Patent ID: 8054321

Claim:
A display device, comprising: a data modulator for: comparing a gray level of input data with a designated reference gray level to obtain a comparison result; modulating the input data in accordance with the comparison result to obtain a modulated data; and inserting one of black data and white data after the modulated data; and a driver for supplying the modulated data from the data modulator and the one of black data and white data to a display panel, wherein the data modulator: modulates the input data to a higher level and inserts the black data after the modulated data if the gray level of the input data is less than the designated reference gray level, and modulates the input data to a lower level and inserts the white data after the modulated data if the gray level of the input data is greater than or equal to the designated reference gray level, wherein the data modulator includes a lookup table which selects one of pre-set modulation data in accordance with a gray level analysis result of the input data, and wherein the modulated data, which is made by modulating the input data and the one of black and white data are both displayed during a single frame period.