The advantages of OCA Bonding and Water Glue Bonding of touch screen in different applications

In today's diversified intelligent terminal devices, the choice of touch screen bonding technology directly affects the performance of touch screen products, thereby affecting the user's experience. We know about the difference between OCA Bonding and Water Glue Bonding in the last article, now let's come into deep analysis of the advantages in different applications. As a touch display manufacturing expert with a monthly production capacity of over 500000 pieces, Shenzhen Xinlilai Touch Technology Co., Ltd. combines typical industry cases to help you find the best solution.

1、 Car Touch Screen: The "Resilience Advantage" of Water Glue
The actual testing of a new energy vehicle enterprise project shows that:
Temperature adaptability: Water gel has no delamination at -40 ℃~105 ℃ (OCA is prone to stress lines at low temperature edges)
Seismic performance: In simulated bumpy road tests, the failure rate of the IC bonding area of the water-based adhesive screen was reduced by 23%
Light transmission compensation: Water gel can fill the surface microstructure of AG glass, reducing glare loss by 2-3%
But one thing to note is that the front mounted car must use UV resistant water-based adhesive (such as the Xinlilai car screen series). Direct sunlight on the touch screen can cause yellowing, but UV resistant water-based adhesive can effectively solve this problem.
 

2、 Medical Device Touch Screen: OCA's' Pure Choice '
Special requirements for operating room touch devices:
1. Chemical tolerance: OCA has better resistance to disinfectants such as alcohol and isopropanol than water-based gel
2. Non volatile: Medical grade OCA has passed ISO 10993 biocompatibility certification
3. Long term stability: DICOM standard calibration screens need to maintain color consistency for more than 5 years
Typical case: After a certain endoscope manufacturer switched to OCA bonding, the equipment repair rate decreased from 5.6% to 1.2%.
 

3、 Hybrid solution for industrial control screens
Regarding the challenges of oil pollution/vibration in factory environments:
The surface layer adopts OCA to ensure light transmittance
Use water-based adhesive to buffer vibrations between the touch layer and LCD
The Hybrid solution developed by Xinlilai for a certain robot manufacturer has increased the MTBF (mean time between failures) of the equipment to 80000 hours.
 

Both OCA bonding and water-based adhesive bonding have their own advantages and disadvantages. Different applications have different performance requirements for touch screens, so OCA bonding and water-based adhesive bonding can play their respective optimal roles in different fields. Shenzhen Xinlilai Touch Technology Co., Ltd. has mature OCA bonding and water-based adhesive bonding processes, providing high-quality bonding processes for multiple customers, and is deeply loved and trusted by customers.