Korean IT giant Samsung has unveiled a contactless ID card with an OLED display that shows a rotating digital image of the owner's face when placed by a RFID reader.
The prototype - demonstrated at the OLED Association booth at Digital Experience, a pre-CES event - uses RF-powered AMOLED (Active Matrix Organic Light-Emitting Diode) technology to securely store biographical information and digital imagery in the card.
The screen requires no additional battery power, instead drawing power from a nearby RF-powered source that is AMOLED adapted.
Samsung says the technology could be used to provide a "dynamic security feature" for online banking and e-commerce transactions as well as government identity cards.
You can see the card in action in a video posted by Engadget here.