MANUFACTURING METHOD OF COMPOSITE FILTER AND COMPOSITE FILTER OBTAINED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a composite filter capable of exposing and grounding an electromagnetic wave shield sheet without the need for exfoliating and eliminating step of another optical filter layer from on the electromagnetic wave shield sheet. SOLUTION: The manufacturing method of the composite filter comprising (A) a continuous belt-like electromagnetic wave shield sheet 1 with a width W formed by laminating a mesh region and a grounding region 40 with a thickness of 5μm or below capable of entirely covering an image display region of a display to be applied on one side of a transparent substrate 11, and (B) a continuous belt-like adhesive optical filter 21 with a width X narrower than the width W one side of which an adhesive layer is laminated and at least part of a grounding region can be exposed, includes: directing the adhesive layer side of the continuous belt-like adhesive optical filter 21 to the conductor layer side of the electromagnetic wave shield sheet; continuously supplying the continuous belt-like adhesive optical filter 21 in a way of opposing just above the image display region part of the display in the electromagnetic wave shield sheet; adhering and laminating them; and exposing side end edges of the electromagnetic wave shield sheet as a grounding region. COPYRIGHT: (C)2007,JPO&INPIT