An electronic device includes an electronic display, a touch screen
overlay disposed over a display surface of the electronic display and a
photosensor disposed adjacent to the touch screen overlay and the display
surface. The device further includes a memory and a controller coupled to
the electronic display, the touch screen overlay, the photosensor and the
memory. The controller is programmed to display an alignment object
having a plurality of electronically distinguishable regions on the
display surface of the electronic display and to use the photosensor to
detect a characteristic of one of the regions of the alignment object.
Additionally, the controller is programmed to move the alignment object
based on the detected characteristic along a search path toward an
aligned condition with respect to the photosensor.