Liquid crystal display device and grid signal compensation method

The invention discloses a liquid crystal display device, comprising a panel, a grid driving module and a control module; the control module comprises a driving module, a data processing module and a correction circuit; the data processing module comprises a first lockup table, a second lookup table and a compensation module; the first lookup table comprises a plurality of first compensation coefficients corresponding to a plurality of display areas; the second lookup table comprises a plurality of second compensation coefficients corresponding to a plurality of gray scale values of an original grid signal; the compensation module is used for performing compensation on the corrected grid signal according to the corresponding the plurality of first compensation coefficients and the plurality of the second compensation coefficients to generate compensation grid signals.