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Expired Canadian patentCanada

Modular flat-screen television displays and modules and circuit drives therefor

CA 1305803 C · Owner: Brody, Thomas Peter · Inventors: Brody, Thomas Peter

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A modular flat-screen television display having a large area image can be made using an array of modules of easily manufacturable size and preferably removable. The image on each module extends to the edge of the module so that when placed in the array there is no substantial interruption in the television image since the distance between modules is the same as the distance between picture elements within the modules. Control and drive circuitry enable each module to be driven at the same time, thereby decreasing the time it takes to refresh the entire display. The modules contain picture elements which may be emissive, reflective or transmissive.

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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

  • Granted July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 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.
FiledJuly 17, 1989
GrantedJuly 28, 1992
Term endedJuly 28, 2009
Patent numberCA 1305803 C
Classification (IPC)G09G3/00 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedJuly 17, 1989Patent grantedJuly 28, 1992Term endedJuly 28, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.