发明名称 |
Driver circuit, display device including the driver circuit, and electronic appliance including the display device |
摘要 |
An object of the present invention is to provide a driver circuit including a normally-on thin film transistor, which driver circuit ensures a small malfunction and highly reliable operation. The driver circuit includes a static shift register including an inverter circuit having a first transistor and a second transistor, and a switch including a third transistor. The first to third transistors each include a semiconductor layer of an oxide semiconductor and are depletion-mode transistors. An amplitude voltage of clock signals for driving the third transistor is higher than a power supply voltage for driving the inverter circuit. |
申请公布号 |
US8363778(B2) |
申请公布日期 |
2013.01.29 |
申请号 |
US201213552986 |
申请日期 |
2012.07.19 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;KOYAMA JUN;MIYAKE HIROYUKI |
发明人 |
KOYAMA JUN;MIYAKE HIROYUKI |
分类号 |
G11C19/00 |
主分类号 |
G11C19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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