Patent ID: 7883912
Filing Date: 2011-02-08
Classification: C25D,G02F,H01L

Abstract:
1. A method for manufacturing a display device, comprising the steps of: selectively forming a gate electrode by a droplet discharge method over a substrate; forming a gate insulating layer over the gate electrode; forming a first semiconductor layer over the gate insulating layer; selectively forming a channel protective layer by a droplet discharge method over an area which is overlapped with the gate electrode over the first semiconductor layer; forming a second semiconductor layer containing an impurity having one conductivity type over the first semiconductor layer and the channel protective layer; selectively forming a first mask layer over the second semiconductor layer; etching the first semiconductor layer, the second semiconductor layer, and the gate insulating layer with the use of the first mask layer; selectively forming a first insulating layer by a droplet discharge method over the gate electrode; selectively forming source and drain wirings by a droplet discharge method; etching the second semiconductor layer over the channel protective layer; forming a passivation film over an entire surface of the substrate; selectively forming a second insulating layer over the passivation film by a droplet discharge method; etching the passivation film over the drain wiring; and forming a transparent conductive film over the second insulating layer so as to connect to the drain wiring.