Flexible mold and production method thereof, as well as back surface plate for pdp and production method thereof

摘要

In a PDP back surface plate comprising substrate and a rib pattern layer formed on the substrate and having a rib region that has ribs having a predetermined shape and a predetermined size, and a non-rib region that occupies at least a part of a peripheral portion of the rib region, a thin film made of the same material as that of the ribs is formed to a predetermined thickness in the non-rib region.