One such known method is called display fingerprint which is also referred to as in-display fingerprint. The method establishes the breakthrough where the sensors are placed under the screen and the user re-enacts the specific movement using their fingers as an alternative verification medium.

Fingerprint inside the screen is valued by consumers for its ability to create a seamless design, smooth experience, and usage of biometric security. With time, tech improvements, space-saving, and market-driven phone manufacturers adopted the triple-glass sandwich construction which gives a distinct advantage. Also, we want to shed light on the topics ” What is a display fingerprint” and “Application of Lumineq display technology”.

How does display fingerprint work

Analyze fingerprint tech, also known as in-display fingerprint sensing, is a method of integrating the fingerprint sensor below the display of a gadget, such as a phone. This functionality gives end users the ability to verify their identity by placing their fingertips on the appropriate spot on the display where the fingerprint sensor lies. Here’s a step-by-step explanation of “how does display fingerprint work”:

1. Sensor Integration
   • The fingerprint sensor is built right into the display; it is usually positioned beneath the screen. There are various options in terms of technology; there can be usage of optical or ultrasonic.
2. Optical In-Display Fingerprint Sensors
   • The optical system for the display fingerprint sensor is a device that emits light to form an image of the fingerprint. The sensor has a glass screen through which light passes and the light reflects off the ridges and valleys of the fingerprint.
   • A camera or photodiodes below the screen capture the reflected ray and creates a digital picture of the fingerprint pattern.
   • The algorithms next take this captured image and proceed to identify the specific features, minutiae points, and patterns that constitute a unique fingerprint.
   • The encrypted image of the fingerprint is then matched with the stored fingerprint data for biometric authentication.
3. Ultrasonic In-Display Fingerprint Sensors
   • In the ultrasonic type of fingerprint sensor, the display scans the fingerprint by creating a three-dimensional image of the finger’s contour using ultrasonic waves. By this method, ultrasonic pulses get transmitted through the display, and unique patterns of the comparable features of the fingerprint are collected.
   • The sensor outlines the time on ultrasonic waves to be sent and received after interacting with the fingerprint, all of this creates a highly detailed and accurate 3D map.
   • This 3D map is then fed into algorithms that extract unique features among others. The result is compared to the stored fingerprint data, and the biometric system authenticates the person if there is a match.
4. Authentication
   • Even if the input user data is verified by the comparison between the processed fingerprint data and the stored data, access is granted and the user is authenticated. Otherwise, access is denied.

The display fingerprint tech enables a unified and convenient interaction without involving extra, external, sensors present beyond the device’s surface platform. This particular feature makes biometric authentication easier and more secure, leading in turn to a better user experience in smartphones and other devices that have the feature. The machinery in the production line may vary from manufacturer to manufacturer, but its technical principles are analogous.

Advantages and Disadvantages of In-Display Fingerprint

Advantages of In-Screen Fingerprint Technology:

1. Aesthetics: Integration of the under-screen technology ensures that the device remains elegant and without any clutter since there is no visible physical sensor thus improving its usability.
2. User Experience: It is a simple and natural option that people will appreciate to open the device or conduct payments just by touching a certain region of the screen with their finger.
3. Space Efficiency: On-screen fingerprint sensors free up that valuable bit of the phone’s exterior, which adds up to inches of screen real estate coupled with effectively smaller bezels.
4. Security: Under the screen fingerprint sensors, when advanced technologies such as ultrasound or optical beautification are used, attempt to give a secure and effective biometric identification method.
5. Innovation: The in-screen fingerprint technology signals the sort of innovation that plays an integral role in the appearance and status of the device in terms of market competition.

Disadvantages of In-Screen Fingerprint Technology:

1. Cost: Integration of the on-screen fingerprint technology involves higher expenditure as compared to traditional fingerprint sensors, which may impair the cost of the handset in the long run.
2. Speed: Previously, some of the under-the-screen fingerprint sensors were attacked as pushing input/output (I/O) operations to the CPU instead of the dedicated security processor due to their slower execution speed compared to traditional fingerprint sensors. Nonetheless, the latest versions have both increased the speed and reflexes or responses.
3. Accuracy: Despite all the improvements that have been made, as users, one of the things we can stumble upon is occasion inaccuracies in fingerprint reading, but I can tell you that it rarely happens with recent technologies.
4. Dependency on Display Type: On-display fingerprint sensors could have quite a different behavior considering the display technology used (for example, OLED vs LCD), there could be the possibility of not being compatible with several screen types.
5. Durability: This durability of in-display fingerprint sensors may be disadvantageous over and over again, especially in the long run, as compared with old capacitive sensors.
6. Power Consumption: Not only can inset fingerprint sensors in some cases reduce energy consumption, but in this situation, it may also lead to a slightly higher power consumption when compared to the standard sensors.

Lumineq Display Technology

Lumineq is a trademark and a part of Beneq Oy, a Finnish company with core activities concentrating on thin film electroluminescent (TFEL) displays. The Lumineq technology has a reputation for being tough and transparent and is therefore appropriate to operate in different harsh and demanding conditions. Here are key aspects of Lumineq display technology:

1. Thin Film Electroluminescent (TFEL) Displays

Lumineq is an innovator in the application of TFEL display technology. In the TFEL displays, a thin layer of electroluminescent material that emits light in response to an applied electric field is used. Consequently, the screens end up having a high contrast, wide viewing angles, and a fast response time.

2. Ruggedness

Lumineq ships TFEL displays that are specifically meant to possess high resistance and endurance. They could endure extreme conditions, including high temperatures, vibrations, and harsh environments. This ruggedness enables the use of these sensors in sectors such as automotive, aviation, military, and an industrial environment.

3. Applications

Lumineq displays can be found across multiple industries e.g. automotive displays, avionics, military equipment, industrial control panels, and medical devices among others. The technology’s capacity to perform well in an extremely challenging environment makes it a good option for use in a place where traditional displays would fail.

4. Transparent Display Technology

Transparency is the core of Lumineq’s technology. Transparent screens let users see through the screen, so they may use them for different purposes: to realize an augmented reality, and to display information without interrupting the perception of the surrounding environment. This technology is versatile and applicable not only for car head-up displays but also for smart glasses.

5. Beneq Corporation:

Lumineq works as a division of Beneq Corporation, which is the aforementioned parent company. Beneq develops thin film coatings applied to different sectors other than display technology, such as protective coatings on diverse materials and surfaces.

It’s important to note that the information provided here and there may have been developments or changes in Lumineq’s technology or product offerings since then. In my point of view, this technique will make this world more futuristic and break all the potential of human technology.

Drop your thoughts below regarding ” How does Display Fingerprint work | Lumineq Display Technology.

Source: https://en.wikipedia.org/wiki/Fingerprint
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