Roller-Based Winding Mechanism for Flexible Display Module Cover
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Solution Overview
Problem
Existing display devices lack a mechanism to efficiently wind and unwind display panels and module covers without support structures, limiting their compactness and usability.
Innovation Solution
A display device design featuring a housing with rollers and elastic pieces that allow the display panel and module cover to be wound and unwound, using a motor assembly and gear system to facilitate movement, enabling the module cover to contact the rear surface of the display panel without additional support structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If display panel and module cover are wound around rollers without support structures, then compactness and portability are improved, but structural stability and reliability during winding/unwinding operations deteriorate
Solution Approach 1:
The patent changes the physical state and mechanical properties of the module cover by introducing elastic pieces that can deform and flex. The elastic pieces allow the module cover to bend and conform to the curved surface of the rollers during winding, while maintaining structural integrity. This parameter change in flexibility enables the module cover to be wound without rigid support structures while preserving reliability.
Solution Approach 2:
The patent introduces dynamic elements (elastic pieces) that allow the module cover to adapt its shape and rigidity during the winding and unwinding process. The elastic pieces enable the module cover to be flexible when wound around rollers and can return to its original shape when unwound, providing dynamic structural adjustment without requiring external support structures.
2Strength
If elastic pieces are added to strengthen the display unit, then structural strength is improved, but device complexity increases
Solution Approach 1:
The patent merges the strengthening function with the existing module cover structure by integrating elastic pieces directly into the module cover. The elastic pieces are combined with the module cover in a unified structure, eliminating the need for separate support structures or additional components. This merging approach provides structural strength while avoiding increased device complexity.
Solution Approach 2:
The elastic pieces serve multiple functions simultaneously: they strengthen the module cover, enable it to be wound around rollers, and provide the necessary flexibility for compact storage. The module cover with integrated elastic pieces is self-sufficient and does not require external support structures, reducing overall device complexity while maintaining strength.
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
This design allows for a compact and user-friendly display device that can be easily deployed and stowed, enhancing its portability and usability by eliminating the need for external support structures during winding and unwinding operations.
Implementation Method 1
an elastic piece disposed on the module cover in a minor axis direction of the display unit and configured to strengthen the display unit in the second state
Data Source
AI summary
A display device that includes a housing with at least one Printed Circuit Board (PCB) and a plurality of rollers disposed in the housing. The display device also includes a display unit which, in turn, includes a display panel and a module cover. The display device further includes a driving unit that is connected to the display panel and the module cover. The driving unit moves the display panel and the module cover between a first state and a second state. In the first state, the panel and module cover are wound around at least one of the plurality of rollers, and in the second state they are unwound from the at least one of the plurality of rollers and exposed by being drawn out from the housing.