1440p
1440p is the shorthand name for a family of video display resolutions. The p stands for progressive scan, i.e. non-interlaced. The 1440 denotes a vertical resolution of 1440 pixels, double the vertical resolution of 720p.
| Comparison of 1440p resolutions | ||
|---|---|---|
| Resolution | Display aspect ratio | Megapixels |
| 5120 × 1440 | 3.5:1 (32:9) | 7.37 |
| 3440 × 1440 | 2.38:1 (43:18) | 4.95 |
| 3200 × 1440 | 2.2:1 (40:18) | 4.61 |
| 3120 × 1440 | 2.16:1 (39:18) | 4.49 |
| 3040 × 1440 | 2.1:1 (38:18) | 4.38 |
| 2960 × 1440 | 2.05:1 (37:18) | 4.26 |
| 2880 × 1440 | 2:1 (18:9) | 4.15 |
| 2560 × 1440 | 1.7:1 (16:9) | 3.69 |
| 2304 × 1440 | 1.6:1 (16:10) | 3.32 |
| 2160 × 1440 | 1.5:1 (3:2) | 3.11 |
| 1920 × 1440 | 1.3:1 (4:3) | 2.76 |
Support
1440p video mastered from 4:3 ratio content could be displayed with 1920×1440 or higher resolution such as QXGA or 2304×1440 with scaling, windowboxing, or pillarboxing. Widescreen 16:9 1440p requires 2560×1440 (WQHD) resolution, possible with WQXGA, 2560×1920, or higher resolution with letterboxing, scaling, or windowboxing. Apple's 27" iMac[1] and Dell's UltraSharp U2711[2] monitor are WQHD, thereby allowing 1440p widescreen. The HDMI 1.3 specification supports WQXGA, and hence widescreen 1440p.
Usage
In autumn 2006, Chi Mei Optoelectronics (CMO) announced a 47" 1440p LCD panel to be released in Q2 2007;[3] the panel was planned to finally debut at FPD International 2008 in a form on autostereoscopic 3D display.[4]
In relation to smartphones, 1440p displays are sometimes marketed as "Quad HD", as it is four times the resolution of 720p high definition. The Vivo Xplay 3S, released December 2013, was the first smartphone to use a 1440p display; by 2015, 1440p had seen wider adoption by high-end flagship smartphones from major companies.[5][6][7]
References
- "Apple iMac Technical Specifications". Archived from the original on 2012-10-18. Retrieved 2019-01-27.
- Dell: Product Detail: Press Releases
- "CMO to ship 47-inch Quad HD -- 1440p -- LCD in 2007". Chi Mei Optoelectronics. 2006-10-17. Retrieved 2008-07-06.
- "CMO showcases latest "green" and "innovative" LCD panel". Chi Mei Optoelectronics. 2008-10-24. Archived from the original on 2010-03-13. Retrieved 2008-10-26.
- P, Chris. "Smartphones with Quad HD (1440 x 2560) resolution displays (2015)". PhoneArena. Retrieved 2019-04-08.
- "Oppo Find 7 Android smartphone". PC World. Retrieved 2019-04-08.
- Dolcourt, Jessica. "Remember, Samsung Galaxy S5 is not the first 2K phone". CNET. Retrieved 2019-04-08.
