Friday, September 12, 2014

Whither 4K television – ABC.es



The field of image scanned with ultra high resolutions but the market

Times change. And the world of technology will more and more, more and more. No respite for innovation, the market lost to chisel no new products in stores. Sometimes consumers, it is true, are absorbed but sometimes can lead to some confusion. Better keep the device I have at home ? Buy a new one?

The Ultra HD is gathering strength. He seemed destined to panels with the new TV models are manufactured, but the picture quality has been important in terms of mobility, where we already see proposals that reach many lines and capable of record video on this definition .

The image quality is 4K, whose name contains a horizontal resolution of around 4000 pixels and represents up to four times that of Full HD. The vertical proportion varies depending on the product, and it is recalled that in regards to displays, what matters is the density of the pixels.

Most TV manufacturers (such as Samsung, LG, Panasonic, Philips and Sony ) and working for almost two years in 4K models. His fight is to show the reliability and great experience of this type of display. But the road continues and engineers and developers working in higher image quality.

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During the last edition of the IFA technology fair in Berlin, which was held last week in Berlin, LG went further to unveil a prototype TV 8K , which has up to 16 times more resolution than an HD. That is, 7,680 x 4,329 pixels.

And all, even though the Ultra HD has not yet penetrated into the average home (have sold twice TVs with this quality than last year ). But technology companies push their products to unexpected resolutions, which will take years to achieve an adequate level of sales.

That great challenge facing 4K display screens leads to one of the potential pitfalls for greater market acceptance. The technology exists, yes, but the broadcast quality of broadcasters still far from the qualities offered by the product in question, ie the TV. Currently there is only one channel UHD ( TVE-4K ), which is issued only in Spain in the cable operator Canal + and various 4K tests TDT (DTT 2 compression format HEVC ).

The lack of content is palpable and one of the main brakes on its popularization. What these TVs is scaling the image they receive, whereby if less than that borne the image will not be as expected . This, coupled with high prices (over 1,500 euros), has not yet have a mass consumption. “Watching TV [this quality UHD] we face l problem of bandwidth available to transmit signals . The more quality information you need to send more bandwidth is required. The current radio spectrum is limited, “explains Luis Navarrete , product specialist consumer electronics LG Electronics.

is the snake that biting its tail. Manufacturers should provide higher resolution devices but broadcasters (channels) must also broadcast in higher quality. “When a person on the TV he wants to basically watch TV, even if playback devices that support quality 4K buys” he stresses.

That’s where the value chain is breaks. The “idiot box”, which ever is less silly thanks to new functions implemented thanks to internet services , the content provider and broadcasters have to adapt to, at some point, that Increasing resolution skip the couch at home. “Watching TV today no emissions 4K. Yet another way to view content is through streaming from platforms as Wuaki or Netflix “qualifies.

In his view, no devices, no content. “The only problem is the dissemination of the contents, but begins to be through streaming solutions because, for now, satellite and DTT there is that possibility,” says this expert, who predicts that where going to arrive before the 4K content distribution “will be through the Internet.”

In fact, it was thanks to connect to the network when the current TV has gone from being a screen where images appear to be a machine to entertain, with interesting and useful services, public browse the internet, share comments on social networks, controlled by voice and gestures. A catalog of opportunities that promise a great visual experience. Like looking out the window, say the manufacturers.

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