Atmospheric plasma generation for LCD panel cleaning

Gyu Sik Kim, Chung Yuen Won, Ju Yeop Choi, C. H. Yim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

UV lamp systems have been used for cleaning of display panels of TFT LCD or Plasma Display Panel (PDP). However, the needs for high efficient cleaning and low cost made high voltage plasma cleaning techniques to be developed and to be improved. Dielectric-barrier discharges (DBDs), also referred to as barrier discharges or silent discharges have for a long time been exclusively related to ozone generation. In this paper, a 6kW high voltage plasma power supply system was developed for LCD cleaning. The -phase input voltage is rectified and then inverter system is used to make a high frequency pulse train, which is rectified after passing through a high-power transformer. Finally, bi-directional high voltage pulse switching circuits are used to generate the high voltage plasma. Some experimental results showed the usefulness of atmospheric plasma for LCD panel cleaning.

Original languageEnglish
Title of host publicationICMIT 2007
Subtitle of host publicationMechatronics, MEMS, and Smart Materials
DOIs
StatePublished - 2007
EventICMIT 2007: International Conference on Mechatronics and Information Technology 2007 - Mechatronics, MEMS, and Smart Materials - Gifu, Japan
Duration: 5 Dec 20076 Dec 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6794
ISSN (Print)0277-786X

Conference

ConferenceICMIT 2007: International Conference on Mechatronics and Information Technology 2007 - Mechatronics, MEMS, and Smart Materials
Country/TerritoryJapan
CityGifu
Period5/12/076/12/07

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