Synaptics Fingerprint Sensors Driver
Designed to enable smartphones with infinity displays, Synaptics' Clear ID in-display fingerprint sensors are placed in a natural location directly in the OLED touchscreen, eliminating the need for buttons and bezels. A fingerprint icon in the display guides the user and disappears upon authentication. We already knew that Vivo is the company that partnered with Synaptics to launch the first smartphone in the world with a fingerprint sensor. Synaptics this week introduced its first Clear ID FS in-display optical sensor that can be installed under the surface of an OLED screen.
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Synaptics Fingerprint Sensors Driver
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How fingerprint scanners work - optical, capacitive, and other variants
How fingerprint scanners work: Technology has moved on a lot from Synaptics Fingerprint Sensors early days too, becoming faster and more accurate in their readings. Optical scanners Optical fingerprint scanners are the oldest method of capturing and comparing fingerprints. As the name suggests, this technique relies on capturing an optical image, essentially a photograph, and using algorithms to detect unique patterns on the surface, such as ridges or unique marks, by analysing the lightest and darkest Synaptics Fingerprint Sensors of the image.
Just like smartphone cameras, these sensors can have a finite resolution, and the higher the resolution, the finer details the sensor can discern about your finger, increasing the level of security. However, these sensors capture much higher Synaptics Fingerprint Sensors images than a regular camera. These scanners typically have a very high number of diodes per inch to capture these details up close.
Such a design is a bit bulky for a smartphone though, where slim form factors are important. As the technology is only capturing a 2D picture, prosthetics and even other pictures of good enough quality can be used to fool this particular design.
This is how the first smartphone with a fingerprint sensor under the display works
With increasing demand for tougher security, smartphones have unanimously adopted superior capacitive scanners, and the falling cost of technology has made capacitive alternatives viable for mid-range products too. However, with the Synaptics Fingerprint Sensors towards bezel less displays, smaller optical modules may make a comeback, as they can be embedded underneath the display glass and only require a small area footprint.
Synaptics, which develops a range of scanner for smartphones and other products, unveiled its Natural ID FS optical fingerprint sensor with this in mind.
Capacitive scanners The most commonly found type of fingerprint scanner used today is the capacitive scanner. Instead of creating a traditional image of a fingerprint, capacitive fingerprint scanners use arrays tiny capacitor circuits to collect data about a fingerprint. As capacitors can store electrical charge, connecting them up to Synaptics Fingerprint Sensors plates on the surface of the scanner allows them Synaptics Fingerprint Sensors be used to track the details of a fingerprint.
An op-amp integrator circuit is used to track these changes, which can then be recorded by an analogue-to-digital converter.
Synaptics Unveils Clear ID In-Display Fingerprint Sensor for , Smartphones
The theory and architecture behind a capacitive fingerprint scanning chip. Slideshare Once captured, this digital data can be analysed Synaptics Fingerprint Sensors look for distinctive and unique fingerprint attributes, which can be saved for a comparison at a later date.
What is particularly smart about this design is that it is much tougher to fool than an optical scanner. The only real security risks Synaptics Fingerprint Sensors from either hardware or software hacking.
- This is how the first smartphone with a fingerprint sensor under the display works – BGR
- How fingerprint scanners work: optical, capacitive, and ultrasonic variants explained
- Synaptics Unveils Clear ID In-Display Fingerprint Sensor for 18:9, 20:9 Smartphones
- Optical scanners
Synaptics Fingerprint Sensors a large enough array of these capacitors, typically hundreds if not Synaptics Fingerprint Sensors in a single scanner, allows for a highly detailed image of the ridges and valleys of a fingerprint to be created from nothing more than electrical signals. Just like the optical scanner, more capacitors results in a higher resolution scanner, increasing the level of security, up to a certain point.
Due to the number larger number of components in the detection circuit, capacitive scanners can be a little pricey. As many consumers complained at the time, this method was very finicky and often required several attempts to Synaptics Fingerprint Sensors the result correctly. Fortunately, these days, the simple press and hold design is far more common. Looking forward, Synaptics has also unveiled its latest FS capacitive scanner that supports new UI features.
These include soft button support to act as navigation keys, force sensing capabilities, and swipe gesture support. In future, many more devices may Synaptics Fingerprint Sensors a wider variety of swipe and navigation features using their fingerprint scanners.