SYSTEM AND METHOD FOR INSPECTION OF SHEET-SHAPED PRODUCT AND POLARIZING PLATE FOR USE IN SUCH INSPECTION

摘要

Disclosed are a system for inspecting a sheet-shaped product, a method for inspecting a sheet-shaped product, and a polarizing plate used thereby. According to one embodiment of the present invention, the system for inspecting a sheet-shaped product comprising the polarizing plate where a release film and a protective film are attached to both surfaces, comprises: the polarizing film for inspection having an absorption shaft perpendicular to the absorption shaft of the polarizing plate; a light source irradiating light from one side of a polarizing unit having a sheet-shaped product and the polarizing plate for inspection to the polarizing unit; and a capturing device capturing the polarizing unit on the other side of the polarizing unit. Moreover, an angle between the extension direction of the release film and the absorption shaft of the polarizing plate is not more than 7 degrees.