Liquid crystal display and method of driving the same

PURPOSE: A liquid crystal display device and a driving method thereof improve the color of yellow through tone movement while maintaining the brightness of white. CONSTITUTION: Multiple look-up tables are stored in a memory. An image signal modification unit computes a modification look-up table by a linear interpolation method based on a first look-up table and a second look-up table among the look-up tables and outputs a modified image signal by modifying an input image signal based on the modification look-up table. A data driving unit (500) converts the modified image signal into a data voltage and supplies the data voltage to a pixel. [Reference numerals] (400) Gate driving unit; (500) Data driving unit; (600) Signal control unit; (800) Grey level voltage generation unit