Patent ID: 7688294

Claim:
A method of driving a liquid crystal display, comprising: (A) converting first data into brightness components and chrominance components; (B) modulating the brightness components such that a contrast ratio thereof is selectively emphasized to thereby generate modulated brightness components, the modulating including: arranging the brightness components into gray levels for each frame to generate a histogram, extracting a control value from the histogram, dividing the histogram into a plurality of fixed regions including a control region to which the control value belongs, re-setting the ranges of the regions of the histogram corresponding to the control region wherein the re-set ranges of the regions are different from the ranges of the fixed regions, and generating the modulated brightness components using a curve having slopes that are different in the re-set histogram regions; and (C) generating second data having a selectively emphasized contrast ratio using the modulated brightness components and the chrominance components; wherein the control value is selected to be a gray level value existing most frequently in the histogram, wherein the modulated brightness components are generated by using a curve having a largest slope in the control region.