Talk:List of common display resolutions

NTSC resolution?

NTSC's resolution 640 x 480 non-square pixels (like a television), giving a 720 x 480 pixel image when resampled for square pixels (like a computer monitor). PAL is 640 x 576 non-square pixels. Claiming that either one is 720 pixels wide is wrong.

Spotted a minor error with the list

Found 1280x768, for a 16:10 resolution. According to http://www.widescreengamingforum.com/wiki/index.php?title=Common_Widescreen_Resolutions it is 1280x800. There may be other mistakes...

The following discussion is an archived discussion of the proposal. Please do not modify it. Subsequent comments should be made in a new section on the talk page. No further edits should be made to this section.

The result of the proposal was merge.--JEF 01:03, 18 July 2007 (UTC)

Merger with display resolution

Should this be merged with display resolution? Madda 16:07, 12 April 2006 (UTC)

The table has little to do with "resolution" in the visual perception sense. It gives the grid patterns that pictures may be broken up into.

The table is very computer-world centric and reflects many different (and sometimes proprietary) solutions from individual companies and organisations rather than national and international standards.

There are some errors noted also that probably arise from confusion between compressed systems (eg MPEG) where the "active picture" line samples are given and uncompressed studio systems (in particular, 1.485Gbps HD SDI) where the number of samples per line also includes the blanking interval (- quite different for 50 and 60 Hz systems).

For example European HDTV entry in the table is wrong. Europe originally in the early '90s experimented with analog HD-MAC using 1250 line total, 1152 line interlace active picture (i.e. twice 625/576). Current DVB-S,-C,-T digital standards users from Europe, Australia, etc. are using or testing HDTV formats as listed in DVB's standard ETSI TS 101 154 V1.7.1 (2005-06) Annex A. (for a copy http://www.etsi.org/services_products/freestandard/home.htm ) In reality 3 HD formats (at 25 or 50 frames/s) are being broadcast or tested - 1280 x 720p; 1440 x 1080i and 1920 x 1080i - the latter being rare because the MPEG bitrate required is not available for low artefact pictures. Also most broadcasters use HDcam DVRs that have internal filtering to 1440 pixes per line. Note also that MPEG-2 uses 16 x 16 macroblocks but 1080 is not a complete number of 16 line samples - 1088 is, so the line number is sometimes quoted as 1088 although there's picture on only 1080 lines.--anon

• Yes. It more-or-less mirrors a section of "Display Resolution" (which is "Common Display Resolutions"). -Edlin2 03:20, 31 October 2006 (UTC)

• Yes. -unknown 15:39, 17 May 2007 (UTC)

The above discussion is preserved as an archive of the proposal. Please do not modify it. Subsequent comments should be made in a new section on this talk page. No further edits should be made to this section.

1920x1440

My pc lists 1920x1440 as a standard 4:3 resolution, should it be on this list? —The preceding unsigned comment was added by 85.133.27.147 (talk) 15:21, 5 December 2006 (UTC).

Added, along with a few other 4:3 resolutions that I've seen from time to time. 71.116.111.36 (talk) 03:53, 20 July 2008 (UTC)

1280x768

Where is 1280x768? That's a common resolution on laptop computers using WXGA+. --65.8.156.221 19:17, 17 December 2006 (UTC)

Added. Thanks for pointing that out; I didn't know that widescreen monitors were made in aspect ratios other than 8:5 and 16:9. 71.116.111.36 (talk) 03:53, 20 July 2008 (UTC)

1280x960

Wasn't 1280x960 in the listings until recently? That's preferred for 4:3 monitors over the more common 1280x1024, I thought.

Added. It has apparently earned the designation of "SXGA-", and I haven't seen it anywhere outside of Star Trek Voyager: Elite Force and a few wallpapers. 71.116.111.36 (talk) 03:53, 20 July 2008 (UTC)

Name

Surely the article should be named e.g. List of image resolutions (since 'resolution' has different meanings - not necessarily image related). I don't think it needs to say 'common' (many of them are not common); it could possibly say 'standard' though, i.e. List of standard image resolutions, since all of them are defined standards. 80.47.80.101 14:00, 17 May 2007 (UTC)

thx wikipedia

Display Aspect Ratio column

The "Display Aspect Ratio" column appears to assume a square pixel aspect ratio. A lot of these display formats do not have square pixels. Notably, 480-line CCIR 601 based formats have pixels shaped as 10:11 rectangles, the 320x200 PC formats are 5:6, and formats based on half the width of an NTSC subcarrier cycle (such as Apple IIe hi-res video) are 6:7. Is a new column for pixel aspect ratio needed? --Damian Yerrick (serious | business) 13:00, 8 November 2007 (UTC)

That would be a fabulous idea if not for the fact that resolutions and pixel aspect ratios aren't bound to each other. 1280x1024, for example, can give either a 4:3 or 5:4 image depending on what kind of monitor you're using. That's why this is a list of resolutions, not a list of formats. 71.116.111.36 (talk) 03:53, 20 July 2008 (UTC)

"i" and "p" suffixes could use explanation

I suggest that the suffixes "i" and "p" on some resolutions could use explanation. PeterWise9 (talk) 17:04, 18 January 2008 (UTC)

The 'i' and 'p' are for 'interlaced' and 'progressive scan.' An interlaced image's odd-numbered lines are displayed first, then the even-numbers are displayed on the monitor's next refresh. A progressive-scanned image would display the entire image at once. However, while downloading, they would be displayed, appearing progressively downward, however, in an interlaced image's odd-numbered lines would still be displayed first. Also, an interlaced video's odd-numbered lines would be displayed in the first, even in its second, odd in its third, and so on. Doggitydogs (talk) 20:28, 19 April 2008 (UTC)