METHOD OF MAKING AN ELEMENT OF LIQUID CRYSTAL POLYMER

摘要

An orientation layer, optical retarder or similar liquid-crystal-polymer element having fixed alignment properties can be made using an irradiation method not requiring linearly polarised light. A material is exposed to unpolarised or circularly polarised oblique irradiation. Monomeric or pre-polymeric liquid crystal molecules applied to, or mixed with, the exposed material adopt a preferred alignment and, while so aligned, are cross-linked, to result in the said fixed alignment properties.