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.
|
申请公布号 |
US2011193622(A1) |
申请公布日期 |
2011.08.11 |
申请号 |
US201113093002 |
申请日期 |
2011.04.25 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
MIYAKE HIROYUKI |
分类号 |
H01L25/00 |
主分类号 |
H01L25/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|