https://blog.wongcw.com/2020/11/09/lg%e6%89%bf%e8%aa%8doled%e9%9b%bb%e8%a6%96%e4%bd%8e%e6%96%bc120hz%e7%9a%84%e5%8f%af%e8%ae%8a%e5%88%b7%e6%96%b0%e7%8e%87%e6%99%82%e6%9c%83%e5%87%ba%e7%8f%be%e5%95%8f%e9%a1%8c/