When buying a television you would have noticed that its written “1080 p full HD”. Am sure many of us have wondered what the 1080p means, as most of us already know HD stands for “High Definition”, so what does 1080p mean? This article will explain the best way it can in layman’s language what “p” and the number (eg 1080) means, and will also explain the other kind of display referred to as Interlaced
Display resolutions is given mostly in these categories: 360p, 480p, 720p and 1080p. I shall use 1080p throughout to explain this article, and note this also applies to the other display resolutions
When 1080p is written its shortform name for one of the category displays. The number 1080 represents the number of Vertical resolutions/lines while the letter “p” stands for Progressive Scan. Progressive scan means that an entire image is drawn completely every time the screen refreshes which usually happens about 100 times per second.
There is another kind of display where the 1080p would be referred to as 1080i (notice the p and i are interchanging). The i stands for Interlaced. This means that only half of the Vertical lines (example the 1080 vertical lines) on the screen are drawn per refresh and are not all drawn as is with the case with Progressive scan. In laymen’s language interlaced display is like seeing an image or object through window that has blinds and moving up and down slightly but very fast that the image can be seen as a whole at one point. The image therefore is not completely as clear as with progressive scan
Normally when a device like a screen or camera or any device that produces an image is being advertised the vertical lines are not generally listed. Hence for a Tv with a 1080p resolution it has 1920 × 1080 pixels while for a TV with 720p resolution its 1280 × 720 pixels. Notice the progressive scan number comes last while the first number represents the vertical lines. The pixels is what now enables us to see items in high clarity, and its the progressive scan numbers (1080p) that contribute to the pixels.
So now when you go to buy your television set you should be able to be informed on what some of the terms they use mean. You can now be able to choose the best television set to purchase and you can be able to understand the price variation on the televisions.
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