Mold Frame Corner Cut Structure for Display Assembly Reliability
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Solution Overview
Problem
Liquid crystal display modules with hybrid panel structures face assembly challenges due to positional mismatches between the front panel and mold frame, leading to potential damage and assembly issues, particularly when rotational mismatches occur, which can be exacerbated by the need for a balance between securing clearance and maintaining a compact housing.
Innovation Solution
The design incorporates a mold frame with inclined or rounded corners to prevent contact during assembly, allowing for secure positioning and reducing the risk of damage by creating a margin against rotational mismatches, while maintaining a compact housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the four sides of the front panel are located outside the four sides of the mold frame, then the hybrid panel structure achieves better outdoor visibility and higher luminance factor, but positional mismatches between the front panel and mold frame occur during assembly, leading to potential damage and assembly issues
Solution Approach 1:
The patent applies asymmetry by making the front panel larger than the mold frame, creating an intentional size difference that allows the front panel to extend beyond the mold frame boundaries. This asymmetric configuration enables the hybrid panel structure to achieve better outdoor visibility and higher luminance factor while the patent simultaneously addresses the positioning issue through other means (adhesive structures, alignment features) to prevent mismatches during assembly
2Ease of operation
If clearance is secured between the side walls of the opening of the housing and the mold frame, then assembly is facilitated, but the housing cannot be made compact
Solution Approach 1:
The patent applies parameter changes by optimizing the clearance dimensions between the housing opening side walls and the mold frame. By carefully controlling and adjusting the clearance parameters to minimal necessary values, the patent facilitates assembly while maintaining housing compactness, resolving the contradiction between assembly ease and compact design
3Manufacturing precision
If the front panel is pasted to the liquid crystal display panel with high precision, then the position of the front panel and mold frame match, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by incorporating positioning structures and alignment features into the mold frame and front panel design before the actual assembly process. These pre-designed features guide the alignment and positioning of components, ensuring high positioning precision between the front panel and mold frame while simplifying the manufacturing process through built-in alignment mechanisms rather than requiring high-precision manual pasting
Data Source
AI summary
An object of the present invention is to increase the reliability in the assembly of display devices. The display device according to the present invention is provided with: a display panel; a mold frame for containing the above described display panel; and a front panel provided on a surface of the above described display panel on the viewer side, and the form of the above described mold frame in a plane is rectangular, with four corners, and at least two corners on a diagonal line, from among the above described four corners, have a cut structure with a diagonal side which is inclined relative to the two sides forming the corner.