An anonymous reader quotes a report from Apple Insider: Apple on Tuesday was granted a patent detailing technology that allows for ear speakers, cameras and even a heads-up display to hide behind an edge-to-edge screen, a design rumored to debut in a next-generation iPhone later this year. Awarded by the U.S. Patent and Trademark Office, Apple's U.S. Patent No. 9,543,364 for "Electronic devices having displays with openings" describes a method by which various components can be mounted behind perforations in a device screen that are so small as to be imperceptible to the human eye. This arrangement would allow engineers to design a smartphone or tablet with a true edge-to-edge, or "full face," display. With smartphones becoming increasingly more compact, there has been a push to move essential components behind the active -- or light-emitting -- area of incorporated displays. Apple in its patent suggests mounting sensors and other equipment behind a series of openings, or through-holes, in the active portion of an OLED or similar panel. These openings might be left empty or, if desired, filled with glass, polymers, radio-transparent ceramic or other suitable material. Positioning sensor inputs directly in line with said openings facilitates the gathering of light, radio waves and acoustic signals. Microphones, cameras, antennas, light sensors and other equipment would therefore have unimpeded access beyond the display layer. The design also accommodates larger structures like iPhone's home button. According to the document, openings are formed between pixels, suggesting a self-illuminating display technology like OLED is preferred over traditional LCD structures that require backlight and filter layers. Hole groupings can be arranged in various shapes depending on the application, and might be larger or smaller than the underlying component. If implemented into a future iPhone, the window-based HUD could be Apple's first foray into augmented reality. Apple leaves the mechanics unmentioned, but the system could theoretically go beyond AR and into mixed reality applications.