Foldable Backplate Film Half-Cutting Direction
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Solution Overview
Problem
Existing methods for manufacturing foldable backplate films result in the backplate being damaged during the release film peeling process, leading to reliability and stability issues.
Innovation Solution
A modified half-cutting process where the foldable backplate is cut in a direction from the first release film to the protective film, followed by peeling the first release film and attaching a non-cut second release film, to prevent backplate damage during peeling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If half-cutting is performed from the foldable backplate to the release film, then the foldable backplate film can be divided into body part and pad part, but the backplate gets damaged during release film peeling
Solution Approach 1:
The cutting direction is inverted from the conventional method. Instead of cutting from the foldable backplate toward the release film, the cutting is performed from the release film toward the protective film. This reversal prevents the cutting blade from directly damaging the backplate structure and allows the release film to be peeled off without causing backplate damage.
Solution Approach 2:
The protective film serves as an intermediary layer that protects the foldable backplate during the cutting process. By cutting through the release film and protective film rather than directly through the backplate, the protective film mediates the cutting action and prevents direct contact between the cutting blade and the backplate, thereby preventing damage.
2Productivity
If half-cutting creates a groove in the release film, then the cutting process is completed, but the groove causes the backplate to come with the release film during peeling
Solution Approach 1:
The cutting direction is inverted to cut from the release film toward the protective film instead of from the backplate toward the release film. This reversal ensures that the groove is created in the protective film rather than in the release film, preventing the groove from causing the backplate to adhere to the release film during peeling.
Solution Approach 2:
The harmful groove formation is extracted from the release film and relocated to the protective film. By changing the cutting path, the groove is created in the protective film layer instead of the release film layer, thereby separating the groove's harmful effect from the peeling process between the release film and backplate.
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
This method effectively prevents the backplate from being damaged during the release film peeling process, enhancing the reliability and stability of the foldable backplate film.
Implementation Method 1
a pressure-sensitive adhesive layer provided on one side of the base film
Implementation Method 2
attaching a first release film to the opposite side of the side of the pressure-sensitive adhesive layer
Data Source
AI summary
The present application relates to a method for manufacturing a foldable backplate film, and according to one aspect of the present invention, a method for manufacturing a foldable backplate film that the foldable backplate film is manufactured by a method of cutting it in a direction from the release film to the protective film upon half-cutting, and then release-changing the release film, whereby by improving a half-cutting process, the foldable backplate does not fall off upon the release film peeling, is provided.