Biometric Sensor Pattern Integrated in Display Controller
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Solution Overview
Problem
Existing electronic devices with integrated biometric sensors face challenges such as increased complexity and space requirements, which can hinder efficient implementation and design.
Innovation Solution
A display unit configuration that integrates a biometric sensor pattern within a controller communicatively attached to the display panel, allowing for reduced space usage and simplified implementation by routing signals through conductive adhesive layers and bonding points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate biometric sensor is used, then biometric sensing function is achieved, but device complexity and space requirements increase
Solution Approach 1:
The biometric sensor is integrated directly into the controller body, merging two previously separate components (biometric sensor and controller) into a single unified structure. This eliminates the need for separate mounting and reduces implementation complexity while maintaining biometric sensing functionality.
Solution Approach 2:
The controller is designed to perform multiple functions: it serves as both the control unit for the display panel and the housing/substrate for the biometric sensor. This multi-functional design reduces the overall component count and simplifies device architecture.
2Reliability
If a separate biometric sensor is used, then biometric sensing function is achieved, but space requirements increase
Solution Approach 1:
By integrating the biometric sensor into the controller body, the patent eliminates the need for separate space allocation for a standalone sensor. The sensor utilizes the controller's existing physical footprint, thereby reducing overall device space requirements.
Solution Approach 2:
The biometric sensor is nested within the controller structure, with the sensor substrate integrated into the controller body. This nested arrangement allows the sensor to occupy space that would otherwise be unused or require separate allocation, reducing the total device area.
3Area of stationary object
If biometric sensor is integrated in controller, then space requirements are reduced, but manufacturing complexity may increase
Solution Approach 1:
The integration process is divided into distinct stages: forming the sensor substrate, creating the biometric sensor pattern, and attaching the controller to the display panel. This segmented approach to manufacturing makes the complex integration process more manageable and scalable.
Solution Approach 2:
A conductive adhesive layer serves as an intermediary between the controller and the display panel, providing both mechanical bonding and electrical connection. This intermediary simplifies the manufacturing process by combining attachment and wiring functions into a single material layer.
Data Source
AI summary
In one example, a display unit comprises a display panel that is configured to display digital images. The display unit further comprises an at least partially transparent protective layer that is arranged above the display panel. The display unit further comprises a controller that is communicatively attached onto an upper surface of the display panel. A biometric sensor pattern is integrated in the controller, and the controller is configured to control the biometric sensor pattern.