Thermo-sensitive payment card
AssigneeBlock, Inc.
InventorsKyle Fletcher, Ashutosh Dhodapkar
Life of this patent
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Abstract
Technology is described for providing and using a thermo-sensitive payment card. An example payment card comprises a card substrate and a personalization layer overlaying the card substrate. The personalization layer includes a first region and a second region surrounding the first region. The first region includes an account number associated with an account of a user, and the account of the user is maintained by a payment service system that issues the payment card. At least one of the first region or the second region comprises a thermochromic ink such that application of heat to the first region or the second region having the thermochromic ink causes a change in color of the personalization layer so as to reveal the account number.
Claims20
A payment card comprising:
- a hardware chip embedded in a card substrate;
- a biometric element embedded in the card substrate;
- a heating element embedded in the card substrate;
- the card substrate, wherein a surface of the card substrate comprises at least one thermochromic ink at a region of the card substrate, wherein a different color of the at least one thermochromic ink presents at the region responsive to changes in temperature initiated by the heating element in response to use of the biometric element of the payment card;
- and
- a graphical display, wherein the graphical display included in the payment card comprises an LCD display for displaying different information at different times that is associated with at least one of the payment card or a user account.
A payment card comprising:
- a hardware chip embedded in a card substrate;
- a biometric element embedded in the card substrate;
- a heating element embedded in the card substrate;
- the card substrate, wherein a surface of the card substrate comprises at least one thermochromic ink at a region of the card substrate, wherein a different color of the at least one thermochromic ink presents at the region responsive to changes in temperature initiated by the heating element in response to use of the biometric element of the payment card;
- and
- a graphical display comprising an LCD display that is controllable to display different information associated with at least one of the payment card or a user account at different times.
A payment card comprising:
- a card substrate, wherein a surface of the card substrate comprises at least one thermochromic ink at a region of the card substrate, wherein a different color of the at least one thermochromic ink presents at the region responsive to changes in temperature initiated by a heating element in response to use of a biometric element of the payment card, and wherein a change in temperature to present the different color of the region reveals information associated with the payment card or with a user account;
- a hardware chip embedded in the card substrate;
- the biometric element embedded in the card substrate;
- the heating element embedded in the card substrate;
- and
- a graphical display comprising an LCD display, wherein the graphical display, included in the payment card with the card substrate having the surface comprising the at least one thermochromic ink, is configured for displaying additional information associated with at least one of the payment card or the user account.
Dependencies are inferred from the claim text.