Mishell.repair's Blog: Introduction for OCA and UV Glue

OCA optical adhesive called OCA, which is a transparent resin and an inorganic material is plastic.It is mainly used LCDA touch screen Lamination , simply , is highly transparent double-sided tape. And it has a high-viscosity, high light transmittance More than 99%, anti-UV weathering resistance and other characteristics. It is the Most suitable glue for Lamination processing, it is mainly used for laminating parts which is in the range of 2 to 10-inch .

UV Glue,more and more people use it for lamination big size screen ,Such as the Samsung Series LCD screen which has no backlight , they all laminated withUV glue. But this is a kind of old
Technology,it had been replaced by OCA . Because UV transparent cannot reach the level of optics, there are many disadvantages , usually easy to be yellow, corrosion, erosion,etc. After using for a long time , then, the mobile phone will have more problems occurred . So this old technology had been replaced .

To summarize:
1, OCA optical adhesive characteristics, efficiency, fast, good rate, weather-resistant, high temperature resistant, non-yellowing characteristics,

2, UV glue, corrosive, yellow, easy to get into a backlight, and the length of time required UV curing.

OCA Lamination is attached by the OCA optical glue on the LCD, or a glass lens, then use OCA laminating machine for Full lamination processing. Although the devise for lamination is different with those process technicials , it is laminated by level and level,after that , after that , using Rolling movement of the pressure. Check Xiyo Technology Co. all of our Vacuum Laminating Machine is hard for soft lamination, so is
Avoid the stress of the screen, or else will be easy to burst the screen, so according to our old customers feedback , we designed newest laminating machine , it had been aprroved by our customers all over the world .

summary for the requirment of OCA
1, the screen cleanliness
2, the precise alignment of the liquid crystal cover
3, the control OCA bubbles
4, the pressure control

Important factors for influencing passed rare :
1, the smoothness, this is about the OCA vacuum laminating machine is associated;
2, stability and quality of OCA .normally choose Mitsubishi optical adhesive generally choose 200um thickness;
3, with the location to be aligned;
4, lamination speed should be uniform, average .
5, pressure and speed should be moderate .

Mishell Hu Sales, Shenzhen XiYong Technology Co., Ltd.