Patent ID: 7362302

Claim:
A liquid crystal display, comprising: a DC/DC converter configured to generate, from an input voltage, respective voltages for a signal line driving circuit, a gate line driving circuit, and a counter electrode; a timing control circuit configured to generate, from input signals, respective control signals for the signal line driving circuit and the gate line driving circuit, a PLL circuit configured to receive any one of said input signals, the input signals having previously been synchronized, wherein the DC/DC converter is further configured to operate in synchronization with any one of the input signals, wherein the signal line driving circuit is configured to receive said respective voltage and control signal and configured to output a signal line voltage to a signal line, wherein the gate line driving circuit is configured to input said respective voltage and control signal and configured to output a gate line voltage to a gate line, and wherein a phase of switching frequency of said respective voltages for the signal line driving circuit, the gate line driving circuit, and the counter electrode are synchronized with a phase of said respective control signals for the signal line driving circuit and the gate line driving circuit.