Patent ID: 9685129
Date: 2017-06-20
CPC Classifications: G09G

Claim:
1. A liquid crystal display device comprising a liquid crystal panel and displaying images on the liquid crystal panel, wherein the liquid crystal panel includes: a plurality of scanning lines; a plurality of signal lines that intersect with the plurality of scanning lines; and thin film transistors provided at points of intersection of the plurality of scanning lines and the plurality of signal lines, respectively, and are connected to pixel electrodes, the liquid crystal display device further comprising: a booster circuit that generates a driving voltage from a power source voltage; a scanning line drive unit that selects the plurality of scanning lines in order and controls operations of the thin film transistors using the driving voltage generated by the booster circuit; and a timing control unit that controls the scanning line drive unit based on a display signal that includes a horizontal synchronization signal, a vertical synchronization signal, and an image signal, the timing control unit realizing a driving period while control of the scanning line drive unit based on the display signal is carried out, and a pausing period while control of the scanning line drive unit based on the display signal is suspended, wherein the driving voltage includes: a selection voltage to be output to, among the plurality of scanning lines, one selected by the scanning line drive unit; and a non-selection voltage having a polarity opposite to that of the selection voltage, wherein, to the booster circuit, a reference synchronization signal is input, at least during the pausing period, wherein the booster circuit, during the pausing period, generates the non-selection voltage in synchronization with the reference synchronization signal, and wherein the scanning line drive unit, during the pausing period, outputs the non-selection voltage generated by the booster circuit to the plurality of scanning lines.