Curved Display Backplane Supporting Frame
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Solution Overview
Problem
Conventional backplane structures for curved display devices often result in uneven curvature radii due to the resilient force of the backplane, affecting the installation of display panels and the overall appearance of the device.
Innovation Solution
A backplane structure with a supporting frame featuring distinct curvature regions, where the curvature radius decreases from a first region to a second region, ensuring even curvature distribution across the backplane, achieved through the use of a flat-thin sheet backplane and a curved supporting frame with specific edge and midline configurations, and secured using fixing parts like screws or adhesives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a supporting frame with unchanged curvature radius is used to bend the backplane, then the backplane can be curved, but the curvature radius becomes uneven away from the supporting frame due to resilient force
Solution Approach 1:
The supporting frame is designed with different curvature radii at different locations. The first region (near the backplane center) has a larger curvature radius while the second region (away from center) has a smaller curvature radius. This local variation in geometric properties compensates for the resilient force effect, maintaining uniform curvature across the entire backplane surface.
Solution Approach 2:
The curvature radius parameter of the supporting frame is changed progressively from the first region to the second region. By adjusting the curvature radius parameter spatially along the supporting frame, the design achieves even curvature distribution across the backplane despite the resilient force that would otherwise cause non-uniform bending.
2Shape
If the backplane is made ultra-thin for visual impact, then the aesthetic appeal increases, but the structural strength to maintain even curvature radius decreases
Solution Approach 1:
The supporting frame provides localized support with varying curvature characteristics. The first region with larger curvature radius provides stronger support where needed, while the second region with smaller curvature radius accommodates the thin backplane's natural elasticity, together maintaining even curvature across the ultra-thin structure.
Solution Approach 2:
The system combines the ultra-thin backplane material with a specifically designed supporting frame structure. This composite approach allows the thin backplane to achieve aesthetic appeal while the supporting frame with its gradient curvature radii provides the necessary structural strength to maintain uniform curvature.
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 maintains a target curvature radius across all positions of the backplane, ensuring a uniform and aesthetically pleasing curvature, addressing the issue of curvature unevenness and supporting the ultra-thin design requirement of curved display devices.
Implementation Method 1
a portion of the backplane that is away from the supporting frame will cancel a supporting force of the supporting frame because of the resilient force of the backplane
Data Source
AI summary
A backplane structure includes a backplane and a curved supporting frame. The curved supporting frame includes a first and a second region, wherein, a curvature radius of the second region is less than a curvature radius of the first region. The curvature radiuses of the supporting frame are evenly changed from the first region toward the second region. The backplane is a flat-thin sheet, and the supporting frame is installed at a surface of the backplane and bends the backplane to form a curved surface having an even curvature radius. A curved display device includes a display panel and a backplane structure. Different positions of the supporting frame provide different curvature radiuses to apply different supporting forces near or away from the supporting frame such that all positions of the backplane can maintain a target curvature radius. Curvature radiuses of the backplane structure and the curved display device are equal.