According to the present disclosure, a transmitter for transmitting control characters to a display device over an interface includes a transmitter portion configured to transmit a control character having a plurality of bit values to the display device. The transmitter also includes logic configured to determine values of the bits in the control character and construct a corresponding plurality of rebalancing control characters based on the determination of the values of the plurality of bits in the control character to have bit values selected such that the combination of the control character and rebalancing control character is DC balanced. As such, the transmitter provides DC balance correction to non-DC balanced control characters in such a way as to allow DVI and HDMI to operate properly on an AC-coupled connection.