Abstract: One inventive aspect relates to a display system for displaying information and a method for displaying. The system comprises a processing unit and a display unit comprising a display panel. On the image data processing path for transferring information to the display panel the number of writable memory components external to the display panel is limited to one. The writable memory component is adapted to store at least a single image frame. The systems and methods allow to reduce the power consumption based on reduction of the number of memory accesses. In another inventive aspect, a method and system is provided wherein updating of pixel information is performed content dependent. In still another inventive aspect, a system is provided wherein the display panel is connected to the processing unit using a separate, dedicated display bus.