Display control device and control method therewith

A control method with a display control device, the method comprising:

• storing an image signal input from a signal source;
• determining a number of output frames based on an input vertical synchronizing signal input from the signal source, the output frames including frames to be displayed on a display in one cycle of the input vertical synchronizing signal, and determining a dot number in an output horizontal period such that a gap between an output frame line number of a predetermined output frame and the output frame line number of a different output frame in a period corresponding to one cycle of the input vertical synchronizing signal is smaller than a predetermined threshold, the output horizontal period being one cycle of an output horizontal synchronizing signal, the output frame line number being a number of output horizontal periods corresponding to the output frame;
• and
• reading the stored image signal depending on the determined dot number, and outputting the read image signal on the display.

A display control device, comprising:

• a processor coupled to a memory storing instructions for executing:
• a storage that stores an image signal input from a signal source;
• a controller that determines a number of output frames based on an input vertical synchronizing signal input from the signal source, the output frames including frames to be displayed on a display in one cycle of the input vertical synchronizing signal, and that determines a dot number in an output horizontal period such that a gap between an output frame line number of a predetermined output frame and the output frame line number of a different output frame in a period corresponding to one cycle of the input vertical synchronizing signal is smaller than a predetermined threshold, the output horizontal period being one cycle of an output horizontal synchronizing signal, the output frame line number being a number of output horizontal periods corresponding to the output frame;
• and
• an output section that reads the image signal from said storage depending on the dot number determined by said controller, and that outputs the read image signal on the display.