The example mobile device 100 further includes a display 101. In certain embodiments, the display 101 serves as both a display and a touch panel for accepting user input. An example embodiment may be implemented in which the display 101 may be realized as a liquid crystal display (LCD) device, operable for rendering visible information over a surface of a viewing screen of the LCD. The visible information may include a graphical user interface (GUI) 133. The GUI 133 may be operable for the rendering of the visual information interactively, and for receiving haptically entered user inputs entered therewith. The surface of the viewing screen of the LCD 101 is covered, transparently, with the optically transparent window 102.
The example mobile device 100 incorporates an array of passive optics such as 105 of