Liquid crystal display device

摘要

It is an object to provide a liquid crystal display device including a thin film transistor with high electric characteristics and high reliability. As for a liquid crystal display device including an inverted staggered thin film transistor of a channel stop type, the inverted staggered thin film transistor includes a gate electrode, a gate insulating film over the gate electrode, a microcrystalline semiconductor film including a channel formation region over the gate insulating film, a buffer layer over the microcrystalline semiconductor film, and a channel protective layer which is formed over the buffer layer so as to overlap with the channel formation region of the microcrystalline semiconductor film.

主权项

1. A semiconductor device comprising:
a gate electrode; a gate insulating film over the gate electrode; a microcrystalline semiconductor film including a channel formation region over the gate insulating film; a channel protective layer over the channel formation region of the microcrystalline semiconductor film; a source region and a drain region over the channel protective layer; a source electrode and a drain electrode over the source region and the drain region; an insulating film over the channel protective layer, the source electrode, and the drain electrode; a pixel electrode over the insulating film, the pixel electrode being electrically connected to the source electrode or the drain electrode; a spacer over the pixel electrode, the spacer overlapping with the gate electrode; a counter electrode over the spacer; and a light blocking film, a first color filter film, and a second color filter film over the counter electrode, wherein the light blocking film includes a region overlapping with the spacer, wherein each of the first color filter film and the second color filter film overlaps with the region, and wherein an entire portion of the microcrystalline semiconductor film is overlapped with the gate electrode.