DRIVE CIRCUIT, AND DISPLAY DEVICE

摘要

Disclosed is a drive circuit (10), which comprises output terminals (OUT1 to OUT18) of an m-number, image signal output units of an (m+1)-number containing output circuits (11_1 to 11_19) of an (m+1)-number individually, a decision unit for deciding the qualities of the individual image signal output units, and switches (SWB1 to SWB18) for switching the connections between the output terminals (OUT1 to OUT 18) and the image signal output units in accordance with the decision results of the decision unit. If it is decided by the decision unit that the i-th (i indicates a natural number m or less) image signal output unit has failed, the switches (SWB1 to SWB18) connect the j-th (j indicates a natural number (i-1) or less) image signal output unit with the j-th output terminal, and the (k+1)-th (k indicates a natural number i to m) image signal output unit with the k-th output terminal. As a result, the drive circuit can repair itself, if it detects defective one of the image signal output units, so that it can simplify more the wiring lines connected with the image signal output units.