Rollable Flexible Display Housing With Tensioned Flat-Panel Extension
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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 comprising a first housing, a second housing, a flexible display panel, a tension strip, guide rails, and sliding blocks, with mechanisms for extending and retracting the second housing to adjust the display area while maintaining panel flatness using pulleys and magnetic support systems.
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 as needed, but the overall structure becomes complicated
Solution Approach 1:
The display device is divided into two separate housings: a first housing containing the flexible display panel and a second housing containing the reel mechanism. This segmentation allows the display panel and the winding mechanism to be independently managed, simplifying the overall structure while maintaining the ability to adjust the display area by controlling the extension and retraction of the panel through the guide rails and sliding blocks.
2Adaptability or versatility
If the flexible display panel is extended to increase display area, then the display area changes as needed, but the panel may experience excessive stress or damage
Solution Approach 1:
A tension strip is introduced as an intermediary element between the flexible display panel and the reel mechanism. The tension strip connects to both the panel and the reel, acting as a mediator that distributes mechanical stress evenly throughout the system. This prevents excessive stress concentration on any single part of the panel during extension and retraction operations, thereby maintaining panel integrity and reliability.
Solution Approach 2:
The flexible display panel itself is designed as a thin, flexible structure that can be extended and retracted without breaking. The panel's flexibility allows it to conform to the guide rails and sliding blocks during movement, while the tension strip provides additional structural support to prevent excessive stress or damage during the extension and retraction cycles.
3Adaptability or versatility
If the second housing stretches and retracts to adjust display area, then the display area changes, but the mechanism becomes more complex
Solution Approach 1:
The second housing is designed as a multi-functional component that performs several operations: it contains the reel mechanism for winding and unwinding the display panel, provides the pulley system for tension management, and enables the stretching and retraction motion through the guide rails and sliding blocks. By consolidating these functions into a single housing structure, the design avoids the need for separate mechanisms for each function, thereby reducing overall complexity while maintaining the ability to adjust the display area.
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
Simplifies the structure for changing the display area by allowing smooth extension and retraction of the flexible display panel, ensuring flatness and normal display functionality without excessive stress or damage.
Implementation Method 1
the first groove is provided with a ball; the guide rail is located in the clamp groove, a side wall of the guide rail is provided with a second groove extending along a length direction thereof, the first groove is opposite to the second groove, and the ball is partially located in the second groove
Implementation Method 2
the support part further includes a plurality of magnetic rings, the plurality of magnetic rings are sleeved outside the roller, one face of the flexible display panel closer to the magnetic rings is provided with a flexible support plate, and the flexible support plate is ferromagnetic
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.