Screen Protection Assembly with Annular Adhesive Exhaust Channel
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Solution Overview
Problem
Existing screen protection assemblies for electronic devices face challenges in smooth film application, air bubble formation, and inadequate protection of devices with a 'sinking' display screen, leading to touch sensitivity issues and aesthetic problems.
Innovation Solution
A screen protection assembly featuring a protective frame with a top wall and side walls, a protective film with a double-sided adhesive layer, and an annular adhesive that allows for independent installation and air channel formation, ensuring bubble-free adherence and comprehensive protection of both the display screen and bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the double-sided adhesive layer is bonded to the display screen in a curved form to accommodate the sinking screen, then the film can be adhered to the display screen, but air cannot be smoothly expelled leading to bubble formation
Solution Approach 1:
The adhesive structure is segmented into two distinct parts: the double-sided adhesive layer for bonding to the display screen and the annular adhesive for bonding to the protective frame. This segmentation allows each adhesive to perform its specific function independently, with the annular adhesive creating an air channel that prevents bubble formation while the double-sided adhesive maintains proper bonding.
Solution Approach 2:
The annular adhesive acts as an intermediary element between the protective frame and the display screen. It creates an air channel that mediates the interaction between the adhesive layer and the display screen, allowing air to be expelled smoothly during application while maintaining proper bonding.
2Ease of operation
If the display screen is made lower than the bezel to facilitate user interaction, then the user interface is improved, but the screen protection assembly cannot comprehensively protect both the display screen and bezel
Solution Approach 1:
The protective frame extends in the vertical dimension with a top wall that covers the bezel and side walls that extend downward to protect the display screen edges. This three-dimensional structure allows the assembly to protect both the bezel and display screen simultaneously, accommodating the sinking screen design while maintaining comprehensive protection.
3Strength
If the protective film and frame are bonded together to prevent detachment, then the structural integrity is improved, but the film application process becomes complex and time-consuming
Solution Approach 1:
The protective frame and film are pre-assembled into a unified structure before application to the display screen. This preliminary assembly ensures structural integrity while simplifying the application process, as the pre-assembled unit can be applied in a single operation rather than requiring separate bonding steps.
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
Enables fast, accurate, and bubble-free film application, ensuring touch sensitivity and aesthetic quality by forming an exhaust channel between the annular adhesive and the bezel, while providing comprehensive protection for both the display screen and bezel.
Implementation Method 1
the double-sided adhesive layer is adhered to, bonded to and fixed to an inner side of the body layer and an inner side of the top wall
Implementation Method 2
forming an exhaust channel between the annular adhesive and the bezel, such that no air bubbles will be generated during the adherence of the protective film and the display screen
Implementation Method 3
the double-sided adhesive layer is adhered to, bonded to and fixed to an inner side of the body layer and an inner side of the top wall
Data Source
AI summary
The present disclosure provides a screen protection assembly including: a protective frame, including a top wall and a side wall; a protective film, including a body layer and a double-sided adhesive layer; and an annular adhesive, disposed on an inner side of the top wall and on a periphery of the double-sided adhesive layer; wherein the annular adhesive is bonded to and fixed to the inner side of the top wall and an inner side of the edge portion of the body layer; a thickness of the annular adhesive is less than a thickness of the double-sided adhesive layer, and a thickness difference between the annular adhesive and the double-sided adhesive layer is greater than or equal to a height difference between a front side of a display screen and a front side of a bezel of a main body of a corresponding electronic device.