Current iPhone models, like the iPhone 12 and iPhone 12 Pro series, have their Face ID system and sensor kit installed in the bangs at the top of the display. However, Apple is working on a system that will eventually allow it to minimize or eliminate bangs altogether.
In the patent application published on March 4, titled “Sensing System for Detecting Light Received by the Light-emitting Layer of Electronic Device Display Screens”, Apple listed a system that embeds the light detection layer into the display stack. The light sensors related to the light-sensing system can be distributed around or inside the active display area of the display screen.
The patent gives two direct examples, claiming that the light sensor can combine the object image of the touch screen, which can be used for the Touch ID in the screen based on the optical imaging system. The patent also believes that the iPhone’s ambient light sensor can also be included.
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More specifically, the system itself can include photodiodes or solar cell arrays integrated between pixel areas or around the light-emitting display. The system can use electrical signals from photodiodes or solar cells to sense colors or the intensity of light incident on the display stack.
The patent states that it mainly covers the use of ambient light sensors in the system, but adds that its value does not stop there. The ambient light sensor is just an example.
In other embodiments, the light-sensing system can be appropriately configured as or used with the following systems: optical imaging systems (such as cameras, light field sensors, depth sensors, fingerprint imaging sensors, iris Or retinal imaging system, etc.), touch input sensor, force input sensor, biometric measurement system (such as optical electrocardiogram sensor, blood oxygen saturation sensor, breathing sensor, etc.) and so on.
Most of the description of this patent focuses on the ambient light sensor. Even if it is only used for the ambient light sensor, the system can also be used to reduce the size of the bangs of future iPhone models, because the light sensor is currently embedded in the bangs.
However, in light of rumors that Apple is seeking to minimize the bangs or re-introduce Touch ID on future mobile phones, the patent application is likely to be part of an increasing number of technologies that may achieve this goal.
Apple submits numerous patents every week, so a single patent application does not give a good indication of the timing or possibility of product release.
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