what's the difference between 1080i and 1080p?

Answer 1

'i' stands for interlaced
'p' stands for progressive

It's the way the beam is scanned (or the order in which the pixels are lit up) across the face of the screen.

Both have 1080 vertical lines. In interlaced scan, all the odd lines are lit up in order (1,3,5,,,1079), then all the even lines are lit up in order (2,4,6,,,1080) then it starts over with line 1.

In progressive scan, the lines are lit up in order from 1 to 1080, then back to 1.

Regular TV uses interlaced scanning. So long as the scan rate is greater than 1 screen every 30th of a second, your eye can't tell the difference, 'i' or 'p'.


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Answer 2

1080p is the shorthand call for a classification of reveal resolutions. The huge type "1080" represents a million,080 strains of vertical determination (1080 horizontal test strains),[a million] whilst the letter p stands for revolutionary test (which ability the image isn't interlaced). 1080p could be suggested as finished HD or finished extreme definition to tell apart it from different HDTV video modes.[2] The term commonly assumes a widescreen factor ratio of sixteen:9, implying a horizontal determination of 1920 pixels. This creates a physique determination of 1920×1080, or 2,073,600 pixels in finished. The physique fee in Hertz could be the two implied by ability of the context or special after the letter p, jointly with 1080p30, which ability 30 Hz. yet in maximum situations its much greater ideal and has greater ideal photograph high quality.

Answer 3

To put it Simply:
I stands for Interlaced: the TV will display the odd lines of the picture and the even lines very quickly to produce the Image.

p stands for progressive and the TV will display the full image in one pass.

For watching sports and fast-paced action the image quality looks better in a 1080p resolution.

But there isn't much 1080p content available. No television networks broadcast in 1080p, only certain HD-DVD and Blu-ray movies can display 1080p.

Answer 4

i = interlaced
p = progressive

When a TV/monitor etc.. creates a picture it turns on a line of pixels from one side to the other of the screen. There are a 1080 lines from top to bottom of the screen.

With interlaced it does every other line on pass one, then the rest on pass two. Or, all the odd lines (1,3,5,7..) on the first pass and even lines on the second pass.

With progressive, it does them in sequence.

It goes top to bottom something like 60 times a second.

I don't follow HD technology closely, I didn't know there was 1080p technology yet?

Answer 5

1080p is a higher quality picture. The P stands for progressive scan, where the I stands for interlaced.

P is considered to be "true" hi def. Both are very nice though. However, technically 1080p, does produce a higher quality picture.

Answer 6

i and p. p is better than i. i is junky.