Abstract:
There is provided displaying a user interface during a power outage. A touchscreen comprises a lower layer comprising an electronic paper display and an upper layer comprising a transparent display. The touch screen may be arranged in a frequency converter and a drive system.
Abstract:
There is provided displaying a user interface during a power outage. A touchscreen comprises a lower layer comprising an electronic paper display and an upper layer comprising a transparent display. The touch screen may be arranged in a frequency converter and a drive system.