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Both formats have a resolution of 1920 x 1080 pixels. The difference is in the way the picture is refreshed.
"i" stands for interlaced. The image is drawn one line at a time starting with all the odd numbered lines, 1, 3, 5 and so on to line1079. Then the image is completed by drawing all the even numbered lines from line 2 to line 1080. Each pass is known as a field and 1080i normally uses a field rate of 50Hz or 60Hz. A complete refresh is completed 25 or 30 times each second.

"p" stands for progressive scanning. In this case, the image is drawn during a single field. Lines are drawn consecutively starting with lines 1, 2, 3, through line 1079 and 1080. As each field is normally drawn 50 or 60 times each second so the image is fully refreshed 50 or 60 times each second. To display a 1080p image needs data at twice the rate of a 1080i image because lines are drawn at twice the rate.

Some comments about frame and field rates: In Europe, the field rate is 50Hz while in North America it is 60Hz, hence the two frequencies mentioned above. They are not the only frame and field rates however. Some other rates are used as well. For example, film is normally shot at 24 frames per second. It is quite possible to capture film to a 1080p format but at 24 frames per second. The full format is identified as 1080p 24. Based on the information above, you can see that the data rate for 1080p 24 will be less than 1080p 50 and less than 1080i 25.
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โˆ™ 2010-07-07 21:55:12
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Q: What is the difference in 1080i and 1080p?
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Related questions

Which is better 1080i or 1080p for video gaming?

The difference between 1080i and 1080p is a subtle one. 1080p 50Hz or 1080p 60Hz update the image at twice the rate of 1080i 50Hz or 1080i 60Hz. For fast movement, 1080p handles image updates rather better than 1080i and tends to avoid image flicker that can be apparent on some interlaced formats. Whether or not it makes a noticeable difference depends on the television and the game content so it's worth trying both formats to make your own decision.


What is the difference between 1080i and 1080p televisions?

The terms 1080i (interlaced) and 1080p (progressive) indicate how images are stored and displayed. In the days of analog tv this would be important, however with the advancement of technology most digital tvs can handle both 1080i and 1080p signals.


What is the difference between 1080p and 1080i HDTV?

The main difference between a 1080p and a 1080i HDTV is the method used to decode the digital signal being sent to the television. 1080p signals send each line to be displayed on the television in a progressive manner. 1080i signals send every other line of the display, also known as interlaced. A 1080p television should be slightly faster as rendering the image since it does not have to interpret the pictures being sent, as they are all in the correct order, but this means the 1080p televisions are probably more expensive,


Is 1080p TV compatible with 1080i cable?

yup it can decode 1080p all the way threw 480i (1080i included)


Why is your 1080p television showing 1080i?

HDTV is broadcast in two formats: 720p and 1080i. When your 1080p set gets these signals it has to convert them to 1080p. With 720p it scales the image to 1080p while with 1080i it deinterlaces the image. Current TVs are very good at this and so you wind up with the full 1080 lines of resolution in the end. If your 1080p is displaying 1080i on screen, it just means that is the signal it is receiving, but it is converted to 1080p before you see it.


Is a 1080i TV compatible with 1080p cable?

Most modern LCD/Plasma TV's are capable of receiving and displaying 720i, 720p, 1080i and 1080p signals. Therefore your TV, if it can receive 1080i, should be quite happy with a 1080p signal.


Which is better 1080p or 1080i?

Both 1080i and 1080p have an identical resolution on the screen. For static images, there is no difference between the two. The difference between them is that 1080i uses an "interlaced" signal format. The image is generated with 2 passes of the screen. The first draws all odd numbered lines and the second draws all even numbered lines. A "progressive" format refreshes the whole image on every pass so it delivers a full image at twice the rate of an interlaced image. For fast movement, 1080p has the edge over 1080i although most would agree that the difference in perceived quality is not a big one. Note that the format used is dependent on the program content. If it delivered as a 1080i signal, the fact that a television can handle 1080p does not make the incoming signal a 1080p format. Also, at present, broadcasters are not using 1080p as a transmission format and are unlikely to use it for a number of years. 1080p is found only on local sources such as games players, Bluray discs and computers.


Is 1080i screen resolution better than 1080p resolution?

No, 1080p resolution is better than 1080i resolution. This also holds true with 480i and 480p resolution.


Is 1080p or 1080i better for an HDTV?

1080p is the current highest definition standard for HD televisions.


Does cox cable use 1080p?

Negative, no networks broadcast in 1080P yet, it does 720P and 1080i


How does 1080p differ from 1080i?

The both deal with the picture on the television. 1080i has interlaced pictures and 1,080 lines of vertical resolution for the picture. 1080p are progressive scans or non-interlaced pictures.


Is 1080i as good as 1080p?

1080i/50 is better than 1080p/25. One frame in 1080i/50 is always derived in half with old and new fields and framerate is truly 50. This makes much better motion but detailaccuracy is same level as in 25p. Both have same bitrate so 1080i is clear winner in this comparison. 1080p/50 has better video quality than 1080i/50 but it has double bitrate which is a problem in broadcasting.


Difference 1080i and 1080p?

1080i and 1080p are both High Definition display formats for HDTVs. 1080i and 1080p signals actually contain the same information. Both 1080i and 1080p represent a 1920x1080 pixel resolution (1,920 pixels across the screen by 1,080 pixels down the screen). The difference between 1080i and 1080p is in the way the signal is sent from a source component or displayed on an HDTV screen. In 1080i each frame of video is sent or displayed in alternative fields. The fields in 1080i are composed of 540 rows of pixels or lines of pixels running from the top to the bottom of the screen, with the odd fields displayed first and the even fields displayed second. Together, both fields create a full frame, made up of all 1,080 pixel rows or lines, every 30th of a second. In 1080p, each frame of video is sent or displayed progressively. This means that both the odd and even fields (all 1,080 pixel rows or pixel lines) that make up the full frame are displayed together. This results in a smoother looking image, with less motion artifacts and jagged edges. 1080p can also be displayed (Depending on the video processing used) as a 1080p/60 (Most common), 1080p/30, or in 1080p/24 formats. 1080p/60 is essentially the same frame repeated twice every 30th of a second. (Enhanced video frame rate.) 1080p/30 is the same frame displayed once every 30th of a second. (Standard live or recorded video frame rate.) 1080p/24 is the same frame displayed every 24th of a second (Standard motion picture film frame rate.)


Can you use Blu-ray player with 1080p on a 1080i tv?

Almost all HD televisions other than some older models will handle 1080p signals. A few of the early models may require the Bluray output to be set to 1080i rather than 1080p.


Do they broadcast in 1080i?

The best quality pictures come from 1080P


What is the best T.V. for ps3?

One with 1080p and 1080i compatability


Does Charter TV broadcast in 1080P?

No, only 1080i. 1080p is currently only found on local video sources such as games consoles and computer displays. Broadcasters are currently using only 1080i and 720p as their HD formats.


Is there a big difference between 720 p resolution and 1080 p resolution?

yes the quality is quiet different 1080 is much better how ever the is litttle to no difference betwee 1080i and 720p but 1080p is the best


What TV formats are HDTV?

If the TV is 1080i, 1080p or 720p, they are HDTV.


Is the ox pro series 4 projector fully 1080p?

no its 1080i


Does Charter Communications broadcast in 720P or 1080P?

1080i is the highest output


What is the difference between 1080p and 1080i on a HDTV?

It's to do with the resolution. The 1080 identifies the number of lines that create the image, so 1080p and 1080i have the same number of lines. The letter stands for the type scan the TV uses. The P stands for progressive and the I stands for interlaced. Progressive will process the image twice as fast as interlaced and therefore produces better colour and clarity.


What is better for sports 1080i or 1080p?

Both 1080i and 1080p have the same resolution. That means that the amount of detail will be identical with either. However, 1080p delivers a complete image 50 times per second in Europe or 60 times per second in North America. 1080i delivers half of the image in the same time, followed by the other half in the following field. It follows that sports and other fast moving images will be better on 1080p than 1080i and that is indeed the case when the two are compared. The problem with 1080p is that it is not being broadcast at present and won't be for a number of years. 1080p required twice the bandwidth and twice the storage space. Broadcasters don't presently have equipment to handle live 1080p content. Most new televisions will handle 1080p but even if it does, sport that is broadcast in 1080i will never become 1080p quality. There is no need to worry though. 1080i delivers some great images even for sport. It is worth mentioning that the other HD standard, 720p offers a lower resolution than 1080 but it delivers a full frame 50 or 60 times each second. The bandwidth is the same as 1080p so the image detail is sacrificed a little for the sake of a faster frame rate. Some broadcasters in North America are using 720p but not all. In Europe, 720p is hardly ever seen with broadcasters all moving to 1080i as their standard.


Is the iPhone 4 1080p?

the iPhone 4 is 1080i, not 1080p. the iPhone 4s is 3600p, which is the leading innovation in the smartphone world at nearly twice the digital quality of any 1080p device.


Will a 1080p work with a 720p and 1080i broadcast?

Yes, if you use the proper cables