Patent ID: 8717343

Claim:
A repair amplification circuit, for repairing a data line in a display device, wherein the data line comprises a necessary repair segment and a unnecessary repair segment which are not electrically connected, and the repair amplification circuit comprises: a controlling unit, wherein under a detection mode, the controlling unit generates a detecting signal according to a testing signal transmitted by the unnecessary repair segment in a test picture, and under an operation mode, the controlling unit generates a switching signal according to a repair controlling signal related to the detecting signal, the controlling unit further comprises: a repair controller, generating a detection enabling signal under the detection mode, and generating the switching signal according to the repair controlling signal under the operation mode; and a repair detector, detecting the testing signal according to the detection enabling signal, and generating the detecting signal according to a detection result; a first operational amplifier and a second operational amplifier, respectively generating a positive polarity repairing signal and a negative polarity repairing signal; a first switching unit, receiving a driving signal transmitted by the unnecessary repair segment in an image picture, and transmitting the driving signal to one of the first operational amplifier and the second operational amplifier according to the switching signal; and a second switching unit, transmitting the positive polarity repairing signal or the negative polarity repairing signal to the necessary repair segment according to the switching signal.