Source: plastik.hu

Overview of the images and videos on a TV HD depends on the resolution of the screen. The resolution, smooth content search. Screen resolution is described by the elements of image or pixel short. If you would read the specifications for a device with a screen you read often about 1024 x 768"or"800 x 600".

The figures above are screen resolutions. The first number is the horizontal resolution and the second number is the vertical resolution. For a screen with a resolution of 1024 by 768 means that it has 1024 pixels on the horizontal direction and 768 pixels on the vertical axis.

It is important to distinguish between an a 1080i HDTV 1080p HDTV understand the above facts. The "1080" here describes the vertical resolution. This means that these two televisions two have the same resolution. However, they do not have the same image quality. How is this possible?

The "p" and the "i" stand for progressive and interlaced respectively. These are the two methods of scanning and display films. Imagine an image uniformly determined by horizontal lines. Each row of the image is sent in the sequence if the progressive scan is used. If interlaced, the first line of the image is sent followed by the third line and the fifth line and so on.

The need for two separate methods of scanning is justified by the conservation of bandwidth. A television signal is scanned progressively contains a lot of information on a single time period. Say you have a framework composed of 1080 horizontal lines. You must send all these lines both in progressive scan. But if the interlaced scanning is used, only half of these lines are sent to the times. Thus, interlaced digital takes TV signal us less bandwidth.

Although interlaced digital signals are more "band bandwidth-economic", that they are often not that progressive quality of the digitized signals have. There are two recurring problems in the 1080i signals: interline twitter and combing. These image flutter fact especially if the objects in the image are moving at high speed. Filtering can solve the problem, but only slightly. Because of this, the 1080p images look better than interlaced digital signals.

The debate between 1080p and 1080i is a question of cost on quality. Since the 1080p signals take more bandwidth, the equipment needed to treat them are much more expensive. 1080P TVs themselves come with a price. The HDTVs 1080i is less expensive but the quality is not as good.

Want to learn more about the technologies of television? Discover Tech-vs-Tech for other comparisons such as LCD vs LED, Plasma vs LCD and others.