What They Say
The 8K Association’s Chris Chinnock published a look at the development of DisplayPort 2.0 which potentially is fast enough for up to 8K/120p, 16-bit, 4:4:4 transfers. The Association, quoting Craig Wiley of VESA and Parade Technologies, said that the original expectation was to have products in the market by the end of 2020, but this has been delayed by Covid. For example, a planned Plugfest has had to be cancelled after the arrival of the Delta variant. It seems likely that products will now appear in 2022.
The article discusses connectors and the development of USB 4.0. Parade is sampling converter chips (PS195 and PS196) that convert from DP2.0 to HDMI 2.1. They do not support the full 20Gbps per lane speed of DP 2.0 but are limited to 8.1 Gbps per lane. Still, the use of DSC allows 8K video at 60 frames per second using full 4:4:4 color resolution.
The conversion process can support the CEC backchannel for remote control operation, so the chip could be used in consumer video devices. There is no technical reason that it isn’t.
What We Think
The article is worth a look if you are involved in these different specifications. USB 4 over Type C looks like an interface combination that could even get outside just the PC business. (BR)
