Display device for irreversibly switching from first state...

G - Physics – 02 – B

Patent

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Details

G02B 26/02 (2006.01)

Patent

CA 2539630

The display device (10) capable of irreversibly switching from a first indicating state to a second indicating state comprises a chamber (14) containing an electrolytic liquid (16) and having at least one exit opening (46), and at least two electrodes (22,24) located in said chamber (14) and in contact with said electrolytic liquid (16) as well as subjectable to electric voltage, wherein, upon application of electric voltage of a predetermined level to said electrodes (22,24), gas is generated in said chamber (14) causing the pressure within said chamber (14) to exceed a threshold value such that liquid (16) irreversibly exits said chamber (14) through said at least one exit opening (46) thereby switching from the first indicating state to the second indicating state.

L'invention porte sur un dispositif d'affichage (10) pouvant passer irréversiblement d'un premier état d'indication à un second état d'indication. Ce dispositif comprend une chambre (14) qui contient un liquide électrolytique (16) et est pourvue d'au moins une ouverture de sortie (46), et au moins deux électrodes (22, 24), situées dans la chambre (14), en contact avec le liquide électrolytique (16) et soumises à une tension électrique. Lors de l'application d'une tension électrique d'un niveau prédéterminé sur les électrodes (22, 24), du gaz est généré dans la chambre (14) ce qui entraîne la pression à l'intérieur de la chambre (14) à dépasser une valeur de seuil de manière que le liquide (16) sorte inévitablement de la chambre (14) à travers au moins une ouverture de sortie (46), passant ainsi du premier état d'indication au second état d'indication.

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