Patent ID: 9331130
Filing Date: 2016-05-03
CPC Classification: G09G,H01L

Claim Text:
1. A display device comprising: a substrate; a transistor over the substrate; a first insulating film over the transistor; a first electrode over the first insulating film; a second insulating film over the first insulating film; and an EL layer over the first electrode, wherein the first insulating film comprises a first region and a second region, wherein the first region and the second insulating film overlap each other, wherein the second region and the second insulating film do not overlap each other, wherein the EL layer and the first region do not overlap each other, wherein the EL layer and the second region do not overlap each other, wherein the first region and the second region are located at a periphery of the substrate, and wherein a ratio of a channel width to a channel length of the transistor is lower than or equal to 0.214.