Molecular Crystals and Liquid Crystals, Vol.662, No.1, 120-125, 2018
Fabrication of half-polyimide-less liquid crystal device with fast response using reactive self-aligning amphiphile
We propose a new vertical alignment method for fast switching liquid crystal displays (LCDs) without the polyimide alignment layer on one side of a substrate. The key to this new method is the use of the amphoteric 2-carboxyethyl acrylate, which combines reactive acrylate and carboxylic acid groups to allow hydrogen bonding with substrate. The reactive group can achieve pre-tilt for a fast-switching of LC molecule, and the hydrogen bonding allow for vertical alignment of LC. The amphoteric material enables the manufacturing of cost-effective LCDs by reducing the number of steps in the process and fast switching by establishing pre-tilt alignment.
Keywords:Fast response;liquid crystal display;polyimide-less process;reactive amphiphile;self-assembly