| 摘要 |
A method of controlling the retardation in a film comprising polymerised liquid crystal material, obtained by polymerisation of polymerised liquid crystal material, by varying the composition of the polymerised liquid crystal material and/or varying the polymerisation conditions during polymerisation of the polymerised liquid crystal material. The film may comprise a monoreactive polymerisable group and a multireactive polymerisable group. Also shown is a film with planar orientation having at least two regions or a pattern of regions with different retardation and an LCD comprising the film. The film may be used in optical, electrooptical, decorative and security applications. |
