Spliced Display Panel Convex Support Structure for Edge Warpage
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Solution Overview
Problem
Large-size display devices composed of spliced panels suffer from warpage at the periphery, leading to light leakage, degraded image quality, and unsightly bulging edges, which affect user experience and appearance.
Innovation Solution
The display device incorporates a base, display panels, and spacers that elevate the central areas of the panels relative to the periphery, forming a convex shape to reduce warpage and minimize edge visibility, with spacers made of elastic materials like rubber columns or adjustment screws to maintain distance and prevent circuit damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If spliced panels are used to form large-size display devices, then the display area is increased, but warpage occurs at the periphery of each panel
Solution Approach 1:
The display device is divided into multiple spliced panels, each panel being a separate unit that can be independently manufactured and assembled. This segmentation allows each panel to be optimized for its specific function while maintaining overall display area, though it introduces warpage issues at the periphery of each panel
Solution Approach 2:
The patent introduces a new spatial dimension by raising the central area of each panel above the peripheral area, creating a convex shape. This dimensional change from a flat planar structure to a three-dimensional convex structure eliminates warpage by providing a reference surface that maintains panel flatness across the display area
2Area of stationary object
If spliced panels are used to form large-size display devices, then the display area is increased, but light leakage occurs at the periphery of warped panels
Solution Approach 1:
By creating a convex shape where the central area is raised above the peripheral area, the patent establishes a three-dimensional reference surface that prevents light leakage. The convex structure ensures that light is contained within the display boundaries, eliminating the harmful light leakage effect at panel peripheries
3Area of stationary object
If spliced panels are used to form large-size display devices, then the display area is increased, but bulging edges become visible affecting appearance
Solution Approach 1:
The patent applies a convex shape design where the central area is raised above the peripheral area, creating a three-dimensional profile. This dimensional change transforms the flat panel structure into a convex form that eliminates visible bulging edges, as the raised central area provides a reference surface that compensates for any edge deformation
Data Source
AI summary
A display device includes a base, a display panel, and a spacer. The display panel is disposed on the base and has a back surface. The back surface has a central area and a peripheral area closer to the edge of the display panel than the central area. The shortest distance between the central area and the base is greater than the shortest distance between the peripheral area and the base. The spacer is disposed between the base and the back surface corresponding to the central area. The spacer is disposed to raise the central portion of the display panel relative to the edge of the display panel, so the arching configuration of the display panel prevents the edge of the display panel from warping.