LB Lusem Co., Ltd. manufactures and sells driver integrated circuits (ICs) and active optical cable connectors for flat panel displays. It manufactures ICs based on bump, chip on film, and back grinding back metal technologies, as well as provides wafer test services. The company was formerly known as Lusem Co., Ltd. and changed its name to LB Lusem Co., Ltd. in February 2018. The company was founded in 2004 and is based in Gumi-si, South Korea.