Display port for internal and external display connections, using a common interface. The internal display connections, including notebook computers within the display interface or the LCD screen within the display interface. External display connections include the interface between the original equipment (desktop computers, set-top boxes, DVD players or game consoles) and display devices (flat panel displays, projection displays). The display port standard also includes an optional digital sound transmission. 
 2.Display the port characteristics: 
 (1) architecture of the characteristics of transmission: 
 Display port is a very important feature of using the transmission architecture of the Micro - Packet Architecture (micro-packet architecture), video content packet transmission, this transmission technology with DVI, HDMI switching is a clear difference. 
 Compared with the switching transmission, a major feature of the micro-packet architecture is flexibility. Display the port can be easily split-screen display, Display port transmission Lane, in the same group / Link (channel / connection) video, and all this is micro-packet architecture gives the power. A video such as DVI, HDMI video switching transmission can only be transferred within a group Link. 
 (2) high-bandwidth: to be popular on the occasion of the high-definition video, high-bandwidth display interface is unable to gain a foothold. 
 (3) the maximum degree of integration with the equipment side: and HDMI, Display port also allows audio and video signals to share a line transmission support a variety of high-quality digital audio. 
 But more advanced than the HDMI, Display port can also achieve more functionality in one cable, Display port also provides a powerful auxiliary channel, in addition to the four main transmission channel. The Road of the auxiliary transmission bandwidth of 1 Mbps, the maximum delay of only 500μs can be used directly as voice, video and other low-bandwidth data transmission channel, the other can also be used without delay of game control. Display port to achieve the greatest degree of integration of peripherals and control. The connection between the prepared and equipment, Display port can also be used inside the device interface, or even a data interface between the chip and the chip. 
 For example, Display port on the "plot" to replace the LCD panel drive circuit board between the mainstream LCD interface LVDS (Low Voltage the Differential Signaling Low Voltage Differential Signaling) interface position. 
 (4) a high degree of scalability features: Although the Display port1.0 standard only supports one audio stream, but the Display port to a high degree of scalability features to make it a simultaneous transmission of multiple video or audio signal is not a difficult things. PIP, split screen functions for the Display port is a piece of cake ", a Display port Cable cables to a maximum 6 1080I or three 1080p video signal.