DP and HDMI are commonly used video and audio transmission protocols, which support audio and video synchronous output. They can be used in computer, TV, projection display and other devices. DP and HDMI protocols have their own advantages, and different versions also catch up with each other in performance. In the last chapter, we popularized DP2 0 protocol standard, DP2 0 increases the transmission bandwidth to a new level, compared with the equally excellent hdmi2 1 video protocol, DP2 0 and hdmi2 Which is better? Below, we discuss DP2 from three aspects: physical interface, parameter standard and application advantages 0 and hdmi2 1 make a comparison.

1、 DP2 0 and hdmi2 1 Physical Interface

According to DP2 0 the management VESA Association announced that DP alt mode can be seamlessly connected with USB4 specification, DP2 0 physical interface can be transformed into a new USB type-C, hdmi2 1 is still a traditional HDMI interface, which depends on DP2 0 has more advantages, because type-C has been widely used in mobile internet terminal devices such as mobile phone, tablet, ultrabook, etc. with the characteristics of small volume and powerful function, and there is a great trend of unified peripheral interface. DP2. With the help of type-C profile, 0 protocol can not only save equipment interface space, but also realize the compatibility between different devices.

2、 DP2 0 and hdmi2 1 parameter standard

DP2. 0 protocol: DP2 0 with 80gbps bandwidth and support 16K@60Hz （15360*8460）、 8K@120Hz (7680 * 4320) and 4K@144Hz (3840 * 2160) resolution, support 3D imaging and 144hz dynamic HDR; hdmi2.1 protocol: hdmi2.1 bandwidth is 48Gbps, support 8K@60Hz and 4K@120Hz Resolution, supporting 3D imaging and 120Hz dynamic HDR; Parameter DP2 The performance of hdmi2.0 protocol is a little more powerful, and has entered a new level in terms of bandwidth, resolution and refresh rate 1. The performance is similar to that of DP2 Previous version of 0 DP1 4 relatively close.

3、 DP2 0 and hdmi2 1 application advantages

It can be found from the above two points that DP2 0 is superior to hdmi2 in terms of interface generality and performance parameters 1, and DP2 0 interface has an advantage for manufacturers, that is, it is free of authentication and authorization fee. However, the VESA association has not announced DP2 0, so there is no DP2 on the market 0 interface PC display device, DP2 0 can only be said to have great potential.

For hdmi2 1. The application environment accumulated by HDMI for many years has been very mature. It is widely used in computer mainframe, HD TV and projection imaging, and the supporting equipment is also very sound. This is hdmi2 1, and almost all network HD resources are available at this stage 4k@60 Configuration, 8K video resources are still rare, and 16K video resources are almost absent, so hdmi2 1 the protocol can fully meet the requirements, hdmi2 1 compare DP2 0 has obvious application advantages.