Patent ID: 7196685
Filing Date: 2007-03-27
Classification: G09G

Abstract:
1. A data driving apparatus for a liquid crystal display, comprising: at least one digital to analog converter circuit for converting input pixel data into a plurality of pixel signals, time-dividing the converted pixel signals, and demultiplexing the time-divided pixel signals to output the demultiplexed time-divided pixel signals, wherein the number of the converted pixel signals is greater than that of the time-divided pixel signals; at least two output buffer circuits for selectively receiving the demultiplexed time divided pixel signals from the digital to analog converter circuit, the selected output buffer circuit sequentially receiving and holding the demultiplexed time-divided pixel signals, and then buffering and outputting the held pixel signals to a plurality of data lines, at least two of the plurality of output buffer circuits being commonly connected to one digital to analog converter circuit; and a timing controller for controlling the digital to analog converter circuit and the output buffer circuits, time-dividing the input pixel data into at least two regions, and sequentially supplying the time-divided pixel data to the digital to analog converter circuit.