Liquid crystal display and method of manufacturing the same
CA 2294060 A1 · Owner: Nakatani, Hiroyuki · Inventors: Kira, Takatoshi; Nakahara, Makoto; Nakatani, Hiroyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid crystal display which exhibits an excellent display quality with satisfactory contrast because most of the spacers are provided under a black matrix and, even if light leaks because of the spacers the display is not , influenced by the leak. The liquid crystal display is composed of two substrates facing each other with spacers therebetween and liquid crystal provided in the space between the two substrates and is charcterized in that at least one of the two substrates has a black matrix formed thereon at least , one of the two substrates has a plurality of transparent electrodes arranged thereon, and more than 50 % of all the spacers are arranged directly under the black …
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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 June 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2020.
- 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.