Flexible Display Module With Island Structures And Bending Connectors
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Solution Overview
Problem
Existing flexible display modules have a low stretching degree and poor stretching effect, which limits their ability to adapt to diverse occasions and complex environments, such as vehicle and wearable displays that require more complex structures and curved surfaces.
Innovation Solution
A flexible display module design featuring island-shaped structures with pixel units connected by multiple bending structures, each comprising at least three bending portions with different directions, allowing for stretching in three spatial directions while maintaining consistent resistance within a preset range, and incorporating a buffer layer and flexible substrates to enhance durability and deformability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display module uses a conventional flat structure, then the manufacturing is simple, but the stretching degree is low and the stretching effect is poor
Solution Approach 1:
The display module is segmented into multiple island-shaped structures (pixel units) that are separated from each other, with bending structures connecting them. This segmentation allows each island to remain stationary while the connecting bending structures accommodate stretching, enabling the display to expand without compromising the integrity of the pixel units themselves.
Solution Approach 2:
The bending structures connecting the island-shaped structures incorporate curved geometries with specific bending radii. These curved connections allow the display module to stretch by deforming the bending portions while maintaining electrical connectivity, enabling significant stretching degree without breaking the rigid pixel units.
2Adaptability or versatility
If the display module is stretched to improve adaptability, then the display quality may be affected, but the stretching capability is improved
Solution Approach 1:
Different parts of the display module have different properties: the island-shaped pixel units maintain rigid, flat structures to ensure high display quality, while the connecting bending structures are designed to be flexible and deformable to accommodate stretching. This local differentiation ensures that stretching occurs in non-critical areas while critical display areas maintain their quality.
Solution Approach 2:
The bending structures serve as intermediary elements between the rigid island-shaped pixel units. These intermediaries absorb the mechanical stress of stretching through their deformable geometry, preventing direct transmission of stress to the pixel units and thereby maintaining display quality while enabling stretching capability.
3Adaptability or versatility
If multiple bending structures are used to connect island-shaped structures, then the stretching in multiple directions is enabled, but the device complexity increases
Solution Approach 1:
The bending structures are designed to perform multiple functions: they provide electrical connectivity between island-shaped structures, accommodate stretching in multiple directions through their curved geometry, and maintain mechanical stability. This multi-functionality reduces the need for separate components for each function, thereby limiting the increase in device complexity despite enabling multi-directional stretching.
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 enables effective stretching and deformation of the display module in multiple directions without affecting display quality, allowing for flexible and retractable displays suitable for various applications, including wearable and vehicle displays, with consistent resistance and brightness.
Implementation Method 1
a first bending structure of the plurality of bending structures comprises at least three bending portions, the first bending structure comprises at least two bending directions
Data Source
AI summary
The present application provides a flexible display module. A display area of the flexible display module comprises a plurality of island-shaped structures separated from each other. A bending structure including at least three bending portions is provided to connect the island-shaped structures, which effectively realizes stretching of the flexible display module in three directions of space. At the same time, since the bending structure is connected to one end of one side of the adjacent island-shaped structures, it increases a bending length of the bending structure and a bending space of the flexible display module. The present application also provides a display device comprising the flexible display module.