding portion of the separation layer. Such a common wiring may be used as an auxiliary wiring. Further, such a light-emitting device may be applied to a lighting device and a display device.