Beyond HD
Video technology keeps evolving. We have seen the birth of 4K technology in the last few years and now we will be coming across 8K video technology which is also coming along nicely.
4K images and video content are 8.3 megapixels in size per frame so will require a fast media delivery mechanism. At present only few sources are available.
In order to cut down on the size of the transmitions, compression and de-compression is used (called CODECS) to deliver and rebuild the images. HEVC and VP9 are two such CODECS. You will need approx 25mB/s to receive these type of transmissions.
4K TVs
There is now a multitude of 4K TVs but not all of them will work with Netflix. Check out the technical spec before you buy. Also you will need a about 15-30mbs to stream the content. The content would need far more bandwidth but with the help of some compression and decompression we can cut the size a great deal. Read about codecs.
CODECS
What is a "Codec" "compressor/decompressor" A codec is a piece of software that can compress and decompresses media files. Codec programs are required for your media player to play any media that is compressed. This also applies to many devices for example TV sets, DVD players, tablets and mobile phones that play compressed meia. The most commonly known CODEC is MP3. Without this compression media files can be very large.
VP9 is a video codec that can compress video files to half the size that the current encoding technology, called MPEG-4 or H.264, can achieve. More importantly, it will be used to compress video files and streams at 4K resolution, which is four times higher than HDTV resolution. VP9 is part of WebM, an open-source project sponsored by Google for creating technology for use with media on the Internet. Google has announced plans to use VP9 for 4K YouTube videos.
HEVC, is another codec for 4K TV. High Efficiency Video Coding (HEVC). HEVC is a successor to the well known H.264/MPEG-4 AVC video compression standard. HEVC is said to double the data compression ratio compared to H.264/MPEG-4 AVC at the same level of video quality. Windows10: Microsoft will support the relatively new HEVC (High Efficiency Video Coding) video compression standard in Windows 10 out of the box, according to a statement from Gabriel Aul, the leader of its Operating Systems Group's Data and Fundamentals Team.
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XAVC
XAVC uses level 5.2 of H.264/MPEG-4 AVC which is the highest level supported by that video standard.
XAVC can record 4K resolution at 60 fps with 4:2:2 chroma subsampling at 600 Mbit/s.
Quantum Dot and HDR
Samsung’s shows off its new SuperUHD TVs at CES 2015
LCD-based system with HDR brightness of up to 500 nits and Quantum Dot technology allows for amazingly natural colour.
Samsung JS9500 SUHD review at CNET.
Types of LCD Panels
In-Plane Switching (IPS) panels This technology was originally invented in 1996 by Hitachi.
IGZO Indium gallium zinc oxide (IGZO) is a semiconducting material, consisting of indium (In), gallium (Ga), zinc (Zn) and oxygen (O). "IGZO" was jointly developed for mass production by Sharp and Semiconductor Energy Laboratory Co., Ltd. http://www.sharp-world.com/igzo/
TN Twisted Nematic (TN) LCD panel TN Panels are cheap to produce and TN panels can change state quickly, giving them the very fast response time. This makes the panels more appropriate for games that render fast image transitions.
