BenQ HT4050 - HDMI Connection Guide; Connecting HDMI Sources

Connection 21
HDMI connection
HDMI (High-Definition Multimedia Interface) supports uncompressed video data
transmission between compatible devices like DTV tuners, DVD players, Blu-ray players
and displays over a single cable. You should use an HDMI cable when making a connection
between the projector and HDMI devices.
3
Notebook or desktop
computer
A/V device
HDMI cable