Apple's US 20110080348: SELECTIVELY ILLUMINATED SECONDARY DISPLAY
This is directed to systems and methods for selectively illuminating a secondary display. An electronic device can include a primary display (e.g., a liquid crystal display (LCD) screen) and a secondary display (e.g., a printed segmented electroluminescence display). The primary display can be used to convey visual content to a user, and the secondary display can be used to guide a user providing inputs to the device. For example, the secondary display can be selectively illuminated to provide one or more indicators that represent where or how a user can provide inputs to the device.
The first claim says:
An electronic device comprising: a housing; a processor disposed within the housing; an input interface electrically coupled with the processor; a primary display electrically coupled with the processor and having a periphery; and a secondary display electrically coupled with the processor and disposed around at least a portion of the periphery of the primary display, wherein the processor is operative to: determine a condition of the electronic device; and direct the secondary display to illuminate a region adjacent to the input interface based at least on the determined condition.