In the GFF field, many vendors, especially the ones in Mainland China, conducted expansion aggressively in 2012, but had to trigger a price war to seize customers in 2013. As a result, some vendors witnessed a significant decline in revenue, even the winners also paid a heavy price. The high-profit era of touch screens was gone for ever. The Mainland Chinese vendor SHENZHEN O-FILM TECH won the crown of laurels in the GFF field, but its gross margin fell by about 4%. The revenue of South Korean company MELFAS violently surged by 322% year on year, while its operating margin plummeted from 8.6% to 0.04% in 2013. MELFAS has expressly claimed its exit from some low-margin areas in 2014, which means that its revenue is expected to drop sharply.