HDMI (High Definition Multimedia Interface) is an all-digital video and sound transmission interface, which can transmit uncompressed audio and video signals. HDMI can be used in set-top boxes, DVD players, personal computers, televisions, game consoles, integrated amplifiers, digital stereos and televisions. HDMI can send audio and video signals at the same time. Because the audio and video signals use the same line, the installation difficulty of the system line is greatly simplified.