DRIVER CIRCUIT AND DISPLAY DEVICE
First Claim
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1. A driver circuit comprising:
- an inverter circuit including a first enhancement transistor and a second enhancement transistor;
a silicon oxide film including an OH group on and in contact with a first oxide semiconductor film of the first enhancement transistor and a second oxide semiconductor film of the second enhancement transistor; and
a silicon nitride film on and in contact with the silicon oxide film.
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Abstract
The driver circuit includes an inverter circuit having a first thin film transistor including a first oxide semiconductor film and a second transistor including a second oxide semiconductor film. The first thin film transistor and the second thin film transistor are enhancement transistors, in which a silicon oxide film including an OH group is provided on and in contact with the first oxide semiconductor film and the second oxide semiconductor film, and a silicon nitride film is provided on and in contact with the silicon oxide film.
175 Citations
21 Claims
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1. A driver circuit comprising:
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an inverter circuit including a first enhancement transistor and a second enhancement transistor; a silicon oxide film including an OH group on and in contact with a first oxide semiconductor film of the first enhancement transistor and a second oxide semiconductor film of the second enhancement transistor; and a silicon nitride film on and in contact with the silicon oxide film. - View Dependent Claims (2, 3, 4, 5)
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6. A driver circuit comprising:
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an inverter circuit including a first enhancement transistor and a second enhancement transistor; a switch including a third enhancement transistor, the switch being electrically connected with the inverter circuit; a silicon oxide film including an OH group on and in contact with a first oxide semiconductor film of the first enhancement transistor and a second oxide semiconductor film of the second enhancement transistor; and a silicon nitride film on and in contact with the silicon oxide film. - View Dependent Claims (7, 8, 9, 10)
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11. A driver circuit comprising:
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an inverter circuit including a first enhancement transistor and a second enhancement transistor; a switch including a third enhancement transistor, the switch being electrically connected with the inverter circuit; a first silicon oxide film including an OH group on and in contact with a first oxide semiconductor film of the first enhancement transistor and a second oxide semiconductor film of the second enhancement transistor; a first silicon nitride film on and in contact with the first silicon oxide film; a second silicon oxide film including an OH group on and in contact with a third oxide semiconductor film of the third enhancement transistor; and a second silicon nitride film on and in contact with the second silicon oxide film. - View Dependent Claims (12, 13, 14, 15)
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16. A display device comprising:
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a driver circuit over a substrate, the driver circuit comprising; an inverter circuit including a first enhancement transistor and a second enhancement transistor; a silicon oxide film including an OH group on and in contact with a first oxide semiconductor film of the first enhancement transistor and a second oxide semiconductor film of the second enhancement transistor; a silicon nitride film on and in contact with the silicon oxide film; and a pixel portion including a third enhancement transistor over the substrate. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification