Patent ID: 9240425
Filing Date: 2016-01-19
CPC Classification: H01L

Claim Text:
1. A method for manufacturing a light-emitting display device comprising the steps of: forming a first conductive film over a substrate having an insulating surface; performing a first photolithography step on the first conductive film to form a first gate layer and a second gate layer; forming a first insulating film over the first gate layer and the second gate layer; forming a semiconductor film over the first insulating film; forming a second conductive film over the semiconductor film; performing a second lithography step on the second conductive film to form a first source layer and a first drain layer of a first transistor comprising the first gate layer, and a second source layer and a second drain layer of a second transistor comprising the second gate layer; forming a second insulating film over the first transistor, the second transistor, and the semiconductor film; performing a third lithography step, after formation of the second insulating film, to form: forming a third conductive film over the second insulating film so as to cover the first opening, the second opening, the third opening, and the fourth opening; and performing a fourth lithography step on the third conductive film to form: wherein the first transistor and the second transistor comprise respectively a first region and a second region of the semiconductor layer; and wherein the semiconductor layer is continuously formed in the first region, in the second region, and along a path linking the first region and the second region.