Backlight Module Elastic Member Corner Engagement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The reduced thickness and simplified structure of backlight modules in thin or narrow frame display devices complicate the installation of buffer materials, leading to difficulties in positioning and potential light leakage, increasing assembly time and costs.
Innovation Solution
A backlight module design featuring an elastic member with a flange portion and extension portions that engage with the frame's corner portion, providing internal stress for stable installation and reducing installation time through compressive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the thickness of the buffer material is reduced to accommodate thin or narrow frame display devices, then the space inside the back board is saved, but the buffer material becomes soft and difficult to install, leading to improper installation and light leakage
Solution Approach 1:
The elastic member is divided into multiple functional portions: a flange portion for engagement with the corner, and multiple extension portions extending along different directions. This segmentation allows each portion to perform its specific function - the flange provides structural support for installation, while the extension portions provide buffering and positioning, solving the installation difficulty of thin buffer materials
Solution Approach 2:
The elastic member is pre-formed with a specific geometric shape including the flange portion and extension portions before installation. This preliminary shaping allows the component to be directly installed in its functional configuration, eliminating the need for on-site shaping or adjustment of thin buffer materials, thereby reducing installation difficulty and time
2Volume of moving object
If the thickness of the buffer material is reduced, then the overall size of the backlight module is decreased, but the buffer material becomes too soft to provide proper positioning and may interfere with the light guide plate
Solution Approach 1:
The elastic member is segmented into a flange portion for positioning and multiple extension portions for buffering. This segmentation allows the positioning function to be concentrated in the flange portion, providing stable positioning without requiring increased thickness, while the extension portions provide buffering support
Solution Approach 2:
Different portions of the elastic member have different local properties: the flange portion provides rigid positioning support, while the extension portions provide flexible buffering. This local differentiation allows the thin elastic member to simultaneously achieve precise positioning and adequate buffering without interfering with the light guide plate
3Reliability
If conventional buffer materials are used in the corner portion, then light leakage can be prevented, but the installation time increases and production output decreases
Solution Approach 1:
The elastic member is pre-formed with the flange portion and extension portions in the correct geometric configuration before installation. This preliminary action eliminates the need for complex on-site installation procedures, allowing workers to simply install the pre-shaped component, thereby reducing installation time and increasing production output while maintaining light leakage prevention
Solution Approach 2:
The elastic member's flange portion is designed to automatically engage with the corner of the frame through its geometric shape, providing self-positioning and self-fixing during installation. This self-service capability eliminates the need for complex installation tools or procedures, reducing installation time and increasing productivity while ensuring proper positioning for light leakage prevention
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
Facilitates faster and more stable installation of the elastic member on the backlight module, reducing production time and costs while ensuring proper positioning and preventing light leakage.
Implementation Method 1
The elastic member includes a flange portion, a first extension portion and a second extension portion... when the elastic member is disposed on the frame, the flange portion engages with the corner portion... A portion of the elastic member has an internal stress greater than other portions of the elastic member
Data Source
AI summary
A backlight module comprising an optical component, a frame and an elastic member is presented. The frame has a first sidewall and a second sidewall. An end of the first sidewall is connected to an end of the second sidewall to form a corner portion. The first sidewall and the second sidewall are located at different sides of the optical component. The first sidewall and the second sidewall include a first angle therebetween. The elastic member is configured to be disposed on the frame. The elastic member includes a flange portion, a first extension portion and a second extension portion. The flange portion is configured to be disposed on the corner portion. The first extension portion extends along a first direction away from the flange portion and has a first surface. The second extension portion extends along a second direction away from the flange portion and has a second surface. A second angle is included between the first extension portion and the second extension portion. Wherein before the elastic member is disposed on the frame, the second angle is greater than the first angle; when the elastic member is disposed on the frame, the flange portion engages with the corner portion, the first surface is against an inner surface of the first sidewall, and the second surface is against an inner surface of the second sidewall.