Patent ID: 7688304

Claim:
A liquid crystal display (LCD) device comprising: a liquid crystal panel assembly; a sensor which senses a temperature to determine a sensed temperature; an image signal modifying portion which receives image signals and the sensed temperature, calculates a plurality of modified reference data at the sensed temperature for a set of image signals of previous frames and current frames using coefficients of a quadratic expression of temperature, and generates a modified image signal at the sensed temperature according to the plurality of the modified reference data; and a data driving portion which converts the modified image signal into a data voltage and supplies the data voltage to the liquid crystal panel assembly, wherein each modified reference data of the plurality of modified reference data is equal to p 1 x 2 +p 2 x+p 3 , where p1, p2 and p3 are the coefficients of the quadratic expression, and x is the sensed temperature.