Rear Frame Inverted Flange for Display Housing
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Solution Overview
Problem
Conventional display devices with rear frames require additional fixing members and expose the flange on the outside, making them unsuitable for use as rear housings.
Innovation Solution
A display device design featuring a rear frame with inner bent components that extend forward and inward, allowing the rear frame to be used as a housing while eliminating the need for a dedicated fixing member for the plastic frame, which supports the liquid crystal panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the edge of the rear frame is bent outward to form a U-shaped flange for fixing the plastic frame, then the number of parts can be reduced and the plastic frame can be fixed directly to the rear frame, but the flange is exposed on the outside making it unsuitable for use as a rear housing
Solution Approach 1:
Instead of bending the edge of the rear frame outward to form a U-shaped flange, the patent bends the edge inward to form an inverted U-shaped flange that faces the front surface side. This inversion allows the flange to remain hidden inside the housing while still providing the necessary fixing function, thus resolving the contradiction between part reduction and aesthetic appearance.
Solution Approach 2:
The inverted U-shaped flange is nested within the housing structure, with the flange positioned inside the housing cavity rather than protruding outward. This nesting arrangement allows the fixing component to be contained within the overall structure, maintaining a clean external appearance while preserving the functional benefits of direct fixing.
2Strength
If a dedicated fixing member is provided to fix the plastic frame to the rear frame, then the fixing strength can be ensured, but the number of parts increases and the structure becomes more complex
Solution Approach 1:
The patent merges the rear frame structure with the fixing function by integrating the inverted U-shaped flange directly into the rear frame. This combination eliminates the need for separate dedicated fixing members, as the flange itself serves as both a structural component and a fixing mechanism, thereby reducing part count while maintaining fixing strength.
Solution Approach 2:
The inverted U-shaped flange serves multiple functions: it provides structural support as part of the rear frame, acts as a fixing component for the plastic frame, and maintains aesthetic appearance by remaining hidden. This multi-functionality eliminates the need for separate dedicated fixing members, resolving the contradiction between fixing strength and device complexity.
3Shape
If the inverted U-shaped flange is formed by bending the edge inward, then the rear frame can be used as a rear housing with improved aesthetics, but the fixing mechanism becomes less obvious
Solution Approach 1:
The inverted U-shaped flange is pre-formed during the rear frame manufacturing process through edge bending, rather than being assembled separately. This preliminary action ensures the fixing mechanism is already in place and properly positioned before the plastic frame is installed, making the assembly process straightforward despite the less obvious fixing mechanism.
Solution Approach 2:
The inverted U-shaped flange is self-forming through the bending process, creating its own fixing structure without requiring additional components or complex assembly steps. The flange's geometry itself provides the fixing capability, making the assembly process simple while maintaining aesthetic appearance.
Data Source
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AI summary
A display device includes a display component (51), a plastic frame (6), and a rear frame (2). The plastic frame supports the display component near an edge portion of the display component from a rear side of the display device relative to the display component. The rear frame is disposed on the rear side of the display device relative to the display component. The rear frame includes a fixing component (21a, 21b) that fixedly couples at least the plastic frame relative to the rear frame. The fixing component has an inner bent component that extends forward and inward of the display device from an edge part of the rear frame.