Microcavity plasma devices for display applications: Independently addressable arrays with improved luminous efficacy

Sung Jin Park, Seung Hoon Sung, Kuo Feng Chen, Clark J. Wagner, James Gary Eden

Research output: Contribution to journalArticle

Abstract

Independently addressable arrays of microcavity plasma devices have been fabricated and tested. This presentation reports data demonstrating that these devices provide a basis for alternative PDP cell structures of improved luminosity. The radiant output of Si arrays yields values for the luminous efficacy exceeding 7 lumens/W at 800 Torr of a Ne/50% Xe mixture. Measurements of the unoptimized radiant output of 500 × 500 (250,000) arrays of Si microplasma devices, operating in Ne/(5-50)% Xe mixtures and photoexciting (in transmission mode) a 20 μm thick film of green phosphor, yield values of the luminous efficacy up to 7.2 ± 0.6 lumens/W for a Ne/50% Xe mixture (total pressure of 800 Torr) excited by a 20 kHz sinusoidal voltage waveform. Sustaining voltages ranging from -250 to 340 V (RMS) yield luminance values up to ∼2000 cd-m-2 for Ne/50% Xe mixtures without incorporation of MgO. Recent laser spectroscopic measurements of Xe2 (a3u+) absorption in the visible and near-infrared suggest steps to be taken in PDP cell design, particularly as the Xe content in Ne/Xe mixtures is increased.

Original languageEnglish (US)
Pages (from-to)1097-1100
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume37
Issue number3
StatePublished - 2006

ASJC Scopus subject areas

  • Engineering(all)

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