Apparatus for displaying visual information by means of magnets

Details Apparatus for displaying visual information by means of magnets Apparatus for displaying visual information by means of magnets

G - Physics

09

F

40/40

G09F 9/00 (2006.01) G09F 9/37 (2006.01) G09F 13/04 (2006.01)

Patent

CA 1097915

DISPLAY DEVICE ABSTRACT OF THE DISCLOSURE A display device has a substrate and a flap rotatable about an axis in a plane parallel with the surface of the substrate between a first position in which one surface of the flap is opposed to the surface of the substrate and a second position in which the other surface of the flap is opposed to the surface of the substrate. A magnet is secured to the flap, being arranged to magne- tize one surface of the flap with a S pole and the other surface with a N pole. A driving magnet is located at the rear of the substrate and is movable relatively to the substrate. This driving magnet includes S pole and N pole magnetized regions arranged such that, when the driving magnet arrives at given position with respect to the substrate, a magnetic force acting between the driving magnet and the magnet of the flap causes the flap to be held at either one of its positions. The result is a simple construction and reliable operation.

301612

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