Apparatus and method data-driving for liquid crystal display device

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

• a data register exchanging pixel data to be supplied to the (4k−3)th (i.e., k is a positive integer) data line among inputted pixel data with pixel data to be supplied to the (4k−2)th data line and realigning the exchanged pixel data;
• a first multiplexer array performing a time-division on the pixel data from the data register, alternately changing a supplying sequence of the time-divided pixel data for each horizontal period and each frame, and supplying the time-divided pixel data;
• a digital-to-analog converter array converting the pixel data into analog pixel signals having a polarity opposite to pixel data of adjacent channels;
• a second multiplexer array alternately changing output channels of the pixel signals in response to a polarity control signal having a polarity inverted for each of at least two horizontal periods;
• and
• a demultiplexer array performing a time-division on data lines, alternately changing a supplying sequence of the pixel signals for at least one horizontal period and one frame, and supplying the pixel signals to the time-divided data lines.

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

• performing a time-division on inputted pixel data in response to a selection control signal, alternately changing a supplying sequence of the time-divided pixel data for at least one horizontal period and one frame, and supplying the time-divided pixel data;
• alternately outputting an unshifted output channel of the pixel data and a shifted output cannel of the pixel data to the right side by one channel in accordance with a polarity control signal having a polarity inverted for at least two horizontal periods;
• converting the pixel data into analog pixel voltage signals;
• alternately outputting an unshifted output channel of the pixel signals and a shifted output channel of the pixel signals to the left side by one channel, and outputting the pixel signals;
• and
• performing a time-division on a plurality of 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 pixel signals for at least one horizontal period and one frame and supplying the pixel signals.

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

• exchanging pixel data to be supplied to the (4k−3)th (i.e., k is a positive integer) data line among inputted pixel data with pixel data to be supplied to the (4k−2)th data line and realigning the exchanged pixel data;
• performing a time-division on the realigned pixel data in response to a selection control signal, alternately changing a supplying sequence of the time-divided pixel data for each horizontal period and each frame, and supplying the time-divided pixel data;
• converting the pixel data into analog pixel voltage signals having polarities opposite to pixel data of adjacent channels;
• alternately outputting an unshifted output channel of the pixel signals and a shifted output channel of the pixel signals to the left side by one channel in accordance with a polarity control signal having a polarity inverted for at least two horizontal periods, and outputting the pixel signals;
• and
• performing a time-division on a plurality of 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 pixel signals for at least one horizontal period and one frame and supplying the pixel signals.

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

• performing a time-division on inputted pixel data in response to a selection control signal, alternately changing a supplying sequence of the time-divided pixel data for at least one horizontal period and one frame, and supplying the time-divided pixel data;
• alternately outputting unshifted pixel data and shifted pixel data in response to a polarity control signal having a polarity inverted for each of at least two horizontal periods;
• and
• performing a time-division on a plurality of 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 pixel data for at least one horizontal period and one frame and supplying the pixel data.