When you refurbish iphone or other LCDs, you will suffer this problem. After you moving the bubble, everything is perfect. But some hours past, the bubbles are in the screens again. Why?
There are some factors I share with you today.
First, maybe you are a new person in refurbishing LCD business, and your technology are not very skilled. Everything need practice. You need to do more excises. When you tear the membrane from the OCA film, please be careful, be soft for that.
Second, the quality of the OCA film. Please choose the best OCA in market, I suggest you buy the brand of Mitsubishi OCA. It is soft and easy to move the bubble. You can choose the 200nm, or 250nm OCA.
Third, when you put the top glass and LCD together, please do not use your hand press the glass or LCD. If you press, there may be a “dead bubble” and it could not be removed. You just can refurbish it again.
At last, the set-up of the removing bubble machine. The temperature is less than 50 centigrade degrees and the pressure is 0.6-0.7 Mpa.
That is all. If you are need to buy the top glass, OCA, polarizing film, the frame, please contact me. We are in Shenzhen, China. We can help you find everything about cellphone and other electronics products and parts.