A method includes dividing a display area of the display panel into a plurality of display subareas, a respective display subarea configured to independently display an image; and adding a border to at least one display subarea in the display area. Adding the border to the at least one display subarea in the display area includes retrieving information about at least one display subarea based on coordinates on the display panel; formatting display subarea information; determining coordinates of borders of the at least one display subarea; tagging the coordinates of borders of the at least one display subarea with a tag indicating whether or not the borders of the at least one display subarea is to be displayed; assigning a value to a tag indicating whether or not the border of the at least one display subarea is to be displayed; and displaying an image in the display area.
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What is claimed is: