Abstract: An electronic device may be provided with a display and a multi-layer printed circuit. Integrated circuits and other components may be mounted to the multi-layer printed circuit. The display and multi-layer printed circuit may share a common layer formed from a flexible substrate. The flexible substrate may have portions that are integrated into the display and portions that are integrated into the multi-layer printed circuit board. The flexible substrate may contain patterned conductive traces that are used to route signals from components in the multi-layer printed circuit to display circuitry such as a display driver integrated circuit. An array of thin-film transistors may be used to control the emission of light from the display and may be formed on portions of the flexible substrate that are integrated into the display. The display may be a flexible display that includes an array of organic light-emitting diodes.

Abstract: Methods, systems and devices for generating an authentication key are provided. Two or more communications devices can generate an authentication key by monitoring a physical stimulus that is experienced by both devices (e.g., a common physical stimulus). Each device can then use an identical, predetermined algorithm to generate a common authentication key based on the stimulus. The devices can use the common authentication key to establish a secure network.

Abstract: An electronic device may have a display. The display may have an active region in which display pixels are used to display images. The display may have one or more openings and may be mounted in a housing associated with the electronic device. An electronic component may be mounted in alignment with the openings in the display. The electronic component may include a camera, a light sensor, a light-based proximity sensor, status indicator lights, a light-based touch sensor array, a secondary display that has display pixels that may be viewed through the openings, antenna structures, a speaker, a microphone, or other acoustic, electromagnetic, or light-based component. One or more openings in the display may form a window through which a user of the device may view an external object. Display pixels in the window region may be used in forming a heads-up display.

Abstract: An electronic device may have a display with backlight structures. The backlight structures may produce backlight that passes through the display layers in the display. The backlight structures may include a light guide plate that distributes light across the display layers. A light source such as a light-emitting diode light source may be used to provide light to the light guide plate. The light source may overlap an edge portion of the light guide plate. A light guide structure having a bend may be coupled between the light source and the light guide plate. The light guide structure may be used to guide the light from the light source to the light guide plate via total internal reflection. A light guide structure may be provided with light leakage promotion structures to evenly distribute light from a centralized light source along the edge of a light guide plate.

Abstract: A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing can be machined from a single billet of material, such as a billet of aluminum. The single piece housing can include ledges with a surface receiving a trim bead and a cover. Corner brackets can be attached to the single piece housing to improve the damage resistance of the housing.

Abstract: An electronic device may be provided with a display and a multi-layer printed circuit. Integrated circuits and other components may be mounted to the multi-layer printed circuit. The display and multi-layer printed circuit may share a common layer formed from a flexible substrate. The flexible substrate may have portions that are integrated into the display and portions that are integrated into the multi-layer printed circuit board. The flexible substrate may contain patterned conductive traces that are used to route signals from components in the multi-layer printed circuit to display circuitry such as a display driver integrated circuit. An array of thin-film transistors may be used to control the emission of light from the display and may be formed on portions of the flexible substrate that are integrated into the display. The display may be a flexible display that includes an array of organic light-emitting diodes.

Abstract: An accessory device is described. The accessory device may include a base region and sidewalls that combine with the base region to secure an electronic device with the accessory device. The accessory device may include a rigid layer having openings in at least some corners of the rigid layer. In order to facilitate insertion and extraction of the electronic device, an elastic material disposed in the openings may join with two sidewalls at the corners, allowing the sidewalls to move or bend with respect to other sidewalls. The accessory device may include a protective layer embedded in a sidewall to provide support to an opening formed in the sidewall. The sidewall may include a protrusion supported by features embedded in sidewall to facilitate pressing the protruding feature, which corresponds to pressing a button of the electronic device.

Abstract: An electronic device housing may have conductive walls and planar metal internal housing structures. A display in the electronic device may have a touch sensor layer such as an array of capacitive touch sensor electrodes. The display may have display layers in a plastic chassis structure and a metal chassis structure. A display layer may have a conductive surface. Conductive tape may be used to couple the touch sensor to the metal chassis structure and a metal radio-frequency shielding structure. Conductive tape may also be used to short the conductive surface of the display layer to the internal metal housing structure. Segments of conductive tape may run along each of the four edges of a display and may overlap at display corners. Conductive foam structures may be used to short the segments to adjacent portions of the conductive housing walls.

Abstract: A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing can be machined from a single billet of material, such as a billet of aluminum. The single piece housing can include ledges with a surface receiving a trim bead and a cover. Corner brackets can be attached to the single piece housing to improve the damage resistance of the housing.

Abstract: Methods, systems and devices for generating an authentication key are provided. Two or more communications devices can generate an authentication key by monitoring a physical stimulus that is experienced by both devices (e.g., a common physical stimulus). Each device can then use an identical, predetermined algorithm to generate a common authentication key based on the stimulus. The devices can use the common authentication key to establish a secure network.

Abstract: Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery.

Abstract: An electronic device may have a display. The display may have an active region in which display pixels are used to display images. The display may have one or more openings and may be mounted in a housing associated with the electronic device. An electronic component may be mounted in alignment with the openings in the display. The electronic component may include a camera, a light sensor, a light-based proximity sensor, status indicator lights, a light-based touch sensor array, a secondary display that has display pixels that may be viewed through the openings, antenna structures, a speaker, a microphone, or other acoustic, electromagnetic, or light-based component. One or more openings in the display may form a window through which a user of the device may view an external object. Display pixels in the window region may be used in forming a heads-up display.

Abstract: Electronic devices may include displays having backlight structures that include optical films. The optical films may help guide light from the backlight structures to display layers that generate display images using the light. The optical films may be attached together at one or more locations. The optical films may be attached to a structural member of the backlight structures. The structural member may be formed along each edge of the optical films and prevent the optical films from sliding within the display. Each optical film may be designed to expand to a common lateral size when the display is operated at a display operating temperature. The optical films may each include an elongated opening such as a slot through which a pin can be placed to partially constrain the movement of the optical films while allowing the optical films to expand or contract under changing thermal conditions in the display.

Abstract: An accessory device is described. The accessory device may include a base region and sidewalls that combine with the base region to secure an electronic device with the accessory device. The accessory device may include a rigid layer having openings in at least some corners of the rigid layer. In order to facilitate insertion and extraction of the electronic device, an elastic material disposed in the openings may join with two sidewalls at the corners, allowing the sidewalls to move or bend with respect to other sidewalls. The accessory device may include a protective layer embedded in a sidewall to provide support to an opening formed in the sidewall. The sidewall may include a protrusion supported by features embedded in sidewall to facilitate pressing the protruding feature, which corresponds to pressing a button of the electronic device.

Abstract: An accessory device is described. The accessory device may include a base region and sidewalls that combine with the base region to secure an electronic device with the accessory device. The accessory device may include a rigid layer having openings in at least some corners of the rigid layer. In order to facilitate insertion and extraction of the electronic device, an elastic material disposed in the openings may join with two sidewalls at the corners, allowing the sidewalls to move or bend with respect to other sidewalls. The accessory device may include a protective layer embedded in a sidewall to provide support to an opening formed in the sidewall. The sidewall may include a protrusion supported by features embedded in sidewall to facilitate pressing the protruding feature, which corresponds to pressing a button of the electronic device.

Abstract: A three-dimensional feature is formed in a surface of a component. Material is removed from the component by rotating an abrading tool about a first axis. While the abrading tool is rotated, the component (and/or a shaft coupled to the abrading tool) is rotated on a second axis. The second axis may be transverse to the first axis and may run through a center of the three-dimensional feature. The abrading tool may correspond to the three-dimensional feature. For example, the abrading tool may be configured to contact an entirety of an exterior of the three-dimensional feature during the removal operation, fill the three-dimensional feature during the removal operation, and/or have a shape that corresponds to the shape of the three-dimensional feature in two planes that are normal to each other.

Abstract: A tablet device determines a spatial relationship between the tablet device and a protective cover. The tablet device operates in accordance with the spatial relationship.

Abstract: Flexible electronic devices may be provided. A flexible electronic device may include a flexible display, a flexible housing and one or more flexible internal components configured to allow the flexible electronic device to be deformed. Flexible displays may include flexible display layers, flexible touch-sensitive layers, and flexible display cover layers. The flexible housing may be a multi-stable flexible housing having one or more stable positions. The flexible housing may include a configurable support structure that, when engaged, provides a rigid support structure for the flexible housing. The flexible internal components may include flexible batteries, flexible printed circuits or other flexible components. A flexible battery may include flexible and rigid portions or may include a lubricious separator layer that provides flexibility for the flexible battery.

Abstract: An electronic device may have a display. The display may have an active region in which display pixels are used to display images. The display may have one or more openings and may be mounted in a housing associated with the electronic device. An electronic component may be mounted in alignment with the openings in the display. The electronic component may include a camera, a light sensor, a light-based proximity sensor, status indicator lights, a light-based touch sensor array, a secondary display that has display pixels that may be viewed through the openings, antenna structures, a speaker, a microphone, or other acoustic, electromagnetic, or light-based component. One or more openings in the display may form a window through which a user of the device may view an external object. Display pixels in the window region may be used in forming a heads-up display.

Abstract: A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and no on. The portable computing device can include a single piece housing formed from a radio opaque material with a cover formed from a radio transparent material. To implement a wireless interface, an antenna stack-up can be provided that allows an antenna to be mounted to a bottom of the cover. Methods and apparatus are provided for improving wireless performance. For instance, in one embodiment, a metal housing can be thinned to improve antenna performance. As another example, a faraday cage can be formed around speaker drivers to improve antenna performance.