Medical displays by using plasma-beam-alignment technology

— Novel anode layer plasma within minimum chamber space was developed for non‐contact alignment process. The plasma‐treated polyimide (PI) surface showed no particle contamination and no micro‐scratches. Surface morphology was investigated by using scanning electron microscope (SEM), an atomic force...

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Veröffentlicht in:	Journal of the Society for Information Display 2008-01, Vol.16 (1), p.71-75
Hauptverfasser:	Lee, Chin-Yang, Liu, Chi-Hung, Chen, Chih-Wei, Miki, Saodo, Chen, Huang-Ming Philip, Lin, Shermann, Su, Po-Hua, Lee, Chein-Dhau
Format:	Artikel
Sprache:	eng
Schlagworte:	anode layer plasma Liquid-crystal alignment plasma beam alignment polyimide
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container_title	Journal of the Society for Information Display
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creator	Lee, Chin-Yang Liu, Chi-Hung Chen, Chih-Wei Miki, Saodo Chen, Huang-Ming Philip Lin, Shermann Su, Po-Hua Lee, Chein-Dhau
description	— Novel anode layer plasma within minimum chamber space was developed for non‐contact alignment process. The plasma‐treated polyimide (PI) surface showed no particle contamination and no micro‐scratches. Surface morphology was investigated by using scanning electron microscope (SEM), an atomic force microscope (AFM), and X‐ray photoemission spectroscopy. The different oxygen‐to‐carbon ratio ([O]/[C] ratio) for XPS spectra indicated a composition change after plasma treatment. Surface pretilt angles were varied from 0 to 2.1° under different plasma exposure times. Finally, a prototype 20.8‐in. QXGA IPS‐mode gray‐scale medical liquid‐crystal display was successfully demonstrated with high contrast ratio, excellent uniformity, and wide viewing angle using this new plasma‐beam‐alignment technique.
doi_str_mv	10.1889/1.2835038
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The plasma‐treated polyimide (PI) surface showed no particle contamination and no micro‐scratches. Surface morphology was investigated by using scanning electron microscope (SEM), an atomic force microscope (AFM), and X‐ray photoemission spectroscopy. The different oxygen‐to‐carbon ratio ([O]/[C] ratio) for XPS spectra indicated a composition change after plasma treatment. Surface pretilt angles were varied from 0 to 2.1° under different plasma exposure times. Finally, a prototype 20.8‐in. 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subjects	anode layer plasma Liquid-crystal alignment plasma beam alignment polyimide
title	Medical displays by using plasma-beam-alignment technology
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