Homogeneous Alignment

In liquid crystals homogeneous alignment, sometimes called planar alignment, is the state of alignment where molecules align in parallel to a substrate. The opposite method is homeotropic alignment.

For planar alignment - polyimides can be used. One of the popular ones is PI-2555.

The surface has to be rubbed by paper or by a velvet or similar cloth in order to make the alignment axis parallel to the rubbing. However the exact mechanism if this alignment is not entirely clear.

This article does not cite any external source. HandWiki requires at least one external source. See citing external sources. Please help improve this article. Unsourced material may be removed in future. Find sources: "Homogeneous alignment" – news · newspapers · books · scholar · JSTOR (2021) (Learn how and when to remove this template message)

0.00 (0 votes) Original source: https://en.wikipedia.org/wiki/Homogeneous alignment. Read more