Backlight Module Elastic Side Frame Cantilever Stress Relief
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Solution Overview
Problem
Conventional backlight modules fail to effectively protect optical films from fractures due to external shocks or impacts, leading to reduced yield and increased manufacturing costs.
Innovation Solution
The proposed backlight module incorporates an elastic side frame with cantilevers and connecting arms, which create spacing to distribute external forces uniformly and provide stress relief, using a single-mold injection method for cost-effective production, and can be made from materials like metal, plastic, or complex materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If optical films are directly supported on the elastic side frame, then the structure is simple, but the optical films are prone to fracture under impact
Solution Approach 1:
A cantilever is introduced as an intermediary component between the elastic side frame and the optical film. The cantilever has a first spacing from the elastic side frame and a second spacing from the optical film, creating a buffer zone that absorbs impact forces and prevents direct stress transmission to the optical film, thereby reducing fracture risk while maintaining structural simplicity.
2Strength
If the elastic side frame is rigid to provide strong support, then the support strength is high, but the stress concentration at recess corners increases under impact
Solution Approach 1:
The elastic side frame's material parameters are optimized to balance rigidity and flexibility. By selecting appropriate material properties and thickness, the frame maintains sufficient support strength while allowing controlled deformation under impact to reduce stress concentration at the recess corners, preventing optical film fracture.
3Reliability
If multiple components are used to protect optical films, then the protection effectiveness is high, but the manufacturing cost increases
Solution Approach 1:
The cantilever is integrated with the elastic side frame as a unified structure, where the cantilever extends from the side frame and provides protection without requiring separate mounting hardware or additional complex components. This merging approach maintains high protection effectiveness while simplifying the manufacturing process and reducing costs.
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
The design effectively reduces stresses on optical films, ensuring their safety and maintaining optical performance, thereby improving the yield and reducing manufacturing costs of LCD devices.
Implementation Method 1
The cantilever is disposed on the connecting arm, wherein a first spacing is formed between the cantilever and the elastic side frame
Data Source
AI summary
A backlight module and a frame thereof are provided, which comprises an outer frame, an elastic side frame, a connecting arm and a cantilever. Here, the elastic side frame is disposed on the at least one side of the outer frame. The connecting arm is connected to a surface of the elastic side frame. The cantilever is disposed on the connecting arm, and formed a first space with the elastic side frame.