LCD drive circuit

A liquid crystal driving circuit device which generates a drive signal for a liquid crystal display panel, comprising:

• AC generating means for generating an alternating current component of said drive signal;
• a capacitive element with one terminal connected with said AC generating means;
• a current limitation means with one terminal connected with other terminal of said capacitive element;
• and DC generating means for generating a direct current component of said drive signal, said DC generating means having an output connected with the other terminal of said current limitation means, wherein said capacitive element eliminates a direct current component of an output signal from said AC generating means, and wherein said current limitation means limits a current caused by a voltage difference between a voltage at the other terminal of said capacitive element and a voltage at said output, further wherein an amplitude value of the alternating current component from said AC generating means and an amplitude value of the alternating current component of a signal from said output of said DC generating means are approximately the same.