Effect of water adsorption onto the polymer layer produced from the monomer carrying amide group in liquid crystal cells

ABSTRACT

The voltage holding ratio (VHR) of an active-matrix liquid crystal display (AMLCD) is a significant parameter because the image quality of the AMLCD decreases in case of low VHR. In some cases, the VHR of the LC cell, which is a prototype of the AMLCD, is decreased under an environment of high humidity and temperature. In order to restrict the significant decrease in the VHR, we proposed an LC cell with the polymer layer produced from the monomer 1-acryloyl-oxy-5-acryloyl-amino-naphthalene (1-AO-5-AANp). The LC cell exhibited comparably high VHR after being placed in an environment of high humidity and temperature. We presume that water molecules would be effectively adsorbed onto the polymer layer carrying the amide group, leading to a restriction of the significant decrease in VHR.

GRAPHICAL ABSTRACT

KEYWORDS:

• Voltage holding ratio
• water
• polymer layer
• amide group

Disclosure statement

No potential conflict of interest was reported by the authors.