
Samsung SDI, established with target business is for major electric parts at that time such as vacuum tube, Braun tube, and electric discharge indicator tube, among inferior domestic electric industry, challenged to installable parts business complicated and required much investment cost, so that became spearhead that lead domestic electric parts to be a best level.
Vacuum tube which Samsung SDI produced for the first time was completed at first May 16 in 1970 that became the anniversary of founding Samsung SDI. Since, starting from black and white Braun tube, it developed 'Quick Start Braun Tube' for the first time in Korea and third time in the world in 1974 and built strong foundation for high speed growth.