Display array and power control circuit

G - Physics – 09 – F

Patent

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Details

G09F 9/00 (2006.01) G09F 9/37 (2006.01) G09G 3/34 (2006.01) H03H 7/20 (2006.01) G09F 13/22 (2006.01)

Patent

CA 2165621

An array if display elements are driven between ON and OFF positions where an element bright side is or is not displayed in the viewing direction by a magnetic field individual to each element. A Hall effect switch is located in each field and used to control a circuit in accord with the field polarity. The circuit may be used to provide lights which augment the appearance of an element in a viewing direction. A power control circuit using a phase control and a clipper is used to power the lights and the Hall element.

L'invention est un réseau d'éléments d'affichage qui, sous l'effet de champs magnétiques individuels, sont commutés entre les états de marche et d'arrêt selon que leur face lumineuse se trouve dans la direction de vue ou non. Un commutateur à effet Hall est placé dans chaque champ et sert à commander un circuit selon le signe du champ. Ce circuit peut être utilisé pour produire un éclairage qui augmente la visibilité des éléments d'affichage dans la direction de vue. Un circuit de commande d'alimentation utilisant une commande de phase et un écrêteur sont utilisés pour alimenter les dispositifs d'éclairage et l'élément à effet Hall.

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