Patent ID: 7432902

Claim:
A liquid crystal display (LCD) device, comprising: an LCD panel; a frequency multiplier to multiply a frame frequency to generate a multiplied frame frequency, the multiplied frame frequency including an odd frame and an even frame; a data converter to modulate N-bit input data (N being an integer) supplied in accordance with the odd and even frames from the frequency multiplier into (N−1)-bit data; and a data driver to convert the (N−1) bit data from the data converter into analog data and apply the analog data to the LCD panel, wherein, when a frame discriminating signal corresponds to the odd frame, the data converter modulates the N-bit input data into a data value corresponding to a white signal and outputs the data value if the N-bit input data has a value equal to or greater than a half of 2 N, and outputs the N-bit input data excluding a most significant bit thereof if the N-bit input data has a value less than a half of 2 N, wherein, when the flame discriminating signal corresponds to the even flame, the data converter outputs the N-bit input data excluding a most significant bit thereof if the N-bit input data has a value equal to or greater than a half of 2 N, and modulates the N-bit input data into a data value corresponding to a black signal and output the data value if the N-bit input data has a value less than a half of 2 N .