Display Panel Adhesive Segmentation for Bubble Elimination
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Solution Overview
Problem
Bubbles visible to the human eye often persist after defoaming treatment when bonding a screen body with a cover plate, affecting the display effect and fitting accuracy of the display panel.
Innovation Solution
A display panel design that includes a screen body, a cover plate with a protrusion portion, and two adhesive portions: a first adhesive portion filled between the cover plate and the screen body, and a second adhesive portion filled between the protrusion portion and the screen body, ensuring complete filling and elimination of visible bubbles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cover plate is bonded on the screen body to protect it, then the screen body is protected from scratches, but bubbles are generated between the screen body and the cover plate affecting display effect and fitting accuracy
Solution Approach 1:
The bonding structure is segmented into multiple adhesive portions (first adhesive portion and second adhesive portion) with different functions. The first adhesive portion bonds the cover plate to the screen body, while the second adhesive portion specifically addresses the protrusion region to eliminate bubbles, thus resolving the contradiction between protection and fitting accuracy.
Solution Approach 2:
Different adhesive portions are applied to different regions of the bonding interface. The second adhesive portion is specifically placed at the protrusion region where bubbles are most likely to form, providing localized quality improvement to eliminate visible bubbles while maintaining overall bonding strength.
2Stability of the object's composition
If adhesive is applied between the cover plate and screen body, then the components are bonded together, but visible bubbles remain after defoaming treatment affecting display effect
Solution Approach 1:
The adhesive system is divided into multiple portions with the second adhesive portion specifically targeting the protrusion region. This segmentation allows the bonding function to be maintained while specifically addressing the bubble formation issue in critical areas, improving display effect without compromising bonding stability.
Solution Approach 2:
The second adhesive portion is applied in advance to the protrusion region before final bonding, preventing bubble formation at this critical location. This preliminary action ensures that when defoaming is performed, visible bubbles are eliminated while bonding stability is maintained.
Data Source
AI summary
Disclosed are a display panel and a sound box. The display panel includes a screen body, a cover plate, a protrusion portion, a first adhesive portion and a second adhesive portion. The first adhesive portion is filled between a region of the cover plate exposed from the protrusion portion and the screen body, and the second adhesive portion is filled between the protrusion portion and the screen body, such that no gap is generated between the cover plate and the screen body and between the protrusion portion and the screen body, so as to eliminate bubbles visible to human eyes after a defoaming treatment of the screen body and the cover plate, thereby improving a display effect of the display panel.