ADEKA develops the photoinitiator which is one of the important components of light curing resin. Photoinitiator has mainly two categories of photo-radical initiators and photo-cationic initiators. ADEKA provides photo-radical initiators and photo-cationic initiators. In particular, ADEKA commercialized photo-cationic initiators ahead of other companies in Japan.

A photo-cationic initiator generates acid by the photo-irradiation and then it is enable to cure epoxy resins and that kind of things. Light curing resins with the photo-cationic initiator are widely used for the firm hard coatings, adhesion and forming the optical elements.

A photo-radical initiator generates radical by the photo-irradiation and then it is enable to cure acrylic resins and that kinds of things. The characteristic of ADEKA's photo-radical initiator is the high-sensitivity and the wide photo-sensitive range.

ADEKA's photo-radical initiators are utilized for a material of color filter's resists which is used in Liquid crystal displays. The structure of the color filter is, on the glass substrate, a black matrix and a pattern of three primary colors, red, green, and blue. ADEKA's photo-radical initiators for a material of color filter's resists have a great influence on the performance of Liquid crystal displays.

ADEKA has been manufacturing a variety of products for Liquid Crystal Displays.