04196430 is referenced by 20 patents and cites 5 patents.
A roll-up method for a display unit according to this invention consists of supplying data for designating a roll-up region to a roll-up address counter to designate an address for a refresh memory storing a character display data portion and a control data portion and modifying the contents of said address counter to modify the stored information of said refresh memory in a fly-back time of the display unit by means of a roll-up instruction, thereby rolling up said region.