这个，真的不想再多强调了，但是总是有人在各种地方说必须要贴膜，不然很容易花云云。
iphone的屏幕是光学玻璃，还做过强化处理，和一般电话的塑料屏幕是不一样的。我的iphone用了快一年了，后壳已经花的像砖头了，屏幕几乎跟新的一样。
推荐别再贴膜了，尤其是3gs用户，3gs用的是防油污的玻璃。。。
这里有一些资料。
Often, I read many are concerned that the iPhone's screen may be easily scratched. It's understandable, it's an investment, and many still remember the original nano issue. If you looked at it too hard, it scratched.
I remember reading however (I don't have the link) that Apple had applied for a patent on using a ceramic/polymer(?) media to use in the manufacturing of a communication device.
Several years ago, I made a suggestion on Apple's web site that they consider using a ceramic material for their ipods. The same material used in Rado watches. I own a Rado watch. They are beautiful and nearly impossible to scratch. It is diamond hard. The only way to scratch it is dragging it against corborundum or something harder.
I was wondering if anyone has any information on what substance the screen is made of. If Apple did use this substance for the screen, rest assured, it will be extremely durable.
