Methods for bonding double-sided discs

摘要

Two-program-information-sides DVDs are fabricated using light-curable bonding materials. First and second plastic discs are provided, each containing program information and a light-reflecting coating with a thickness which allows light-curable bonding material curing through the light-reflecting coating while maintaining sufficient light-reflecting coating reflectivity for playability. A two-program-information-sides DVD is fabricated by bonding the first and second discs back to back using a light-curable bonding material which is cured by shinning light through one or both discs. One-program-information-side DVDs with frontside program information discs and backside visible image information discs which require light-reflecting coatings may be similarly fabricated using light-curable bonding materials in accordance with the invention.