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Hi everyone, I’ve a question for everyone that refurbish LCDs as a living. When I refurbish iphone’s LCDs I always remove the polarizer to speed things up, I clean very well the LCD to make sure there’s no dust or streaks on it and then I apply a new polarizer film. When I test the phone everything works great except for the fact that 9 times out of 10 I see very small white dots on the screen (you see ’em very well when you have a black image to see). I read on the internet that small particles of dust “block” the light coming from the backlight and so you see a white dot (the same you’ll see with no polarizer on the LCD but much smaller of course). Now the question is: is there a way to avoid having this issue? I know in China sell a dust free room to laminate polarizer and OCA films on the LCDs but I think paying more than 500USD for a simple metal bench with a fan spinning with a tent surrounding you is a ripoff. Any suggestions? Using compressed air did not help. Thanks in advance Roberto
Refurbishing lcds must always be done in a ‘clean room’ what I mean by this is a room built to a specific requirement that doesn’t contain dust, microfibres etc. These small dust free rooms are a good start and definitely helps compared to doing it in a normal room, doesn’t matter how much you clean, there will always be dust and fibres in the air unless you have a clean room or portable clean room. Till you do this, you won’t be able to refurbish without dust under your screens. :-)
