Shifting register unit, driving method of shifting register unit, shifting register circuit and display device

Abstract

The invention provides a shifting register unit, a driving method of the shifting register unit, a shifting register circuit and a display device. The shifting register unit comprises a charging module, a pull-up module, a first pull-down control module, a second pull-down control module, a first pull-down module, a second pull-down module and a reset module. One end of the charging module is connected with an input end, the other end of the charging module is connected with a pull-up node, and the charging module is used for generating a pull-up signal; one end of the pull-up module is connected with the pull-up node, the other end of the pull-up module is connected with a first clock signal end, and the pull-up module is used for charging an output end; one end of the first pull-down control module is connected with a second clock signal end, the other end of the first pull-down control module is connected with a low-voltage end, and the first pull-down control module is used for generating a pull-down control signal; one end of the second pull-down control module is connected with a pull-down control node, the other end of the second pull-down control module is connected with the pull-up node, and the second pull-down control module is used for generating a pull-down signal; one end of the first pull-down module is connected with a first reset end, the other end of the first pull-down module is connected with the output end, and the first pull-down module is used for discharging the output end; one end of the second pull-down module is connected with a pull-down node, the other end of the second pull-down module is connected with the output end, and the second pull-down module is used for discharging the output end; one end of the reset module is connected with a second reset end, the other end of the reset module is connected with the pull-up node, and the reset module is used for resetting the pull-up node.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a shift register unit and a driving method thereof, a shift register circuit and a display device. Background technique [0002] Flat-panel displays are widely used because of their ultra-thin and energy-saving features. Shift registers are used in most flat-panel displays. The shift register implemented by the GOA (Gate Drive on Array) method can save the gate drive IC and reduce a manufacturing process, so it not only reduces the manufacturing cost of the flat-panel display. The cost also shortens the manufacturing cycle to a certain extent. [0003] Therefore, GOA technology has been widely used in the manufacture of flat panel displays in recent years. The power consumption of GOA itself is larger than that of ordinary gate drive ICs. In order to reduce the power consumption of the GOA unit itself, 4 or more clock (CLK) signals are often used (the number o...

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a shift register unit and its driving method, a shift register circuit, and a display device, which are used to solve the problems caused by the long falling edge time (Tf) of the gate drive signal in the prior art. The problem of short pixel effective charging time (Teff)

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