Display with a wire grid polarizing beamsplitter
First Claim
1. A system for creating a patterned polarization compensator comprising:
- (a) a retardance characterization system for optically scanning a spatially variant retardance of a spatial light modulator with a first light beam; and
(b) a compensator patterning system for optically writing a spatially variant pattern into a photo-sensitive material with a second light beam.
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Accused Products
Abstract
A system for creating a patterned polarization compensator (550) has a retardance characterization system (560) for optically scanning the spatially variant retardance of a spatial light modulator (210). A compensator patterning system (565) writes a spatially variant photo-alignment pattern on a substrate (555) of a polarization compensator. The patterned polarization compensator is completed by a process that includes providing a photo-alignment layer onto which spatially variant photo-alignment layer is formed, providing a liquid crystal polymer layer onto the photo-alignment layer, and then fixing the liquid crystal polymer layer to form a spatially variant retardance pattern into the structure of the patterned polarization compensator.
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Citations
9 Claims
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1. A system for creating a patterned polarization compensator comprising:
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(a) a retardance characterization system for optically scanning a spatially variant retardance of a spatial light modulator with a first light beam; and (b) a compensator patterning system for optically writing a spatially variant pattern into a photo-sensitive material with a second light beam. - View Dependent Claims (2, 3, 4, 5)
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6. A method for fabricating a spatially patterned polarization compensator comprising:
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(a) scanning a spatial light modulator with a first light beam to measure a spatially variant retardance of said spatial light modulator; (b) providing a polarization compensator substrate with a photo-sensitive alignment layer; (c) scanning said polarization compensator substrate with a second light beam so as to form a spatially variant alignment pattern onto said photo-sensitive alignment layer; (d) coating said polarization compensator substrate with a liquid crystalline material; and (e) fixing said liquid crystal material to form a liquid crystal polymer layer. - View Dependent Claims (7)
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8. A method for fabricating a spatially patterned polarization compensator comprising:
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(a) optically scanning a spatial light modulator with a first light beam to measure a spatially variant retardance of said spatial light modulator; (b) providing a photo-sensitive optical material capable of supporting a spatially patterned retardance; (c) scanning said photo-sensitive optical material with a second light beam so as to form a spatially variant pattern onto said photo-sensitive optical material; and (d) completing said spatially patterned polarization compensator to form a spatially variant optical retardance which corresponds to said spatially variant pattern and which is stable under exposure to visible light.
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9. A system for creating a patterned polarization compensator comprising:
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(a) a retardance characterization system for optically scanning the spatially variant retardance of a spatial light modulator; (a1) applying a photo-alignment layer onto a substrate of said polarization compensator; and (a2) applying a liquid crystal material layer onto said photo-alignment layer; (b) a compensator patterning system for writing a spatially variant photo-alignment pattern on said polarization compensator; and (b1) fixing said liquid crystal material layer, to form a liquid crystal polymer layer with a spatially variant retardance pattern formed into the structure of said patterned polarization compensator.
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Specification