Color electroluminescent displays
CA 2496290 A1 · Owner: Wu, Xingwei · Inventors: Nakua, Abdul M.; Wu, Xingwei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to color electroluminescent displays comprising a novel sub-pixel structure and method for making the same. The subpixel structure has an electroluminescent phosphor which emits blue light, and a photoluminescent phosphor which emits at least one other color as a result of absorption of the blue light. The invention is also directed to novel photoluminescent phosphor materials.
Read the whole patent
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 October 16, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2025.
- 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.