Semiconductor device and method for manufacturing semiconductor device
First Claim
1. An electronic device comprising:
- a band portion; and
a display portion comprising;
a pixel portion comprising;
a first gate electrode layer;
a first oxide semiconductor layer over the first gate electrode layer; and
a pixel electrode layer over the first oxide semiconductor layer, the pixel electrode layer being electrically connected to the first oxide semiconductor layer; and
a driver circuit comprising;
a second gate electrode layer and a third gate electrode layer overlapping each other; and
a second oxide semiconductor layer between the second gate electrode layer and the third gate electrode layer.
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Abstract
An aperture ratio of a semiconductor device is improved. A driver circuit and a pixel are provided over one substrate, and a first thin film transistor in the driver circuit and a second thin film transistor in the pixel each include a gate electrode layer, a gate insulating layer over the gate electrode layer, an oxide semiconductor layer over the gate insulating layer, source and drain electrode layers over the oxide semiconductor layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer over the gate insulating layer, the oxide semiconductor layer, and the source and drain electrode layers. The gate electrode layer, the gate insulating layer, the oxide semiconductor layer, the source and drain electrode layers, and the oxide insulating layer of the second thin film transistor each have a light-transmitting property.
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Citations
18 Claims
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1. An electronic device comprising:
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a band portion; and a display portion comprising; a pixel portion comprising; a first gate electrode layer; a first oxide semiconductor layer over the first gate electrode layer; and a pixel electrode layer over the first oxide semiconductor layer, the pixel electrode layer being electrically connected to the first oxide semiconductor layer; and a driver circuit comprising; a second gate electrode layer and a third gate electrode layer overlapping each other; and a second oxide semiconductor layer between the second gate electrode layer and the third gate electrode layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device comprising:
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a band portion; and a display portion comprising; a gate electrode layer of a transistor of a pixel portion over a substrate; a first gate electrode layer of a transistor of a driver circuit over the substrate; a gate insulating layer over the gate electrode layer of the transistor of the pixel portion and the first gate electrode layer of the transistor of the driver circuit; a first oxide semiconductor layer over the gate insulating layer, the first oxide semiconductor layer overlapping the gate electrode layer of the transistor of the pixel portion; a second oxide semiconductor layer over the gate insulating layer, the second oxide semiconductor layer overlapping the first gate electrode layer of the transistor of the driver circuit; an insulating layer over the first oxide semiconductor layer and the second oxide semiconductor layer; a second gate electrode layer of the transistor of the driver circuit over the insulating layer, the second gate electrode layer overlapping the second oxide semiconductor layer; and a pixel electrode layer over the insulating layer, the pixel electrode layer being electrically connected to the first oxide semiconductor layer, wherein the second gate electrode layer and the pixel electrode layer do not overlap each other, and wherein the pixel electrode layer is configured to transmit light. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification