Patent ID: 9523792
Filing Date: 2016-12-20
CPC Classification: G02B

Claim Text:
1. A double-sided polarizer comprising: a polarizing film; a first adhesive layer formed on one surface of the polarizing film; a second adhesive layer formed on the other surface of the polarizing film; a first transparent film formed on the first adhesive layer; a second transparent film formed on the second adhesive layer; and a primer layer at least between the first adhesive layer and the first transparent film or between the second adhesive layer and the second transparent film, wherein the primer layer is formed from a primer composition comprising a urethane polymer, water-dispersible fine particles, and water, wherein the first adhesive layer and the second adhesive layer are formed of an active energy line-curable adhesive, and the first adhesive layer is 0.1 μm to 3 μm thick, wherein the first adhesive layer and the second adhesive layer are formed of a cationic adhesive, wherein the cationic adhesive comprises: (1) 5 wt % to 90 wt % of an epoxy compound having at least two epoxy groups in a molecule; (2) 5 wt % to 90 wt % of an oxetane compound having at least one oxetanyl group in a molecule; and (3) 0.5 wt % to 20 wt % of a cationic photo-polymerization initiator, wherein the double-sided polarizer is manufactured by simultaneously curing the first adhesive layer and the second adhesive layer by irradiating an active energy line once, and wherein at least one of the first transparent film and the second transparent film is an acrylic film.