Fingerprint Sensor Integrated Into Electronic Display
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Solution Overview
Problem
The integration of fingerprint sensing technology into electronic devices is hindered by hardware incompatibility and the need for significant modifications to accommodate fingerprint sensors, which is impractical for devices requiring minimal size and cost, limiting the adoption of fingerprint-based authentication in applications like email and online banking.
Innovation Solution
A fingerprint sensor is integrated into an electronic device display, positioned within 1 mm of the uppermost surface, with a controller underneath the display, allowing for a compact and cost-effective implementation by using a conductive layer between a cover lens and a protective layer, and can be configured with a touch sensor for unified operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing fingerprint sensing technology is integrated into electronic devices, then authentication security is improved, but device complexity and manufacturing cost increase due to hardware incompatibility and required modifications
Solution Approach 1:
The patent combines the fingerprint sensor and display into a single integrated component structure, where the fingerprint sensor is positioned behind the display assembly. This merging eliminates the need for separate fingerprint sensing apparatus and reduces overall device complexity while maintaining authentication security.
Solution Approach 2:
The display assembly serves dual functions: visual display and fingerprint sensing. By making the display assembly multi-functional, the patent eliminates the need for dedicated fingerprint sensor hardware, thereby reducing device complexity and manufacturing cost while improving authentication security.
2Reliability
If existing fingerprint sensing technology is integrated into electronic devices, then authentication security is improved, but manufacturing cost increases due to significant modifications required
Solution Approach 1:
The patent merges fingerprint sensing capability into the existing display assembly structure, eliminating the need for separate fingerprint sensor components and their associated manufacturing processes. This integration significantly reduces manufacturing cost while maintaining authentication security.
Solution Approach 2:
The display assembly is designed to perform both display and fingerprint sensing functions, eliminating the need for additional dedicated fingerprint sensor manufacturing. This multi-functionality approach reduces manufacturing cost while improving authentication security.
3Reliability
If a separate fingerprint sensing apparatus is used, then fingerprint-based authentication is achieved, but device size increases and portability is reduced
Solution Approach 1:
The patent combines fingerprint sensing functionality with the existing display assembly, eliminating the need for separate fingerprint sensing apparatus. This integration reduces device size and weight while maintaining authentication capability.
Solution Approach 2:
The display assembly serves dual purposes as both display and fingerprint sensor, eliminating the need for additional dedicated fingerprint sensing components. This reduces device size and improves portability while maintaining authentication capability.
Data Source
AI summary
A fingerprint sensor which includes a conductive layer which is incorporatable within an electronic display is disclosed. The fingerprint sensor also includes a controller coupled to the conductive layer to capture a fingerprint image and can further be adapted to control the display.