Shift register and liquid crystal display device

Abstract

The invention relates to a shift register and a liquid crystal display device with the same. The liquid crystal display device comprises a liquid crystal panel and at least one scan drive circuit. Each scan drive circuit comprises a shift register. Each shift register comprises a plurality of shift register units. Each shift register unit receives two clock signals from an external circuit. Two adjacent shift register units receive opposing clock signals, and the front shift register unit outputs a signal serving a signal to be input into the rear shift register unit. Each shift register unit comprises a start circuit, a signal input circuit, a signal output circuit, and a control circuit. The signals output by the shift registers are uniform in low level. The liquid crystal display device with the shift register is more vivid and accurate in picture display.

Description

technical field [0001] The invention relates to a shift register and a liquid crystal display device using the shift register. Background technique [0002] At present, a thin film transistor (Thin Film Transistor, TFT) liquid crystal display device has gradually become a standard output device of various digital products. However, it needs to design an appropriate driving circuit to ensure its stable operation. [0003] Generally, the driving circuit of the liquid crystal display device includes at least one scanning driving circuit. The scanning driving circuit is used to control the on and off of the thin film transistor, and the scanning driving circuit uses a shift register as a core circuit unit. Usually, the shift register is composed of a plurality of shift register units connected in series, and the output signal of the previous shift register unit is the input signal of the latter shift register unit. The plurality of shift register units output a high potential ...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of inconsistency in the low potential of the output signal of the shift register in the prior art, it is necessary to provide a shift register in which the low potential of the output signal is consistent

[0005] In order to solve the problem of inaccurate display images caused by the inconsistency of the low potential of the shift register output signal of the prior art liquid crystal display device, it is also necessary to provide a clear and accurate liquid crystal display device

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