• Title/Summary/Keyword: Polymer material

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Next-generation active-matrix polymer OLED displays

  • Vaart, N.C. Van Der;Meulenkamp, E.A.;Young, N.D.;Fleuster, M.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.337-342
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    • 2004
  • Since 1992, Philips has been developing polymer OLEDs resulting in a first commercial monochrome display just 10 years later. Philips is now focusing on the technology development required to mass-produce full-color polymer OLDE displays, based on passive and active-matrix addressing. High precision inkjet printing has been chosen as the deposition technology for the OLED material. In this paper, we give an overview of the activities of Philips in the area of mobile OLED applications and explore the route towards large screen OLED television.

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Scaling analysis of electrorheological poly(naphthalene quinone) radical suspensions

  • Min S. Cho;Park, Hyoung J.
    • Korea-Australia Rheology Journal
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    • v.12 no.3_4
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    • pp.151-155
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    • 2000
  • A semiconducting poly(naphthalene quinone) radical (PNQR) was synthesized from Friedel-Craft acylation between naphthalene and phthalic anhydride and used as dispersing particles of a dry-base electrorheological (ER) material in silicone oil. Under an applied electric field (E), the dynamic yield stress (${\tau}_{dyn}$) of this ER fluid, obtained from a steady shear experiment with a controlled shear rate mode, was observed to increase with $E^{1.45}$ Based on this relationship, we propose a universal correlation curve for shear viscosity, which is independent of E using a scaling analysis.

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Organic Passivation Material-Polyvinyl Alcohol (PVA)/Layered Silicate Nanocomposite-for Organic Thin Film Transistor

  • Ahn, Taek;Suk, Hye-Jung;Yi, Mi-Hye
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1539-1542
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    • 2007
  • We have synthesized novel organic passivation materials to protect organic thin film transistors (OTFTs) from $H_2O$ and $O_2$ using polyvinyl alcohol (PVA)/layered silicate (SWN) nano composite system. Up to 3 wt% of layered silicate to PVA, very homogeneous nanocomposite solution was prepared.

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