PATCH AND METHOD FOR SANDBLAST PROCESS CONTROL, AND BACK FACE PLATE OF PLASMA DISPLAY PANEL IN WHICH THE PATCH IS FORMED

摘要

PROBLEM TO BE SOLVED: To simply and shortly determine whether a process condition at the time of producing in a sandblast process is suitable. SOLUTION: This patch for sandblast process control which is a patch out of the same material simultaneously with the partition in the sandblast process forming a partition in the back face plate of the plasma display panel, comprises a pattern of the shape of a plurality of kinds of stripes having different widths or intervals. This invention comprises a sandblast process control method using the patch and the back face plate of the plasma display panel in which the patch is formed. COPYRIGHT: (C)2004,JPO&NCIPI