Japanese electronics manufacturer, JVC, is making significant advances in scaling down the projector technology needed to make the experimental broadcasting format called Super Hi-Vision practical for commercial use.

The technology - which would create higher-than-high-def television capabilities - creates 7,680 pixel by 4,320 pixel pictures that have 16-times the resolution of today's high-def TV and four times the resolution of a 4K digital cinema.

The set-up remains large and cumbersome, but JVC unveiled a new projector this week that contained all the capabilities in a model that is less than half the size and a quarter of the weight of previous incarnations.

The projector is still a device very much of the future and, weighing in at more than 50 kilogrammes, is a long way from being a common feature of home - and even professional - cinemas.

The scientists working with the technology at the laboratories of Japanese public broadcaster, NKH, in Tokyo have taken a significant step with the latest model, however. While previously the resolution could only be achieved through a set-up that required two projectors working in tandem, the new offering has compacted all the capabilities down into just one projector.

NKH has frequently been the pioneer in the development of visual media technology, first beginning working on developing HDTV way back in 1964. They have estimated that most of the pieces for a Super Hi-Vision television service will be in place by around 2020.