Apparatus for eliminating ghost, shifting cache unit, LCD device and method

Abstract

The invention provides a device for eliminating remnant trace, a shift buffer unit, liquid crystal display equipment and a method. By only matching a delay discharge phenomenon of a high voltage source, which is generated by a power supply device in shutting off, the shift buffer unit is driven, any two signal sources in a plurality of signal sources form high quasi-bits so as to control a discharge switch module to charge and discharge pixel units. The invention not only can solve the problem of the remnant trace in shutting off, but also has the signal resetting function in startup.

Description

technical field [0001] The invention relates to a device, a shift register unit, a liquid crystal display device and a method for eliminating residual images, in particular to a shift register unit capable of eliminating shutdown residual images. Background technique [0002] Generally, a liquid crystal display (LCD) mostly uses a driving module (Driving Circuit) to control the generation of grayscale signals of a plurality of pixels (Pixels) on the panel of the liquid crystal display. The driving module mainly includes a gate driver (Gate Driver) circuit. Connect several scanning lines (or called gate lines) to respectively output gate pulse signal (Gate Pulse Signal) to each corresponding pixel, and a source driver (Source Driver) electrically connect several data lines (or called source line) to respectively transmit the data signal (Data Signal) to each corresponding pixel, and the intersection of each scanning line and each data line is also respectively connected to a ...

AI Technical Summary

Problems solved by technology

Moreover, the design of the gate drive circuit unit will inevitably increase the component cost of the XON circuit 9, and because an additional XON input signal needs to be used to control the charging and discharging of the pixels, it will increase the complexity of the system design.

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