Patent ID: 9361842
Filing Date: 2016-06-07
CPC Classification: G09G

Claim Text:
1. A display panel driving apparatus, comprising: a gate driving part configured to output a gate signal to gate lines of a display panel; and a data driving part configured to output a data signal to a data line of the display panel, the data driving part comprising a digital-analog converter, wherein the digital-analog converter is configured to convert a common voltage control data of digital format to a common voltage control voltage of analog format, and wherein the data driving part further comprises a first operational amplifier configured to amplify the common voltage control voltage to output an amplified voltage, the first operational amplifier comprising a non-inverting terminal configured to receive the common voltage control voltage, an inverting terminal electrically connected to a reset resistor configured to set a lower limit and an upper limit of a common voltage, and an output terminal configured to output the amplified voltage.