Electrophoretic Display Panel Support Structure for Pressure Stability
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Solution Overview
Problem
Conventional electrophoresis display panels suffer from deformation due to external pressure, leading to changes in electrophoresis particle distribution and discoloration, as they lack adequate support structures for the electrophoresis solution layer.
Innovation Solution
A display panel design featuring a supporting structure with varying heights, including a first supporting portion taller than a second supporting portion, and a liquid-blocking portion positioned to minimize distance to the second supporting portion, enhancing support and reducing deformation risks while maintaining effective packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a supporting structure is added to prevent deformation, then structural stability is improved, but device complexity increases
Solution Approach 1:
The supporting structure is divided into multiple supporting portions with different heights (first supporting portion, second supporting portion, third supporting portion). Each supporting portion is positioned at specific locations to provide targeted support to the electrophoresis solution layer, preventing deformation while maintaining a relatively simple overall structure.
Solution Approach 2:
Different supporting portions have different heights tailored to the specific support needs at different locations. The first supporting portion has a greater height to provide stronger support where needed, while the second and third supporting portions have smaller heights for localized support, optimizing structural stability without adding unnecessary complexity throughout the entire device.
2Reliability
If the supporting structure is positioned close to the liquid-blocking portion, then packaging effectiveness is improved, but manufacturing precision requirements increase
Solution Approach 1:
The second supporting portion is positioned close to the liquid-blocking portion with a smaller height, providing localized support exactly where the electrophoresis solution layer needs reinforcement near the packaging boundary. This targeted approach improves packaging effectiveness without requiring high precision across the entire supporting structure.
Solution Approach 2:
The supporting structure provides more support than minimally required by positioning the second supporting portion close to the liquid-blocking portion, ensuring the electrophoresis solution layer is adequately contained. This partial concentration of support near the packaging boundary enhances reliability while keeping manufacturing requirements manageable.
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 design improves display accuracy and reliability by minimizing electrophoresis particle movement and deformation, ensuring stable electrophoresis solution packaging, and reducing the complexity of assembly.
Implementation Method 1
an electrophoresis layer, arranged between the first substrate and the second substrate, comprising multiple electrophoresis particles
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a first substrate, a second substrate arranged opposite to the first substrate, an electrophoresis layer, a liquid-blocking portion and a supporting structure. The electrophoresis layer is arranged between the first substrate and the second substrate and includes multiple electrophoresis particles. The liquid-blocking portion is arranged at an edge of the first substrate and/or the second substrate. The supporting structure is arranged between the first substrate and the second substrate and includes a first supporting portion and a second supporting portion. A height of the first supporting portion is greater than that of the second supporting portion in a direction perpendicular to a plane where the first substrate is located. A minimum distance between the second supporting portion and the liquid-blocking portion is less than that between the first supporting portion and the liquid-blocking portion.