TWI456555B - Display system - Google Patents

Claims (10)

A display system comprising: a timing controller for generating a start signal and a clock signal; a scan driver for generating a plurality of scan signals according to the start signal and the clock signal; and a data driver for generating a plurality of data signals; The pixels receive the data signals according to the scan signals, and each pixel includes: a liquid crystal component disposed between the pixel electrodes and a first common electrode, the pixel electrodes receiving the data signals a first data signal, the first common electrode receiving a common signal; and an adjusting device for controlling a voltage difference between the first data signal and the common signal according to the start signal and the clock signal. The display system of claim 1, wherein the adjusting device generates an adjustment signal for controlling at least one of the first data signal and the common signal according to the start signal and the clock signal. The display system of claim 2, wherein the data driver controls the level of the first data signal according to the adjustment signal, wherein the adjustment signal is related to a distance, wherein the distance is in the pixels a distance between the first pixel and the data driver, the first pixel receiving the first data signal. The display system of claim 2, further comprising a voltage generator for adjusting the common signal according to the adjustment signal, wherein the adjustment signal is related to a distance, wherein the distance is in the pixels a distance between the first pixel and the data driver, the first pixel receiving the first data signal. The display system of claim 2, wherein the adjusting device comprises: a timing gain adjusting circuit, comprising: a counting unit, counting the number of pulses of the clock signal, for generating at least one count value, and having Receiving, at least one reset end, the start signal for resetting the count value; a gain adjustment unit providing at least one impedance value according to the count value; and an operational amplifier generating the adjustment signal according to the impedance value . The display system of claim 5, wherein the timing gain adjustment circuit 200 is a digital analog converter, and includes: a plurality of resistors arranged in series; and a plurality of first stage switches coupled to the And a plurality of second-stage switches coupled between the first node and the plurality of second nodes, wherein the number of the second-stage switches is the first-stage switches Half of the number. The display system of claim 5, wherein the gain adjustment unit comprises: a first variable resistor, according to the count value, providing a first impedance value; a second variable resistor, connecting the first And a variable resistor, and according to the count value, providing a second impedance value, the operational amplifier generating the adjustment signal according to the first and second impedance values. The display system of claim 7, wherein each pixel further comprises: a storage capacitor coupled between the pixel electrode and a second common electrode. The display system of claim 8, wherein the first variable resistor is coupled between a ground level and an inverting input of the operational amplifier, and the second variable resistor is coupled to the Between the inverting input terminal and one of the operational amplifiers, one of the operational amplifiers has a non-inverting input coupled to the second common electrode. The display system of claim 8, wherein the first variable resistor is coupled between the second common electrode and one of the inverting input terminals of the operational amplifier, and the second variable resistor is coupled to Between the inverting input terminal and one of the output terminals of the operational amplifier, a non-inverting input terminal of the operational amplifier is coupled to the first common electrode.