DISPLAY DEVICE AND ELECTRONIC DEVICE INCLUDING THE SAME
First Claim
1. A display device including a plurality of pixels, a plurality of signal lines, and a plurality of scan lines over a substrate, and comprising:
- transistors with a field effect mobility of 50 cm2/Vs or higher over the substrate; and
a gate driver and an analog switch each including at least one of the transistors, the analog switch being configured for driving a source line,wherein the transistors comprise an oxide semiconductor layer.
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Abstract
One embodiment of the present invention provides a highly reliably display device in which a high mobility is achieved in an oxide semiconductor. A first oxide component is formed over a base component. Crystal growth proceeds from a surface toward an inside of the first oxide component by a first heat treatment, so that a first oxide crystal component is formed in contact with at least part of the base component. A second oxide component is formed over the first oxide crystal component. Crystal growth is performed by a second heat treatment using the first oxide crystal component as a seed, so that a second oxide crystal component is formed. Thus, a stacked oxide material is formed. A transistor with a high mobility is formed using the stacked oxide material and a driver circuit is formed using the transistor.
29 Citations
19 Claims
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1. A display device including a plurality of pixels, a plurality of signal lines, and a plurality of scan lines over a substrate, and comprising:
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transistors with a field effect mobility of 50 cm2/Vs or higher over the substrate; and a gate driver and an analog switch each including at least one of the transistors, the analog switch being configured for driving a source line, wherein the transistors comprise an oxide semiconductor layer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device including a plurality of pixels, a plurality of signal lines, and a plurality of scan lines over a substrate, and comprising:
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transistors with a field effect mobility of at least 50 cm2/Vs or higher over the substrate; and a gate driver and a source driver each including at least one of the transistors, wherein the transistors comprise an oxide semiconductor layer. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A display device including a plurality of pixels, a plurality of signal lines, and a plurality of scan lines over a substrate, and comprising:
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a first transistor in one of the pixels, a gate driver including a second transistor, and a source driver including a third transistor, wherein each of the first to third transistors has a field effect mobility of 50 cm2/Vs or higher, and wherein each of the first to third transistors comprises an oxide semiconductor layer. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification