NXP customers may use emWin for development and production completely royalty-free as long as it is used on an NXP microcontroller. The license is part of the board support package .zip file on LPCware.com . Please refer to the license agreement for details.
emWin for NXP microcontrollers can be found at
http://www.nxp.com/pages/emwin-graphics-library:EMWIN-GRAPHICS-LIBRARY