Flexible Display Panel Tensioning for Simplified Area Adjustment
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Solution Overview
Problem
Flexible display panels in rollable devices require complex structures to manage the winding and unwinding of the display area, complicating the overall design.
Innovation Solution
A display device with a first housing, a second housing, a flexible display panel, and a tension strip, utilizing a support part, push rod, and pulley system to adjust the display area by extending or retracting the second housing relative to the first, with the tension strip ensuring the panel remains flat during expansion and contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the flexible display panel is wound in a spiral shape and fixed inside the reel, then the display area can be changed, but the overall structure becomes complicated
Solution Approach 1:
The patent extracts the winding function from a complex reel structure and implements it through a simplified tension strip mechanism. The tension strip is pulled from a reel but the reel itself is simplified to just a mounting structure, while the actual display area adjustment is achieved by pulling and releasing the tension strip rather than winding and unwinding a spiral panel.
Solution Approach 2:
Instead of winding the display panel in a spiral shape to change display area, the patent inverts the approach by using a linear tension strip that is pulled taut to expand the display area and released to contract it. The reel is used only to store the tension strip, not to wind the display panel itself.
2Adaptability or versatility
If the second housing is made movable to adjust display area, then the display functionality is improved, but the structural complexity increases
Solution Approach 1:
The patent merges the reel and pulley into a single integrated assembly that forms part of the second housing. The reel serves as both the mounting structure and the tension strip storage, while the pulley is integrated into the same housing structure, reducing the number of separate components and simplifying the overall design.
Solution Approach 2:
The second housing serves multiple functions: it provides structural support, houses the reel and pulley mechanisms, guides the tension strip movement, and acts as one of the display boundaries. This multi-functionality reduces the need for additional separate components.
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 allows for simple and effective adjustment of the display area by keeping the flexible display panel flat, maintaining normal display functionality while simplifying the structural complexity.
Implementation Method 1
the pulley is located on the other end of the push rod
Implementation Method 2
the plurality of magnetic rings are sleeved outside the roller... a surface of the sliding plate closer to the flexible display panel is provided with a plurality of magnetic sheets
Data Source
AI summary
A display device includes a first housing, a second housing, a flexible display panel, and a tension strip; one side of the first housing has an opening; and the second housing is partially accommodated in the opening. The second housing includes a support part, a push rod and a pulley, one end of the push rod is connected with the support part, and the pulley is located on the other end of the push rod; one end of the flexible display panel is located on a first face of the second housing, and is located on one side of the first housing and connected with the first housing, and the other end rounds the support part and extends to a second face of the second housing; the tension strip is located in the first housing.