Fingerprint Recognition Area Isolation for Touch Response
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Solution Overview
Problem
FOD (Fingerprint on Display) technology faces issues with unintended responses due to false triggering of interactive controls when users perform touch operations in the fingerprint recognition area, leading to incorrect authentication and operational disruptions.
Innovation Solution
A touch response method that determines the fingerprint recognition area on a touch screen and displays an identity authentication interface without interactive controls in that area, ensuring that touch operations within the recognition area are solely used for fingerprint authentication, preventing false triggers of adjacent controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If interactive controls are displayed in the fingerprint recognition area, then the interface functionality is improved, but false triggering occurs when users perform touch operations
Solution Approach 1:
The touch screen is divided into distinct functional areas: a fingerprint recognition area and an interactive control area. The identity authentication interface is segmented to display interactive controls only in non-fingerprint areas, preventing overlap and false triggering while maintaining both authentication and control functionalities.
Solution Approach 2:
Different areas of the interface are assigned different qualities and functions. The fingerprint recognition area is designated solely for biometric input with no interactive controls, while other areas accommodate standard interface elements. This local differentiation ensures that touch operations in the fingerprint area are exclusively treated as authentication gestures.
2Reliability
If the fingerprint recognition area is isolated from interactive controls, then false triggering is prevented, but the interface design complexity increases
Solution Approach 1:
The system performs preliminary detection to identify whether a touch operation occurs within the fingerprint recognition area before processing the touch event. This preliminary spatial check prevents false triggering of interactive controls and ensures that touches in the fingerprint area are routed to the authentication module exclusively.
Solution Approach 2:
An intermediary processing layer is introduced between the touch screen and the interface elements. This layer detects touch positions, determines whether they fall within the fingerprint recognition area, and routes the touch events accordingly - either to fingerprint authentication or to interactive control operations, preventing direct false triggering.
Data Source
AI summary
A touch response method includes recognizing a request for identity authentication in a process of operating an application; determining a fingerprint recognition area of the touch screen when identity authentication is required in the process of operating an application; displaying an identity authentication interface of the application according to the fingerprint recognition area, wherein the identity authentication interface does not display any interactive control in the fingerprint recognition area of the touch screen; receiving an input of a fingerprint from a user in the fingerprint recognition area; and completing the identity authentication according to the fingerprint corresponding to the touch operation when a touch operation on the fingerprint recognition area is detected one or more interactive controls.