Windable Display Module With Variable Interlayer Force
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Solution Overview
Problem
The challenge of reducing damage to windable display modules during the winding or unwinding process has become a crucial issue as they evolve from being foldable to windable.
Innovation Solution
A windable display module design featuring multiple film layers with connecting layer groups that generate variable connecting forces between adjacent layers, allowing for reduced tensile stress during winding or unwinding, and increased attachment during display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display module uses strong connecting force between film layers, then the display performance is improved, but the risk of damage during winding or unwinding increases
Solution Approach 1:
The connecting layer group dynamically adjusts the connecting force between film layers based on operational state. During winding or unwinding, the connecting force is reduced to allow relative movement and reduce damage risk. During display, the connecting force is increased to ensure close attachment and optimal display performance. This dynamic adjustment resolves the contradiction between strong connection for performance and weak connection for damage protection.
Solution Approach 2:
The patent changes the physical state or properties of the connecting layer group to modulate connecting force. By altering parameters such as the mechanical properties of the connecting layer or its engagement state with film layers, the system transitions between high connecting force (display mode) and low connecting force (winding/unwinding mode), thereby resolving the contradiction between display performance and damage risk.
2Adaptability or versatility
If the display module is designed for winding capability, then the versatility is improved, but the structural complexity increases
Solution Approach 1:
The connecting layer group is designed as a separate, modular component between film layers, enabling independent control of connecting force. This segmentation allows the winding mechanism to operate without complicating the overall display structure, as the connecting layer group acts as a dedicated interface that simplifies the integration of winding capability into the display module.
Data Source
AI summary
A windable display module and a display device. The display module includes a plurality of film layers stacked together and at least one connecting layer group arranged between the plurality of film layers. In a stacking direction, the at least one connecting layer group is in contact with its adjacent film layer, so that a variable connecting force is generated between the film layers that are adjacent to the at least one connecting layer group. During a winding process or an unwinding process of the display module, a first connecting force is generated between the film layers that are adjacent to the at least one connecting layer group. During a displaying process of the display module, a second connecting force is generated between at least parts of the film layers that are in a displaying region. The first connecting force is less than the second connecting force.