What does the dp interface look like?

The DP interface is a digital video interface developed by the PC and Chip Manufacturers Alliance and standardized by VESA (Video Electronics Standards Association). The DP interface does not require certification or payment of authorization fees. It is mainly used to connect devices such as video sources and displays. It also supports the transmission of audio, USB and other data. There are two types of DP interfaces: standard DP interface and Mini DP interface. However, because the shapes of the interfaces are different, the two cannot be used universally. Only by using the corresponding DP cable can the correct connection to the display device be achieved.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

What is the DP interface?

DP is a digital interface that can transmit audio and video at the same time like the HDMI interface. However, unlike the HDMI interface, the DP interface is free of certification and license fees. The full name of DP is DisplayPort. It is a digital video interface developed by the PC and Chip Manufacturers Alliance and set by the Video Electronics Standards Association (VESA). It is mainly used to connect video sources and monitors and other equipment, and supports the portability of audio, USB and Other forms of data.

# As the successor of DVI, the DP interface can also be simply understood as an enhanced version of HDMI. It transmits video signals while adding support for high-definition audio signal transmission, while supporting higher resolutions and refresh rates. For data transmission, DP uses a "micro-packetised" format and is highly scalable, allowing more new content to be added in the future.

What does the DP interface look like?

Common DP interfaces include standard DP interface and Mini DP interface. The full name of the Mini DP interface is Mini DisplayPort, which was announced by Apple on October 14, 2008; it is used in MacBook (replacing the previous Mini-DVI), MacBook Air (replacing the previous Micro-DVI) and MacBook Pro (replacing the previous DVI) notebook computer.

When using it, be sure to distinguish which DP interface your device supports. Although both are DP interfaces, because the shapes of the interfaces are different, the wires of the standard DP interface and the Mini DP interface cables are not universal. Only by using the corresponding DP cable can you correctly connect to the display device

DP version development

1.1 Bandwidth 10.8Gbps, supports up to 2560*1600 (2K) resolution (basically eliminated)

1.2 Bandwidth 21.6Gbps, supports up to 4K (4096*2160) 60Hz ( Most commonly used)

1.3 Bandwidth 32.4Gbps, supports up to 4K (3840X2160) 120hz, 5K (5120X2880) 60hz, 8K (7680X4320) 30hz output.

1.4 Bandwidth 32.4Gbps, supports up to 8K level (7680x4320) 60Hz output, and 4K can go up to 120Hz. (Latest version)

What is the DP interface used for?

The DP interface is the first display communication to rely on packetized data transmission technology Ports can be used for both internal display connections and external display connections. The DisplayPort protocol is based on small data packets (called micro-messages) that can embed timer signals in the data stream, using a smaller number of pins to achieve higher resolution.

If your monitor supports DP 1.2 Daisy-chaining, and your DP interface is also version 1.2 and supports MST (Multi-Stream Transport), then you can use a single DP to connect to multiple Monitor

Extended knowledge: The difference between video DP interface and HDMI interface

1. Differences in technical support:

AMD multi-screen splicing technology must DisplayPort interface. Users need to connect to a display device that supports this interface through a DisplayPort data cable to become the main display of a three-screen spliced ​​display. The display must be directly connected to the DisplayPort interface without any form of conversion.

2. Differences in bandwidth support:

In terms of performance, the performance of HDMI 2.1 is very close to that of DP1.4, but HDMI 2.1 has poor performance in terms of bandwidth, data rate, resolution, and refresh rate. It surpasses DP 1.4 and supports more video specifications than DP. However, if HDMI 2.1 is not fully popularized, you can use the DP interface.

3. Differences in production costs among manufacturers:

DP interface technology is free. Unlike the HDMI interface, the DisplayPort interface does not require a certain amount of membership fee to be paid every year, nor does it need to be paid like the HDMI interface. Every product containing an HDMI interface requires payment, and it is truly royalty-free. Therefore, the DisplayPort interface has received strong support from many internationally renowned manufacturers.

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