Liquid crystal display element and method for driving same
CA 1304485 C · Owner: Yamagishi, Yasuo · Inventors: Iwasaki, Masayuki; Mochizuki, Akihiro; Yamagishi, Yasuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid crystal display element comprising a liquid crystal composition having an optically active compound as at least one constituent and showing a cholesteric phase when an electric field is not applied wherein the liquid crystal composition is arranged between substrates, at least one of which is provided with a transparent electrode, so that long axes of individual liquid crystal molecules are in parallel to one another and are oriented in the same direction as the surfaces of the substrates, and the long axes of the molecules are uniformly aligned in parallel vertically, or inclined to the surfaces of the substrates.
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 June 30, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 2009.
- 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.