US Patent 8488069 Electronic display with push buttons

One or more buttons are associated with an electronic display screen. The display screen is configured to display various information, such as button labels. The buttons are configured, such as by being at least partially transparent, so that the display is visible there through. Input to or activation of the buttons is determined passively, such as by a RF board located at an opposing side of the display screen from the button(s), the board configured to transmit and receive radio frequency signals, and an interface configured to provide a data connection to an electronic device. In this embodiment, the one or more buttons comprise one or more RF transponders.