Patent ID: 8400476

Claim:
A display device comprising: an acquisition unit configured to acquire coordinates on a display screen designated by a coordinate input apparatus; a registering unit configured to register an enlargement target which is to be enlarged; an enlargement processing unit configured to enlarge and display a partial area, which includes the enlargement target, if a positional relationship between coordinates acquired by said acquisition unit and a position at which the enlargement target, which has been registered by said registering unit, is displayed on the display screen satisfies a predetermined condition; and a cancellation processing unit configured to cancel the enlarged display of the partial area by said enlargement processing unit based upon an input from the coordinate input apparatus, wherein said enlargement processing unit enlarges the partial area that includes the enlargement target if a moving speed of the coordinates acquired by said acquisition unit is within a prescribed range of speeds and distance between the acquired coordinates and the enlargement target is equal to or less than a prescribed distance.