A flat panel display device for dual-panel display that comprises an array of pixels formed in rows and columns, a first sub-array of the array of pixels for image display in a first direction, a second sub-array of the array of pixels for image display in a second direction, at least one scan driver for sequentially scanning the array of pixels row by row, and a plurality of multiplexers, connectable to receive a control signal having a first state and a second state, for connecting the first sub-array of pixels to the at least one scan driver in response to the first state of the control signal, and connecting the second sub-array of pixels to the at least one scan driver in response to the second state of the control signal.