The LG G2 has the ability to share the contents of it’s screen with HD displays in 2 ways. The first is via the microUSB port on the bottom of the device and the other is using Miracast technology that shares the display wirelessly.
In the following video we show the G2 connected to a HD display using a SlimPort adapter. The SlimPort adapter is similar to an MHL cable, but different.
It connects to the microUSB port on the device and then you plug an HDMI cable into it. It is also advisable to connect a microUSB mains power supply to keep the device powered, although it is not essential.
Check out the video to see it in action.