DISPLAY DEVICE AND ELECTRONIC APPLIANCE

摘要

A display device with low manufacturing cost, a display device with low power consumption, a display device capable of being formed over a large substrate, a display device with a high aperture ratio of a pixel, and a display device with high reliability are provided. The display device includes a transistor electrically connected to a light-transmitting pixel electrode and a capacitor. The transistor includes a gate electrode, a gate insulating film, and a first multilayer film including an oxide semiconductor layer. The capacitor includes the pixel electrode and a second multilayer film overlapping with the pixel electrode, positioned at a predetermined distance from the pixel electrode, and having the same layer structure as the first multilayer film. A channel formation region of the transistor is at least one layer, which is not in contact with the gate insulating film, of the first multilayer film.

主权项

1. A display device comprising:
a transistor comprising:
a gate electrode;a first multilayer film comprising an oxide semiconductor layer comprising a channel formation region of the transistor; anda gate insulating film between the gate electrode and the first multilayer film; a pixel electrode electrically connected to the transistor; and a capacitor comprising a second multilayer film overlapping with the pixel electrode, wherein the first multilayer film comprises the same layer structure as the second multilayer film, and wherein the oxide semiconductor layer is provided apart from the gate insulating film.