Patent ID: 6727876
Filing Date: 2004-04-27
Classification: G09G,G11C

Abstract:
A thin film transistor (TFT) liquid crystal device (LCD) driver comprising:a gate driver for driving gate lines of a panel formed of a plurality of transistors and capacitors; and a source driver for driving source lines of the panel, the source driver comprising: a shift register portion including first through n-th flip-flops, into which a multiplied signal of an external clock signal is input as a clock signal, wherein input and output terminals of the flip-flops are connected in series and driving pulse signals are provided as an input signal of the first flip-flop in response to the clock signal; a latch clock signal generating portion including first through n-th logic multiplying means for generating first through n-th latch clock signals by logically multiplying first through n-th middle driving pulse signals generated in the corresponding first through n-th flip-flops by inverted signals of first through n-th output signals; and a data latching portion for receiving data signals, the data latching portion comprising first through n-th latches for latching and outputting the data signals in response to the corresponding first through n-th latch clock signals.