The present invention relates to a switching device having programmable functionality markings. The switching device has: a switch, a functionality marking programmer, a functionality marking display, and a control module. The switch is used to control power supply to an electrical appliance. The functionality marking programmer allows a user to designate the switch to a specific functionality with a corresponding functionality marking. The functionality marking display displays the functionality marking programmed by the functionality marking programmer. The control module includes a processor and a memory. The memory stores computer executable instructions. When executed at the processor, the computer executable instructions is configured to: receive functionality marking programming instructions from the user via the functionality marking programmer, designate the functionality of at least one switch with a functionality marking according to the functionality marking programming instructions received, and display the programmed functionality marking of the switch via the functionality marking display.

Particular embodiments described herein provide a display that includes a mask that includes a one or more exposed areas, a top electrode, one or more bottom electrodes, a dielectric between the top electrode and the one or more bottom electrodes, and an electrical connection to create a differential voltage between the top electrode and the one or more bottom electrodes.

Particular embodiments described herein provide for a keycap. The keycap can include a protective layer and an active element, where the height of protective layer and the active element is less than six (6) millimeters in height. The keycap can also include a front plane layer, a back plane layer, where the front plane layer and the back plane layer comprise the active element, and an electrical connection through the keycap to provide electrical communication with the active element.

Particular embodiments described herein provide for an electronic device that can be configured to include a plurality of bio-sensing areas, where the bio-sensing areas are located in an area of the electronic device where a user typically comes into contact with the electronic device and a bio-signals engine, where the bio-signals engine can analyze bio signals detected by the bio-sensing areas. These bio-sensing areas can be processed for color, finish and material so as to blend with the electronic device enclosure thereby not degrading the visual appeal.

A switch unit has a display part that displays an image in at least one input area, a substrate provided above the display part, the substrate having a contact, and at least one substrate opening configured to allow the image in the at least one input area to be viewed from above, an operating button case that covers the substrate, having at least one button case opening, at least one operating button that has translucency, and that is freely pressed down through the at least one button case opening of the operating button case and causes conduction of the contact by being pressed down, light sources mounted on the substrate, that illuminate an area surrounding the at least one operating button, and a light transmissive water-proof sheet made of an elastic member.