Systems comprising a display having a first pixel array and a gap in the first pixel array in which at least some pixels of the first pixel array are missing, a device such as a camera, a light emitting device or a light receiving device, and a second pixel array. The systems are operable in a first operation mode in which the camera or light emitting device are operative while the second pixel array is not operative to display information, and in a second operation mode in which the camera or light emitting device are not operative while the second pixel array is operative to display the second array pixel information in the gap in the first pixel array. Systems are also operable in a third operation mode.