Rollable Display Panel Support Structure for Flat Unrolling
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Solution Overview
Problem
Flexible display panels in display devices experience unevenness and poor display quality during unrolling due to internal stress, leading to a suboptimal display effect.
Innovation Solution
A display device design featuring a first housing, a second housing slidably connected to the first, a flexible display panel with a planar and rollable portion, a reel, and support columns that are slidably connected to the second housing, ensuring uniform support and tensioning of the display panel to maintain flatness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible display panel is used to enable deformability and bendability, then the display device gains flexibility and adaptability, but the display panel experiences internal stress causing unevenness and poor display quality during unrolling
Solution Approach 1:
The support structure is divided into multiple support columns arranged in an array across the flexible display panel. Each support column independently provides localized support, allowing the system to maintain overall flexibility while addressing stress distribution issues through segmented support points.
Solution Approach 2:
Support columns are strategically positioned at specific locations on the flexible display panel where internal stress causes unevenness. This localized support approach targets problem areas without compromising the overall flexibility of the display panel, providing quality support exactly where needed.
2Stability of the object's composition
If the flexible display panel is made more flexible to improve deformability, then the display device gains adaptability, but the internal stress increases causing warping and unevenness
Solution Approach 1:
The support columns act as counterbalancing elements that offset the internal stress and warping forces in the flexible display panel. By providing opposing support forces at critical locations, the columns counteract the natural tendency of the panel to warp during deformation and unrolling.
Solution Approach 2:
The support columns are pre-positioned and pre-configured on the flexible display panel before use. This preliminary arrangement ensures that support is already in place to prevent unevenness and warping from occurring during subsequent deformation or unrolling operations, rather than attempting to correct issues after they arise.
Data Source
AI summary
Provided is a display device. The display device includes: a first housing and at least one second housing, wherein the second housing is slidably connected to the first housing; a flexible display panel including a planar display portion and a rollable display portion, wherein the planar display portion is secured on the first housing; a reel disposed in and connected to the second housing, wherein the rollable display portion includes a first portion wound over the reel and a second portion parallel to the planar display portion; and a plurality of support columns arranged in an array, wherein two ends of each support column are slidably connected to the second housing, the support columns are fixedly connected to a rear face of the rollable display portion, and at least some support columns are in contact with a side of the reel.