This is a Layout icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,000 icons, all in the same style and quality.
Idea of Layout Icon by Hervé
We've received the idea on August 31, 2012 and created the icons on February 02, 2013
A widescreen TV with HD logo, a widescreen tv with SD logo, a widescreen TV with channel mosaic for a GPL program. No problems about the link ;-)