Abstract: An electronic device display may have an active area with an array of pixels and an inactive area. A light-transmitting window may be formed in the inactive area. A light-sensing component such as an ambient light sensor may be mounted within the housing in alignment with the window. Opaque masking material may be provided on one or more layers of the display in the inactive area and may have an opening for the window. Backlight structures in the display may generate backlight illumination for pixels in the active area. Stray portions of the backlight illumination may be blocked using a stray light absorption layer on one of the layers of the display such as a layer other than the layer on which the opaque masking material is formed. The stray light absorption layer may have an opening aligned with the window.

Abstract: An electronic device display may have an active area with an array of pixels and an inactive area. A light-transmitting window may be formed in the inactive area. A light-sensing component such as an ambient light sensor may be mounted within the housing in alignment with the window. Opaque masking material may be provided on one or more layers of the display in the inactive area and may have an opening for the window. Backlight structures in the display may generate backlight illumination for pixels in the active area. Stray portions of the backlight illumination may be blocked using a stray light absorption layer on one of the layers of the display such as a layer other than the layer on which the opaque masking material is formed. The stray light absorption layer may have an opening aligned with the window.

Abstract: This application relates to determining uniformity of a housing for a computing device based on characteristics of a reflected pattern of light incident upon the housing. The reflected pattern of light can include an array of shapes such as dots whose orientation and location can provide indications of uniformity for the housing. The array of shapes are analyzed to determine certain geometric properties such as area for each shape in the array of shapes. The geometric properties can thereafter be compared to a predetermined geometric, threshold, or tolerance value, and each shape can be assigned a rank of uniformity. Once a rank of uniformity is defined for each shape, a compilation of uniformity values can be generated and used to find portions on the housing where the housing is not uniform or flat.

Abstract: This application relates to determining uniformity of a housing for a computing device based on characteristics of a reflected pattern of light incident upon the housing. The reflected pattern of light can include an array of shapes such as dots whose orientation and location can provide indications of uniformity for the housing. The array of shapes are analyzed to determine certain geometric properties such as area for each shape in the array of shapes. The geometric properties can thereafter be compared to a predetermined geometric, threshold, or tolerance value, and each shape can be assigned a rank of uniformity. Once a rank of uniformity is defined for each shape, a compilation of uniformity values can be generated and used to find portions on the housing where the housing is not uniform or flat.