Compression Test on Ribs of PDP Rear Panel by Micro Compression Testing Machine

Introduction

The demand for PDPs (plasma display panels) for use in large flat-panel TVs is rapidly increasing because they are thin, very bright and can be made in large sizes. The PDP structure is made by overlaying two glass substrates, one for the front and one for the rear, bonding these, and injecting a gas mixture after evacuating any air in the gap between the two substrates, and numerous partition walls several tens of μm wide called "ribs" are formed on the substrates. To ensure the mechanical reliability of large PDPs, management of the strength of these ribs is regarded as necessary, so a means of evaluating the strength of these ribs is now required. The following introduces an example of a compression test performed on a typical rib specimen on the PDP rear panel using the "Shimadzu MCT-W500 Micro Compression Testing Machine" to measure the relationship between breaking strength and force/ displacement.

October 22, 2010 GMT