Protective Film Assembly for Dust-Free Screen Alignment
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Solution Overview
Problem
Existing methods for applying protective films to electronic device screens often result in misalignment and dust accumulation, leading to a poor user experience and increased waste.
Innovation Solution
A film applicator assembly that includes a positioning cavity and a positioning film to align the protective film with the screen, using a pull film to detach the release film while keeping the screen and film enclosed, and utilizing static electricity to attract dust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the release film is removed from the protective film before placing it on the screen, then the protective film can be applied to the screen, but dust may stick to the exposed screen or protective film causing misalignment
Solution Approach 1:
The protective film is pre-mounted on the film applicator before the actual application process. This preliminary positioning ensures that when the release film is removed, the protective film remains confined within the applicator structure, preventing dust contamination while maintaining ease of application.
Solution Approach 2:
The film applicator serves as an intermediary structure that holds the protective film during the application process. By keeping the protective film mounted on the applicator rather than exposing it directly, the system prevents dust accumulation while still allowing for easy application to the screen.
2Device complexity
If users apply protective films by themselves without a positioning structure, then the process is simple, but the films often end up misaligned on the screens
Solution Approach 1:
The film applicator serves multiple functions: it provides positioning guidance through the positioning cavity, holds the protective film during application, and ensures proper alignment. This multi-functional design achieves high alignment accuracy without significantly increasing overall device complexity.
Solution Approach 2:
The positioning cavity and positioning film structure enables the applicator to automatically guide and align the protective film during application. The structure itself provides the alignment function without requiring additional complex adjustment mechanisms, maintaining simplicity while achieving precision.
3Productivity
If the protective film is placed in the designated area after removing the release film, then the film application is completed, but it is easy to place the protective film inaccurately leading to misalignment
Solution Approach 1:
The protective film is pre-positioned on the film applicator with the positioning film before application. This preliminary positioning ensures that when the film is transferred to the screen, it maintains accurate alignment without requiring manual adjustment, thus preserving both efficiency and precision.
Solution Approach 2:
The positioning film creates a mechanical connection between the protective film and the applicator, replacing the need for manual alignment operations. This mechanical linkage ensures accurate placement while maintaining a simple, efficient application process.
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
Reduces misalignment and dust entry during film application, simplifying the process and improving accuracy and success rate.
Implementation Method 1
static electricity is generated when the release film is detached from the protective film, and the static electricity can attract dust and carry it away
Data Source
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AI summary
The present utility model provides a film applicator, a protective film unit and a film applicator assembly. The film applicator includes a main body including a positioning cavity for positioning an electronic device therein; a positioning film located in the positioning cavity or at one side of the positioning cavity. The positioning film is connected to the main body. The protective film unit is connected to the main body via the positioning film. The protective film unit is adhesively connected to the positioning film. The protective film unit is adhesively connected to the film applicator via the positioning film located in the positioning cavity or on one side of the positioning cavity, so that the protective film unit is adhered to the positioning cavity. In use, only the screen of the electronic device needs to be aligned with and placed into the positioning cavity, that is, the film applicator is sleeve on the screen of the electronic device so that the protective film unit is aligned with the screen of the electronic device, which is convenient for the user to apply the film on the screen of the electronic device and reduces the possibility of misalignment during the film application process, lowering the failure rate of misalignment.