4K resolution
4K is an emerging standard for resolution in digital film and computer graphics. The name is derived from the horizontal resolution, which is approximately 4,000 pixels. This designation is different from those used in the digital television industry, which are represented by the vertical pixel count; for example 480p, 576p, 720p, and 1080p. 4K represents the horizontal resolution because there are numerous aspect ratios used in film — so while the horizontal resolution stays constant, the vertical resolution depends on the video source (a.k.a. letterboxing). There are several different resolutions that qualify as 4K. Since July 2010, YouTube has allowed videos to be uploaded at a resolution of up to 4096 x 3072 (4:3).[1]
|
[edit] Formats
[edit] Digital film
In digital film, the pixel resolution varies by aspect ratio. Examples of 4K digital recording devices are the Dalsa Origin (announced in 2003 and released in 2006 as the first commercially available 4K digital cinema camera), the Red One (announced in 2006 and released in 2007), the Red Epic (released in early 2011), and the Sony CineAlta F65 (announced in April 2011). The Dalsa Origin system records images at a resolution of 4096 × 2048 and the Red One records images at 4096 × 2304.
| Standard | Resolution | DAR | Pixels |
|---|---|---|---|
| Full Aperture 4K | 4096 × 3112 | 1.32:1 | 12,746,752 |
| Academy 4K | 3656 × 2664 | 1.37:1 | 9,739,584 |
| Digital cinema 4K | 4096 × 1714 | 2.39:1 | 7,020,544 |
| Digital cinema 4K | 3996 × 2160 | 1.85:1 | 8,631,360 |
| Standard | Resolution | DAR | PAR | Pixels |
|---|---|---|---|---|
| Full Aperture 4K | 4096 × 3112 | 4:3 | 1:1 | 12,746,752 |
| Academy 4K | 3656 × 2664 | 1.37:1 | 1:1 | 9,739,584 |
[edit] QFHD (3840x2160)
Quad Full High Definition (QFHD), at 3840 x 2160 pixels, doubles the 1080p high-definition television standard in both the vertical and horizontal dimensions.
| QFHD (3840x2160) | |
|---|---|
| 1080p (1920x1080) |
1080p (1920x1080) |
| 1080p (1920x1080) |
1080p (1920x1080) |
[edit] List of 4K monitors and projectors
The following monitors and projectors support 4K resolution:
| Manufacturer | Device Type | Model | Resolution | Diagonal | PPI | Launch date | MSRP |
|---|---|---|---|---|---|---|---|
| Barco | monitor projector |
LC-5621[3] DP4K-23B[4] DP4K-32B[5] SIM 10[6] Galaxy 4K-12[7] Galaxy 4K-23[8] Galaxy 4K-32[9] |
3840x2160 4096x2160 4096x2160 4096x2400 4096x2160 4096x2160 4096x2160 |
56 inch Up to 23m/75ft Up to 32m/105ft Up to 23m/75ft Up to 23m/75ft Up to 32m/105ft |
78 pixel/inch varies varies varies varies varies varies |
Apr 16, 2007 Mar 24, 2011 Mar 24, 2011 Nov 29, 2010 Jun 11, 2011 Jun 11, 2011 Jun 11, 2011 |
|
| Astro | monitor | DM-3428[10] DM-3410-A[11] DM-3412[12] |
3840x2160 3840x2160 3840x2160 |
28 inch 56 inch 60 inch |
157.35 pixel/inch 78.68 pixel/inch 73.43 pixel/inch |
||
| Eizo | monitor | DuraVision FDH3601[13] | 4096x2160 | 36.4 inch | 127.2 pixel/inch | Sep 2011 | $34,844 USD |
| IBM Viewsonic |
monitor | T220/T221 VP2290b |
3840x2400 | 22.2 inch | 204 pixel/inch | Jun 27, 2001 | Out Of Production |
| Sharp, Eyevis | monitor | EYE-LCD6400-4K | 4096x2160 | 64 inch | 72.4 pixel/inch | $53,000 USD | |
| Toshiba | monitor (television); 3D (autostereoscopic) |
Regza 55X3[14] | 3840x2160 (QFHD) | 55 inch | 80.1 pixel/inch | Dec 2011 in Japan | $11,730 USD |
| Christie | DLP projector | D4K35[15] | 4096x2160 | up to 30.5 m | varies | ||
| Sony | monitor projector |
SRM-L560[16] VPL-VW1000ES |
3840x2160 4096x2160 |
56-inch varies |
78.7 pixel/inch varies |
Dec 2009 Dec 2011 |
<$25,000 USD |
| Panasonic | monitor (television); 3D (active shutter glasses) |
TH-152UX1[17] | 4096x2160 | 152 inch | 30.5 pixel/inch | July 1, 2010 | $500,000 USD[18] |
| TVLogic | monitor | LUM-56W[19] | 3840x2160 | 56 inch | 78.4 pixel/inch |
[edit] See also
[edit] References
- ^ Ramesh Sarukkai (2010-07-09). "What's bigger than 1080p? 4K video comes to YouTube". http://youtube-global.blogspot.com/2010/07/whats-bigger-than-1080p-4k-video-comes.html. Retrieved 2011-08-20.
- ^ "4K resolution Definition from PC Magazine Encyclopedia". PC Magazine. 1994-12-01. http://www.pcmag.com/encyclopedia_term/0,2542,t=4K+resolution&i=57419,00.asp. Retrieved 2010-05-28.
- ^ http://www.barco.com/en/product/1831
- ^ http://www.barco.com/en/product/2383
- ^ http://www.barco.com/en/product/2310
- ^ http://www.barco.com/en/product/2333
- ^ http://www.barco.com/en/product/2442
- ^ http://www.barco.com/en/product/2436
- ^ http://www.barco.com/en/product/2437
- ^ http://www.astrodesign.co.jp/english/product/dm-3428-dm-3410-a#section5
- ^ http://www.astrodesign.co.jp/english/product/dm-3428-dm-3410-a#section5
- ^ http://www.astrodesign.co.jp/english/product/dm-3428-dm-3410-a#section5
- ^ http://www.eizo.com/global/products/duravision/fdh3601/index.html
- ^ http://www.electronichouse.com/article/toshiba_55-inch_glasses-free_4k_3dtv_ships_in_december/?utm_source=eh&utm_medium=rp
- ^ http://www.christiedigital.com/SupportDocs/Anonymous/Christie-D4K35-Brochure.pdf
- ^ http://pro.sony.com/bbsc/ssr/product-SRML560/
- ^ http://panasonic.co.jp/corp/news/official.data/data.dir/en100609-3/en100609-3.html
- ^ http://catalog2.panasonic.com/webapp/wcs/stores/servlet/ModelDetail?storeId=11201&catalogId=13051&itemId=490650&catGroupId=14624&surfModel=TH-152UX1&displayTab=O
- ^ http://www.tvlogicusa.com/product/product.php?idx=40
|
|||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
