Abstract: A portable electronic device, having a single piece housing to carry operational components having a front opening, an integral bottom and sidewalls that cooperate to form a cavity in cooperation with the front opening. The operational components can include a display to present visual content disposed within the front opening and having an outermost protective layer, a main logic board that extends along a central portion of the cavity having a size and shape that bisects the cavity into a first portion and a second portion each having substantially the same size and shape, a power storage system supported at the bottom wall and comprising a first power storage unit located in the first portion and second power storage unit located in the second portion, each being coupled to the main logic board, and self-contained audio components positioned at each corner of the single piece housing.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: Electronic devices may include displays. A display may include a display unit that includes an array of display pixels and a backlight unit that provides backlight illumination for the display pixels. An automated alignment system may be used to align the display unit to the backlight unit. The alignment system may include a camera, a control unit, and computer-controlled positioners. The control unit may gather alignment feature location information from the display unit and the backlight unit using the camera. The control unit may determine a centroid of the backlight unit based on the alignment feature location information. The alignment feature location information may include the respective locations of openings in the backlight unit. The control unit may operate computer-controlled positioners to align the display unit with respect to the backlight unit using the centroid and to subsequently attach the display unit to the backlight unit.

Abstract: An electronic device display may include display layers mounted in a display chassis. The display chassis may have a plastic chassis structure and a metal chassis structure. Backlight structures may include a rectangular light guide plate. Light-emitting diodes within the backlight structures may emit light that is coupled into the light guide plate. The display chassis may have four edges that surround a rectangular opening. The rectangular opening may be configured to receive display layers such as the light guide plate. The metal chassis may have a C-shaped cross-section that forms a cavity in which the light-emitting diodes are mounted. The metal chassis structure may have engagement features such as holes and bent tabs. The plastic chassis structure may be overmolded on the metal chassis structure in engagement with the engagement features. Mounting structures may be formed from protruding portions of the plastic chassis structure.

Abstract: An electronic device may have polarizer layers, color filter layers, thin-film-transistor layers, and other display layers. A display layer may be separated from structures such as a display cover layer formed from clear glass or plastic and a touch sensor layer mounted on an inner surface of the display cover layer by an air gap. Cavities within an electronic device housing may serve as a source of dust and other contaminants. The air gap may be sealed against dust intrusion from a cavity within an electronic device using a dust sealing structure. The dust sealing structure may have a rectangular ring shape that runs around a rectangular peripheral portion of a display layer. The dust sealing structure may be formed from a tape-based structure, an elastomeric structure, a compressible foam structure, or a cured liquid structure.

Abstract: Electronic devices may include displays having backlight structures and display layers. The display layers may include alignment features. The backlight structure may include alignment features. The alignment features on the backlight structures may include transparent portions of the backlight structures. The alignment features on the display layers may include alignment marks that are visible through the transparent portions of the backlight structures. The transparent portions of the backlight structures may include openings that extend from a first surface of the backlight structures to an opposing second surface of the backlight structures. The openings may be filled by transparent members formed from plastic or glass. The transparent members may include additional alignment marks. The transparent members may include lensing portions that magnify the alignment marks on the display layers when viewed through the lensing portions.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: Electronic devices may include displays. A display may include a display unit that includes an array of display pixels and a backlight unit that provides backlight illumination for the display pixels. An automated alignment system may be used to align the display unit to the backlight unit. The alignment system may include a camera, a control unit, and computer-controlled positioners. The control unit may gather alignment feature location information from the display unit and the backlight unit using the camera. The control unit may determine a centroid of the backlight unit based on the alignment feature location information. The alignment feature location information may include the respective locations of openings in the backlight unit. The control unit may operate computer-controlled positioners to align the display unit with respect to the backlight unit using the centroid and to subsequently attach the display unit to the backlight unit.

Abstract: Electronic devices may include displays having backlight structures and display layers. The display layers may include alignment features. The backlight structure may include alignment features. The alignment features on the backlight structures may include transparent portions of the backlight structures. The alignment features on the display layers may include alignment marks that are visible through the transparent portions of the backlight structures. The transparent portions of the backlight structures may include openings that extend from a first surface of the backlight structures to an opposing second surface of the backlight structures. The openings may be filled by transparent members formed from plastic or glass. The transparent members may include additional alignment marks. The transparent members may include lensing portions that magnify the alignment marks on the display layers when viewed through the lensing portions.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness of the electronic device.

Abstract: A magnetic attachment mechanism and method is described. The magnetic attachment mechanism can be used to releasably attach at least two objects together in a preferred configuration without fasteners and without external intervention. The magnetic attachment mechanism can be used to releasably attach an accessory device to an electronic device. The accessory device can be used to augment the functionality of usefulness 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.