DoD's armed services each have many uses for maps and charts. Paper products have long been sued for planning, navigation, and tactical situation assessment. As useful as paper products are, today's sailor, soldier, and airman are looking for digital maps and charts. Digital products bring a new dimension to tactical information systems. Today's workstation display systems do not offer the large format and high information content of traditional paper products. This paper describes a 30 inch diagonal, 80 color pixels/inch, display with an addressable resolution of 2048 by 1280 by 24, which could meet the needs of many DoD programs/users.
Erik Chaum, Erik Chaum,
"Joint service electronic map/chart (JEMC) display", Proc. SPIE 3057, Cockpit Displays IV: Flat Panel Displays for Defense Applications, (1 July 1997); doi: 10.1117/12.277001; https://doi.org/10.1117/12.277001