What is ultra high definition?

Abstract: This article will help you understand what ultra high definition is, what the difference is between ultra high definition and normal high definition and how much this technology will cost and what it looks like.

What is high definition?

Firstly what is high definition? High definition or hd is a phrase that has been going around over the past few years quite a lot.  You will often find it used with tvs or cameras or camcorders and now you can find it being used with the latest smart phones and tablet pcs.  To put it quite simply hd or high definition is a marketing stunt it just means that a device whether it be a tv or video has a higher resolution than standard.  

The most common standards for high definition resolutions are 720p, 1080i and 1080p.

720p will have a frame size of 1280 by 720 

1080 p will have a frame size of 1920 by 1080p

1080i will have a fram size of 1920 by 1080i

or 1440 by 1080i.

The difference between 1080p and 1080i is progressive scan and interlaced scan.  Progressive scan means all the lines in a frame are captured at the same time.  In interlaced scan the two fields of a frame correspond to two different points in time so motion portrayal is good.

What is ultra high definition? 

What about ultra high definition then? Well  as you may have guessed already ultra high definition basically is a higher resolution than "normal" hd.  Ultra high definition is a new technology and tvs with this uhd technology have only recently been created.  There are currently two versions of ultra high definition tvs and they are 4k and 8k.  8k being the higher resolution of the two has a resolution 16 times that of 1080p full hd which is unreal.  

8k tvs have a resolution of 7680 by 4320 and 4k tvs have a resolution of 3840 by 2160.

How much will ultra high definition cost?

Since ultra high definition tvs have only recently been developed you can bet that they will cost a lot of money and you will be right.  LG released a 4k tv in the United States with a retail price of $20 thousand dollars.  I wouldn't worry too much though about the  price because technology is constantly changing and even these monster tvs will be replaced in the meantime though current led backlight tvs will become cheaper.  

Hopefully you have enjoyed this article and learnt the basics of ultra high definition and how it differs from standard high definition.  

labels: ultra high definition, high definition, tv, led, hd, 4k, 8k,