Methods and apparatus for actuating displays
CA 2795329 C · Owner: Pixtronix, Inc. · Inventors: Steyn, Jasper Lodewyk; Hagood, Nesbitt W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to spatial light modulators for use in display apparatus. In particular the invention relates to spatial light modulators that include a substrate defining a plane and a shutter suspended over the substrate by a compliant beam. The compliant beam has a cross-sectional thickness in a dimension parallel to the plane of the substrate between about 0.2µm and about 10µm. In one embodiment a thickness of the compliant beam in a dimension perpendicular to the plane of the substrate is at least about 1.4 times the cross-sectional width of the compliant beam in the dimension parallel to the plane of the substrate.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 23, 2006 and granted April 7, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.