Patent ID: 7245284
Filing Date: 2007-07-17
Classification: G09G

Abstract:
1. A liquid crystal display panel driving apparatus comprising: a reference voltage generating unit provided with a serial unit including a plurality of resistors connected in series, a first switch for supplying a first potential in a first mode and a second potential lower than the first potential in a second mode to a terminal of said serial unit and a second switch for supplying the second potential in the first mode and the first potential in the second mode to the other terminal of said serial unit, for outputting the respective voltages from connection points between said plurality of resistors; and a driving unit for receiving image data and said plurality of voltages output by said reference voltage generating unit and for selectively outputting one of said plurality of voltages and a plurality of voltages generated therefrom by voltage division by using resistors according to a value of said image data, for applying the voltage to a terminal of a pixel of a liquid crystal display panel.