Abstract: A method includes determining a presence of a protective liner on a display of a device using a capacitive sensor positioned proximate the display. An alignment guide is generated on the display responsive to determining the presence of the protective liner. A device includes a display, a capacitive sensor positioned proximate the display, and a processor to determine a presence of a protective liner on the display using the capacitive sensor and to generate an alignment guide on the display responsive to determining the presence of the protective liner.

Abstract: Systems and methods for protecting a mobile device screen utilize a screen protector overlying the display screen lens, wherein the screen protector includes a conductive region. The device face includes a plurality of conductors underlying the screen protector at the conductive region. The conductors are capacitively coupled in the presence of the screen protector, and are capacitively decoupled when the screen protector is removed. This allows the device to detect removal of the screen protector and to perform a responsive action such as alerting a device user that the screen protector is not installed, instructing the user to install a screen protector, storing an indication that the screen protector is not installed and transmitting an indication that the screen protector is not installed.

Abstract: A decorated lens has a transparent layer applied within a first area of the lens, wherein the transparent layer is transparent to light in a visible band and transparent to light in an infrared band. The decorated lens also includes a dichroic filter layer applied within the first area of the lens, wherein the dichroic filter layer is transparent to the light in the infrared band. The transparent layer and the dichroic filter layer in combination create a visibly opaque coating on the first area of the lens.