Patent ID: 8217923
Filing Date: 2012-07-10
Classification: G09G

Abstract:
1. A data driver of a display device, the data driver comprising: a DAC (Digital Analog Converter) comprising an output to output a drive signal for driving a signal line of a displaying unit; an amplifier configured to amplify the drive signal outputted by the DAC, the amplifier comprising an output to output the drive signal that has been amplified by the amplifier to the signal line; a repair amplifier comprising an input and an output, wherein the signal line is separated into a connected data line connected to the amplifier and a disconnected data line not connected to the amplifier by a breakage point when a breakage occurs on the signal line, and the input of the repair amplifier is connected to the connected data line and the output of the repair amplifier is connected to the disconnected data line; and a switch configured to supply the drive signal to the input of the repair amplifier when a test mode for testing the repair amplifier is performed