Today, I will bring you the definition and difference between DP interface and HDMI interface, and why the DP interface is not as popular as the HDMI interface.

1. DP interface & HDMI interface

HDMI interface: High Definition Multimedia Interface (High Definition Multimedia Inte**ce), high data transmission speed of 5Gbps, can transmit uncompressed high-definition video and multi-channel audio data with high quality, the advantage of HDMI interface is that only one HDMI cable is needed. Video and audio signals can be transmitted at the same time, without digital/analog or analog/digital conversion before signal transmission, which can ensure high-quality audio and video signal transmission.

DP interface: DisplayPort is a high-definition digital display interface standard that can be connected to computers and monitors, as well as computers and home theaters. As the successor to DVI, DisplayPort will add support for high-definition audio signal transmission while transmitting video signals, while supporting higher resolutions and refresh rates. For data transfer, DisplayPort uses a "micro-packetised" format. At the same time DisplayPort has a high degree of scalability, can continue to add more new content in the future.

Through a brief introduction, it can be seen that the DP interface and the HDMI interface have the following differences:

Advantages of HDMI interface:

①There are many types of devices that support HDMI interface

In terms of popularity, it can be said that the HDMI interface has an absolute advantage. In daily life, the HDMI interface is obviously more than the DP interface, which dominates most of the display devices such as TVs and projectors. In addition, the current well-known game console platforms all use the HDMI interface as the line transmission path.

The DP interface is only popular in the PC field and high-end monitors.

② A must-have quick connection method for gamers

Of course, for gamers, the HDMI interface is also an item they pay attention to. Because the interface of the current PS3 or xbox and other game consoles all use the HDMI interface as the signal output. And the huge bandwidth of the HDMI interface is enough to transmit 1080p resolution video signals and audio signals. Compared with the original game platform that needs to connect more lines, the game platform that supports HDMI transmission only needs one line for easy connection.

DP interface advantages:

① AMD multi-screen splicing technology must have DisplayPort interface

In the graphics card, AMD supports AMD's newly released multi-screen splicing display technology. Taking three-screen splicing as an example, AMD's HD5000 series graphics cards are designed with a DisplayPort interface. Users need to connect to a display device that supports this interface through a DisplayPort data cable to become the main monitor for three-screen splicing display, and the DisplayPort interface must be directly connected. The connection cannot go through any form of transformation. Therefore, for display enthusiasts, their demand for LCD monitors that can support the DisplayPort interface is gradually increasing.

② Free, this is also important

Unlike the HDMI interface, the new DisplayPort interface needs to pay a certain amount of membership fee every year, and it does not have to pay for every product containing an HDMI interface like the HDMI interface. It is completely royalty-free in the true sense. Therefore, the DisplayPort interface has received strong support from many well-known international manufacturers.

Why is the DP interface less popular than the HDMI interface?

1. A new interface needs to be jointly promoted by graphics card manufacturers and display terminal manufacturers before it can be popularized. Judging from the current market situation, many graphics card devices already have DP interfaces, but there are not enough display terminal devices with DP interfaces;

2. Equipment manufacturers are not actively promoting DP. HDMI has been popularized on a large scale in recent years, and the effect is very good. Therefore, for equipment manufacturers, there is no need for one more homogeneous interface;

3. In terms of cost, the cost of HDMI is about 0.11 US dollars, while the cost of DP is as high as 0.5-1 US dollars, so in terms of price, the DP cable is also more expensive than the HDMI high-definition cable;

4. Although the DP1.4 version in 2015 supports 8K, and HDMI2.1 can support 8K or more, but the high-definition equipment at that time was not popular, and the number was not large. low HDMI;

5. The HDMI standard is updated very quickly, 1.3, 1.4, 2.0, 2.1, the new standard has been supported to 8K, even 10K

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