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US 6,608,661 B1Granted
Photo-oriented polymer network material having desired azimuthal orientation and tilt angle and method for its production
AssigneeRolic AG
InventorsMartin Schadt, Andreas Schuster, Hubert Seiberle
Life of this patent
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Abstract
Orientation layers of monomeric or polymeric liquid crystal layers having any desired azimuthal orientation direction and a tilt angle are produced by irradiating at an angle differing from the normal to the surface photopolymers orienting parallel to linearly polarized light.
Claims54
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions, the orientation layer comprising a material to which an orienting property has been contactlessly imparted;
- and
- wherein the orienting property has been imparted by exposure to polarized light.
1 more element
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- and an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions,
- the orientation layer comprising a material which has a property of being responsive to polarized light, said property being that exposure to a single beam of polarized light induces an orientation direction and tilt angle to the material.
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- and
- an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions, the orientation layer comprising a material that is responsive to polarized light, and which was exposed to polarized light,
- wherein the exposure of the material to the polarized light has induced an orientation direction and a tilt angle to the material and wherein at least one of the orientation direction and the tilt angle is photostable.
1 more element
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- and
- an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions, the orientation layer comprising a material that is responsive to linearly polarized light;
- and which was exposed to linearly polarized light,
- wherein the material has a property that the linearly polarized light induces an orientation direction and a tilt angle to the material, wherein the orientation direction is parallel to a direction of polarization of the linearly polarized light.
2 more elements
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- and
- an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions, the orientation layer comprising a material that is responsive to polarized light;
- wherein a first portion of the material has been exposed through a mask to polarized light such as to induce a first orientation direction and a first tilt angle to the first portion of the material;
- and
- wherein, after removal of said mask, the first portion of the material and a second portion of the material are exposed to polarized light to induce a second orientation direction and a second tilt angle to the second portion of the material.
3 more elements
A liquid crystal display cell comprising:
- an oriented liquid crystal layer disposed between two plates;
- and
- an orientation layer disposed on an inner side of at least one of said plates adjacent the liquid crystal layer, wherein the orientation layer aligns adjacent liquid crystal molecules in predetermined azimuthal and tilt directions, the orientation layer comprising a material that is responsive to polarized light and which was exposed to polarized light,
- wherein the exposure has induced an orientation direction and a tilt angle to the material, the material having a property that allows the tilt angle to be controlled by selection of an irradiation angle and an irradiation time of the exposure.
1 more element
A method of providing an orientation layer comprising:
- providing on a substrate a material that is responsive to polarized light;
- and
- performing a first exposure of the material to the polarized light, wherein the first exposure induces an orientation direction and a tilt angle to the material.
A method of providing an orientation layer comprising:
- providing on a substrate a material that is responsive to polarized light;
- and
- exposing the material to the polarized light,
- wherein the exposing of the material to the polarized light induces an orientation direction and a tilt angle to the material, and wherein at least one of the orientation direction and the tilt angle is photostable.
1 more element
A method of providing an orientation layer comprising;
- providing on a substrate a material that is responsive to linearly polarized light;
- and
- exposing the material to the linearly polarized light,
- wherein the exposing of the material to the linearly polarized light induces an orientation direction and a tilt angle to the material, and wherein the orientation direction is parallel to a direction of polarization of the linearly polarized light.
1 more element
A method of providing an orientation layer comprising;
- providing on a substrate a material that is responsive to polarized light;
- positioning a mask adjacent to the material;
- exposing, through the mask, a first portion of the material to the polarized light to induce a first orientation direction and a first tilt angle to the first portion of the material;
- removing the mask;
- and
- exposing the first portion of the material and a second portion of the material to the polarized light to induce a second orientation direction and a second tilt angle to a second portion of the material.
3 more elements
A method of providing an orientation layer comprising;
- providing on a substrate a material that is responsive to polarized light;
- and
- exposing the material to the polarized light to induce an orientation direction and a tilt angle to the material,
- wherein the exposing includes controlling an irradiation angle and an irradiation time to adjust the tilt angle to any value between 0° and 90°.
1 more element
Dependencies are inferred from the claim text.