KOYJ was established in February, 2006 with the company motto of specializing in the differentiated display functional components and materials, and mass production of protective film was initiated in 2007 through the development of innovative coating mix technology.
Also, KOYJ expanded the business to the optical film field by applying the independent technology on high-precision ultra-thin coating to continue the outstanding growth annually.
In addition, KOYJ advanced to the light guide panel processing field in 2009 for stable business portfolio, and developed the double-sided compression thermal patterning technology for the first time in the world in 2010 to secure the unique competitiveness even in the light guide panel patterning field.
Through this, KOYJ is continuing the competition not only domestically, but also in the global market.