Eliminating optical bounce of homeotropic liquid crystal cells with sputtered silicon dioxide alignment films by rubbing treatment
Journal
Displays
Journal Volume
32
Journal Issue
5
Pages
244-248
Date Issued
2011
Author(s)
Abstract
In this article, we propose a mechanical rubbing method to eliminate the optical bounce and decrease the response time of homeotropic liquid crystal (LC) cells with sputtered silicon dioxide alignment films. After gently rubbing the inorganic alignment film (sputtered silicon oxide, SiO2), the decreasing polar anchoring energy results in slightly smaller pretilt angle which gives LC a toppling direction to shorten the transition time while LC cell is applied by an external electric field. The results of our work show that this rubbing remedy can suppress the optical bounce. This simple and efficient surface treatment could be applied to liquid crystal on silicon (LCOS) technique for high resolution microdisplays and portable electronic products. © 2011 Elsevier B.V. All rights reserved.
Subjects
Flow effect; Homeotropic alignment; Optical bounce
SDGs
Other Subjects
Alignment films; Efficient surface; External electric field; Flow effects; High resolution; Homeotropic; Homeotropic alignment; Inorganic alignment; Liquid crystal cells; Liquid crystal on silicon; Microdisplays; Optical bounce; Polar anchoring energy; Portable electronics; Pre-tilt angle; Transition time; Alignment; Electric fields; Liquids; Nematic liquid crystals; Silica; Silicon compounds; Surface treatment; Silicon oxides
Type
journal article