Abstract: A top-down design methodology is proposed for the design of TFT-LCD one-chip driver ICs,and a 260k color,176RGB×220-dot TFT-LCD one-chip driver IC is successfully developed with silicon verification.This IC is a typical mixed-signal VLSI and is implemented by a 0.18μm HV CMOS process.The static power dissipation is about 5mW for 260k color display mode,and the settling time of the output grayscale voltages within 0.2% error is less than 26μs.

Key words: TFT-LCD, driver IC, top-down design, driving circuit, mixed-signal VLSI