Under-display Fingerprint Sensor Visual Feedback Mechanism
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Solution Overview
Problem
Electronic devices face security vulnerabilities due to their multi-functional nature, which can lead to exposure and leakage of private user information, despite implementing security functions like fingerprint recognition authentication.
Innovation Solution
Incorporating a display fingerprint recognition sensor and a processor that detects user input, executes fingerprint recognition, and provides interactive graphical feedback on the display to guide and confirm fingerprint input, while excluding the touched region from the graphical effect to enhance user convenience and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fingerprint recognition sensor is embedded in the display to provide secure authentication, then security is improved, but the user interface becomes less intuitive without visual feedback
Solution Approach 1:
The patent applies feedback by displaying visual indicators on the screen that show the system has detected a finger and is performing fingerprint recognition. This visual feedback loop confirms to the user that their input is being processed, making the interface more intuitive while maintaining the security function of the embedded sensor.
Solution Approach 2:
The patent utilizes color changes in the displayed graphical effects to indicate different states of fingerprint recognition. By changing colors or visual properties on the display, the system provides intuitive feedback to users about the authentication status without compromising the security of the embedded sensor.
2Ease of operation
If graphical effects are displayed across the entire screen during fingerprint recognition, then user feedback is enhanced, but the touched region becomes obscured
Solution Approach 1:
The patent applies local quality by restricting graphical effects to specific regions of the display that do not overlap with the touched area. This ensures that visual feedback is provided in visible regions while the touched region remains unobscured, allowing users to see both their input location and the system's response.
Solution Approach 2:
The patent segments the display area into different functional zones: the touched region where the finger is placed, and other regions where graphical effects are displayed. This segmentation allows both the touch input and visual feedback to coexist without interfering with each other's visibility.
Data Source
AI summary
An electronic device and method are disclosed. The electronic device includes a display, a touch sensor, a fingerprint recognition sensor disposed under the display, and a processor. The processor implements the method, including: detecting a user input to a fingerprint recognition region on the display that corresponds to a location of the fingerprint recognition sensor, using the touch sensor, executing fingerprint recognition on the user input using the fingerprint recognition sensor, and displaying a graphical effect on the display related to the user input while executing the fingerprint recognition.