Data control device for LCD screen, comprises output buffer and digital analogue converter parts controlled via time control unit

摘要

A digital/analogue (D/A) converter part (30) is used to convert inputted image point data into image point signals and carry out a time distribution for these signals in order to generate time-distributed image point signals, the number of converted image point signals being greater than the number of time-distributed image point signals. At least two output buffer parts (50, 54) are used to sequentially receive the image point signals from the D/A converter part, hold the time-distributed image point signals and then buffer and send these signals to a number of data lines. At least two of the output buffer parts are connected together to the D/A converter part. A time control unit is used to control the D/A converter and output buffer parts and carry out a time distribution in at least two regions of the image point data supplied to the D/A converter part, in order to supply the time-distributed image point data to the data lines in a sequential manner.