Abstract: Displays such as liquid crystal displays may be used in electronic devices. During operation of a display, electrostatic charges on the surface of the display may give rise to electric fields. One or more electric field shielding layers may be provided in the display to prevent the electric fields from disrupting operation of the liquid crystals material in the display. The shielding layers may be formed at a location in the stack of layers that make up the display that is above the liquid crystal material of the display. Touch sensors and thin film transistors may be located below the shielding layer.

Abstract: Electronic devices may be provided that include mechanical and electronic components. Connectors may be used to interconnect printed circuits and devices mounted to printed circuits. Printed circuits may include rigid printed circuit boards and flexible printed circuit boards. Cosmetic structures such as cowlings may be used to improve device aesthetics. Bumpers may be mounted over rough edges of printed circuit boards to protect flex circuits that are routed over the printed circuit boards. Fasteners may be soldered to solder pad structures on printed circuit boards.

Abstract: A display may be based on a display unit that is mounted within a chassis. The display unit may be a liquid crystal display unit. A backlight may be used to illuminate the display unit. The backlight may include a light guide plate. Light from a light source may be launched into an edge of the light guide plate. Scattered light from the light guide plate may travel vertically along a vertical axis that is perpendicular to the plane that contains the light guide plate. The scattered light may pass through the display unit and may serve as backlight for the display. The light guide plate may be mounted within a rectangular opening in the chassis. The edges of the rectangular opening and the edges of the light guide plate may be configured to reduce excessive reflections. These edges may have reflection-reducing coatings, non-planar surfaces, and other reflection-reducing configurations.

Abstract: Electronic devices such as handheld electronic devices may have display modules. The display modules may be covered with a layer of protective cover glass. Peripheral portions of the cover glass may be coated with an opaque masking layer to block interior portions of the device from view. An opening in the opaque masking layer can be formed over an active portion of the display module. To facilitate alignment of the display module active area with the opening in the cover glass masking layer, the display module may be provided with alignment marks. The alignment marks may be formed in opposing corners at an end of the display module. The alignment marks may be formed from metal structures on one of the glass layers in the display module. An opaque masking layer that blocks stray backlight may have openings that are formed over the metal structures.