Shall we pursue the HDMI 2.0 and HDCP 2.2 now?
4 Jan. 2016
Last year, people are stilling asking why do we need the 4K, and does 4K really make difference. In New Year 2016, we may need to be asked, if yes, when shall we need it?
Of course, before we are talking about “when”, we need to refresh our mind to address “why” firstly.
What’s the main difference between HDMI2.0 and HDMI 1.x. ?
(we talk about more video aspect than audio/control in this article).
1. More pixel, up to 4K@60Hz / 8 million pixels than 4 million
2. Date rates increased to 18Gps, than 10.2Gbps
3. 10 bit / 12bit for 70 billion color than 8-bit for 16.7 million colors
4. Last important thing, HDCP2.2
See more at bellow chart
The first three reasons are all related to “More Pixels”. Generally speaking, more pixels means more information, sharper picture, and more fun. It’s good than less, definitely.
But, the question is does these pixels really make big difference for eyes?
1. PPI is the retina judgement index number.
2. Same size screen, 4K offers twice clearer
3. Same size screen, 4K offers twice closer distance
See the more detail as chart bellow
Do we need these differences? Or is it helpful in real applications?
Let’s penetrate into what’s the meanings/values on the above numbers.
1. 28” screen is normally the smallest TV or the right size of PC monitor. The best viewing distance is around 0.6m. Thus, we could see a solid clearness and twice information on UHD screen compared with the 1080P HD screen.
2. 55” or 65” is the currently very popular large-size TV screen. Normally, the viewing distance would be around 2m or less. If we use it on commercial market, like huddle room, conference table, collaboration table, we may see more than twice pixel difference.
3. 84” or 98” screen is the larger sized TV or even 4K projector’s screen size, normally the viewing distance could be a wider range for difference applications, like shorter in collaboration room, board room, but further in lectern, classroom etc.Thus, we can see a summary as in this chart
And, how about the HDCP2.2 values?
HDCP2.2 is a new version of High-bandwidth Digital Content Protection, to protect the 4K content, similar to HDMI1.4. But the big difference is it requires every device in your video chain must have HDCP 2.2.
The problem we've seen is that people are assuming that anything with HDMI 2.0 will have HDCP 2.2. So far, that has not been the case. Most HDMI 2.0 devices on the market don’t support the HDCP2.2. If the display does NOT show HDCP 2.2 compatibility, when native 4k content arrives, your display will not accept it.
The native 4K content means the next generation blue-ray players, set-box, cableTV, which was announced to be captured/made with HDCP2.2 inside the content. Thus, if we want to watch them in near future, we’d better to be sure, all the devices support HDCP2.2.
Thus, should we move forward to HDMI2.0 ?
Oh my big yes. We’ll definitely go there finally, and even bigger 8K maybe, like we jumped from 720p to 1080P in the last few years.
Why we highlight HDMI2.0 ?
HDMI2.0 is a drawing industry standard for guiding the whole industry vendors to design/produce the source devices, signal distribution devices and the displays to be coordinating with this standard, in order to work compatible with each other.
Thus, shall we pursue it now?
This seems like a chicken and egg question. Anyway, to try to answer this question, we’d better to looking backward to the history when the two big shifts happened, 1st is Analog sunset (2011-2012), 2nd is Full-HD change. The 1st change is driven by a globally government regulation from the TV broadcasting digitalization. It seems policy is the drive push, but look deeper, the direct trigger is the source content digitalization. The 2nd change (2012-2014) happened without any government power, but driven by market need, which is caused by the big different experience when full-HD is compared with HD, or SD. If we see the lasting period of these two change, it’s almost the same two years’ time.
We think, the big shift can only happen under these conditions are ready as
1. Technology threshold: Solid, reliable and affordable chipset to handle the super-high speed for 4K processing, distributing etc.
2. Need recognition: Remarkable better performance and enjoyment experience to the user, or productivity improvement.
3. Renewal power: Content push, i.e. the 4K camera or any image/video capture devices, smartphone, tablets, and even 4K games, anything making or recording video are ready.
Thus, to understand the relationship of the three conditions, we could use the chart below. “4K technology cost” or full-HD technology cost is the industrial average purchasing cost for end-user. “4K need recognition” is the expected acceptable payment for 4K technology. “Purchasing Level” is the social average purchasing level for any certain AV devices, or the social average profitable level. “Produce discontinue level’ is none profitable level for manufacturer’s production. “R&D discontinue point’ is the point where R&D will stop investing or developing on certain product line. Two arrow is the push variable to lift the “4K Need recognition”
We could see the tendency of the two line “4K technology cost” and the “4K Need recognition” will finally cross, and maybe in 2016. We can’t say exactly where exactly it is, but just can speculate the tendency more closely.
And, we can’t forget the power of the two big arrow, especially the bigger one “4K content push”. It will give the last straw, because when the movie, games, camera are 4K, there is no reason we still have the full-HD devices in-house.
If you want to see which camera are already 4K, you can see the “List of 4K video recording devices” at this link https://en.wikipedia.org/wiki/List_of_4K_video_recording_devices
So shall I wait or buy a HDMI2.0 set?
It depends. For end-user, if you’re making decision to buy a new proAV devices, you can get it right now and don’t mind paying a premium for it.
If you're buying from one of the top tier manufacturers, you're going to get a good product that's reasonably future-proofed. As we said before, the sets look great. For manufacturer, if you’re still strive to increase the sales of full-HD or are still polishing your full-HD devices to be a good stand for its price, please stop it and embrace the new HDMI2.0 technology now for your future.
On the other hand, if you're price sensitive or want to wait until the content side of the equation is a bit more solved, it absolutely makes sense to wait. You're not missing out on much at the moment. There are incredible values to be found in generously-sized 1080p sets right now. And HDMI2.0 sets are only going to get cheaper very soon.
What HDMI2.0/HDCP2.2 sets / solution we could offer?
We offer a globally-first HDMI2.0 scaler switcher with PIP/PBP ability MS521, to accept 1xHDMI2.0 (HDCP2.2), 2xHDMI1.4a, 1xDP1.2a and 1xVGA, to be scaled up to 1xHDMI2.0 (HDCP2.2) maximum 4K@60Hz. With Grastron’s unparralled 2.0Dualwindow tech, it can show a PIP/PBP layout and independently select any source on any window for watching two different format, resolution source simultaneously. It has two independent HDMI2.0 elite scaling engineer, to guarantee the highest image quality processing, for enjoyment, entertainment application, co-working with any kinds of 4K sets.
If you want to see more 4K devices, please click here.
Released by Grastron Product Team