SOURCE DRIVER AND LIQUID CRYSTAL DISPLAY

摘要

PROBLEM TO BE SOLVED: To provide a source driver of low power consumption in a liquid crystal display. SOLUTION: At least one intermediate voltage level is provided in a level shifter and an output buffer, and different voltage levels are provided to image data of different polarities in addition to a power supply voltage level VDD and a grounding level GND. Thus, the dynamic power consumption of the level shifter and a DAC is reduced markedly by reducing the amplitude of the operation voltage of the level shifter and an analog circuit having the different polarities. In addition, costs for a circuit are reduced by reducing the voltage amplitude of the circuit and using a low breakdown voltage apparatus. COPYRIGHT: (C)2005,JPO&NCIPI