Patent ID: 6013928
Filing Date: 2000-01-11
Classification: G02F,G09G,H01L,H04N

Abstract:
A liquid crystal display device comprising:a pixel electrode;at least one thin film transistor for switching said pixel electrode;a liquid crystal layer adjacent to said pixel electrode,said thin film transistor comprising:a crystalline semiconductor layer formed on an insulating surface;a first pair of impurity regions formed in said crystalline semiconductor layer wherein said first pair of impurity regions are doped with an impurity having one conductivity type at a first concentration;a channel region formed in said crystalline semiconductor layer between said pair of impurity regions;a second pair of impurity regions formed between said first pair of impurity regions and said channel region wherein said second pair of impurity regions are doped with an impurity having said conductivity type at a second concentration smaller than said first concentration;a gate electrode adjacent to said channel region with a gate insulating film interposed therebetween;an interlayer insulating film formed over said crystalline semiconductor layer;an organic resin film formed over said interlayer insulating film, said organic resin film having a leveled upper surface;a pixel electrode formed over said organic resin film.