PURPOSE: To increase efficiency of charging to a liquid crystal layer for each unit of time by forming a gate-on pulse into pulse wave forms divided in multiple parts within one horizontal time.
CONSTITUTION: Gate-on pulses VG1 to VG4 are formed by inputting a clock signal CL shown by a No.5 waveform, data SP shown by a No.6 waveform, and a LOW signal shown by a No.7 waveform into their respective terminals of a line electrode drive circuit. Though a gate-on time of the gate-on pulses VG1 to VG4 is 24μs as before, a cut-off is provided during one-third of the gate-on time, i.e., a gate-off time of LOW level is provided during a middle time of approx. 8μs. Namely, the gate-on pulses VG1 to VG4 are formed with a pulse waveform divided into two with a gate-off time during a middle time of approx. 8μs. The pulse waveform may be divided in multiple parts at least within one horizontal time, and the number of divided parts are not limited.
KAWAGUCHI TAKAFUMI
TAKEDA SHIRO
TAKEDA MAKOTO
