Often when buying a new TV or monitorfor a personal computer, the following question arises: “What is better - 1080i or 1080p?” It would seem that the resolution is 1920 pixels wide and 1080 pixels high, that's all. This is the standard HD - it displays the image in high quality. But not everything is so simple. It turns out that there are two ways to display the image. The first one is interlaced. And the second is progressive. It is on the comparison of their strengths and weaknesses and it will be concluded that it is better: 1080i or 1080p.
A certification program called HD Readywas officially launched in Western Europe in early 2005. Even then, it was conditionally divided into two types. The first one is the one that goes with the index "and". It is tied to analog standards, which today are almost completely superseded by digital technology. The second (with the “p” index) is maximally focused on supporting the latter. Already only on the basis of this can we conclude that it is better - 1080i or 1080p.
Опишем технические характеристики каждого из standards, which will give a reasoned answer to the question of what is better: 1080i or 1080p. Let's start with the first one. This is one of the possible options for displaying images with a resolution of 1920 by 1080 pixels. At the same time, such a device plays video in Full HD format. The refresh rate of the picture on this screen can be 50 or 60 Hz. It is set by program settings. The picture is formed in two cycles. At the first stage, even lines are output, and then odd lines. The human eye does not notice. But the image itself is not very high quality. You can even say blurry. The cost of such a TV or monitor will be lower. The main advantage in this case is a reduced stream of video data: with this technology it decreases by 2 times. Accordingly, the circuit design solutions are simplified, which affects the lower cost of the device.
Чтобы определиться, что лучше выбрать - 1080i или 1080p, - let's look at the characteristics of the second standard. The resolution of the matrix in this case is similar - 1920x1080. In addition to the update frequency (50 and 60 Hz), there is also support - 24 Hz. But the image is displayed in one cycle. Therefore, the picture is much better. But the price in this case will be higher.
Выяснив технические особенности и сравнив их, You can decide on what would be more correct to buy, which of the two standards TV: 1080i? 1080p? The difference between these formats seems to be insignificant. Image resolution is the same - 1920 pixels in width and 1080 in height. The refresh rate of the image in both cases is identical. It can be 50 or 60 Hz, depending on the program settings. Additionally, in the standard 1080p there is an image output with a frequency of 24 Hz. It is designed to play movies in certain formats. The key difference is how the image is formed. In the format with the index "and" the picture is obtained by phased output lines. A similar principle was used on old analog TVs and monitors. Previously, this method of withdrawal is extremely negative impact on human vision. Now, due to more modern technologies, such influence is minimized. But all the same, the actual resolution that is processed per clock is reduced. The actual video format is obtained as follows: 1920 to 540. But 1080p updates the whole picture. That is, it turns out the "real" resolution of 1920 to 1080. In fact, this is a full-fledged Full HD. These are the main features of 1080i, 1080p formats. The differences between them are as follows:
Do not forget about the cost of the device. In the case of 1080p, it will be higher by 10-20 percent.
Now let's summarize and determine thatis better: 1080i or 1080p? Of course, the second one will have a higher value anyway, but from the quality point of view it will be better. The picture is clear, it is often updated, a smaller load on the vision - these are the advantages that determine this choice. Yes, and full support for non-standard video files will not be superfluous either. Do not forget also that 1080p can work in the mode with "and". To do this, simply adjust the software settings of the device. But in the opposite direction this will not work. Still, technically, a half frame cannot be converted into a whole frame. Namely, in this case, the image is formed. And one more important nuance. So far 1080p has not received much distribution in the transfer of broadcast programs, but it’s the future. It is the matter of time. Soon, most television channels will broadcast in exactly this format. And then it will be possible to fully experience all its advantages. The images in the on-air signal and on the TV screen will be in the same format, and you can believe that the picture quality will be really the best.
As part of this material, an analysis was conductedthe strengths and weaknesses of the two basic standards of image formation on a monitor or TV screen. Knowing these nuances, it will be easy to choose between hd 1080p or hd 1080i. But at the same time do not forget about the cost, which in this matter plays not the last role. In any case, the recommendations in this article will allow you to choose the device that best suits your needs.
