Hybrid banknote with electronic indicia
First Claim
1. A method of making a hybrid currency banknote, comprising:
- providing a flexible banknote having visible markings;
providing a ribbon or thread;
providing a light-emitting diode wafer having a plurality of micro-transfer printable inorganic light-emitting diodes connected by light-emitting diode tethers to the wafer;
providing a controller wafer having a plurality of controllers connected by tethers to the wafer;
micro-transfer printing at least one of the plurality of controllers and one or more of the plurality of inorganic light-emitting diodes from the controller wafer and the light-emitting diode wafer, respectively, with a stamp, thereby (i) fracturing each light-emitting diode tether that connected the one or more of the plurality of inorganic light-emitting diodes to the light-emitting diode wafer and each controller tether that connected the at least one of the plurality of controllers to the controller wafer and (ii) embedding the one or more of the plurality of inorganic light-emitting diodes and the at least one of the plurality of controllers in or on the ribbon or thread;
electrically connecting the at least one of the plurality of controllers to the one or more of the plurality of inorganic light-emitting diodes and to a power input connection; and
integrating the ribbon or thread in the flexible banknote.
3 Assignments
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Accused Products
Abstract
A hybrid currency banknote includes a banknote having visible markings. One or more light-controlling elements and a controller are embedded in or on the banknote. The controller is electrically connected to the one or more light-controlling elements to control the one or more light-controlling elements. A power input connection is electrically connected to the controller, or one or more light-controlling elements, or both. A power source can be connected to the power input connection, for example a piezoelectric or photovoltaic power source. In response to applied power, the controller causes the one or more light-controlling elements to emit light. A value can be stored in a memory in the controller and displayed by the light-controlling elements. The value can be assigned or varied by a hybrid currency teller machine.
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Citations
20 Claims
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1. A method of making a hybrid currency banknote, comprising:
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providing a flexible banknote having visible markings; providing a ribbon or thread; providing a light-emitting diode wafer having a plurality of micro-transfer printable inorganic light-emitting diodes connected by light-emitting diode tethers to the wafer; providing a controller wafer having a plurality of controllers connected by tethers to the wafer; micro-transfer printing at least one of the plurality of controllers and one or more of the plurality of inorganic light-emitting diodes from the controller wafer and the light-emitting diode wafer, respectively, with a stamp, thereby (i) fracturing each light-emitting diode tether that connected the one or more of the plurality of inorganic light-emitting diodes to the light-emitting diode wafer and each controller tether that connected the at least one of the plurality of controllers to the controller wafer and (ii) embedding the one or more of the plurality of inorganic light-emitting diodes and the at least one of the plurality of controllers in or on the ribbon or thread; electrically connecting the at least one of the plurality of controllers to the one or more of the plurality of inorganic light-emitting diodes and to a power input connection; and integrating the ribbon or thread in the flexible banknote. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification