https://qooah.com/2012/11/09/%e4%bb%a5%e6%9f%94%e5%88%b6%e5%89%9b%ef%bc%8csamsung-%e6%bc%94%e7%a4%ba%e6%9f%94%e8%bb%9f%e6%80%a7%e9%80%8f%e6%98%8e%e7%9a%84-amoled-%e8%9e%a2%e5%b9%95/