Patent ID: 7864134

Claim:
A display system, comprising: a processor that includes a display controller which outputs application data, state display data and a picture control signal; a display driver that receives the application data from the display controller; a sub memory that stores the state display data and the picture control signal provided by the display controller and outputs the state display data and the picture control signal to the display driver when the processor is in both a normal operation mode and a standby mode; and a display panel that includes a main panel which displays the application data under control of the display driver and a sub panel which displays the state display data under control of the display driver, wherein the display driver drives the application data provided by the display controller and the state display data provided by the sub memory when the processor is in the normal operation mode, and the display driver drives the state display data provided by the sub memory bypassing the processor in the standby mode, wherein the application data provided by the processor and the state display data provided by the sub memory are added up and input into the display driver in the normal operation mode.