Abstract: An electronic device display may have an active area with pixels. An optical sensor may be formed under a sensor region in the active area. During operation, ambient light and/or other light associated with the optical sensor may pass through the sensor region. To ensure that the light for the optical sensor can pass through the display, the display may have one or more layers with sensor openings such as a metal layer and a pressure sensitive adhesive layer that attaches the metal layer to the pixels of the display. To help minimize visibility of the openings in the sensor region, the pressure sensitive adhesive layer may be configured to have a reflectivity that matches the appearance of the display in the sensor region to surrounding areas. Undesired light output uniformity can be reduced by ensuring that the substrate material in the display has a low light absorption coefficient.

Abstract: An electronic device may have a display overlapped by a cover layer. Portions of the surface of the display and cover layer may have curved profiles. The display may include a flexible substrate with bent edge portions protruding from a central region. Gaps may be formed between regions of pixels on a common display substrate or between separate display substrates. A light source may emit light through a gap. Optical components such as sensors may be aligned with windows in the display. The windows may be formed from transparent portions of a display layer that are surrounded by pixels. A frame may be used to support the flexible substrate. The frame may have a metal portion and a polymer portion molded to the metal portion. Openings and other structures in the frame may accommodate components such as optical sensors. Components may be aligned with frame openings and display windows.

Abstract: An electronic device may have a display overlapped by a cover layer. Portions of the surface of the display and cover layer may have curved profiles. The display may include a flexible substrate with bent edge portions protruding from a central region. Gaps may be formed between regions of pixels on a common display substrate or between separate display substrates. A light source may emit light through a gap. Optical components such as sensors may be aligned with windows in the display. The windows may be formed from transparent portions of a display layer that are surrounded by pixels. A frame may be used to support the flexible substrate. The frame may have a metal portion and a polymer portion molded to the metal portion. Openings and other structures in the frame may accommodate components such as optical sensors. Components may be aligned with frame openings and display windows.

Abstract: A plurality of fibers may be included in an electronic device display to allow the display to have a curved output surface. Each fiber may guide light from one or more display pixels on the display panel to a display output surface. The fibers may be bent, allowing light from the display pixels to be displayed on a three-dimensional display output surface of any desired shape. The fibers may be formed from a high refractive index core surrounded by a cladding. The fibers may be formed from an activated photoactive material. The fibers may cover the entire display panel, the periphery of the display panel, or the corners of the display panel. The display panel may have one or more bends. Polarizing fibers may be used to both guide light from the display panel and serve as a linear polarizer for the display.