https://qooah.com/2012/02/11/lg-%e7%a8%b1%e5%b0%87%e5%9c%a8-mwc-%e5%a4%a7%e6%9c%83%e4%b8%8a%e5%b1%95%e7%a4%ba%e9%9d%a9%e5%91%bd%e6%80%a7%e6%99%ba%e8%83%bd%e6%89%8b%e6%a9%9f/