| 摘要 |
PURPOSE: A shift register and a gate line driving device are provided to improve image quality by reducing an error that a gate line is turned on. CONSTITUTION: In a shift register and a gate line driving device, the gate of a first thin film transistor(M1) is connected to a first node. A source is connected to a clock signal terminal. The drain is connected to the output terminal. The gate of a second thin film transistor(M2) is connected to the feedback signal terminal of a feedback block. A source is connected to the first terminal. A drain is connected to the low level signal terminal. The gate of the third thin film transistor(M3) is connected to the feedback signal terminal. A source is connected to a second node. The drain is connected to a low level signal terminal. The second node is connected to the output terminal. A condenser(C1) is connected between the first node and the output terminal. A feedback module(1) is connected between a trigger signal terminal, a clock signal terminal, and the first node. The feedback module is connected to the common mode feedback block terminal and the trigger signal terminal. An on/OFF module(2) is connected to the clock signal terminal, the feedback module, and the output terminal. The on/off module is connected to the low level signal terminal. The feedback module pulls up the level of the first node. The feedback module outputs the common mode feedback block to the shift register. The on/OFF module maintains the output terminal of the shift register to a low level.
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