Fingerprint Detection Element Placement in Touch Screen Cover
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Solution Overview
Problem
Conventional mobile terminals with fingerprint identification functions require a detection opening on the screen cover, which compromises the strength of the screen cover and may lead to vulnerabilities in security and durability.
Innovation Solution
A terminal device design that integrates a fingerprint detection element between the screen cover and the display component, along with touch signal detection elements, allows for fingerprint identification without a dedicated opening on the screen cover, enhancing the screen's strength and security by using materials like nano silver, carbon nanotubes, or graphene for the detection elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a detection opening is provided on the screen cover for fingerprint detection, then fingerprint identification function is enabled, but the strength and durability of the screen cover is compromised
Solution Approach 1:
The patent merges the fingerprint detection element with the touch signal detection elements within the same screen structure. The fingerprint detection element is positioned in a free area among the touch signal detection elements between the screen cover and display component, allowing both touch detection and fingerprint identification to share the same detection layer without requiring separate openings or components.
Solution Approach 2:
The screen structure is designed to serve multiple functions: it provides touch signal detection across the screen area and simultaneously enables fingerprint identification through the integrated fingerprint detection element. This multi-functional design eliminates the need for separate detection openings while maintaining both capabilities.
2Adaptability or versatility
If a detection opening is provided on the screen cover, then fingerprint detection is enabled, but security and structural integrity are reduced
Solution Approach 1:
The fingerprint detection element is combined with the existing touch signal detection elements within the screen assembly, eliminating the need for separate detection openings. This integration maintains the continuous structure of the screen cover while enabling fingerprint detection through the embedded element positioned among the touch detection elements.
3Strength
If fingerprint detection element is integrated between screen cover and display component, then screen strength is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple detection functions (touch signal detection and fingerprint detection) into a single integrated structure. The fingerprint detection element is positioned within the existing space between the screen cover and display component, sharing the same detection layer with touch signal detection elements, thereby avoiding additional complex assemblies while maintaining screen integrity.
Data Source
AI summary
A terminal device for fingerprint identification may include a control component and a screen. The screen may include a screen cover, a display component, a fingerprint detection element, and a plurality of touch signal detection elements. The fingerprint detection element and the plurality of touch signal detection elements may be between the screen cover and a top surface of the display component; the fingerprint detection element may be in a free area among different touch signal detection elements; and the control component may be electrically connected with the fingerprint detection element and configured to acquire detection signal of the fingerprint detection element, generate fingerprint data based on the detection signal of the fingerprint detection element, compare the fingerprint data with reference fingerprint data stored in advance, and execute a preset control instruction if the fingerprint data matches the reference fingerprint data.