With new big-screen high-definition TVs - the so-called "4K" TVs - likely to hit the stores later this year, Sony has recently revealed that it intends launching a 4K TV set for the US market by December.

According to a Wednesday announcement by Sony, it will venture into the new 4K TV arena later this year, with its Bravia 84-inch XBR-X900 4K LED TV. Boasting four-fold higher resolution than the presently-available TVs, the massive 84-inch screen of Sony's 4K TV set will make the screen area four times bigger than the regular 42-inch TV.

The Bravia 84-inch XBR-X900 4K LED TV will be the biggest TV from Sony, and will be equipped with 10 built-in speakers. The 4K TV will also be capable of delivering 3-D video, which the users will be able to view with the help of affordable and light passive 3-D glasses.

However, with there being not much currently-available content to allow the consumers to benefit from the high resolution of Sony's forthcoming 4K TV, a little work and some technical expertise can help connect a computer to the set, for displaying video in the ultra-HD 4K resolution.

Pointing out that the 4K label of the big-screen TVs - like Sony's Bravia XBR-X900 4K LED TV - results from the approximately 4,000 pixels of horizontal 3840x2160 resolution, or over 8 million pixels in all, Sony Electronics' COO Phil Molyneux said that 4K unfolds pristine video, even on huge screens, and added: "The quality, the depth and color of the picture, it really is amazing."