MHL stands for Mobile High-definition Link, and it’s the brainchild of a group of companies—including Nokia, Samsung, Silicon Image, Sony and Toshiba—that wanted a specification that could be used to connect smart phones, tablets, and other devices to an HDTV.
MHL adds a few new tricks. One is that it sends control data through the same cable, so you can control the portable device using your TV’s remote. The other is that the cable provides power, so you won’t drain your portable device’s battery while the media is playing.
With MHL, you can unchain your media from your phone or tablet and easily display videos, games, photos and more on a big screen. It can be liberating and it’s all achievable with the help of just a single cable.
MHL carries a lot of potential from obvious uses like watching stored videos on a big screen to more inventive applications such as using it in combination with a keyboard and mouse to type documents, essentially turning your smartphone into a desktop computer in the process.