Patent ID: 8854287

Claim:
A display device comprising: a plurality of gate lines; a plurality of data lines; and a pixel connected to one of the plurality of gate lines and one of the plurality of data lines, the pixel comprising first and second sub-pixels, wherein the first sub-pixel comprises: a first thin film transistor having control and input terminals connected to at least one of the gate and data lines, respectively; and a first liquid crystal capacitor and a first variable capacitor respectively connected to an output terminal of the first thin film transistor, and wherein the second sub-pixel comprises: a second thin film transistor having control and input terminals connected to at least one of the gate and data lines, respectively; and a second liquid crystal capacitor and a second variable capacitor respectively connected to an output terminal of the second thin film transistor, wherein the first and second variable capacitors are formed each with a thin film transistor comprising a gate electrode, a semiconductor layer, a source electrode, and a drain electrode, wherein the source and drain electrodes are electrically connected to each other, and wherein the first and second variable capacitors have a first capacitance when a voltage applied to the gate electrode reaches or exceeds a predetermined voltage, and the first and second variable capacitors have a second capacitance when the voltage applied to the gate electrode is less than the predetermined voltage.