19.2: Formation of Barrier Ribs for PDP by Injection Molding Method

Abstract

In this study, a new processing route of barrier ribs for the plasma display panels was attempted. A paste containing ceramic powders for the barrier ribs, binder, hardener, and other additives, was injection molded into a polymeric mold and cured prior to mold removal. Effects of several processing parameters such as mold preparation conditions, compositions of the paste, and molding conditions on the morphology of the barrier ribs formed were investigated. The results indicated that the injection molding route is capable of producing barrier ribs of fine pitch and complicated morphologies.

Pore‐free mold‐pattern‐transfer method for barrier ribs of HD PDPs

“…The mold-pattern-transfer process, however, has been known to generate air-trapped pores in barrier ribs. 9 The trapping of air has been one of the main huddles for the mold-transfer method to be used in actual applications. In this study, therefore, an attempt was made to analyze the phenomenon of air-trapped pore formation in the course of the trench-filling process of the paste and to develop an alternate route for the mold-pattern-transfer method.…”