Multifunctional driving circuit of TFT-LCD (TFT-LCD)

摘要

The present invention relates to driving a TFT-LCD (Thin Film Transistor-Liquid Crystal Display), and more particularly, to a method and apparatus for driving a low power consumption with a reference voltage as many as the number of data bits, To a multi-grayscale driving circuit of a TFT-LCD.;In order to achieve the above-mentioned object of the present invention, there is provided a semiconductor memory device, comprising: a signal terminal for each bit of an externally transmitted data signal; a reference voltage terminal having different reference voltages corresponding to the number of bits; An adder unit for generating a pixel voltage by adding the switched reference voltages to each other; and a controller for storing a voltage outputted from the switching and adder voltage unit, And a hold memory unit for outputting the read data.