Shifting register unit, grid electrode driving circuit and display device

Abstract

The invention discloses a shifting register unit, a grid electrode driving circuit and a display device. The shifting register unit is provided with a capacity unit, one end of the capacity unit is connected with a same level output node, the other end of the capacity unit is connected with a pulling-up node, the shifting register unit further comprises a first pulling-down unit and a second pulling-down unit, wherein the first pulling-down unit comprises at least two first transistors, the second pulling-down unit comprises at least two second transistors, and the at least two first transistors are alternate in a breakover state under the control of respectively corresponding control signals, and alternately output low level signals to the same level output node when the same level output node is in a pulling-down state; the at least two second transistors are alternate in a breakover state under the control of respectively corresponding control signals, and alternately output the low level signals to the pulling-up node when the pulling-up node is in a pulling-down state.

Description

technical field [0001] The invention relates to a shift register technology, in particular to a shift register unit, a gate drive circuit and a display device. Background technique [0002] The integrated gate shift register integrates the gate pulse output register on the panel, which saves IC and reduces the cost. There are many ways to realize the integrated gate shift register, which can contain different transistors and capacitors. The commonly used structures are 12T1C, 9T1C, 13T1C and so on. [0003] Generally speaking, a shift register is composed of multi-level shift register units, and each level of shift register units only outputs a high-level signal in a very short time, and outputs a low-level signal at other times. Usually VSS signal. [0004] Prior art shift registers have at least the disadvantage of a relatively low product life, which is explained below. [0005] As mentioned above, the shift register unit of each stage only outputs a high-level signal ...

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Problems solved by technology

[0007] From the above description, it can be found that the gate of the pull-down transistor is in a high level state for a long time, which will cause the pull-down transistor to age faster than other transistors in the shift register unit, shortening the service life of the product

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