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This article mainly introduces how to distinguish between hdmi2.0 and 1.4. in daily operation, I believe many people have doubts about how to distinguish between hdmi2.0 and 1.4. the editor has consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful for you to answer the doubts about how to distinguish hdmi2.0 and 1.4s. Next, please follow the editor to study!

Hdmi2.0 and 1.4are indistinguishable only from their appearance. Usually, when purchasing equipment with this interface, the technical specifications will be indicated in the instruction manual. In addition, conditional users can also tell whether they can smoothly play 4K feeds. Hdmi2.0 can perfectly support it, while hdmi1.4 will stutter or blacken the screen.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

Hdmi2.0 and 1.4are indistinguishable only from their appearance. Usually, when purchasing equipment with this interface, the technical specifications will be indicated in the instruction manual. In addition, conditional users can also tell whether they can smoothly play 4K feeds. Hdmi2.0 can perfectly support it, while hdmi1.4 will stutter or blacken the screen.

Because the appearance of HDMI2.0 is the same as that of 1.4 interface, and there is no obvious mark on the interface and data cable, the interface specification can not be distinguished directly by appearance.

However, usually when purchasing the equipment with this interface, the technical specifications will be indicated in the instruction manual. You can also go to the manufacturer's official website to inquire about the relevant technical information according to the brand model of the equipment.

Because the HDMI2.0 version interface standard is backward compatible with the 1.4 version interface, so the interface shape and electrode definition are completely consistent, and it is impossible for the naked eye to judge which specification. Of course, it is more convenient to ask the merchant directly.

Conditional users can also check by themselves, use 4K monitor to play 4K source, if it can play normally and smoothly, then it is HDMI2.0 or above specification interface, if there is black screen, blurred screen, picture tearing phenomenon, it means that the HDMI interface bandwidth is not enough, that is, 1.4 or below.

Extended data:

HDMI is designed to replace older analog audio and video transmission interfaces such as SCART or RCA. It supports a variety of TV and computer video formats, including SDTV and HDTV video pictures, plus multi-channel digital audio. Both HDMI and UDI without audio transmission function inherit TMDS, the core technology of DVI, which is still an extension of DVI in essence. The video content of DVI, HDMI and UDI is transmitted in real-time and direct connect mode, which can ensure that congestion will not occur when the video traffic is large. The amount of data per pixel is 24 bits. The timing of the signal is very similar to that of VGA. The picture is sent line by line, and a specific blank time (similar to analog scan line) is added after each line and each picture is sent, and the data is not "Micro-Packet Architecture", nor will it only update the part of the picture changed before and after the two frames. Each picture will be completely re-sent when it is updated. The specification was initially developed with a maximum pixel transmission rate of 165Mpx/sec, sufficient to support 60 pictures per second with 1080p quality, or UXGA resolution (1600x1200), and was later expanded to 340Mpx/ seconds in the HDMI 1.3 specification to match possible future requirements.

At the beginning, DisplayPort is developed for LCD, using "Micro-Packet Architecture (Micro data packet Architecture)" transmission architecture, and video content is transmitted in the form of data packets, which is obviously different from video transmission technologies such as DVI and HDMI. In other words, the emergence of HDMI replaces analog signal video, while the emergence of DisplayPort replaces the interface of DVI and VGA.

HDMI also supports uncompressed 8-channel digital audio transmission (sample rate 192kHz, data length 24bits/sample), as well as any compressed audio stream such as Dolby Digital or DTS, as well as 8-channel 1bit DSD signals used by SACD. In the HDMI 1.3 specification, support for uncompressed audio streams with ultra-high data volume, such as Dolby TrueHD and DTS-HD, is added.

The standard Type A HDMI connector has 19 pins, and another Type B connector that supports higher resolution is defined, but no manufacturer uses the Type B connector. The Type B connector has 29 pins, allowing it to send extended video channels to meet future high-definition requirements, such as WQSXGA (3200x2048).

Type A HDMI is backward compatible with the Single-linkDVI-D or DVI-I interface used by most monitors and graphics cards (but does not support DVI-A), which means that the signal source using the DVI-D interface can drive the HDMI display through the conversion line, but this conversion scheme does not support audio transmission and remote control. In addition, DVI displays without HDCP certification will not be able to watch video data output from HDMI with HDCP encryption protection (all HDMI displays support HDCP, but most DVI displays do not support HDCP), and Type B HDMI connectors will also be backward compatible with Dual-link DVI interfaces.

The sponsors of HDMI include major consumer electronics manufacturers, such as Hitachi, Panasonic, Quasar, Philips, Sony, Thomson RCA, Toshiba, Silicon Image. Digital content Protection Company (Digital Content Protection, LLC) provides anti-copy protection technology related to HDMI interface. In addition, HDMI is supported by major film production companies such as 20th Century Fox, Warner Brothers, Disney, major consumer electronics manufacturers, including Samsung Electronics, and a number of cable TV system operators.

At this point, the study on "how to distinguish between hdmi2.0 and 1.4" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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