Accession Number:

ADA361367

Title:

A New Non-Rubbing Technique for Liquid Crystal Alignment

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR BIOMOLECULAR SCIENCE AND ENGINEERING

Personal Author(s):

• Shashidhar, R.
• Grueneberg, K.
• Shenoy, D.
• Peek, B.
• Kakarla, U.

Report Date:

1997-01-01

Pagination or Media Count:

4.0

Abstract:

A new non-rubbing technique for uniform, planar alignment of liquid crystals has been developed. It involves a combination of chemisorption and UV-induced photo-dimerization. By varying chemical structure of the outermost part of the alignment layer, it has been possible to control the pretilt of the liquid crystal molecules at the surface ranging from 0 to 20 degrees. A feature of the process is that it is a room temperature process and applicable to a variety of substrates. Data on LCD cells fabricated using these alignment layers are presented.

Descriptors:

• *LIQUID CRYSTALS
• *FLAT PANEL DISPLAYS
• CHROMOPHORES
• ALIGNMENT
• CHEMISORPTION

Subject Categories:

• Test Facilities, Equipment and Methods
• Crystallography
• Electrooptical and Optoelectronic Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE