Magnetic Bracket for Display Backlight Unit
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Solution Overview
Problem
Existing display devices face challenges in efficiently securing and protecting the backlight unit, which can lead to issues such as light leakage and increased manufacturing costs due to the use of screws and other fastening members.
Innovation Solution
The display device employs a bracket system with a groove for adhesive application, an inner magnet part for magnetic coupling between the back cover and frame, and an outer magnet part for hanging, eliminating the need for screws and reducing weight by using an adhesive layer and magnetic attachments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws and fastening members are used to secure the backlight unit, then the structural strength and reliability are improved, but the manufacturing cost increases and the device weight increases
Solution Approach 1:
The patent replaces the mechanical fastening system (screws, clips, and fastening members) with a magnetic field-based holding system. The frame includes a magnet part that magnetically holds the backlight unit in place, eliminating the need for mechanical fasteners. This substitution reduces manufacturing costs while maintaining sufficient structural reliability through magnetic attraction forces.
2Reliability
If screws and fastening members are used to secure the backlight unit, then the structural strength and reliability are improved, but the device weight increases
Solution Approach 1:
The patent replaces heavy mechanical fastening components (screws, metal clips, fastening members) with a lightweight magnetic field-based holding system. The magnet part integrated into the frame structure provides sufficient holding force without adding significant weight, thereby reducing the overall device weight while maintaining structural reliability.
3Length of moving object
If the back cover is positioned close to the display panel, then the device thickness is reduced, but the protection against external pressures and impacts is weakened
Solution Approach 1:
The patent incorporates a cushioning structure between the back cover and the display panel that provides protective buffering before external pressures or impacts can reach the sensitive components. This cushioning layer absorbs and distributes external forces, protecting the display panel and internal components while maintaining a relatively thin overall device profile.
4Length of moving object
If the back cover is positioned close to the display panel, then the device thickness is reduced, but the protection against light leakage is weakened
Solution Approach 1:
The cushioning structure positioned between the back cover and display panel serves a dual function: it provides mechanical protection while also acting as an optical barrier to prevent light leakage. The cushioning material absorbs and blocks stray light before it can escape through gaps, thereby eliminating light leakage issues while maintaining a thin device design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the adhesive strength, reduces manufacturing costs, and improves the optical characteristics by creating an air gap between the back substrate and optical layer, while also providing effective protection against external pressures and impacts.
Implementation Method 1
an inner magnet part for magnetic coupling between the back cover and frame
Data Source
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AI summary
A display device includes a display panel, a frame positioned in the rear of the display panel, a back cover positioned in the rear of the frame, and a fastening part which is positioned between the back cover and the frame and connects the back cover to the frame. The fastening part includes a base part, a moving part which is movably connected to the base part and includes a first hook, a spring part having one end connected to the base part and the other end connected to the moving part, a handle part which is movably connected to the base part and changes a length of the spring part by a rotation of the handle part, and a connection part including a second hook corresponding to the first hook of the moving part.