Backlight Module Frame Positioning Mechanism
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Solution Overview
Problem
The conventional backlight module assembly process is inefficient due to the lack of a positioning mechanism between the rear bezel and the mold frame, leading to misalignment and increased assembly time, which results in low product yield and higher production costs.
Innovation Solution
A frame structure for the backlight module that includes a body with stoppers and positioning holes and a mold frame with positioning posts, allowing for precise alignment and adherence through a positioning mechanism, thereby ensuring accurate and rapid assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If no positioning mechanism is disposed between the rear bezel and the mold frame, then the assembly process is simple, but the mold frame cannot be precisely aligned with the rear bezel, resulting in low product yield and increased assembly time
Solution Approach 1:
The mold frame automatically positions itself relative to the rear bezel through the positioning posts fitting into positioning holes and stoppers limiting movement, eliminating the need for operator intervention in alignment. The structure itself provides the positioning function without requiring external positioning mechanisms or skilled manual alignment.
Solution Approach 2:
The positioning function is divided into distinct components: positioning holes in the rear bezel, positioning posts on the mold frame, and stoppers for movement limitation. This segmentation allows each component to perform its specific positioning function independently, achieving precise alignment through the combination of these simple elements.
2Productivity
If the operator aligns the mold frame with the rear bezel manually, then positioning can be achieved, but the assembly time increases and productivity decreases
Solution Approach 1:
The positioning holes and stoppers are pre-positioned on the rear bezel during its manufacturing process, and the positioning posts are pre-positioned on the mold frame. This preliminary positioning preparation eliminates the need for time-consuming manual alignment during assembly, as the components are designed to fit together in their correct positions from the start.
3Strength
If binding material is coated on the rear bezel to adhere the mold frame, then the mold frame can be firmly bound, but without a positioning mechanism the alignment cannot be ensured
Solution Approach 1:
The positioning posts act as intermediaries between the mold frame and rear bezel, fitting into the positioning holes to ensure precise alignment before the binding material sets. The stoppers serve as intermediaries to limit movement and maintain proper positioning during the bonding process, allowing the binding material to adhere the components in the correct aligned state.
Data Source
AI summary
A frame structure of a backlight module includes a body and a mold frame. A side wall surrounds a bearing surface of the body, and the side wall has at least one stopper and at least one positioning hole. A side edge of the mold frame has at least one positioning post. When the mold frame is disposed on the side wall, the side edge of the mold frame leans against the stopper, and the positioning post of the mold frame is embedded in the positioning hole.