System and method for processing light in an electronic...

Details System and method for processing light in an electronic... System and method for processing light in an electronic...

2005-05-03

2005-05-03

O'Shea, Sandra (Department: 2875)

Illumination

With polarizer

C362S035000, C362S558000, C362S559000, C362S560000, C362S561000, C362S217060, C359S494010, C359S487030

Reexamination Certificate

active

06886954

ABSTRACT:
Embodiments of the present invention relate to a device for polarizing light in a backlighting system of an electronic display to conserve energy. Embodiments of the invention may comprise an optically transparent material that includes an interface therein to separate randomly polarized light into vertically polarized and horizontally polarized components. The optically transparent material may have a re-polarizing layer thereon to change a polarization of one of the separated components, and a reflective edge disposed at an angle substantially parallel to the interface.

REFERENCES:
patent: 5805337 (1998-09-01), Yoshida
patent: 5828471 (1998-10-01), Davis et al.
patent: 6663262 (2003-12-01), Boyd et al.

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