发明名称 |
Pulse output circuit, shift register, and display device |
摘要 |
An object is to suppress change of a threshold voltage of a transistor in a shift register and to prevent the transistor from malfunctioning during a non-selection period. A pulse output circuit provided in the shift register regularly supplies a potential to a gate electrode of a transistor which is in a floating state so that the gate electrode is turned on during a non-selection period when a pulse is not outputted. In addition, supply of a potential to the gate electrode of the transistor is performed by turning on or off another transistor regularly.
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申请公布号 |
US7932888(B2) |
申请公布日期 |
2011.04.26 |
申请号 |
US20070871704 |
申请日期 |
2007.10.12 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAKE HIROYUKI |
分类号 |
G09G3/36 |
主分类号 |
G09G3/36 |
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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