Patent Document ID: 9190024
Application ID: 13357711
Patent Status: 1

Claim One:
1. A control device for a display device having memory property and including a plurality of scanning lines, a plurality of data lines traversing the plurality of scanning lines, and a plurality of pixels disposed at positions corresponding to intersections between the plurality of scanning lines and the plurality of data lines, the memory property retaining a displayed image when a power supply to the display device is stopped, the control device comprising: a control section that is tangibly embodied as computer instructions stored on at least one non-transitory storage medium and executable by at least one processor, the control section configured to: display a first character inputted in a predetermined region of the display device; select, in response to the display of the first character and randomly or according to a predetermined rule, at least one character different from the first character from among characters that are stored in a memory of the display device and are in a same class as that of the first character; display, prior to a display of a next character inputted in the predetermined region of the display device, the selected character as a second character, the second character superposed on the first character displayed in the predetermined region; and in response to displaying the second character superposed on the first character, fill at least the predetermined region where the first character and the second character superposed on the first character are displayed with a single gray level.