Optical Component Bulge Fool-Proof for Backlight Alignment
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Solution Overview
Problem
The installation process of backlight modules is inefficient due to the similarity in appearance of the front and back surfaces of optical components, leading to frequent reversals and reduced working efficiency.
Innovation Solution
A fool-proof structure with a bulge is integrated onto the optical component, which is matched with a positioning structure on the back plate, allowing clear differentiation of surfaces and facilitating correct alignment during installation, thereby enhancing installation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fool-proof structures (ear-hook, inverted C-angle, slotting) are used on the plastic frame, then single-direction fool proof is achieved, but full-scale fool proof during installation is not achieved
Solution Approach 1:
The patent applies asymmetry by designing a bulge structure on one specific surface of the optical component that does not have a corresponding positioning structure on the back plate. This asymmetric configuration creates visual and physical differentiation between the front and back surfaces, preventing workers from installing the component in the wrong orientation. The bulge serves as a clear visual marker that breaks the symmetry of the otherwise uniform optical component surface.
2Ease of operation
If the bulge height is increased to improve visibility for surface differentiation, then installation guidance is improved, but the bulge may protrude beyond the back plate thickness
Solution Approach 1:
The patent applies parameter changes by optimizing the height dimension of the bulge to fall within a specific range that balances visibility requirements with spatial constraints. The bulge height is designed to be sufficient for clear visual differentiation during installation but constrained to not exceed the back plate thickness, ensuring the component fits within the designated installation space without protruding excessively.
3Manufacturing precision
If multiple fool-proof structures are added to achieve full-scale fool proof, then installation accuracy is improved, but the structure complexity and space occupation increase
Solution Approach 1:
The patent applies merging by integrating the fool-proof function directly into the optical component's existing structure rather than adding separate, independent fool-proof mechanisms. The bulge is formed as part of the optical component itself, combining the functional component with the positioning/guidance feature, thereby achieving full-scale fool proof without significantly increasing overall structural complexity or space occupation.
4Productivity
If the optical component surfaces are made more distinct to prevent reversal, then installation efficiency is improved, but the optical component design complexity increases
Solution Approach 1:
The patent applies local quality by making only a specific localized portion of the optical component surface different through the bulge structure, rather than changing the entire surface characteristics. This localized modification provides sufficient visual differentiation for installation purposes while maintaining the uniformity and simplicity of the rest of the optical component design, thereby minimizing the increase in overall design complexity.
Data Source
AI summary
The present disclosure provides a backlight module and a display panel. The backlight module includes a back plate and an optical component fixed on the back plate. A fool-proof structure is disposed on the optical component. The fool-proof structure includes a bulge. The bulge is disposed on a surface of the optical component. The surface of the optical component is matched and fixed with the back plate. A Positioning structure matched and fixed with the fool-proof structure is disposed on the back plate.