Display state controller, display device, display state control method, program therefor, and recording medium recorded with the program

A display device, comprising:

• a display unit;
• a display controller that acquires an input image signal and causes the display unit to display an image corresponding to the input image signal;
• and
• a display state controller that controls a display state of an image displayed on the display unit, the display state controller controlling a display state of an image corresponding to an input image signal, the image being displayed on a display unit that has a plurality of pixels, the display state controller comprising:
• a shift controller that shifts predetermined regions to the other ends by performing:
• processing of enlarging the predetermined regions with one ends thereof as references so that an enlarged amount in one step is smaller than 1 pixel, in such a manner that the other ends opposing to the one ends are made apart from the one ends;
• and processing of reducing the predetermined regions with the other ends as references so that a reduced amount in one step is smaller than 1 pixel, in such a manner that the one ends are made closer to the other ends.

A display state control method of controlling, by a calculation unit, a display state of an image displayed on a display unit corresponding to an input image signal, wherein

• the display unit includes a plurality of pixels, and
• the calculation unit shifts predetermined regions to the other ends by performing:
• processing of enlarging the predetermined regions with one ends thereof as references so that an enlarged amount in one step is smaller than 1 pixel, in such a manner that the other ends opposing to the one ends are made apart from the one ends;
• and processing of reducing the predetermined regions with the other ends as references so that a reduced amount in one step is smaller than 1 pixel, in such a manner that the one ends are made closer to the other ends.

A display state control program for causing a calculation unit to execute a display state control method of controlling, by a calculation unit, a display state of an image displayed on a display unit corresponding to an input image signal, wherein

• the display unit includes a plurality of pixels, and
• the calculation unit shifts predetermined regions to the other ends by performing:
• processing of enlarging the predetermined regions with one ends thereof as references so that an enlarged amount in one step is smaller than 1 pixel, in such a manner that the other ends opposing to the one ends are made apart from the one ends;
• and processing of reducing the predetermined regions with the other ends as references so that a reduced amount in one step is smaller than 1 pixel, in such a manner that the one ends are made closer to the other ends.

A recording medium recorded with a display state control program in a manner readable by a calculation unit, the display state control program causing a calculation unit to execute a display state control method of controlling, by a calculation unit, a display state of an image displayed on a display unit corresponding to an input image signal, wherein

• the display unit includes a plurality of pixels, and
• the calculation unit shifts predetermined regions to the other ends by performing:
• processing of enlarging the predetermined regions with one ends thereof as references so that an enlarged amount in one step is smaller than 1 pixel, in such a manner that the other ends opposing to the one ends are made apart from the one ends;
• and processing of reducing the predetermined regions with the other ends as references so that a reduced amount in one step is smaller than 1 pixel, in such a manner that the one ends are made closer to the other ends.