Flexible Fastening Apparatus for LCD Backlight Assembly
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Solution Overview
Problem
Existing fastening apparatuses for backlight assemblies in LCD devices face issues such as manufacturing challenges with hooks, increased costs and assembly efforts, damage to reflective sheets during installation or adjustment, and instability of supporters during movement.
Innovation Solution
A fastening apparatus comprising a base with a hanger and a hook on one side, a groove that separates the base into inner and outer parts for flexibility, and crack arresters to prevent cracking, made of materials like polycarbonate for optimal light reflection, which securely engages with the back cover using a hanger for hanging and a hook for locking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hooks are used to snap into the back cover for fixing the supporter, then the supporter can be fixed on the back cover, but the manufacturing of the hook is challenging and dimensions may deviate from design
Solution Approach 1:
The patent combines the hook and base into a single integrated fastening apparatus made of flexible material. The hook portion and base portion are merged into one piece that can elastically deform, eliminating the need for separate hook components and their associated manufacturing precision challenges while maintaining reliable fixing functionality.
Solution Approach 2:
The patent changes the physical parameter of the fastening apparatus by using a flexible material that allows elastic deformation. This parameter change enables the integrated structure to adapt during installation and provide reliable fixing without requiring high manufacturing precision for separate hook components.
2Reliability
If a fixing element such as a screw or bolt is used to fix the supporter on the back cover, then the supporter can be securely fixed, but it takes more cost and more effort for assembly
Solution Approach 1:
The patent extracts and eliminates the need for separate fixing elements like screws or bolts by using an integrated flexible fastening apparatus. The elastic deformation capability of the unified structure provides secure fixing without requiring additional fastening components, thereby reducing device complexity and assembly effort.
3Reliability
If twin adhesive tape is used on the bottom of the supporter for adhering to the back cover, then the supporter can be fixed on the back cover, but the reflective sheet is more likely to damage when reinstalling or adjusting
Solution Approach 1:
The patent replaces the chemical adhesion mechanism (adhesive tape) with a mechanical elastic deformation mechanism. The flexible fastening apparatus uses elasticity to provide adhesion and securing force, eliminating the need for adhesive tapes that could damage the reflective sheet during installation or adjustment operations.
4Ease of operation
If a rotatable pin or simple hanger is used to fix the supporter, then installation is easy, but the supporter is possible to detach from the back cover on every movement
Solution Approach 1:
The patent introduces dynamic elastic deformation capability to the fastening apparatus. The flexible material allows the structure to dynamically adapt during installation for ease of operation, then maintains stable fixing through elastic recovery force that prevents detachment during movement, resolving the contradiction between installation ease and fixing stability.
Data Source
AI summary
The fastening apparatus utilizes a hanger and a hook disposed on the first side of a base of the fastening apparatus for hanging and fixing the fastening apparatus on a back cover of the LCD device. A groove divides the base into two parts and the outer part of the base as well as the hook is flexible relative to the inner part of the base. Two crack arresters are disposed at the end of the groove for preventing cracking of the fastening apparatus when repeated bending movement is needed while installing the fastening apparatus.