Established in 1992, QSTECH made the 1st outdoor LED display screen in China. In 2008, we have lighted up the display in National Stadium for Olympic Games in Beijing, as well as the metropolis construction - subway, meteorological forecasting display system, volleyball gym and traffic management system. Now our screens for conference, corporate, shopping malls, casinos, stages, billboards are serving more than 100 countries all over the world.