Contactless metal cards with fingerprint sensor and display

A smartcard (SC) comprising:

• a metal card body (MCB) comprising one or more metal layers (ML);
• and
• an electronic system capable of performing security authentication;
• wherein the electronic system comprises:
• a display screen;
• a display driver control module for driving the display screen;
• a microprocessor controller connected to the display driver control module;
• and
• a communication module connected to and working with a dual interface chip module to perform the security authentication;
• further comprising:
• at least one antenna circuit for inductive coupling to power the electronic system;
• wherein the least one flexible antenna circuit is coupled to at least one discontinuity in the metal card body.

A smartcard (SC) comprising:

• a metal card body (MCB) comprising one or more metal layers (ML);
• and
• an electronic system capable of performing security authentication;
• wherein the electronic system comprises:
• a display screen;
• a display driver control module for driving the display screen;
• a microprocessor controller connected to the display driver control module;
• and
• a communication module connected to and working with a dual interface chip module to perform the security authentication;
• wherein:
• the metal card body has (i) a front metal face (metal layer) and (ii) a rear metal face (metal layer) separated from the front metal face by a dielectric layer of material.