A Simple Four-Domain Twisted Nematic Liquid Crystal Display,

Abstract

A particularly simple four-domain(4-D) twisted nematic(TN) liquid crystal display(LCD) device is proposed, which is composed of two left handed TN and two right handed TN subpixels. One of each pair of same handedness subpixels is rotated 180 deg with respect to the other, resulting in four domains that mutually compensate one other optically to provide a wide angle of viewing with no gray scale inversion. The detailed fabrication process is presented for a double SiOx oblique evaporation technique used to realize this 4-D TN LCD. A reverse rubbed polyimide fabrication process has also been successfully used and will be presented in the full length article. We present here the first complete viewing angle and contrast ratio data for a simple and successful 4-D TN LCD cell. jg p.2

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1994
Accession Number
ADA296842

Entities

People

  • David L. Johnson
  • Douglas R. Bryant
  • Jianmin Chen
  • Philip J. Bos
  • Syed H. Jamal

Organizations

  • Kent State University

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Contrast
  • Crystals
  • Evaporation
  • Fabrication
  • Gray Scale
  • Inversion
  • Liquid Crystal Displays
  • Liquid Crystals
  • Wide Angles

Fields of Study

  • Physics

Readers

  • Human-Computer Interaction (HCI).
  • Materials Science.
  • Thin Film Deposition Science.