A display includes first pixels, second pixels, a first de-multiplexer and a second de-multiplexer. The first de-multiplexer transmits a first data signal to the first pixels sequentially in response to first control signals. The second de-multiplexer transmits a second data signal to the second pixels sequentially in response to second control signals. The polarity of the first data signal is different from that of the second data signal. Levels of the first control signals are switched between a first voltage level and a zero voltage level, corresponding to the polarity of the first data signal. Levels of the second control signals are switched between a second voltage level and the zero voltage level, corresponding to the polarity of the second data signal. The first voltage level is different from the second voltage level. A method of transmitting signals in a display is also disclosed herein.