IDEAS home Printed from https://ideas.repec.org/a/wsi/srlxxx/v16y2009i01ns0218625x0901224x.html
   My bibliography  Save this article

Effect Of Surface Roughness On The Fabrication Of Electrowetting Display Cells And Its Electro-Optic Switching Behavior

Author

Listed:
  • PALANIVELU SURESHKUMAR

    (Polymer Fusion Research Center, Department of Polymer Nano-Science and Technology, Chonbuk National University, Chonju, Chonbuk 561-756, Korea)

  • MIYOUNG KIM

    (Polymer Fusion Research Center, Department of Polymer Nano-Science and Technology, Chonbuk National University, Chonju, Chonbuk 561-756, Korea)

  • EUN GYOUNG SONG

    (Polymer Fusion Research Center, Department of Polymer Nano-Science and Technology, Chonbuk National University, Chonju, Chonbuk 561-756, Korea)

  • YOUNG JIN LIM

    (Polymer Fusion Research Center, Department of Polymer Nano-Science and Technology, Chonbuk National University, Chonju, Chonbuk 561-756, Korea)

  • SEUNG HEE LEE

    (Polymer Fusion Research Center, Department of Polymer Nano-Science and Technology, Chonbuk National University, Chonju, Chonbuk 561-756, Korea)

Abstract

Electrowetting is a new class of reflective display based on electric field controlled movement of oil/water interface across a hydrophobic layer. The focus of this paper is to fabricate electrowetting cells on a rough hydrophobic surface and to study its effect on kinetics of electrowetting. The surface roughening found effective in two ways in the design and operation of the electrowetting device: (i) It enhances the coating of photoresist (PR) on the hydrophobic surface, which is normally difficult due to low surface energy of Teflon and (ii) the roughness changes the contact angle of the liquid (oil), which in turn changes the electro-optic switching behavior of the device. The kinetics of optical switch was checked by calculating theoretically the white area fraction (WA%), which is a measure of optical switching in electrowetting display by changing the roughness of the hydrophobic surface. The present study showed that the optical performance found to increase with the increase of roughness of the hydrophobic surface.

Suggested Citation

  • Palanivelu Sureshkumar & Miyoung Kim & Eun Gyoung Song & Young Jin Lim & Seung Hee Lee, 2009. "Effect Of Surface Roughness On The Fabrication Of Electrowetting Display Cells And Its Electro-Optic Switching Behavior," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 16(01), pages 23-28.
    • Handle: RePEc:wsi:srlxxx:v:16:y:2009:i:01:n:s0218625x0901224x
    DOI: 10.1142/S0218625X0901224X
    as

    Download full text from publisher

    File URL: http://www.worldscientific.com/doi/abs/10.1142/S0218625X0901224X
    Download Restriction: Access to full text is restricted to subscribers
    File URL: https://libkey.io/10.1142/S0218625X0901224X?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:16:y:2009:i:01:n:s0218625x0901224x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.