Display Panel Support Rib Cut-Outs for Light Leakage Prevention
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Solution Overview
Problem
Existing display module designs face issues with light leakage, uneven load application to the display panel, and variations in cell thickness leading to voids and deteriorated display quality, particularly when reducing frame size and thickness.
Innovation Solution
A display apparatus with a supporting body that includes a panel supporting portion and ribs, where the ribs are cut out or inclined to avoid direct contact with the display panel, and a spacer is used between the abutting portion and the cabinet to prevent load application to the four corner portions, thus preventing light leakage and maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the frame size and thickness of the display module are reduced, then the compactness and modern appearance are improved, but light leakage occurs and display quality deteriorates due to uneven load application
Solution Approach 1:
The patent applies different structural characteristics to different regions of the support body. The panel supporting portion has a flat lower surface for uniform support, while the end portions have inclined or cut-out configurations to avoid concentrated loading. This local differentiation ensures even load distribution across the display panel without requiring increased frame size.
Solution Approach 2:
The patent introduces a buffer material as an intermediary element between the support body and the display panel. This buffer material absorbs and distributes mechanical stresses, preventing direct transmission of concentrated loads to the panel corners, thereby maintaining display quality in compact designs.
2Strength
If the ribs of the support body directly contact the display panel for support, then the structural support function is improved, but load concentration causes cell thickness variation and void formation
Solution Approach 1:
The patent modifies the local geometry of the rib end portions. Instead of having uniform rectangular cross-sections, the end portions are configured with inclined surfaces or cut-outs that reduce the contact area with the display panel. This prevents concentrated loading while maintaining overall structural support through the distributed contact along the rib length.
Solution Approach 2:
The patent incorporates buffer materials in advance between the rib end portions and the display panel. This preemptive cushioning measure ensures that even when ribs contact the panel, the load is distributed through the compliant buffer material, preventing cell thickness variation and void formation before they can occur.
3Reliability
If buffer material is added between the rib and display panel to prevent load concentration, then display quality is improved, but device complexity and assembly steps increase
Solution Approach 1:
The patent integrates the buffer material directly into the support body structure, forming a unified component rather than a separate assembly step. The buffer material is embedded within the rib structure or attached as an integral part, combining the support function and load distribution function into a single element, thereby reducing overall device complexity.
Solution Approach 2:
The buffer material is applied selectively only at the critical end portions of the ribs where load concentration occurs, rather than throughout the entire support structure. This localized application maintains display quality while minimizing the amount of additional material and complexity introduced to the system.
Data Source
AI summary
A display apparatus with a panel supporting portion includes a supporting body that has a plate shape and supports an end edge portion of an optical sheet. The supporting body includes a panel supporting portion in an outside end edge portion. The panel supporting portion supports an end edge portion of the display panel, and has a rib on an inside end edge portion and a fitting portion that fits one position regulating portion of an optical sheet. The rib has a cut-out portion in which a portion of the rib that corresponds to an end of the fitting portion is cut out so that a height is gradually lowered toward the fitting portion. Load application to the display panel on both end portions of the fitting portion is suppressed by the cut-out portion.