In Korea , there seems to be various factors contributing to the receDt expansion of LED lighting , such as re1 飢 ionship orLEDs with the economy and diversificatjon oflighting design . In the background ofthe significant change , their industrial strategy and political measure , that is to grow Korean economy by activatjng LED business , can be seen . We have examined this from various points ofview including that ofpolicy , ecenorny , industry trend , and so on .