Data driving circuit having simulation buffer amplifier of LCD panel, LCD panel and LCD device

摘要

A data driving circuit of a liquid crystal display (LCD) panel includes a data driving chip and at least two isolation driving units. The data driving chip includes a plurality of data driving units that drive data lines of the LCD panel, and the data driving unit includes a port that limits a range of a working voltage of the data driving unit. The isolation driving unit outputs a preset reference voltage to the port of the data driving unit.