Flexible Display Panel Frame for Long-Term Dynamic Bending
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Solution Overview
Problem
Flexible organic light-emitting diode display panels face issues with complex frame structures that cannot ensure long-term durability under dynamic bending, leading to potential product failure.
Innovation Solution
A display panel frame design featuring a bendable panel with a polymer layer having varying compressive and tensile properties, auxiliary ribs, and a limiting frame, along with a buffer member and elastic components to adapt to dynamic bending, ensuring the panel's reliability over time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple gears and hinges are used to achieve flexible bending, then the display panel can be bent, but the structural design becomes complicated and long-term durability cannot be ensured
Solution Approach 1:
The patent replaces complex mechanical components (gears and hinges) with a flexible polymer layer that has different compressive and tensile properties on its two sides. This polymer layer can bend and expand dynamically while maintaining structural integrity, achieving flexible bending capability without the complexity of traditional mechanical linkages.
Solution Approach 2:
The polymer layer is designed with asymmetric mechanical properties: the first side has higher compressive property while the second side has higher tensility. This parameter differentiation allows the layer to adapt to dynamic bending and expanding movements, enabling the frame to flex without requiring complex mechanical structures.
2Adaptability or versatility
If complex frame structures are used for bending, then flexible display is achieved, but reliability under long time bending cannot be ensured
Solution Approach 1:
The polymer layer acts as a flexible film that can dynamically bend and expand with the display panel. Its asymmetric mechanical properties (higher compressive property on one side, higher tensility on the other) allow it to accommodate repeated bending cycles without structural failure, ensuring long-term reliability.
Solution Approach 2:
The frame includes a buffer member disposed below the frame that can absorb and cushion external impacts or forces. This pre-positioned cushioning element protects the display panel and polymer layer from sudden stresses, enhancing reliability during long-term use and dynamic bending operations.
3Ease of manufacture
If simple frame structure is used, then manufacturing is easier, but the frame cannot adapt to deformation caused by dynamic bending
Solution Approach 1:
The polymer layer provides the necessary flexibility and adaptability to dynamic deformation in a simple, integrated structure. By incorporating different compressive and tensile properties in different regions of the polymer layer, the frame can adapt to bending and expanding movements without requiring complex mechanical components, maintaining ease of manufacture.
Solution Approach 2:
The frame uses a composite polymer layer with spatially varying mechanical properties. The first side has higher compressive property while the second side has higher tensility, creating a functionally graded material that can adapt to dynamic deformation. This composite approach achieves adaptability while keeping the structure relatively simple and manufacturable.
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 frame simplifies the structural design, enhances the flexible substrate's tenacity, and prevents product failure during long-term bending by effectively managing deformation through its adaptive mechanism.
Implementation Method 1
a compressive property of a first side of the polymer layer that is close to the bendable panel is higher than a compressive property of a second side of the polymer layer that is away from the bendable panel
Implementation Method 2
a tensility of the first side of the polymer layer is higher than a tensility of the second side of the polymer layer
Implementation Method 3
the bending region has a polymer layer
Implementation Method 4
an elastic belt connected to the belt roller and the limiting roller
Implementation Method 5
a buffer member disposed below the frame
Data Source
AI summary
A display panel frame is provided. The frame includes a substrate having a bendable portion and two connecting portions connected to two sides of the bendable portion; and a connecting structure including two connecting members and an elastic belt. The two connecting members are respectively mounted to the two connecting portions and disposed opposite to each other, and the elastic belt is sleeved on the two connecting members and wound around outer surfaces of the two connecting members. Thus, the structural design of the product can be simplified to ensure that it does not cause product failure after bending over a long period of time, and increase the toughness of the flexible substrate, so that it is beneficial to ensure product reliability under long time bending.