Low drive voltage display device
CA 1262974 C · Owner: Koninklijke Philips Electronics N.V. · Inventors: De Vaan, Adrianus J.S.M.; Welzen, Theodorus L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Low drive voltage display device. In a display device having a matrix structure the number of rows to be addressed is selected to be smaller than is possible on the ground of threshold steepness. The required selection voltages can then be selected to be considerably lower than the voltages in accordance with the Alt & Pleshko addressing scheme.
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 November 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 14, 2006.
- 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.