发明授权
- 专利标题: Shift register circuit
- 专利标题(中): 移位寄存器电路
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申请号: US13455808申请日: 2012-04-25
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公开(公告)号: US09336897B2公开(公告)日: 2016-05-10
- 发明人: Youichi Tobita , Isao Nojiri , Seiichiro Mori , Takashi Miyayama
- 申请人: Youichi Tobita , Isao Nojiri , Seiichiro Mori , Takashi Miyayama
- 申请人地址: JP Tokyo
- 专利权人: MITSUBISHI ELECTRIC CORPORATION
- 当前专利权人: MITSUBISHI ELECTRIC CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权: JP2009-281925 20091211
- 主分类号: G11C19/00
- IPC分类号: G11C19/00 ; G11C19/28 ; G09G3/36 ; G11C19/18 ; G09G3/32
摘要:
A shift register circuit comprises a first transistor connected between a clock terminal and an output terminal, a second transistor for charging a control electrode of the first transistor in response to activation of an output signal of the preceding stage, a third transistor for discharging the control electrode of the first transistor, an inverter using a control electrode of the third transistor as an output end, and a fourth transistor which discharges an input end of the inverter at power-off and is turned off after power-on. A fifth transistor which is a load element of the inverter charges the control electrode of the third transistor at power-on. It is thereby possible to initialize the respective levels of the nodes without any external initialization signal and prevent a decrease in the level change rate of the output signal in the shift register circuit.
公开/授权文献
- US20120207266A1 SHIFT REGISTER CIRCUIT 公开/授权日:2012-08-16