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Question

What does the term 1080i mean in Tvs and in English?

Answer 1

How’s this for “English”

1080i is one of two High Definition Display / Broadcast standards.

The “i” in 1080i indicates interlaced. Interlaced images are drawn vertically line 1, and then line 3 to the bottom of the screen, followed by a second sweep filling in line 2, followed by line 4, etc. This is done quick enough to fool the eye / brain into seeing a coherent image. American television (standard definition) has been 480i since 1941. That would be 480 interlaced lines. 1080i is 1080 interlaced lines – a much sharper picture.

All Networks broadcast HDTV in 1080i except the ABC networks (including ESPN). ABC is broadcast in 720p.

It would be logical to provide an “English” explanation of 720p now.

The “p” in 720p indicates progressive. Progressive images are “painted” vertically consecutively line 1, and then line 2, followed by line 3, etc. Computer Monitors are always progressive allowing users to sit very close with minimal eye strain.

A 1080i television seamlessly converts ABC channels into 1080i - 720p televisions effortlessly coverts NBC, and HBO into 720p.

Despite what a salesman tells you - it’s doubtful anyone can tell the difference between the two high definition standards 1080i and 720p.

Answer 2

1080i is the shorthand name for a category of video modes. The number 1080 stands for 1080 lines of vertical resolution, while the letter i stands for interlaced or non-progressive scan. 1080i is considered to be an HDTV video mode. The term usually assumes a widescreen aspect ratio of 16:9, implying a horizontal resolution of 1920 pixels and a frame resolution of 1920 × 1080 or about 2.07 million pixels, and a field resolution of 1920 × 1080 / 2 (because it's interlaced) or about 1.04 million pixels. The field rate (not the frame rate) in hertz can be either implied by the context or specified after the letter i. The two field rates in common use are 50 and 60 Hz, with the former (1080i50) generally being used in traditional PAL and SECAM countries (Europe, Australia, much of Asia, Africa), the latter (1080i60) in traditional NTSC countries (e.g. United States, Canada and Japan). Both variants can be transported by both major digital television formats, ATSC and DVB.

Some people prefer to use the line number of fields, which is half that of frames, in their nomenclature and thus call this mode 540i, likewise 240i and 288i. Others, including the European Broadcasting Union (EBU), prefer to use the frame rate instead of the field rate and separate it with a solidus from the resolution as in 1080i/30 and 1080i/25, likewise 480i/30 and 576i/25.

1080i is directly compatible with CRT-based HDTV sets. CRT-based HDTV never entered the market in large volumes and is today regarded as outdated technology. 1080i is compatible with newer 720p- and 1080p-based televisions but must be deinterlaced first in order to be displayed on those sets.

Due to a curiosity of the NTSC format, the field rate of actual 1080i broadcasts is usually 0.1% slower than is implied. For example, a 1080i60 or "60 Hz" transmission actually displays about 59.94 fields each second. Both the straight 24/30/60 and 23.976/29.97/59.94 frequencies are supported by current standards.

Progressive format 1080p50 or 60 is foreseen as the future broadcasting standard for production

Answer 3

1080i is the shorthand name for a category of video modes. The number 1080 stands for 1080 lines of vertical resolution, while the letter i stands for interlaced or non-progressive scan. 1080i is considered to be an HDTV video mode. The term usually assumes a widescreen aspect ratio of 16:9, implying a horizontal resolution of 1920 pixels and a frame resolution of 1920 × 1080 or about 2.07 million pixels, and a field resolution of 1920 × 1080 / 2 (because it's interlaced) or about 1.04 million pixels. The field rate (not the frame rate) in hertz can be either implied by the context or specified after the letter i. The two field rates in common use are 50 and 60 Hz, with the former (1080i50) generally being used in traditional PAL and SECAM countries (Europe, Australia, much of Asia, Africa), the latter (1080i60) in traditional NTSC countries (e.g. United States, Canada and Japan). Both variants can be transported by both major digital television formats, ATSC and DVB.

Answer 4

I believe it's The Bar Rate Screen Resolution on CRT TV Sets!

Answer 5

Its mean the pixel and its a HD TV