Patent ID: 11947228
Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. A semiconductor device comprising:
a pixel comprising a first transistor, a capacitor, and a pixel electrode layer; and
a scan line drive circuit comprising a second transistor,
wherein a first conductive layer is configured to be a gate of the first transistor,
wherein the first conductive layer and a first oxide semiconductor layer overlap with each other,
wherein a second conductive layer is configured to be one of a source and a drain of the first transistor,
wherein a third conductive layer is configured to be a gate of the second transistor,
wherein the third conductive layer and a second oxide semiconductor layer overlap with each other,
wherein a fourth conductive layer is configured to be one of a source and a drain of the second transistor,
wherein a fifth conductive layer is configured to be one electrode of the capacitor,
wherein a material of the fifth conductive layer is the same as a material of the first conductive layer and the third conductive layer,
wherein a sixth conductive layer is configured to be the other electrode of the capacitor,
wherein an oxide insulating layer comprises a region in contact with a peripheral portion and a side surface of the first oxide semiconductor layer,
wherein the oxide insulating layer comprises a region in contact with a peripheral portion and a side surface of the second oxide semiconductor layer,
wherein a seventh conductive layer and the second oxide semiconductor layer overlap with each other,
wherein a material of the seventh conductive layer is the same as a material of the pixel electrode layer,
wherein the second conductive layer is electrically connected to the first oxide semiconductor layer through a contact hole of the oxide insulating layer,
wherein the sixth conductive layer comprises a region in contact with an upper surface of a third oxide semiconductor layer,
wherein the pixel electrode layer is electrically connected to the second conductive layer, and
wherein the pixel electrode layer and the sixth conductive layer overlap with each other.