Shift register

Abstract

The invention discloses a shift register, which comprises an input end, an output end, an enabling controller, a pre-charging circuit, a first switch, a second switch and a third switch, wherein the input end is used for receiving a first driving signal; the output end is used for outputting a second driving signal; the enabling controller is coupled to the input end of the shift register and is used for outputting an enabling signal when receiving the first driving signal; the enabling signal is of opposite phase to the first driving signal; the pre-charging circuit comprises the input end, the output end, a receiving module, a starting module and a resetting module; the receiving module receives the driving signal received by the pre-charging circuit and outputs the received driving signal to the starting module; the starting module is used for outputting a pre-charging signal when receiving the driving signal; and the resetting module is coupled between the receiving module and the starting module and is used for receiving a resetting signal to reset the pre-charging signal. The shift register of the invention has a relatively higher driving force.

Description

[0001] This application is a divisional application against the parent application (application number: 200710198744.9, invention name: shift register and pre-charging circuit). technical field [0002] The invention relates to a shift register; in particular, to a shift register with more stable pre-charging potential. Background technique [0003] Please refer to figure 1 . figure 1 It is a schematic diagram of a shift register using N-type metal-oxide-semiconductor (MOS) transistor technology in the prior art. As shown in the figure, the shift register 100 includes an input terminal I, a node Z, a node N, an output terminal O, a pre-charging circuit 110, an enable controller 120 and three switches Q N2 , Q N3 , Q N4 . The input terminal I of the shift register 100 is used to receive the driving signal of the previous stage shift register, and the output terminal O is used to output the driving signal of the shift register 100 . The enabling controller 120 includes a...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a shift register to solve the problem of poor driving force of the shift register of the pre-charging circuit in the prior art

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