Patent ID: 8054286
Filing Date: 2011-11-08
Classification: G09G

Abstract:
1. A liquid crystal display, comprising: a liquid crystal panel comprising at least one pixel block; a source driver configured to drive the at least one pixel block to display images; a backlight module comprising at least one light source block; a backlight driver configured to drive the at least one light source block to emit light; and a data processor configured to provide gray level values to the source driver and provide a backlight control signal to the backlight driver; wherein the data processor is configured to receive display signals corresponding to the at least one pixel block, convert the display signals to a plurality of primary gray level values, and average the primary gray level values to obtain an average gray level value, the source driver and the backlight driver are configured to respectively generate data voltages and driving voltages to drive the at least one pixel block and the at least one light source block according to the average gray level value; wherein the data processor comprises a calculation unit and a look up table, the calculation unit is configured to carry out a predetermined calculation by applying the average gray level value to each primary gray level value of the at least one pixel block, the calculation is subtracting the average gray level value from each primary gray level value of the at least one pixel block, and the look up table comprises a plurality of gray level adjusting coefficients, each of which corresponds to a result of the subtraction of the average gray level value from each primary gray level value of the at least one pixel block.