Planar light emitting device
CA 1289534 C · Owner: Yoshida, Shigeyuki · Inventors: Yoshida, Shigeyuki; Inubushi, Toshiya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A planar light emitting device for use with for, example, a liquid crystal displaypanel comprising a body, which is formed of a transparent synthetic resin a light, emitting panel which has one surface thereof worked into a prism in correspondence with the liquid crystal displaypanel and which has reflective sheets respectively stuck on slanting surfaces formed on both surfaces thereof a, plurality of light sources which are disposed at positions not opposing to the light emitting panel and a light, guide plate which is thinned in a wedge shape as it becomes more distant from the light sources.
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
- Granted September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.