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US 2014/0212798 A1Published application
Maskless process for pre-tilting liquid crystal molecules
AssigneeKent State University
InventorHiroshi YOKOYAMA
Life of this patent
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Abstract
A method of tilting liquid crystal molecules is presented. The method entails providing a substrate including a photoalignment layer on top of a layer of liquid crystal molecules. The photoalignment layer is exposed to patterned light that is incident on the substrate at a substantially normal angle. The patterned light is polarized in a polarization direction that is non-parallel to an incident surface of the substrate.
Claims17
A method of tilting liquid crystal molecules, the method comprising:
- providing a substrate including a photoalignment layer on top of a layer of liquid crystal molecules;
- and
- exposing the photoalignment layer to patterned light, wherein the patterned light has a pattern including dark areas and bright areas, the patterned light being polarized in a polarization direction that is non-parallel to an incident surface of the substrate, wherein the patterned light is incident on the substrate at a substantially normal angle.
A method of tilting liquid crystal molecules, the method comprising:
- providing a substrate including a photoalignment layer on top of a layer of liquid crystal molecules;
- and
- directing light at the photoalignment layer at a substantially normal angle of incidence and non-continuously such that light and absence of light alternate on a spot of the photoalignment layer, wherein the light is polarized in a polarization direction that is non-parallel to an incident surface of the substrate.
Dependencies are inferred from the claim text.