Liquid crystal electro-optical device
CA 1293317 C · Owner: Yamazaki, Shunpei · Inventors: Sato, Masahiko; Yamazaki, Shunpei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A liquid crystal display comprises a pair of substrates provided with an electrode arrangement in matrix form. A chiral smectic C phase liquid crystal material is interposed between the substrates. In the liquid crystal layer each pixel consists of, a number of micro-domains which can be compared to polycrystal line structures. Interaction between adjacent pixels through well ordered liquid crystal structure is suppressed by virtue of the micro-domains.
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 December 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 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.