To control the frequency and timing of output pulses from the outside.

The timing generator 3 that an LCD display system having an LCD panel 2, a driver 1 driving the LCD panel 2, and the timing generator for LCD driving uses is provided with an external data input means which receives data for control such as a set value, etc., of an internal counter and a data table which holds the data for control; and the output frequency and output timing of internal pulses are controlled with the data for control. Therefore, the timing generator 3 of one type can drive a plurality of types of LCD panels 2 and one system can drive a plurality of types of LCD panels 2.