发明名称 PULSE OUTPUT CIRCUIT AND SHIFT REGISTER
摘要 <P>PROBLEM TO BE SOLVED: To provide a driver circuit which reduces a degree of characteristic deterioration of a thin-film transistor, reduces malfunctions within the circuit and guarantees higher-certainty operation. <P>SOLUTION: In a pulse output circuit provided in a shift register, a gate electrode of a transistor is brought into a floating state so as to turn on the gate electrode during a non-selection period, in which a pulse is not outputted. The gate electrode of the transistor is connected to a node, and a potential is supplied periodically to the node by providing a clock signal so as to be inputted to the gate electrode of the transistor. Furthermore, in the gate of a transistor which performs a boostrap operation, a transistor is provided whose gate is connected to a fixed potential. <P>COPYRIGHT: (C)2011,JPO&INPIT
申请公布号 JP2011030171(A) 申请公布日期 2011.02.10
申请号 JP20090206918 申请日期 2009.09.08
申请人 SEMICONDUCTOR ENERGY LAB CO LTD 发明人 MIYAKE HIROYUKI
分类号 H03K19/0175;G09G3/20;G09G3/30;H01L51/50;H03K19/094;H03K19/0948;H03K23/44 主分类号 H03K19/0175
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