Abstract: An electronic device may be provided with optical markers. A marker may be formed from a coating. The coating may be patterned to form a two-dimensional optical code or may be patterned to form an outline or other recognizable marker structure that helps provide information about an electronic device. A device with a sensor such as a depth sensor or other sensor may gather information on the electronic device and its markers. This information may include information on images captured with an image sensor while the electronic device is illuminated by one or more light beams from the depth sensor or other light sources. Markers may be configured to serve as mixed reality optical markers in a mixed reality system. Analysis of the mixed reality marker images or other sensor data may reveal information on device type, device location, device size, device orientation, and other information on a marked device.

Abstract: An electronic device may include electrical components and other components mounted within an interior of a housing. The device may have a display on a front face of the device and may have a glass layer that forms part of the housing on a rear face of the device. The glass layer may be provided with regions having different appearances. The regions may be textured, may have coatings such as thin-film interference filter coatings formed from stacks of dielectric material having alternating indices of refraction, may have metal coating layers, and/or may have ink coating layers. Textured surfaces may be formed on thin glass layers and polymer films that are coupled to the glass layer. A glass layer may be formed from a pair of coupled glass layers. The coupled layers may have one or more recesses or other structures to visually distinguish different regions of the glass layer.

Abstract: A portable electronic device includes a housing member. The portable electronic device also includes a front cover coupled to the housing member and defining a top surface defining a portion of an exterior front surface of the portable electronic device, a bottom surface opposite the top surface, a peripheral side surface, and a chamfered edge extending from the bottom surface to the peripheral side surface. The portable electronic device further includes a display stack attached to the bottom surface of the front cover, an opaque coating positioned on at least a portion of each of the peripheral side surface, the chamfered edge, and the bottom surface and configured to absorb light emitted by the display stack, and a rear cover coupled to the housing member and defining a second portion of the exterior rear surface of the portable electronic device.

Abstract: Markings for electronic devices are disclosed. Markings are formed through a laser-based process which transforms a colorant in a multilayer structure disposed along an interior surface of a cover. The transformed colorant defines a marking visible along an external surface of the electronic device.

Abstract: An electronic device may include electrical components and other components mounted within an interior of a housing. The device may have a display on a front face of the device and may have a glass layer that forms part of the housing on a rear face of the device. The glass layer may be provided with regions having different appearances. The regions may be textured, may have coatings such as thin-film interference filter coatings formed from stacks of dielectric material having alternating indices of refraction, may have metal coating layers, and/or may have ink coating layers. Textured surfaces may be formed on thin glass layers and polymer films that are coupled to the glass layer. A glass layer may be formed from a pair of coupled glass layers. The coupled layers may have one or more recesses or other structures to visually distinguish different regions of the glass layer.

Abstract: An electronic device may include electrical components and other components mounted within an interior of a housing. The device may have a display on a front face of the device and may have a glass layer that forms part of the housing on a rear face of the device. The glass layer may be provided with regions having different appearances. The regions may be textured, may have coatings such as thin-film interference filter coatings formed from stacks of dielectric material having alternating indices of refraction, may have metal coating layers, and/or may have ink coating layers. Textured surfaces may be formed on thin glass layers and polymer films that are coupled to the glass layer. A glass layer may be formed from a pair of coupled glass layers. The coupled layers may have one or more recesses or other structures to visually distinguish different regions of the glass layer.

Abstract: A cover assembly for an electronic device has a cover member including a glass ceramic material. An adhesion layer couples an interior coating to the cover member. The adhesion layer includes an oxide-based layer, such as a silicon oxide-based layer, and a coupling agent.

Abstract: An electronic device may be provided with a display and other electrical components. The display may be covered with a display cover layer. A rear housing member, the display cover layer, and other structures in the device may be formed from a transparent member. Transparent members in the device may be covered with layers such as layers of ink. The ink may have a polymer with colorant such as dye or pigment. Light-scattering particles such as inorganic dielectric particles may be incorporated into the polymer. The inorganic dielectric particles may have cores formed from materials such as titanium dioxide and coatings that help prevent discoloration of the titanium dioxide and degradation of surrounding polymer when the inorganic dielectric particles are exposed to ultraviolet light.

Abstract: An electronic device may have a display and a rear housing. A coating may be formed on an inner surface of a display cover layer for the display or on an inner surface of the rear housing. The coating may include one or more inorganic layers such as inorganic layers in a thin-film interference filter or other layer of material. A buffer layer having a polymer with adhesion promotion additive and embedded silicon oxide particles may be interposed between the coating and a glass layer forming the rear housing or between a patterned indium tin oxide coating on a display cover layer and an adhesive layer that attaches a pixel array to the display cover layer.

Abstract: An electronic device may have a display for displaying images. The display may be coupled to a housing on a front face of the device. The housing may have a transparent portion on an opposing rear face of the device. The electronic device may have structures with an adjustable appearance. The adjustable-appearance structures may include a mask with openings or other mask elements and a corresponding overlapped patterned layer containing an array of visual elements. The visual elements may have different appearances, so that movement of the mask relative to the patterned layer changes the appearance of the adjustable-appearance structures. The state of the adjustable-appearance structure may be changed during use of the device by a user or may be adjusted then fixed during manufacturing.

Abstract: An electronic device may have a display for displaying images. The display may be coupled to a housing on a front face of the device. The housing may have a transparent portion on an opposing rear face of the device. The electronic device may have structures with an adjustable appearance. The adjustable-appearance structures may include a mask with openings or other mask elements and a corresponding overlapped patterned layer containing an array of visual elements. The visual elements may have different appearances, so that movement of the mask relative to the patterned layer changes the appearance of the adjustable-appearance structures. The state of the adjustable-appearance structure may be changed during use of the device by a user or may be adjusted then fixed during manufacturing.

Abstract: An electronic device may have a housing in which electrical components such as a display and other components are mounted. Adjustable decoration may be formed on the electronic device. The adjustable decoration may serve as trim for the housing or a component mounted on the housing, may include a logo, or may be used to form other visual elements. The adjustable decoration may have an appearance that is electrically adjustable by control circuitry in the electronic device. The control circuitry may measure sensor data using sensors, may gather user input from input-output devices, and may gather other information with input-output devices to detect events. When an event is detected such as an incoming communication, a calendar reminder, user input, activation of an electrical component such as a camera, or other event, the control circuitry can adjust the appearance of the adjustable decoration.

Abstract: An electronic device may be provided with optical markers. A marker may be formed from a coating. The coating may be patterned to form a two-dimensional optical code or may be patterned to form an outline or other recognizable marker structure that helps provide information about an electronic device. A device with a sensor such as a depth sensor or other sensor may gather information on the electronic device and its markers. This information may include information on images captured with an image sensor while the electronic device is illuminated by one or more light beams from the depth sensor or other light sources. Markers may be configured to serve as mixed reality optical markers in a mixed reality system. Analysis of the mixed reality marker images or other sensor data may reveal information on device type, device location, device size, device orientation, and other information on a marked device.

Abstract: An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from a thin-film interference filter having a stack of dielectric layers. The coating may include an ink layer on the thin-film interference filter.

Abstract: A portable electronic device includes a housing member. The portable electronic device also includes a front cover coupled to the housing member and defining a top surface defining a portion of an exterior front surface of the portable electronic device, a bottom surface opposite the top surface, a peripheral side surface, and a chamfered edge extending from the bottom surface to the peripheral side surface. The portable electronic device further includes a display stack attached to the bottom surface of the front cover, an opaque coating positioned on at least a portion of each of the peripheral side surface, the chamfered edge, and the bottom surface and configured to absorb light emitted by the display stack, and a rear cover coupled to the housing member and defining a second portion of the exterior rear surface of the portable electronic device.

Abstract: An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from a thin-film interference filter having a stack of dielectric layers. The coating may include an ink layer on the thin-film interference filter.

Abstract: An electronic device may be provided with optical markers. A marker may be formed from a coating. The coating may be patterned to form a two-dimensional optical code or may be patterned to form an outline or other recognizable marker structure that helps provide information about an electronic device. A device with a sensor such as a depth sensor or other sensor may gather information on the electronic device and its markers. This information may include information on images captured with an image sensor while the electronic device is illuminated by one or more light beams from the depth sensor or other light sources. Markers may be configured to serve as mixed reality optical markers in a mixed reality system. Analysis of the mixed reality marker images or other sensor data may reveal information on device type, device location, device size, device orientation, and other information on a marked device.

Abstract: A cover assembly for an electronic device has a cover member including a glass ceramic material. An adhesion layer couples an interior coating to the cover member. The adhesion layer includes an oxide-based layer, such as a silicon oxide-based layer, and a coupling agent.