VESA publishes Embedded DisplayPort 1.4a standard that supports 8K displays

DisplayPort logoVESA, the standards body responsible for such luminary technologies as DisplayPort and the omnipresent VESA monitor mount, has published the specification for version 1.4a of Embedded DisplayPort (eDP). The new standard builds upon DisplayPort 1.3, which was published at the end of 2014. In short, eDP 1.4a allows for laptops, smartphones, tablets, and all-in-ones with 8K displays (7680×4320) or high-frequency (120Hz) 4K displays—but it includes a few other neat features, too.

eDP 1.4a appears to be almost entirely based on DisplayPort 1.3—which was published in September 2014—with a couple of new features thrown in for good measure. eDP 1.4a specifies four high-speed (HBR3) lanes between the graphics adapter and display, with each lane capable of 8.1Gbps; the lanes can either be used individually, in pairs (more on that later), or all together for a total theoretical bandwidth of 32.4Gbps. That's enough bandwidth to drive a 4K display (3840×2160) at 120Hz with 10-bit color or an 8K display at 60Hz.

Beyond higher bandwidth, one of the more interesting features of eDP 1.4a is Display Stream Compression (DSC), a standard developed by VESA and MIPI that—as the name implies—compresses the output video signal. According to VESA, the compression is "visually lossless" (i.e., it is lossy, but your games won't suddenly look like a hand-me-down JPEG). VESA and MIPI say that DSC can reduce the component cost and power consumption of high-resolution displays—a claim that obviously needs to be confirmed once eDP 1.4a devices start shipping.

VESA publishes Embedded DisplayPort 1.4a standard that supports 8K displays

Gamers will be happy to hear that eDP 1.4a also includes (optional) support for Adaptive Sync, which can reduce screen tearing and graphics stutter—both of which are generally caused by the display and computer falling out of synchronization (which can occur for a variety of reasons). Because Adaptive Sync is an optional feature of eDP 1.4a, it might only be available on more premium devices. The other notable new feature in eDP 1.4a is Multi-SST Operation (MSO), which lets each of the four lanes drive a portion of a segmented display.

The eDP 1.4a standard is available to VESA members today, and the first devices that use the standard are expected in 2016. (Devices with the previous standard, eDP 1.4, are only now starting to ship.) While I have no doubt that we'll see plenty of smartphones and laptops with 4K displays by 2016, 8K might be a bit of a stretch. It's important to note that eDP is just one part of the equation—we also need displays and GPUs that can handle the massive computational and bandwidth requirements of 8K graphics.

Source: Ars Technica

Tags: 8K, DisplayPort

Comments
Add comment

Your name:
Sign in with:
or
Your comment:


Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party


Last news

 
Consumer group recommends iPhone 8 over anniversary model
 
LTE connections wherever you go and instant waking should come to regular PCs, too
 
That fiction is slowly becoming a reality
 
The Snapdragon 845 octa-core SoC includes the Snapdragon X20 LTE modem
 
Human moderators can help make YouTube a safer place for everyone
 
Google says Progressive Web Apps are the future of app-like webpages
 
All 2018 models to sport the 'notch'
 
The biggest exchange in South Korea, where the BTC/KRW pair is at $14,700 now
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 /
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /
 
 

News Archive

 
 
SuMoTuWeThFrSa
     12
3456789
10111213141516
17181920212223
24252627282930
31      




Poll

Do you use microSD card with your phone?
or leave your own version in comments (4)