Flexible Display Device with Discoloration Sensor Layer for Portable Health Monitoring
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Solution Overview
Problem
Current display devices lack the capability to effectively detect and diagnose various illnesses by sensing target materials in a user's emissions, such as gases or liquids, in a portable and flexible manner.
Innovation Solution
A display device with a discoloration sensor layer, including M13 bacteriophage, integrated into a flexible display panel that changes color upon exposure to target materials, allowing for real-time diagnosis by detecting changes in reflected light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display device integrates a discoloration sensor layer with M13 bacteriophage to detect target materials, then the diagnostic capability and target material detection function are improved, but the device complexity and structural complexity increase
Solution Approach 1:
The display device integrates multiple functions into a single system: the display panel serves both as a visual output device and as a platform for the discoloration sensor layer, which simultaneously acts as both the sensing element and the diagnostic indicator. The controller unit consolidates signal processing and diagnostic decision-making, enabling the device to perform both display and medical diagnosis functions through a unified structure.
Solution Approach 2:
The patent combines the discoloration sensor layer directly with the display panel structure, merging the sensing function with the display function. The sensor layer is integrated into the display panel's layered structure, and the controller that processes sensor signals is combined with the display control system, reducing the need for separate diagnostic hardware components.
2Weight of moving object
If the discoloration sensor layer is integrated into the display panel structure, then the portability and flexibility are improved, but the manufacturing complexity increases
Solution Approach 1:
The display panel is divided into distinct functional layers including the discoloration sensor layer, each with specific roles. The sensor layer is positioned between the lower substrate and the lower cover, allowing for modular manufacturing where the sensor layer can be independently prepared and then integrated with the display panel components through sequential assembly steps.
Solution Approach 2:
The display panel employs a thin-film structure with flexible substrates and covers that allow the entire assembly to be lightweight and portable. The discoloration sensor layer itself is a thin film that can be deposited onto flexible substrates, maintaining flexibility while enabling integration of the diagnostic function without adding significant weight or rigidity.
3Measurement precision
If the discoloration sensor layer is exposed to target materials through through portions, then the detection sensitivity is improved, but the structural integrity may be compromised
Solution Approach 1:
The display panel structure implements local quality by creating specific through portions only in regions where target material exposure is required for sensor function. These through portions are strategically positioned to allow target material access to the discoloration sensor layer while maintaining the structural integrity of the overall panel. The lower cover includes openings that are localized to sensor regions rather than compromising the entire structure.
Solution Approach 2:
The lower cover acts as an intermediary structure that selectively allows target material to reach the discoloration sensor layer through controlled openings. This intermediary component protects the sensor layer from direct exposure while enabling necessary gas or liquid contact through designated pathways, thus maintaining both detection sensitivity and structural protection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables portable and flexible detection of target materials, facilitating real-time diagnosis of illnesses through color changes, enhancing user health monitoring capabilities.
Implementation Method 1
a discoloration sensor layer overlapping the sensor area, where the discoloration sensor layer is disposed on one of the upper surface of the display panel and the lower surface of the display panel, and discolored when exposed to a target material
Implementation Method 2
the discoloration sensor layer may include M13 bacteriophage
Implementation Method 3
the display device may further include a light detection layer overlapping the sensor area, where the light detection layer may include a photodiode and a color filter disposed on the photodiode
Data Source
AI summary
A display device includes: a display panel including a sensor area and a display area, where the display panel includes an upper surface and a lower surface opposite to the upper surface; and a discoloration sensor layer overlapping the sensor area, where discoloration sensor layer is disposed on one of the upper surface of the display panel and the lower surface of the display panel, and discolored when exposed to a target material. A first through portion is defined through the display panel from the upper surface to the lower surface of the display panel, and the discoloration sensor layer overlaps the first through portion.