Apple has patented the invisible button. Details from the United States Patent Application website states that United States Patent Application 20100103116 is for a “Disappearing Button or Slider”.
So what is a Disappearing Button or Slider? The abstract says:
An input device is disclosed. The input is a deflection based capacitive sensing input. Deflection of a metal fame of the input device causes a change in capacitance that is used to control a function of an electrical device. The input appears invisible because it is made of the same material as the housing it is contained in. Invisible backlit holes may make the input selectively visible or invisible to the user.
Summary of the Invention
[0018]The invention relates in one embodiment an electronic device having an invisible input. The device has a frame having a top face with invisible holes formed therein. A capacitor reference is on an inner surface of the top face in the area of the invisible holes. An interior wall is separated from the top face and forms an interior space having a dielectric medium disposed therein. A capacitor plate is disposed on a surface of the interior wall opposite the first capacitor plate. A light source is disposed in the interior space and is configured to shine through the invisible holes. A capacitor sensor is electrically connected to the capacitive reference and the capacitor plate. When an object is placed on the frame in the area of the invisible holes and pressure is applied, the frame deforms. This deformation causes a change in capacitance between the capacitive reference and the capacitor plate. The capacitor sensor detects this change and converts it to an electrical signal.
[0019]The invention relates in another embodiment to an invisible input. The invisible input has a frame having a top face with invisible holes formed therein. A capacitor reference is on an inner surface of the top face in the area of the invisible holes. An interior wall is separated from the top face and forms an interior space having a dielectric medium disposed therein. A capacitor plate is disposed on a surface of the interior wall opposite the first capacitor plate. A light source is disposed in the interior space and is configured to shine through the invisible holes. A capacitor sensor is electrically connected to the capacitive reference and the capacitor plate. When an object is placed on the frame in the area of the invisible holes and pressure is applied, the frame deforms. This deformation causes a change in capacitance between the capacitive reference and the capacitor plate. The capacitor sensor detects this change and converts it to an electrical signal.
What will they think of next?
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