| 摘要 |
PROBLEM TO BE SOLVED: To eliminate generation of a reference voltage and avoid deterioration of a liquid crystal by providing a driving circuit with a d.c.-choke filter which removes a d.c. component of a driving signal and supplying the signal to a liquid crystal panel element. SOLUTION: A liquid crystal-driving circuit 15 has a driving signal-generating circuit 35. A d.c.-choke circuit 36 of a capacitor Ci and a resistor Ri (i=1-3) is constituted between the driving signal-generating circuit 35 and a driving signal output terminal to each channel. A tilt signal, a bias signal and a clock signal are supplied to the driving signal-generating circuit 35 from a control part. The bias signal indicates a bias point for operating a liquid crystal panel, which is changed in accordance with a temperature characteristic of a liquid crystal by the control of the control part. A signal for correcting a phase in conformity with a tilt correction value is supplied as the tilt signal. The driving signal circuit 35 generates a bias voltage according to the bias signal supplied from the control part and, the bias voltage is changed in accordance with the temperature characteristic of the liquid crystal. |
