Driving circuit of liquid crystal panel

Abstract

The invention provides a driving circuit of a liquid crystal panel. The driving circuit comprises a gate driver, a source driver, a plurality of gating lines and a plurality of data lines, wherein a plurality of pixel units are defined by the gating lines and the data lines; each pixel unit comprises a thin film transistor, a public electrode, a pixel electrode and a correction capacitor; the thin film transistor is electrically connected with the gate driver and the source driver through one gating line and one data line respectively; the public electrode and the pixel electrode form a liquid crystal capacitor; the thin film transistor comprises a gate and a drain; and the correction capacitor is electrically connected between the gate and the drain for correcting parasitic capacitance formed by the gate and the drain due to structural characteristic. The influence of the parasitic capacitance on the thin film transistor is reduced by arranging the correction capacitor, so that the accuracy in control of the thin film transistor is improved, and phenomena of variation in transmittance and contrast abnormality caused by abnormal deflection of liquid crystal molecules are avoided.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a driving circuit of a liquid crystal panel. Background technique [0002] With the development of science and technology and the improvement of people's quality of life, liquid crystal displays have been seen everywhere in life, and people's requirements for liquid crystal displays are getting higher and higher, and people begin to pursue large display screens and fast response speeds. However, with the increase of the liquid crystal display panel, the complexity of wiring increases, and with the increase in the number of pixel electrodes driven by the TFT (Thin Film Transistor, thin film field effect transistor) substrate, the line delay and the existence of TFT parasitic capacitance bring The effect of the feedback voltage on each pixel electrode makes it more difficult to precisely control the pixel electrode. [0003] figure 1 It is a schematic diagram of the circuit...

AI Technical Summary

Problems solved by technology

Such an effect appears at the drain D side as V d The voltage drift of (N, j) increases the time that the liquid crystal molecules are in the deflected state, which means that the liquid crystal molecules that should not be deflected are deflected, which brings abnormal contrast display

Images