Patent ID: 7382345

Claim:
A driving apparatus for a liquid crystal display device having a plurality of data lines, comprising: a data integrated circuit; a timing controller connected to the data integrated circuit; an encoder provided at the timing controller, the encoder determining whether a data for a current line is identical to a data for a previous line and generating a line control signal based on the determination whether the current line data is identical to the previous line data; and a decoder provided at the data integrated circuit, the decoder receiving the line control signal from the encoder, wherein the encoder does not output the current line data during a predetermined period for the current line if the line control signal is in a first state indicating that the current line data is identical to the previous line data; and modifies and outputs a pixel data of the current line in response to a mode control signal according to a bit transition amount between the pixel data of the current line and a pixel data of the previous line if the line control signal is in a second state indicating that the current line data is not identical to the previous line data, and wherein the decoder does not output corresponding data during the predetermined period if the line control signal is in the first state, decodes and outputs the current pixel data from the encoder in response to the mode control signal if the line control signal is in the second state.