Chosen Solution

The mobile phone parts manufacturer become more and more . we are worried with the quality. is it original ? This is a article said:“How to recognize the differences between OEM and Copy Iphone LCD” http://www.hcqs.cc/industry-news/industr… . is it reliable?

Yes that is reliable. In fact it has pretty good information. Another way is to use a flash light on the glass with the screen and compare the light reflection between original and fake screen. You will be able to tell the difference if you have two original screens and two fake screens.