The China International Optoelectronic Exposition (CIOE) is a worldwide renowned exhibition, which presents the most advanced optoelectronic technologies and innovations.CIOE was established in 1999 in Shenzhen.This event has been held annually for the past 13 years at the Shenzhen Convention and Exhibition Center, China.As the world's largest Optoelectronic expo, it has been an UFI-approved event since 2007.