Display screen allowing for the visual display of the contour of an image and method to control such a screen
CA 1317663 C · Owner: Etat Francais Represente Par Le Ministere Des Postes, Des Telecommunications Et De L'Espace (Centre National D'Etudes Telecommunications Et De L'Espace (Centre National D'Etudes · Inventors: Maurice, Francois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A display screen allowing for the visual display of the contour of an image and a method for controlling such a screen. According to the present invention, the counter-electrode is etched on elementary motifs electrically insulated from each other. Each motif covers part of the addressed electrodes. The display of the image is effected normally, but with the possibility of having its contour appear without using additional means. Such a device finds particular application for display screens.
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 May 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 2010.
- 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.