Patent ID: 11955537
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A display device comprising:
a first conductive layer;
a second conductive layer;
an oxide semiconductor layer over and in contact with the first conductive layer and the second conductive layer, the oxide semiconductor layer comprising a channel formation region of a first transistor;
a third conductive layer over the oxide semiconductor layer, the third conductive layer comprising a gate electrode of the first transistor;
a first insulating layer over and in contact with the third conductive layer;
a fourth conductive layer over and in contact with the first insulating layer, the fourth conductive layer being electrically connected to the second conductive layer through a first contact hole formed in the first insulating layer;
a fifth conductive layer electrically connected to the fourth conductive layer through a second contact hole formed in the first insulating layer, the fifth conductive layer comprising a first electrode of a capacitor;
a sixth conductive layer comprising a second electrode of the capacitor under the fifth conductive layer; and
a seventh conductive layer comprising a power supply line,
wherein the oxide semiconductor layer comprises indium, gallium, and zinc,
wherein the first insulating layer is over and in contact with the fifth conductive layer, and
wherein the sixth conductive layer is electrically connected to the seventh conductive layer.