Investigation of micro-scale capillary plasmas for display applications.

摘要

The Capillary Plasma Electrode Discharge is one of several realizations of discharge concepts that generate and sustain high density stable glow discharges at atmospheric pressure. The basis of the CPED approach is a novel concept to suppress the glow-to-arc transition instability by stabilizing the cathode fall region of the discharge. In this work, we investigated the properties and characteristics of micro-scale CPEDs (capillary hole diameter (D), depth (L) and dielectric thickness (T): less than ∼100 mum). We examined the characteristics of DC-type micro-scale CPEDs in an attempt to study the suppression of the glow-to-arc transition. We also examined the basic discharge characteristics of AC-type micro-scale CPEDs as a function of the L/D ratio. Finally, using the basic discharge characteristics of micro-scale CPEDs optimized on the basis of the previous findings, we applied the CPED concept to the design of a commercial plasma display panel and compared the discharge characteristics with those of a conventional DBD-based PDP.