Flexible Display Support Structure for Flatness in Stretching
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Solution Overview
Problem
Flexible display panels experience poor flatness and display quality when stretched due to unevenness, necessitating additional space for tensioning mechanisms, which hinders miniaturization.
Innovation Solution
A display device design featuring a first housing, a second housing with stoppers and support bars, and load-bearing strips that intersect with the support bars to stabilize the flexible display panel, ensuring uniform support and preventing warping during stretching and rolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If additional space is allocated for tensioning mechanisms, then flatness and display quality are improved, but device size increases and miniaturization is hindered
Solution Approach 1:
The patent employs a dynamic tensioning mechanism where the flexible display panel is tensioned through the relative movement between the first housing and second housing. The panel transitions between a first state (when housings are close) and a second state (when housings are separated), with the tensioning force automatically adjusting based on the distance between housings. This eliminates the need for dedicated tensioning mechanism space while maintaining flatness.
Solution Approach 2:
The flexible display panel serves multiple functions: it acts as both the display medium and the tensioning element. The housing structure serves dual purposes as both protective casing and the moving component that provides tensioning. This multi-functionality eliminates the need for separate tensioning mechanisms, reducing device volume while maintaining display quality.
2Area of moving object
If the flexible display panel is stretched to improve display area, then display area increases, but unevenness and warping occur reducing display quality
Solution Approach 1:
The patent creates a dynamic balance between panel stretching and tensioning. As the second housing moves away from the first housing, the flexible display panel is gradually stretched to expand the display area. Simultaneously, the increasing distance generates elastic restoring force that tensions the panel, preventing unevenness and warping. The system automatically adjusts the tensioning force based on the stretching degree.
Solution Approach 2:
The patent changes the physical state parameters of the flexible display panel by controlling the distance between housings. When the housings are separated, the panel transitions from a relaxed state to a stretched and tensioned state, achieving both area expansion and flatness maintenance through parameter control.
3Ease of operation
If the flexible display panel is rolled up for portability, then portability is improved, but the panel may warp or deform
Solution Approach 1:
The patent employs dynamic tensioning during the rolling process. As the flexible display panel is rolled up, the elastic restoring force from the stretched panel automatically tensions the rolled structure, preventing warping and deformation. The tensioning force adapts to the rolling degree, maintaining panel stability throughout the portability transition.
Data Source
AI summary
Provided is a display device, including a first housing, at least one second housing, a flexible display panel, and a plurality of load-bearing strips. The second housing includes a mount housing, two stoppers, and at least one support bar. The flexible display panel includes a planar display portion, fixed to the first housing, and a curved display portion. The curved display portion includes a first portion and a second portion wrapped on a side, going away from the first housing, of the mount housing. Two ends of the load-bearing strip are respectively slidably connected to the two stoppers. The load-bearing strips are fixedly connected to a backside of the curved display portion. A lengthwise direction of the load-bearing strip is intersected with a lengthwise direction of the support bar. A surface, going away from the curved display portion, of the load-bearing strip is in contact with the support bar.