Japan Display Corporation (JDC) has unveiled its first transparent, glass-based capacitive fingerprint sensor, a groundbreaking innovation that leverages internal capacitive multi-touch technology originally developed for LCD panels. This new sensor is expected to begin commercial shipments in fiscal year 2018 and could eventually replace traditional silicon-based fingerprint sensors from companies like Qualcomm and Synaptics. With its transparent design, it offers a more seamless integration into smartphone displays, making it a potential game-changer in the biometric security market.
The glass-based sensor uses JDC's pixel eye technology, which has already been applied in smartphones and digital cameras. The company has further refined this technology to detect the unique patterns of fingerprints by sensing changes in capacitance caused by ridges and valleys on the skin. These sensors come in various sizes, including an 8x8mm model, offering flexibility for different device designs.
Looking ahead, Japan Display plans to incorporate its flexible display technology to develop flexible fingerprint sensors, pushing the boundaries of biometric recognition. This advancement could lead to more durable and adaptable fingerprint solutions, potentially becoming a key feature in future smartphones.
Japan's transparent fingerprint solution opens up new possibilities for integrating biometric sensors into a wider range of applications. As the smartphone market continues to grow, biometrics have become essential for user authentication. Apple introduced Face ID as an upgrade to Touch ID, while Synaptics has also made significant strides with its own display-mounted fingerprint sensors. These innovations are reshaping how users interact with their devices.
Synaptics claims its Clear ID technology is not only fast but also highly secure, capable of recognizing fingerprints even through screen protectors. It works under 1.5mm of glass and can function with wet, dry, or cold fingers—something that traditional silicon-based sensors struggle with. The first implementation of Synaptics' Clear ID was seen on the Vivo X20 Plus UD, launched in China in February 2017 at a price of 3,598 yuan.
Meanwhile, Qualcomm has been developing ultrasonic fingerprint technology, demonstrating it at the Mobile World Congress in Shanghai last year. Although details remain limited, the company is actively competing in the fingerprint sensor space.
Japanese companies like JDC may even supply Apple with their glass-based fingerprint sensors for future iPhone models. Reports suggest that JDC is in talks to provide LCD panels for the next generation of iPhones, signaling a possible collaboration between two industry leaders.
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