Patent ID: 8379308

Claim:
A rolled web of optical film comprising an optical film layer having an optical orientation axis, and an adhesive film web including a release material layer and an adhesive material layer, the optical film layer being laid on the adhesive film web via the adhesive material layer and rolled up into a roll, wherein: the optical film layer is made up of plural optical film pieces that are arranged into a substantially elongated shape with end portions of the optical film pieces being adjacent to each other; the optical film pieces are formed by cutting an optical film web having an optical orientation axis, at least along cutting lines that cross the longitudinal direction of the optical film web; the optical film pieces are disposed on the adhesive film web to have the cutting lines oriented parallel to the longitudinal direction of the adhesive film web; and optical orientation axes of the optical film pieces each are oriented at a common angle relative to the longitudinal direction of the adhesive film web.