Patent ID: 7773048

Claim:
A display apparatus driving method, in which (i) N sets of image data respectively for N pixels are inputted at a time respectively via N routes (N is a whole number equal to or more than two), (ii) the N sets of image data are converted, by a display controller, to N sets of output image data respectively for N screens, where a whole screen is divided into the N screens horizontally, and (iii) the N sets of output image data are outputted to a display driving section via N×k routes (k is a whole number equal to or more than one), wherein: the display controller includes N controller circuits connected to each other via a data bus or data buses and respectively including a line memory wherein the N sets of image data are inputted into the N controller circuits respectively via N routes; and each of the N controller circuits (i) transfers a transfer portion of the thus inputted image data via the data bus or data buses to another one of the N controller circuits that is in charge of controlling driving of another of the N screens that the transfer portion is for, (ii) stores a stay portion of the thus inputted image data in its own line memory together with another transfer portion that (a) is for one of the N screens, driving of which that one of the N controller circuits is in charge of controlling and that (b) is transferred to that one of the N controller circuits from another one of the N controller circuits, and (iii) converts, into output image data for that one of the N screens, the stay portion and the another transfer portion thus stored in its own line memory.