Apparatus and method data-driving for liquid crystal display device

A data-driving apparatus for a liquid crystal display device, comprising:

• a data register alternately outputting inputted pixel data with an unshifted output channel and outputting the inputted pixel data with a shifted output channel by two channels for each horizontal period;
• a first multiplexer array performing a time-division on the pixel data from the data register into odd-numbered and even-numbered pixel data, alternately changing a supplying sequence of the time-divided pixel data for each horizontal period and each frame, and applying the time-divided pixel data;
• a digital-to-analog converter array converting the time-divided pixel data into analog pixel signals having a polarity opposite to the pixel data of adjacent channels;
• a second multiplexer array alternately outputting the pixel signals with an unshifted output channel and outputting shifted pixel signals to the left side by one channel in response to a polarity control signal having a polarity inverted for each horizontal period;
• and
• a demultiplexer array performing a time-division on data lines into odd-numbered and even-numbered data lines, supplying the pixel signals to the odd-numbered and even-numbered data lines, and alternately changing a supplying sequence of the pixel signals for at least one horizontal period and one frame.

A data-driving method for a liquid crystal display device, comprising:

• performing a time-division on inputted pixel data into odd-numbered and even-numbered pixel data in response to a selection control signal;
• alternately outputting the time-divided pixel data with an unshifted output channel and the time-divided pixel data with a shifted output channel to the right side by one channel in response to a polarity control signal having a polarity inverted for each horizontal period;
• converting the time-divided pixel data into analog pixel signals having a polarity opposite to the pixel data of adjacent channels;
• alternately outputting the pixel signals with an unshifted output channel and outputting the pixel signals with a shifted output channel to the left side by one channel in response to the polarity control signal for each horizontal period;
• performing a time-division on data lines into odd-numbered and even-numbered data lines in response to the selection control signal and supplying the pixel signals to the time-divided data lines;
• and
• alternately changing a supplying sequence of the time-divided pixel data and a supplying sequence of the pixel signals to the time-divided data lines for at least one horizontal period and one frame.

A data-driving method for a liquid crystal display device, comprising:

• alternately outputting inputted pixel data with an unshifted output channel and outputting the inputted pixel data with a shifted output channel by two channels in response to a polarity control signal having a polarity inverted for each horizontal period;
• performing a time-division on the pixel data into odd-numbered and even-numbered pixel data in response to a selection control signal, and supplying the time-divided pixel data;
• converting the time-divided pixel data into analog pixel signals having a polarity opposite to the pixel data of adjacent channels;
• alternately outputting the pixel signals with an unshifted output channel and the pixel signals with a shifted output channel to the left side by one channel in response to the polarity control signal for each horizontal period;
• performing a time-division on data lines into odd-numbered and even-numbered data lines in response to the selection control signal and supplying the pixel signals to the time-divided data lines;
• and
• alternately changing a supplying sequence of the time-divided pixel data and a supplying sequence of the pixel signals to the time-divided data lines for at least one horizontal period and one frame.

A data-driving method for a liquid crystal display device, comprising:

• performing a time-division on inputted pixel data into odd-numbered and even-numbered pixel data in response to a selection control signal;
• alternately outputting the time-divided pixel data with an unshifted output channel and the time-divided pixel data with a shifted output channel in response to a polarity control signal having a polarity inverted for each horizontal period;
• performing a time-division on data lines into odd-numbered and even-numbered data lines in response to the selection control signal and supplying the pixel data to the time-divided data lines;
• and
• alternately changing a supplying sequence of the time-divided pixel data and a supplying sequence of the pixel data to the time-divided data lines for at least one horizontal period and one frame.