| abstract |
An object of the present invention is to propose a liquid crystal display device including a thin film transistor which can suppress a decrease in yield and suppress an increase in manufacturing cost, and which has high electrical characteristics and can reduce off-state current. To do. A gate electrode provided over a substrate, a gate insulating film provided so as to cover the substrate and the gate electrode, a microcrystalline semiconductor film over the gate electrode through the gate insulating film, and a depression A first island-like semiconductor film and a second island-like semiconductor film, a conductive semiconductor film, and a conductive film provided in contact with the conductive semiconductor film. A thin film transistor in which the conductive semiconductor film is provided in contact with the gate insulating film between the first island-shaped semiconductor film and the second island-shaped semiconductor film. [Selection] Figure 6 |