Patent ID: 7687404
Filing Date: 2010-03-30
Classification: H01L

Abstract:
1. A method for manufacturing a display device, comprising the steps of: forming a first base insulating film over a substrate; forming a second base insulating film over the first base insulating film; forming a semiconductor layer over the second base insulating film; forming a gate insulating film over the semiconductor layer; forming a gate electrode over the gate insulating film to overlap with at least a portion of the semiconductor layer; doping portions of the gate insulating film and the second base insulating film with at least one conductive type impurity; forming an opening portion by etching at least a part of the portions of the gate insulating film and the second base insulating film to expose the first base insulating film; simultaneously forming a contact hole different from the opening portion reaching the semiconductor layer in the gate insulating film with the step of forming the opening portion; forming an interlayer insulating film to cover the opening portion, the gate insulating film, and the gate electrode; and forming a light emitting element over the interlayer insulating film to overlap with at least a part of the opening portion.