Patent ID: 8330688

Claim:
A display system comprising: a display panel; and a display control drive device, wherein the display panel comprises: pixels that are arranged in the form of a matrix; external terminals through which three color drive signals to be applied to the pixels are received; first lines which extend in a first direction and over which the three color drive signals received through the external terminals are applied to the pixels; selection switching elements which are interposed between the external terminals and a predetermined number of the first lines and which selectively apply one of the three color signals, which are received through the external terminals, to any of the predetermined number of the first lines, wherein the display control drive device comprises: a display memory which is adapted to store display data of one frame for the display panel, the display data comprising a plurality of data, each of which includes three color data, the display memory being adapted to read out ones of the plurality of data corresponding to one line for the display panel, sequentially in each horizontal period; output terminals coupled to the plurality of external terminals of the display panel, respectively; an output circuit coupled between outputs of the display memory and the output terminals to provide the output terminals, respectively, with three color drive signals based on the three color data corresponding to the ones of the plurality of data read out from the display memory so that three color drive signals are provided to one output terminal in time-sharing manner; a timing controller which provides control signals each indicating an output period of a corresponding one of the three color drive signals, respectively, the control signals being provided to the selection switching elements in the display panel, wherein the timing controller includes: a control signal producing circuit providing the control signals; a time setting register which is adapted to store a value determining a pulse width of the control signals; and a position setting register which is adapted to store a value determining a rising edge of the control signals, and wherein the control signal producing circuit provides selection switching elements with the control signals so that the control signals each selectively apply one of the three color signals to the pixels in time divisional manner.