b626bc89_tsugi_JP___Patent_applications__Description
[Patent application number] 20100084650 [Published] 04-08-2010 [Description] 
DISPLAY DEVICE - A pixel portion and a driver circuit driving the pixel portion are formed over the same substrate. At least a part of the driver circuit is formed using an inverted staggered thin film transistor in which an oxide semiconductor layer is used and a channel protective layer is provided over the oxide semiconductor layer serving as a channel formation region which is overlapped with the gate electrode. The driver circuit as well as the pixel portion is provided over the same substrate to reduce manufacturing costs.
Kengo Akimoto, Atsugi JP - Patent applications