Narrow-Bezel Frame Assembly via Tapered Interlocking Segments
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Solution Overview
Problem
Conventional display devices with backlight modules have borders that are unnecessarily wide due to the need for sufficient assembly strength, which hinders the achievement of narrow-border designs.
Innovation Solution
A frame assembly comprising a first assembly with assembling portions and a second assembly with engaging portions, where the engaging portions have tapering widths to ensure assembly stability and structural integrity, allowing the first assembly to be directly connected to the outer edge of the second assembly, thereby reducing the border width and achieving a narrow-border design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the outer wall and sidewall have sufficient thickness to ensure assembly strength, then the assembly strength is improved, but the border width increases
Solution Approach 1:
The frame is divided into a first frame component and a second frame component that are assembled together. The first frame component has an engaging portion with a tapered structure, while the second frame component has an assembling portion that fits into the engaging portion. This segmentation allows the components to interlock securely without requiring excessive thickness, thereby reducing border width while maintaining assembly strength.
Solution Approach 2:
The engaging portion of the first frame component features an asymmetric tapered structure where the width between two engaging surfaces varies along the engagement direction. The width is larger at one end and smaller at the other end, creating a wedge-like fit that enhances assembly strength through mechanical interference without increasing overall border width.
2Length of stationary object
If the outer wall and sidewall are made thinner to reduce border width, then the border width is reduced, but the assembly strength becomes insufficient
Solution Approach 1:
The engaging portion incorporates a tapered geometric form that creates a wedge-like interference fit. This geometric curvature allows thin-walled components to achieve strong assembly through distributed mechanical interlocking rather than relying on thick walls for strength.
3Stability of the object's composition
If the engaging portion has a tapered width structure, then the assembly stability is improved, but the manufacturing complexity increases
Solution Approach 1:
The tapered structure is applied locally only to the engaging portion of the first frame component, rather than the entire frame. This localized geometric feature provides the necessary assembly stability and anti-loosening function while minimizing the impact on overall manufacturing complexity, as only a specific region requires the tapered geometry.
Data Source
AI summary
A frame assembly has a front side, a back side, at least one first assembly and a second assembly. The first assembly has multiple assembling portions disposed at spaced intervals. The second assembly has multiple engaging portions disposed at spaced intervals, and each one of the multiple engaging portions has two engaging surfaces disposed at a spaced interval, a bottom surface connected with the two engaging surfaces, and an opening opposed to the bottom surface and located on an outer edge of the second assembly. A width between the two engaging surfaces near the opening is smaller than a width near the bottom surface. Locations of the multiple engaging portions correspond to locations of the assembling portions, and multiple assembling portions and the multiple engaging portions are capable of being engaged together. A backlight module and a display device are also provided.