Question: how to connect wireless display in lg tv?
Answer: Press the SETTINGS button on your TV.
Press the ↑ or ↓ button to select NETWORK and press the OK button.
Press the ↑ , ↓ , ← or → button to select Wi-Fi Screen Share and then press the OK button.
Set Wi-Fi Screen Share to ON. ... 
Enable Wi-Fi Direct on the device that you want to connect to.