Shift register and control method thereof

Abstract

The invention relates to a shift register and a control method thereof. The shift register comprises a control circuit, a switching circuit, a driving circuit and a pull-down circuit. The control circuit is used for outputting high-level control signals during the pull-up period and the voltage stabilization period. The switching circuit is used for providing control voltage during the pull-up period according to the control signals and preceding stage signals output by preceding x stage shift registers. The driving circuit is used for generating a driving signal according to the control voltage provided by the switching circuit, and outputting a current stage scanning signal according to the driving signal. The pull-down circuit is used for pulling down the voltage level of the driving signal during the pull-down period according to scanning signals output by rear y stage shift registers. During the voltage stabilization period, the switching circuit carries out voltage stabilization to the driving signal and the current stage scanning signal according to the control signals and the preceding stage signals output by the preceding x stage shift registers. x is a positive integer which is larger than or equal to 1, and y is a positive integer which is larger than or equal to 1. The invention also provides a control method of the shift register.

Description

technical field [0001] The invention relates to a driving circuit of a display panel, in particular to a shift register and a control method thereof. Background technique [0002] Under the increasingly fierce competition in the panel industry, in order to meet the needs of consumers for electronic products, thinning has become the trend of current electronic products. The display panel industry has also followed the current trend and developed a gate driver on array (Gatedrive on Array, GOA) to make the panel thinner. The so-called GOA is to dispose the gate drive circuit on the array substrate to replace the drive chip made by external silicon chip. Since the GOA technology can be directly arranged around the panel, the production process is simplified, the integration of the display panel is improved, and the panel is thinner. [0003] In the shift register of the GOA circuit, since each function needs to be performed by an independent circuit, a large number of circuit...

AI Technical Summary

Problems solved by technology

[0003] In the shift register of the GOA circuit, since each function needs to be performed by an independent circuit, a large number of circuits will make the layout space of the overall circuit larger, which is not conducive to the production of thin and narrow-frame panels.

[0004] This shows that above-mentioned existing mode obviously still has inconvenience and defective, and needs to be improved

In order to solve the above problems, related fields have tried their best to find a solution, but a suitable solution has not been developed for a long time.

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