Method of making an element of liquid crystal polymer using alignment induced by unpolarized or circularly polarized radiation
AssigneeRolic AG
InventorsHubert Seiberle, Martin Schadt
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Abstract
A method of imparting a property to a material, the property being that cross-linkable monomeric or pre-polymeric liquid crystal molecules which may be placed on the layer would adopt preferred alignment. The method comprises exposing the material to unpolarised or circularly polarised radiation from an oblique direction, wherein the material is, for example, cross-linked by the irradiation, allowing monomeric or pre-polymeric liquid crystal molecules applied to or mixed with the exposed material to adopt the preferred alignment and while aligned cross-linking them. The invention also relates to LCD elements incorporating a preferred alignment.
Claims30
A method of making an element of a liquid crystal polymer, comprising imparting a property to a material, said property being that cross-linkable monomeric or pre-polymeric liquid crystal molecules placed on a layer of the material or mixed with the material adopt a preferred alignment,
- the method comprising exposing the material to unpolarised or circularly polarised radiation from an oblique direction, wherein the material is cross-linked by the radiation, allowing monomeric or pre-polymeric liquid crystal molecules applied to or mixed with the exposed material to adopt the preferred alignment and while aligned cross-linking them.
A method of making an element of a liquid crystal polymer, comprising imparting a property to a material, said property being that cross-linkable monomeric or pre-polymeric liquid crystal molecules placed on a layer,of the material or mixed with the material adopt a preferred alignment,
- the method comprising exposing the material to unpolarised or circularly polarised radiation from an oblique direction, wherein the radiation to which the material is exposed is zonewise patterned to generate locally different oblique radiation in one irradiation step, such that, in said imparted property, the liquid crystal molecules are zonewise aligned, allowing monomeric or pre-polymeric liquid crystal molecules applied to or mixed with the exposed material to adopt the preferred alignment and while aligned cross-linking them.
Dependencies are inferred from the claim text.