Conducting Polymer Substrates for Plastic Liquid Crystal Display.

Abstract

In a conventional liquid crystal display device (LCD), glass substrates coated with an indium tin oxide (ITO) layer are typically used for the application of an electric field to the liquid crystal material. For many applications, there is a need for a LCD with a plastic substrate. Polypyrrole is a well known conducting polymer for its high conductivity and chemical stability. Compared with the currently used ITO conducting layer, polypyrrole is more compatible mechanically with plastic. Because it is an organic material, it should be able to bend and flex with the substrate. Therefore, it is a good candidate for the conducting surface needed in a plastic LCD. Here we present the preparation of polypyrrole films on a polyethylene terephthalate (PET) substrate by an in-situ solution deposition process and their patterning by conventional photolithography techniques. We will discuss their important physical properties, such as surface resistance and optical transmission, and their suitability as a substitute for ITO as an electrode for a plastic reflective Ch-LCD.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1997
Accession Number
ADA361383

Entities

People

  • Catherine O'ferrall
  • Ling Huang
  • Ranganathan Shashidhar
  • Terrance Vargo
  • William Fritz

Organizations

  • Kent State University

Tags

DTIC Thesaurus Topics

  • Adhesion
  • Chemical Reactions
  • Chemistry
  • Conductivity
  • Electrical Conductivity
  • Films
  • Liquid Crystal Displays
  • Liquid Crystals
  • Materials
  • Optical Properties
  • Photolithography
  • Physical Properties
  • Polymeric Films
  • Polymerization
  • Polymers
  • Resistance
  • Surface Properties

Fields of Study

  • Materials science

Readers

  • Human-Computer Interaction (HCI).
  • Nanofabrication and Microfabrication.
  • Polymer Science and Engineering.