Photo-curable adhesive composition, polarizing adhesive and manufacturing method thereof, optical member and liquid crystal display device (1)

The invention provides a photocurable adhesive composition, a polarizer and a manufacturing method thereof, an optical member, and a liquid crystal display device. The photocurable adhesive can demonstrate the adhesive capability immediately after light irradiation even though a resin thin film with low moisture permeability is configured to be a protective film, after a certain period of time, the adhesive capability is good compared with other capabilities, and has no other problems after the endurance experiment. The adhesive capability is good after being subjected to the damp and hot resistance test and the adhesiveness is low. The photocurable adhesive, at a specific proportion, includes (A) polyhydric alcohol poly(methyl)acrylate having 2-15 carbon atoms, (B) polyhydric alcohol polyglycidyl ether having 2-10 carbon atoms, (C) an oxetane composition in a specified structure, (D) a (methyl) acrylic polymer, and (E) a cationic photoinitiator.