Display device for irreversibly switching from a first state to a second state
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 )...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | 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. |
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