Sliding Flexible Display Panel with Stepped-Roller Support
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Solution Overview
Problem
Interference between a display panel and a set cover in flexible display devices is a challenge, particularly when the display screen is extended or reduced by folding, bending, or sliding.
Innovation Solution
A display device design featuring a display panel with active areas supported by segments and rollers, guided by a panel housing with guide rails, and auxiliary plates, which include stepped portions to minimize interference and facilitate smooth sliding motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel is made flexible to enable folding or bending, then adaptability is improved, but interference with the set cover increases
Solution Approach 1:
The support structure is divided into multiple segments that can independently move relative to each other. Each segment contains rollers that can rotate to accommodate the flexible display panel's folding or bending, preventing interference with the set cover while maintaining adaptability
Solution Approach 2:
The support structure transitions from a static configuration to a dynamic one where segments and rollers can move. The rollers rotate and segments adjust positions in response to the flexible display panel's deformation, enabling the system to adapt without creating interference
2Adaptability or versatility
If the display panel is made slidable for extension or reduction, then adaptability is improved, but interference with the set cover increases
Solution Approach 1:
The support structure is segmented into multiple movable parts that can adjust independently during sliding operations, allowing the display panel to extend or reduce without interfering with the set cover
Solution Approach 2:
The support structure becomes dynamic with segments that can move and rollers that can rotate during sliding operations, enabling the display panel to change size while avoiding interference with the set cover
3Device complexity
If the support structure is simplified, then device complexity is reduced, but the ability to accommodate deformation is worsened
Solution Approach 1:
The support structure uses simple dynamic elements like rollers that can rotate and segments that can move, providing deformation accommodation capability without significantly increasing structural complexity
Solution Approach 2:
The support structure accommodates deformation by allowing changes in positional parameters of segments and rotational parameters of rollers, rather than requiring complex structural changes, thus maintaining simplicity while enabling adaptation
Data Source
AI summary
A display device includes a display panel including a first active area and a second active area slidable in a first direction, a plurality of segments spaced apart from one another in the first direction, extending in a second direction intersecting the first direction, and supporting a lower surface of the second active area, a panel housing having a guide rail engaged with a portion of each of the segments to guide a sliding motion of the display panel, and a first roller extending in the second direction, disposed in the panel housing, and surrounded by the lower surface of the second active area. The first roller includes a central portion having a first diameter, and a stepped portion protruding from the central portion in the second direction, forming a level difference with the central portion, and overlapping at least one of the segments to form a space.