3D Stretchable OLED/OPD Device with Layered Flexible Substrates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing flexible substrates with electrical elements face challenges in maintaining flexibility and preventing line damage due to bending or expansion/contraction, particularly when optical sensors with different functions are integrated in separate substrates.
Innovation Solution
A configuration of first and second flexible substrates with island and strip portions, meandering lines, and elastic members, allowing for excellent flexibility and precise sensing even under deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If measures are taken to prevent line damage by providing honeycombed openings or meandering lines, then line protection is improved, but device flexibility is inhibited
Solution Approach 1:
The substrate is divided into multiple independent flexible substrate layers, each containing electrical elements and lines. This segmentation allows each layer to independently handle mechanical stress through bending or stretching, preventing line damage while maintaining overall device flexibility. The lines are confined within their respective substrate layers rather than spanning across rigid structures.
Solution Approach 2:
The patent transitions from a two-dimensional planar substrate to a three-dimensional stacked configuration with multiple flexible substrate layers arranged in different dimensions. This dimensional change allows the device to accommodate bending and stretching in multiple directions simultaneously, enhancing flexibility while protecting lines through the layered architecture.
2Adaptability or versatility
If optical sensors and other electrical elements are placed in separate substrates, then functional integration is improved, but structural complexity increases
Solution Approach 1:
Multiple functional substrates containing different electrical elements (optical sensors, display elements, touch sensors) are merged into a single stacked assembly. The flexible substrate layers are bonded together through elastic members, creating an integrated multi-functional device where each layer contributes its specific function while the overall structure remains cohesive and manageable.
Solution Approach 2:
Each flexible substrate layer is designed with universal characteristics that allow it to serve multiple purposes: providing mechanical support, accommodating electrical elements, enabling flexibility, and facilitating bonding with adjacent layers. This multi-functionality reduces the need for specialized structural components for each function, simplifying the overall device architecture.
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 solution enables an electronic device with enhanced flexibility and stable sensing precision, maintaining the positional relationship between electrical elements despite mechanical stress.
Implementation Method 1
an electronic device includes a first flexible substrate, a second flexible substrate, and a light-blocking portion. The electronic device may have excellent flexibility and sensing precision even when deformed. In order to achieve the above-mentioned object, according to an embodiment of the present disclosure, there is provided an electronic device including a first flexible substrate and a second flexible substrate overlapping the first flexible substrate
Data Source
AI summary
According to one embodiment, an electronic device comprises first and second flexible substrates. The first flexible substrate comprises a first insulating base includes first island portions and first strip portions connecting the first island portions, first electrical elements placed on the first island portions, and first lines placed on the first strip portions. The second flexible substrate comprises a second insulating base includes second island portions and second strip portions connecting the second island portions, second electrical elements placed on the second island portions, and second lines placed on the second strip portions.