Patent ID: 7990357

Claim:
A method of driving a liquid crystal display, including a picture display part having a plurality of gate lines and a plurality of data lines and provided with liquid crystal cells having a shared data line, comprising: alternately generating a first source output enable signal having a first horizontal period and a second source output enable signal delayed from the first source output enable signal by a time (D 1 ) longer than a half of the first horizontal period and shorter than the first horizontal period; generating a new source output enable signal by selecting the first and second source enable signals alternately using a selecting signal; sequentially supplying a scanning pulse to the gate lines; supplying data voltages to the data lines in response to the new source output enable signal; and inverting the polarity of data voltages for each horizontal period, wherein the selecting signal is generated by receiving a second data enable signal and inverting the second data enable signal at the rising edge of the second data enable signal, wherein the second data enable signal has twice the frequency of a first data enable signal supplied from an external system, wherein the liquid crystal cells include first liquid crystal cells arranged in an odd column on the left side of the shared data line to continuously charge data voltages having alternating polarities and second liquid crystal cells at the even column arranged at the right side of the shared data line to continuously charge data voltages having the same polarity, wherein the first source output enable signal is generated for selecting a output time of a pre-charged voltage to be supplied to the first liquid crystal cells at the odd column and a data voltage to be supplied to the second liquid crystal cells at the even column, wherein the second source output enable signal is generated for selecting a output time of a pre-charged voltage to be supplied to the second liquid crystal cells at the even column and a data voltage to be supplied to the first liquid crystal cells at the odd column, wherein the new source output enable signal selectively outputs the first source output enable signal when the select signal is a high period, and selectively outputs the second source output enable signal when the select signal is a low period before rising edge time.