SUBSTRATE FOR PLASMA DISPLAY PANEL

摘要

PROBLEM TO BE SOLVED: To provide a substrate for a plasma display panel by accurately determining an actual warp and by setting the warp within a predetermined range for a good product. SOLUTION: This substrate G for a plasma display panel has the warp in the direction for projecting the film surface side, and is so structured that the warp amount thereof is 0.15% or less when it is measured based on a straightedge brought into contact over two opposite sides of the substrate G in the erected form. The actual warp is accurately determined, and the warp is set in the predetermined range for a good product, so that no space is produced when it is formed into a panel and rib breakage never occurs in transportation.