Touch sensitive display device

摘要

A touch sensitive display device is described. The device has a touch screen and an overlay. The touch screen has a plurality of data entry locations. The overlay has a guide portion and a support portion. The guide portion has one or more apertures and one or more tactile markers, where each of the tactile markers is adjacent to one of the one or more apertures and corresponds to one of the plurality of distinct data entry locations on the touch screen. The support portion if used to retain the guide portion over the touch screen such that each of the one or more guide apertures is in registration with one of the plurality of distinct data entry locations.