A Simple Four-Domain Twisted Nematic Liquid Crystal Display,

reportActive / Technical Report | Accession Number: ADA296842 | Open PDF

Abstract:

A particularly simple four-domain4-D twisted nematicTN liquid crystal displayLCD 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

Author(s):
Chen, Jianmin ; Bos, Philip J. ; Bryant, Douglas R. ; Johnson, David L. ; Jamal, Syed H.
Author Organization(s):
KENT STATE UNIV OH
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-94-1-0270, $NSF-DMR89-20147
Monitor Series:
ONR
 Subject Terms
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*DISPLAY SYSTEMS, *LIQUID CRYSTALS, *POLYIMIDE RESINS, OPTICS, FABRICATION, OXIDES, LENGTH, SILICON, INVERSION, VISION, EVAPORATION, WIDE ANGLES, GRAY SCALE
Field(s)/Group(s):
Polymer Chemistry, Inorganic Chemistry, Plastics, Crystallography
Keyword(s):
*TWISTED NEMATIC, TN(TWISTED NEMATIC), OBLIQUE EVAPORATION
Report Date:
1993 Jan 01