Patent ID: 8022915

Claim:
A liquid crystal display driving device generating gate-on/off signals to drive liquid crystal comprising: a sequence recognition unit configured to recognize sequence of a pertinent gate driver IC from a plurality of gate driver ICs connected in series by one or more signal line patterns by a pulse width of a vertical start signal inputted in synchronization with a vertical synchronous signal, and to generate a carry signal and location data of the pertinent gate driver IC a gate on-off voltage generation unit for receiving a first gate-off voltage and the location data of the pertinent gate driver IC, and outputting a second gate-off voltage which is generated by subtracting a voltage attenuation quantity corresponding to the location data of the gate driver IC from the first gate-off voltage, wherein the voltage attenuation quantity is calculated by multiplying the voltage of the signal line patterns by the number of gate driver ICs of the series remaining in the current downstream with respect to the location of the gate driver IC without having to require the resistance in the gate driver IC to coincide with the resistance of the signal line patterns.