If you have been following the television industry lately, 4K TV is a trend that manufacturers have been pressing for since 2012.Also widely known as UHD(ultra high-definition) or also Ultra HD, 4K TV is the next level in flat screen display resolution, offering up to 4 times pixel resolution of an ordinary 1080p HDTV.
4K technically refers to the 4096 by 2160 digital cinema technology resolution, while 3840×2160 should be classified as Ultra HD, however the term “4K” is much more catchier-most TV manufacturers have relied on using the term so as to market their ultra HD designs regardless of whether their native display resolution is just 3840×2160.Recently there have been opinions from certain camps and individuals like video expert Joe Kane to use the name “2160p”, which is the most accurate description.
The standard for Ultra HDTV has been stipulated by the ITU(International Telecommunications Union),the institution responsible for laying out such standards across the globe, under their Rec.2020 indenture to not only be able to deliver high resolution but also include a wider color spectrum, higher frame rates and greater bit-depth.However,restrictions on display technologies clearly mean that most, if not all, 4K TVs available in the market today are still utilizing the Rec.709 color space standard.
4K TV Features.
The HDMI 2.0
Whilst the first generation of UHD (Ultra High Definition) televisions supported only 3840×2160 resolution of up to 30Hz or the 4096×2160 resolution up to 24Hz as limited by the HDMI 1.4a standard, the coming of HDMI 2.0 in the year 2013 has facilitated 4K resolution at relatively higher frame rates of 50p and 60p.These rates are notably useful for rapid, action-packed television broadcasts, like for instance live sports broadcasts.
Due to high pixel density and potentially greater bit-depth and also Chroma resolution, file sizes of the 4K videos are expected to be large, making it difficult to store, manage or transmit. In order to solve this issue, the h.265 or rather HVEC (High-Efficiency Video Codec) has been designed to make the size of files much smaller and even more manageable, providing similar undistorted image quality with compressions that are twice as efficient.
Native 4K TV content remains to be very thin on ground. While individuals that own Sony 4K and Samsung UHD televisions in USA have access to private content in the form of Samsung’s UHD video pack and Sony’s 4K Media player, the choices that are available to European users are so limited of which Netflix 4K is the most easily accessible.
This is the most recent version of High-Bandwidth Digital Content Protection (HDCP) Scheme that has been developed to foil unauthorized copying of any digital AV content across devices that are connected. While at the moment there is no consumer content that is encrypted by HDCP 2.2 standard, we anticipate 4K Blu-ray to be able to use it.
Excellent List of the Best 4k TV of 2015
This particular second-generation UHD television by the Japanese manufacturers provides crystal clear images we have ever experienced on an LCD-based display, majorly due to its capability to preserve color saturation in dark scenes owing this factor to Panasonic Studio Master Drive Technology.
This great 2014 upgrade to the critically-acclaimed Sony Bravia X9 series is one of the many excellent TVs from the brand that is capable of handling all kinds of content, ranging from Blu-ray movies and also HD broadcasts to live video games and sports programmes.
This is not even the highest-end UHD TV by the Korean manufacturers, but however by virtue of its great flat panel, its screen uniformity is much better than the HU8500 model. The video processing and upscaling capabilities of the model are top-notch. The series of calibration controls are quite comprehensive, enabling the greyscale and the colors blend in accurately.