Lenovo ThinkVision LT3053p 30in LCD Monitor - Manual (Page 13)

Chapter 1.
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6. Connect one end of the MHL cable to the monitor MHL port and the other end to the
mobile phone. MHL(Mobile-High-Definition Link) is an audio/video interface for directly
connecting mobile phones and other portable consumer electronic devices to high-
definition displays. This allows user to make the viewing of the connected device on the
monitor screen while charging it simultaneously.
7. Connect one end of the HDMI cable to the monitor HDMI port and the other end to the
computer if it has HDMI output terminal.