Method for forming alignment layer and method for manufacturing liquid crystal display device using the same
AssigneeLG.Phillips LCD Co., Ltd.
InventorSu Hyun Park
Life of this patent
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Abstract
A method for forming an alignment layer for a liquid crystal display device, and a method for manufacturing a liquid crystal display device using the same are disclosed. The method includes preparing a substrate, coating an alignment material on the substrate, rubbing the substrate having the alignment material coated thereon, and irradiating ultraviolet (UV) rays onto the substrate having the alignment material coated thereon. The UV rays are irradiated over at least one area of the substrate having the alignment material coated thereon.
Claims24
A method for forming an alignment layer for a liquid crystal display device, the method comprising:
- preparing a substrate;
- coating an alignment material on the substrate;
- rubbing the substrate having the alignment material coated thereon;
- and
- performing a photo-alignment by irradiating ultraviolet (UV) rays onto the substrate having the alignment material coated thereon,
- wherein the UV rays are irradiated over at least one area of the substrate having the alignment material coated thereon,
- wherein the at least one area is either an entire surface of the substrate having the alignment material coated thereon, or a step region on the substrate having the alignment material coated thereon in which case other regions are being shielded with at least one mask, and
- wherein the direction of rubbing and the polarized direction of the UV rays are vertical to each other when the photo-alignment is realized by a photo-decomposition reaction, or the direction of rubbing and the polarized direction of the UV rays are parallel to each other when the photo-alignment is realized by a photo-isomerization reaction or a photo-dimerization reaction.
A method for manufacturing a liquid crystal display device, the method comprising:
- preparing first and second substrates;
- coating an alignment material on at least one of the substrates;
- rubbing the substrate having the alignment material coated thereon;
- performing a photo-alignment by irradiating ultraviolet rays onto the substrate having the alignment material coated thereon;
- and
- combining both substrates,
- wherein the ultraviolet rays are irradiated over at least one area of the substrate having the alignment material coated thereon,
- wherein the at least one area is either an entire surface of the substrate having the alignment material coated thereon, or a step region on the substrate having the alignment material coated thereon in which case other regions are shielded with at least one mask, and
- wherein the direction of rubbing and the polarized direction of the UV rays are vertical to each other when the photo-alignment is realized by a photo-decomposition reaction, or the direction of rubbing and the polarized direction of the UV rays are parallel to each other when the photo-alignment is realized by a photo-isomerization reaction or a photo-dimerization reaction.
Dependencies are inferred from the claim text.