Improvements in or relating to variable message displays

Details Improvements in or relating to variable message displays Improvements in or relating to variable message displays

G - Physics

09

F

G09F 9/33 (2006.01)

Patent

CA 2231730

The module is for use in a variable message display and comprises a holder 8 which can accommodate up to nine light emitting diodes which together form one pixel of the display. The holder is provided with a plurality of fins 11 which extend across and over the light emitting diodes to shade the diodes from sunlight. The ends 12 of the fins 11 are reduced in surface area so that the amount of surface which can reflect light is also reduced. The holder 8 is provided with a plurality of holes 10 to accommodating the light emitting diodes and each hole is provided with a protrusions 13 which are suitably shaped so that light emitting diodes having different diameters can be accommodated, thereby enabling the diodes to be correctly mounted in a tight fitting manner. The module is also provided with retaining means 4, 5 which enable the module to be secured to a printed circuit board.

Module destiné à un affichage de message variable. Comprend un support 8 pouvant loger jusqu'à neuf diodes électroluminescentes (DEL) qui produisent ensemble un pixel de l'affichage. Le support est doté d'un certain nombre d'ailettes 11 qui prolongent et surmontent les DEL afin de les protéger contre la lumière du soleil. Les extrémités 12 des ailettes 11 ont une surface réduite, ce qui réduit la surface susceptible de réfléchir de la lumière. Le support 8 est doté d'un certain nombre de trous 10 pour recevoir les DEL et chaque trou est muni de protubérances 13 façonnées de façon à permettre le logement de DEL de différents diamètres, qui pourront ainsi être bien ajustées. En outre, le module est doté de moyens de rétention 4, 5 qui permettent de le fixer à une carte de circuits imprimés.

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