Patent ID: 8144105

Claim:
A liquid crystal display (LCD) device, comprising: a LCD module; a thermal sensor, disposed in the display module; an operating device calculating and outputting an overdrive voltage and a predicted value of a sub-frame of the LCD module according to a start level and an end level of an image data; and a frame memory storing the predicted value as the start level which is then outputted to the operating device; wherein the operating device comprises: a first comparator for determining whether the start level and the end level are consistent or not; a first lookup table being one-dimensional and showing the relationship between levels and normalized offsets which are used for standardizing curves associated with squares of voltages corresponding to the levels; a second lookup table being one-dimensional and showing the relationship between levels and squares of voltages corresponding to the levels; an operator for obtaining an intermediate output value for overdrive, which correlates to a specified square of voltage, by referring to the start level, the end level, and values of the first and second lookup tables; a second comparator for determining whether an output of the operator is greater than a predefined maximum, is less than a predefined minimum, or is an intermediate value; a third lookup table being one-dimensional and used for calculating an overdrive value to be referred to according to outputs of the first and second comparators; and a fourth lookup table being one-dimensional and used for calculating a predicted value to be referred to according to the outputs of the first and second comparator; and wherein the first to fourth lookup tables are dynamically updated in response to a value outputted by the thermal sensor; and the LCD device being characterized in comprising a selector/data-generator which differentially generates an overdrive output and a prediction output according to the outputs of the first comparator, the second comparator and the operator, depending on one of four conditions including: a first condition that the start level and the end level are consistent; a second condition that the intermediate output value for overdrive is greater than the predefined maximum; a third condition that the intermediate output value for overdrive is less than the predefined minimum; and a fourth condition that the intermediate output value for overdrive lies between the predefined maximum and the predefined minimum.