Hello everyone, welcome to dark horse commune
Not long ago, Xiaomi launched an "e-sports display".
It is understood that xiaomi's e-sports monitor has a resolution of 1920×1080, supports a 240Hz refresh rate, GTG as low as 1ms, and has a DC dimming function and low blue light certification.
Most importantly, this display is also equipped with a DP 1.2 interface and two HDMI 2.1 interfaces, priced at 1599 yuan.
You think dark horse is here to advertise it? Miss by a mile.
Recently, some foreign media TFT Central has been on the millet due to the problem of "xiaomi display interface virtual standard".
Because Xiaomi labeled this monitor HDMI 2.1, however, it added a line of explanation in the * sign:
"Due to the breakdown of THE HDMI certification standard, HDMl 2.1 is divided into two protocols: TMDS (bandwidth equivalent to the original HDMI 2.0) and FRL. The PRODUCT's HDMI 2.1 interface supports the TMDS protocol with a maximum resolution of 1920×1080 and a maximum refresh rate of 240Hz. ”
So, it's on the table!
In TFT Central's view, the HDMI 2.1 of your display does not support the FRL protocol, which is an important part of achieving high refresh rates and high resolution. Holding the name of HDMI 2.1 actually gives HDMI 2.0 the function, why dare you say that you are an HDMI 2.1 interface.
Therefore, TFT Central contacted the authorization management of HDMI, and the answer given by the other party was: the HDMI 2.0 standard does not exist, and the manufacturer can no longer claim to meet the 2.0 standard, and should be uniformly changed to the 2.1 standard.
TFT Central: Meow Meow ???
After getting an official reply, TFT Central was also slightly shocked.
Because in this way, any display that uses the HDMI 2.0 interface can claim to be an HDMI 2.1 interface as long as it supports some HDMI 2.1 features.
To be honest, dark horses are also very confused. In this way, the HDMI Association will undoubtedly confuse the display standards on the market.
After all, the function is obviously HDMI 2.0, but the merchant can claim to be HDMI 2.1.
However, when consumers get their hands on it, they find that this thing is HDMI 2.0, at this time you find the business to want to theory, find that there is nothing wrong with the business promotion, and you can only spend HDMI 2.1 money to enjoy the functions of HDMI 2.0.
That's not outrageous!!!
(Differences in support functions of HDMI standards)
Speaking of which, Dark Horse is reminded of the very magical USB standard.
Starting with USB 3.0, USB 3.1 Gen1 and USB 3.1 Gen2 gradually appeared. Speaking of which, these two guys are also extremely confusing. Although USB 3.1 Gen1 and USB 3.1 Gen2 both belong to the USB 3.1 standard, the transfer rate of the two can be doubled.
In the future, there will be USB 3.2 Gen2x2, USB 3.2 Gen2, USB 3.2 Gen1... Forget it, destroy it!
The features supported by HDMI 2.1 and HDMI 2.0 are also very different.
Like TMDS, FRS protocols themselves are indeed fine, but the TMDS protocol is part of HDMI 2.0, and FRS is the necessary premise to achieve higher bandwidth of HDMI 2.1 (HDMI 2.0 transmission bandwidth is 18 Gbps, while HDMI 2.1 has 40 Gbps).
Why such a chaotic scene occurs, dark horse guesses that there are several reasons.
On the one hand, the new standard supports too few features.
For example, this year's iPhone 13 upgrade, in the eyes of many people, it should be called iPhone 12S. Considering that there are not many function upgrades, then it is obviously not appropriate to re-take a 3.0, so there is only 2.1, 2.2... The back of the extension...
Another aspect is the licensing fee.
If you want to use the HDMI interface, you have to pay an annual membership fee of $10,000 to the HDMI Association, and you also need to declare sales data every quarter and charge the corresponding licensing fee. Only by continuously upgrading and adding new features will the HDMI Association attract more businesses to join and make more money.
Therefore, why some interface protocols are so messy in naming, it may be the moths behind the association company.
Speaking of Xiaomi, Xiaomi's incident was confirmed to be a oolong, although it does not support all HDMI 2.1 features, but because it supports the compatibility features of HDMI 2.1, it is still called HDMI 2.1, which is no problem.
But this is the pain of consumers, and when you buy a monitor later, don't stare at whether the monitor interface is HDMI 2.0 or HDMI 2.1.
We need to look at the small print of the product detail page standard to see whether this HDMI 2.1 does not support FRS, the true HDMI 2.1 standard protocol.
Of course, you can also ask the store directly, your monitor, is it an HDMI 2.1 display that supports the FRS protocol or an HDMI 2.1 monitor that only supports the TMDS protocol. If it's the latter, then don't choose.
It's hard to make leeks