Flexible substrate

A flexible light emitting substrate comprising:

• a controller;
• a base substrate that is deformable in use and carries a map, chart or other data source printed or otherwise displayed thereon which defines a plurality of grid locations identifiable by x and y grid coordinates;
• at least one illumination or data display source provided on, under, or within the base substrate and operably coupled to the controller wirelessly or by a wired connection, each illumination source or data display source of the at least one illumination source or data display source being associated with a respective x or y grid coordinate or with a specific location within an x and y grid coordinate or with a position of an object or person relative to a boundary representative of the map or chart printed or otherwise displayed on the base substrate;
• a position sensor for determining the current location of a person or object;
• and
• a power source for providing power to the controller and the at least one illumination or data display source,
• wherein the controller is configured for selectively controlling operation of the at least one illumination or data display source based at least partially on the determined current location of the person or object.