Geometrical waveguide illuminator and display based thereon

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12259553
APP PUB NO 20230107434A1
SERIAL NO

17666227

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Abstract

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An illuminator for illuminating a display panel includes a lightguide with an array of buried slanted bulk reflectors that out-couple portions of the light beam propagating in the lightguide through one of the lightguide surfaces. Polarization beam-splitting slanted surfaces may be used to provide polarized output. Such an illuminator may be used with a reflective display panel operating by polarization. The beam-splitting slanted surfaces operate as a polarizer, providing polarized illuminating light. The light reflected by the reflective panel may propagate back through the illuminator, and the polarization beam-splitting slanted surfaces may operate also as analyzer.

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Patent Owner(s)

  • META PLATFORMS TECHNOLOGIES, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Geng, Ying Bellevue, US 160 976
Gollier, Jacques Sammamish, US 258 2246
He, Sihui Sunnyvale, US 43 334
Jang, Changwon Bellevue, US 51 43
Parsons, Maxwell Seattle, US 50 200
Peng, Fenglin Redmond, US 86 362
Wheelwright, Brian Sammamish, US 137 585
Xu, Miaomiao Redmond, US 17 20

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