Flexible Detection Device with Isolated Peripheral Circuits
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Solution Overview
Problem
Existing detection devices with light sensors are prone to damage when the detection region is deformed, as the received light signal readout circuit and light receiving sensor operation circuit are vulnerable to curvature or bending, limiting the device's deformability.
Innovation Solution
A detection device with a flexible substrate and a peripheral circuit located between the detection region and a terminal, featuring a drive circuit, selection circuit, and reset circuit, which allows the detection region to be deformed without affecting the peripheral circuits, using a flexible printed circuit (FPC) and a layered structure with insulated signal and scanning lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the detection region is made deformable to improve flexibility, then the flexibility and adaptability of the device is improved, but the peripheral circuits (received light signal readout circuit and light receiving sensor operation circuit) become vulnerable to damage from curvature or bending
Solution Approach 1:
The device is divided into distinct functional regions: a flexible detection region that can be deformed and a rigid protection region that houses the peripheral circuits. This segmentation allows the detection region to be deformable while the protection region maintains circuit integrity by isolating sensitive electronics from mechanical stress.
Solution Approach 2:
A protection region acts as an intermediary structure between the flexible detection region and the external environment. This protection region provides mechanical support and protection to the peripheral circuits, absorbing or distributing the stress from deformation while preventing direct damage to the circuits.
2Device complexity
If the peripheral circuits are provided along the sides of the detection region to simplify layout, then the device complexity is reduced, but the circuits become exposed to damage when the detection region is curved or bent
Solution Approach 1:
The device structure is segmented into a detection region and a protection region. The peripheral circuits are relocated to the protection region, separating them from the detection region's deformation zone. This maintains layout simplicity while protecting circuits from curvature-induced damage.
Solution Approach 2:
The vulnerable peripheral circuits are extracted from the detection region and placed into the protection region. This extraction removes the circuits from the harmful deformation environment while maintaining their functional connection to the detection region through appropriate interconnections.
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
The device achieves enhanced deformability of the detection region while maintaining the functionality of the peripheral circuits, allowing the detection region to be curved or bent without damaging the circuits, thus improving flexibility and durability.
Implementation Method 1
a flexible substrate, a plurality of light sensors provided in a detection region of the flexible substrate
Implementation Method 2
a plurality of light sensors (optical sensors) to obtain two-dimensional light-dark patterns
Data Source
AI summary
According to an aspect, a detection device, includes a flexible substrate, a plurality of sensors provided in a detection region of the flexible substrate, a terminal that is provided at one end of the flexible substrate and is capable of being coupled to an external device, and a peripheral circuit that is provided on the flexible substrate and located between the detection region and the terminal.