Accession Number:

ADA455825

Title:

A Study of the Dynamics of Reflection Color, Helical Axis Orientation, and Domain Size in Cholesteric Liquid Crystal Displays

Descriptive Note:

Corporate Author:

KENT STATE UNIV OH LIQUID CRYSTAL INST

Personal Author(s):

• Watson, P.
• Sergan, V.
• Anderson, J. E.
• Ruth, J.
• Bos, P. J.

Report Date:

1998-01-01

Pagination or Media Count:

5.0

Abstract:

The relaxation from the field-induced homeotropic state to the equilibrium planar state of cholesteric liquid crystals is investigated. By using an optical retro-reflection technique, we have isolated the dynamics of the orientation and pitch of cholesteric helices, and through scattering and microscopy techniques, we have determined domain size as a function of time for various surface treatments. These three factors determine the viewing angle, color, and brightness of a display. An analysis of the significance of surface selection in cholestric displays is presented.

Descriptors:

• *LIQUID CRYSTAL DISPLAY SYSTEMS
• EQUILIBRIUM(GENERAL)
• REFLECTION
• HELIXES
• MICROSCOPY
• PLANAR STRUCTURES

Subject Categories:

• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE