Reflective optical polarizer device with controlled light distri

Details Reflective optical polarizer device with controlled light distri Reflective optical polarizer device with controlled light distri

1998-07-16

2000-06-27

Spyrou, Cassandra

Optical: systems and elements

Polarization without modulation

Polarization by reflection or refraction

359483, 359599, G02B 530

Patent

active

060813768

ABSTRACT:
An optical polarizer device that reflects light of one polarization over a controlled angular range, and improved twisted nematic liquid crystal display devices incorporating the same, is comprised of a grid of conductive elements supported on a textured substrate such that light of one polarization is transmitted through the grid while light of the orthogonal polarization is reflected. The angular distribution of the reflected light is determined by the texture of the substrate. Liquid crystal display embodiments include a configuration intended exclusively for front illumination by ambient light and a configuration which may use either front-illumination or back illumination by an internal light source.

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