Cover Bottom Reinforcing Frame Slit Hole Torsional Rigidity
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Solution Overview
Problem
Liquid crystal display devices face issues with torsional rigidity and light leakage due to stress generated during the coupling of chassis structures, leading to deformation and reduced flatness of the cover bottom, which affects display performance.
Innovation Solution
Incorporating a reinforcing frame with a slit hole around the fastening hole of the cover bottom to enhance torsional rigidity and prevent stress transfer, thereby maintaining flatness and preventing light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the cover bottom is coupled with other chassis structures using fastening holes, then the structural stability is improved, but stress is generated causing local deformation and reduced torsional rigidity
Solution Approach 1:
The cover bottom is divided into a first cover bottom and a second cover bottom, separated by a predetermined distance. This segmentation prevents stress generated at one fastening location from transferring to other portions, isolating deformation to specific localized areas and preventing overall structural compromise.
Solution Approach 2:
Different regions of the cover bottom are designed with different properties. The first and second cover bottoms have different fastening hole arrangements and structural characteristics, allowing each region to handle stress differently and preventing uniform deformation across the entire structure.
2Stability of the object's composition
If fastening holes are used to couple chassis structures, then the structural integrity is improved, but light leakage occurs due to deformation around the fastening holes
Solution Approach 1:
By dividing the cover bottom into separate first and second sections with different fastening hole arrangements, the patent isolates deformation effects. This prevents deformation at one fastening location from causing light leakage at other areas, as each segment independently manages its own stress distribution.
Solution Approach 2:
The patent introduces an intermediary structure (the separated second cover bottom with its own fastening holes) that acts as a buffer between the light source and the deformation caused by fastening. This intermediary prevents direct transmission of deformation effects that would cause light leakage.
3Ease of manufacture
If the cover bottom structure is simplified for ease of manufacture, then the production cost is reduced, but the torsional rigidity and flatness are compromised
Solution Approach 1:
The cover bottom is segmented into first and second parts that can be manufactured separately using standard processes, then assembled together. This segmentation allows each part to be produced efficiently while the combined structure provides enhanced torsional rigidity through the distributed fastening hole design.
Solution Approach 2:
The patent combines multiple simple cover bottom sections with different fastening hole patterns into a unified structure. Each individual section remains simple to manufacture, but their combination creates a complex overall structure with superior torsional rigidity and stress distribution characteristics.
Data Source
AI summary
A display improves the flatness of the vertical side portions of the cover bottom and supplements torsional rigidity, thereby preventing light leakage and also improving display performance, and has an improved structure, which, even if a torsion phenomenon occurs in any one portion of chassis structures according to the fastening of the chassis structures, is capable of preventing the torsion phenomenon from affecting other portions.