Fingerprint Sensor Under Display for Gesture Authentication
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Solution Overview
Problem
Existing electronic apparatuses lack an efficient method to securely execute functions based on fingerprint authentication, often resulting in malfunctions and reduced operability due to incorrect authentication or failure to detect finger movements towards the fingerprint sensor.
Innovation Solution
An electronic apparatus comprising a display, fingerprint sensor, and processor that detects finger movements from icons towards the fingerprint sensor, executing functions only when the read fingerprint information matches previously registered information, thereby enhancing security and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fingerprint authentication is implemented to execute functions, then security is improved, but device complexity increases
Solution Approach 1:
The patent combines the fingerprint sensor, touch sensor, and display into an integrated structure where the fingerprint sensor is positioned beneath the display. This merging reduces device complexity by consolidating multiple components into a unified authentication system while maintaining security functionality.
Solution Approach 2:
The display surface serves multiple functions: it displays information, detects touch input, and enables fingerprint authentication. This multi-functionality reduces the need for separate components, thereby decreasing device complexity while improving security through integrated fingerprint verification.
2Measurement precision
If finger movement detection is added to improve authentication accuracy, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The touch sensor and fingerprint sensor are integrated into a single underlying structure beneath the display. The same sensor layers detect both finger movement and fingerprint patterns, eliminating the need for separate detection components and reducing device complexity while improving authentication precision.
Solution Approach 2:
The sensor system performs multiple detection functions simultaneously: it detects finger presence, tracks finger movement trajectories, and captures fingerprint patterns. This multi-functional sensor design improves measurement precision without adding separate detection devices, thereby avoiding increased complexity.
3Reliability
If multiple sensor integrations are used to enhance authentication, then reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The fingerprint sensor and touch sensor are merged into a single integrated component beneath the display. This consolidation allows users to interact with the device through natural touch gestures without needing to understand or adjust multiple separate sensor systems, maintaining ease of operation while improving authentication reliability.
Solution Approach 2:
The system automatically detects finger movement and triggers fingerprint authentication without requiring user initiation. When a finger moves across the display toward the fingerprint sensor, the system autonomously activates the authentication process, reducing the operational steps the user must take while ensuring reliable authentication.
Data Source
AI summary
An electronic apparatus comprises a display, a fingerprint sensor, a touch sensor, and at least one processor. The display displays an icon. The fingerprint sensor reads fingerprint information. The touch sensor detects a movement of a finger. The at least one processor executes, when the movement of the finger from the icon toward the fingerprint sensor is detected and fingerprint information is read by the fingerprint sensor, a function of the icon since the fingerprint information which has been read matches registered fingerprint information which has been previously registered.