How to ensure bubble free when using the vacuum OCA laminating machine?
The skilled technician and i visit customers on a regular basis and learned the various demands of customers,especially those customers who manufacture complete LCD display.Because of its high technical requirement,there are much more strict specifications for craftsmanship,techniques,key points etc. In most cases they got the headache:air bubbles.Therefore,i made a detailed technical consultation and study on this,and finally got the following experience for reference.
1. There is a certain relationship between the generation of bubbles and OCA glue.Although it is not indispensable to use top-level OCA glue such as Mitsubishi,you are suggested to choose the reliable brands,because in most cases air bubbles appear because of poor quality OCA glue,such as unevenness,poor viscosity and poor air permeability etc.
2. In the process of OCA lamination,it is a must to pay much attention to the operation method.At present,there are many manual vacuum OCA laminating machines(OCA film laminating machines) used for OCA lamination in the market,but made by way too many different manufacturers and trading companies,it is really hard to distinguish which is the one with best performance.A good vacuum OCA laminating machine should be equipped with a selected platform and the roller is adjusted to a certain height,reasonable avoidance and pressure.A smooth lamination process will bring perfect lamination,greatly improving the yield and efficiency.
3. When aligning the front glass with LCD,we must pay attention to the focus point.It is very helpful to expel the glass between glass and LCD if aligning done with a very good focus point.Many experiments have shown that the choice of a good focus point can produce higher product yield.
4. In the vacuum lamination stage,please make sure the correct setting of parameters such as pressure,negative pressure,temperature,time,etc.All vacuum OCA laminating machines from OCAMaster set different parameters for different models and provides free technical guidance and training.
5. The last but not the least,it proves the selection of a good performance bubble remover machine is indispensable.When air bubbles found after lamination,bubble removing should be carried out at the very first time.
In summary,all this should be done in dust-free environment.Only perfecting each of the above steps can achieve perfect lamination without air bubbles.For more details or skills,welcome to contact OCAMaster today!
---By Annie OCAMaster
