Rollable Display Elastic Sealing Gap
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Solution Overview
Problem
Conventional rollable display devices suffer from gaps between the soft display panel and the housing when the panel is retracted and extended, allowing foreign substances to enter and complicating maintenance due to grease transfer.
Innovation Solution
A rollable display device with an elastic portion, including a rubber portion and a wing portion, is integrated into the housing to cover the opening, minimizing exposure and preventing foreign substances from entering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the opening is defined wider than the soft display panel passage area to protect the panel, then the panel is protected from damage, but a gap is formed between the panel and housing allowing foreign substances to enter
Solution Approach 1:
An elastic portion is introduced as an intermediary element between the housing opening and the soft display panel. This elastic portion dynamically adjusts to fill the gap formed when the panel is retracted, preventing foreign substances from entering while allowing the panel to pass through the opening during extension and retraction operations
Solution Approach 2:
The elastic portion is designed to be dynamically deformable, changing its shape and position according to the panel's movement state. When the panel is extended, the elastic portion retracts; when the panel is retracted, the elastic portion expands to cover the opening, providing adaptive protection without compromising panel operation
2Object-affected harmful factors
If brush members are positioned adjacent to the opening to block foreign substances, then foreign substance entry is reduced, but grease from the brush transfers to other portions of the device complicating maintenance
Solution Approach 1:
The elastic portion functions as a flexible sealing element that replaces the rigid brush members. This flexible membrane blocks foreign substances from entering through the opening while preventing grease transfer to other device portions, thereby maintaining protection effectiveness while simplifying maintenance requirements
Solution Approach 2:
The elastic portion is designed as a simple, replaceable component that can be easily removed and replaced during maintenance. This design reduces maintenance complexity compared to brush members that transfer grease throughout the device, allowing quick replacement without complex disassembly or cleaning procedures
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 effectively blocks external foreign substances by minimizing the exposure of the interior housing when the soft display panel is retracted and extended, while also preventing the brush from entering the actuating member.
Implementation Method 1
an elastic portion having one end coupled to a perimeter of the opening and protruding to cover at least a portion of the opening
Data Source
Figure 1
Figure 2(a)~2(b)
Figure 3(a)~3(b)
AI summary
A rollable display device includes: a soft display panel; a main roller for winding or unwinding the soft display panel; an actuator coupled to the soft display panel to ascend and descend the soft display panel; a housing having the main roller mounted therein, wherein an opening extending in a first direction is defined in a top of the housing to retract and extend the soft display panel therethrough; and an elastic portion having one end coupled to a perimeter of the opening and protruding to cover at least a portion of the opening, wherein the elastic portion includes a rubber portion having a predetermined length along the first direction. The rollable display device may minimize exposure of an interior of the housing to prevent foreign substances from entering.