Thin-film optical retarders

Details Thin-film optical retarders Thin-film optical retarders

G - Physics

02

F

G02F 1/13363 (2006.01) G02F 1/1347 (2006.01)

Patent

CA 2569970

An oblique angle deposition is used to provide an A-plate optical retarder having at least one dense, form-birefringent layer. According to one embodiment, the dense, form- birefringent layer(s) are deposited as part of an FBAR stack to provide an all-dielectric full-function A/-C--plate trim retarder for LCD birefringence compensation. Advantageously, the dense structure of the full-function A/-C-plate trim retarder offers high durability and/or stability, thus making it well suited for providing polarization compensation in high light flux polarization-based projection systems.

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