In today's era of widespread use of smart devices, LCD touch screens, as the core carrier of human-computer interaction, have a direct impact on user experience through their technological processes. Currently, the mainstream bonding technologies are divided into "full bonding" and "frame bonding", and their differences are mainly reflected in screen structure design.
The full lamination technology uses COA optical adhesive to seamlessly bond the touch layer with the LCD screen, resulting in an integrated black effect that significantly reduces screen reflection and dust intrusion.
This technology makes the display of LCD touch screens more transparent and beautiful, reducing reflection by more than 50% under strong light, and improving touch response speed to milliseconds.
But the production process is more complex compared to frame pasting, and the cost is about 30% higher than frame pasting solutions.
Frame pasting technology uses double-sided tape to fix the touch layer and display screen, leaving an air layer of about 0.3-0.5mm in between, which can easily cause light refraction and result in a "foggy" effect, especially in outdoor scenes where visibility is significantly reduced.
But the cost advantage is prominent, and it still dominates in areas with harsh environments such as industrial control equipment and self-service terminals.
In terms of durability, the fully bonded structure reduces the thickness of the LCD touch screen by 30%, improves impact resistance, and effectively reduces the risk of screen breakage;
Frame stickers are more susceptible to temperature differences due to their layered structure, and long-term use may result in issues such as dust ingress and touch offset.
However, the cost of frame pasting technology is 40% lower than full lamination, and it is still the cost-effective choice for specific fields such as industrial control equipment.
Current industry data shows that the penetration rate of full lamination in the consumer electronics field has reached 65%, while the proportion of industrial scene frame pasting still exceeds 80%.
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