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Cutting through screen resolution confusion

With modern technology advancing so quick it’s hard to keep up with the knowledge of differences between them. Here’s where we are here to help! Let’s start with the basics. The most common types of TV screens people hear of are SD and HD (standard and high definition), the difference with these are that an SD TV uses a resolution that is not considered to be either high or enhanced definition. On the other hand, a HD screen refers to 1080p resolution which is a significant step up from the 480p resolution of SD screens. To simplify this, a SD picture is equivalent to DVD quality whereas HD is more like a Blu Ray image. For many years these two TV types have been the norm however there is a new kid on the block, 4K.

One of the most common questions asked is “What is this 4K thing then?” The simple answer is 4K gives you more pixels which mean’s a better image can be created. 4K is four times the resolution of HD and consists of 3840 x 2160 Pixels, meaning that a horizontal line of an image has 3840 pixels and a vertical line has 2160 pixels. This creates a dramatic difference in quality in comparison to HD, images will appear sharper and colours are often richer. This gives you one of 4K’s main perks, a more immersive and realistic viewer experience.

At this moment in time there is one small draw back with 4K, in order to experience true 4K you require the feed coming into the TV have been filmed and sent via 4K signal, for example certain content on Sky Q ,Virgin V6 or Netflix or via a 4K Blu Ray disc and 4K Blu Ray player. Currently most programs are filmed in or starting to be filmed in 4K but current transmission technology doesn't allow 4K to be transmitted (for one match of a sporting event to be broadcast from one side of Scotland to the other in 4K took the entire transmission power plus internet connection) but expect to see 4K become the norm over the next few years as the broadcaster’s ability to send a 4K signal improves. We also have the introduction of 8K (4 times 4K) this year which provides an even higher quality picture image.

Screen Resolutions

If you have any other queries about TV’s, SD, HD or 4K including TV installation why not pop in and see us in store. We’d love to welcome you!


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