https://blog.wongcw.com/2019/07/27/iphone12%e6%a6%82%e5%bf%b5%e5%9c%96%ef%bc%9a%e5%9b%9b%e9%8f%a1%e9%a0%ad%ef%bc%8b120hz%e8%9e%a2%e5%b9%95-%e6%9a%b4%e9%9c%b2%e6%9c%80%e5%a4%a7%e7%bc%ba%e9%bb%9e/