According to foreign media reports, Apple will adopt a brand-new frameless design in the iPhone 8 and integrate all the functions of the front of the mobile phone onto the screen. This is the legendary apple application called "electrostatic lens capacitive fingerprint sensor." "The patent. This fingerprint sensor integrated into the screen can replace the function of the Home button. In other words, the Home key is really about to exit the arena!
The construction of this so-called capacitive fingerprint sensor comprises three main parts: a dielectric structure with a contact surface and a sensor surface, an array of capacitive sensing elements and an electrostatic lens formed in the dielectric structure. Apple explained in the patent, because the technology used in the screen may have a significant impact on the fingerprint reading accuracy of the sensor, so one of the difficulties in their research and development work is to make the fingerprint sensor placed under the screen more accurate.
In addition, Apple will provide this technology with the same level of protection as traditional sensors, and the effectiveness of biometric security systems may be affected by the accuracy of biometric data. This means that improving the detection resolution may promote security. Therefore, improving detection resolution is also a key issue in the development of this system.
Apple applied for this patent in September 2014 and has just been approved at the beginning of this month, exactly when Apple started developing the next generation iPhone. In any case, we must first work hard and pay for it.