Square Seal Roulette Design for Narrow Frame Backlight Modules
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Solution Overview
Problem
The existing methods for manufacturing narrow frame backlight modules face challenges in cutting narrow square seals, leading to overflow seal issues and waste material adhesion, which restrict the narrow frame design and reduce yield.
Innovation Solution
A square seal design utilizing a roulette pattern with L-shaped slits on the adhesive material body and protective films, allowing for precise cutting and separation, and a manufacturing method that involves forming inner and outer frame lines with a roulette to facilitate easy removal of redundant material, enabling a narrow frame backlight module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the width of the square seal is decreased to achieve narrow frame design, then the side frame width is reduced, but the square seal becomes difficult to cut and causes overflow seal and waste material adhesion
Solution Approach 1:
The patent introduces a roulette structure with segmented slits that divides the cutting path into multiple sections. This segmentation allows the cutting knife to easily separate the square seal from waste material along the slits, solving the cutting difficulty problem while maintaining narrow frame dimensions
Solution Approach 2:
The roulette slits are pre-formed on the square seal before the final cutting process. This preliminary action creates predetermined separation paths that guide the cutting knife, preventing overflow seal and waste material adhesion during the narrowing process
2Length of stationary object
If the width of the square seal is decreased to achieve narrow frame design, then the side frame width is reduced, but overflow seal and waste material adhesion occur reducing yield
Solution Approach 1:
The roulette structure with multiple slits segments the adhesive material body, creating clear separation zones between the square seal and waste material. This prevents overflow seal during cutting and eliminates waste material adhesion, thereby maintaining high yield in narrow frame production
Solution Approach 2:
The roulette design enables easy extraction and removal of waste material from the square seal after cutting. The segmented slits allow waste material to be cleanly separated and removed without affecting the quality or yield of the final product
Data Source
AI summary
The present invention provides square seal, a manufacture method of square seal and a manufacture method of a backlight module. The square seal utilizes the roulette design. As being assembled, the redundant material outside the roulette is removed along the roulette to obtain the square seal of narrow frame so that the square seal achieves the narrow frame without the issues of overflow seal and waste material adhesion. The square seal can be easily separated from the waste material to effectively reduce the defect rate. In the manufacture method of the square seal according to the present invention, the square seal inner frame line is first cut on the seal body film material, and then the dotted roulette is formed at position of the square seal outer frame line is pre formed, and finally, the circle of the square seal reserved outer frame line is cut at the periphery of the roulette.