Sejin T.S Co.,Ltd produces and sells specialty functional base film products in Korea. Its offerings include printing optical films for LCD backlights; film parts for displays, AV and OA tools, electronic parts, and vehicles; and polycarbonate, acryl, co-extrusion, and patterned films. The company is also engaged in printing and pressing optical films for displays and in secondary functional film conversion. Formerly known as SEJIN Co., it changed its name to Sejin T.S Co.,Ltd in June 1996, was founded in 1990, and is headquartered in Anseong, South Korea.