Portable data medium e.g. smartcard, has screen designed such that screen is passed between activation state and deactivation state in form of pressure, friction and/or heat irreversible between states in response to user interaction
摘要
<p>The medium (1) has a contactless communication unit for performing a contactless communication and comprising a processor (2) connected with an antenna (3). A permanent screen (10) disables the contactless communication by the contactless communication unit in a deactivation state and enables the contactless communication in an activation state. The screen is designed such that the screen is passed between the activation state and the deactivation state in the form of pressure, friction and/or heat irreversible between the states in response to user interaction.</p>
