High-definition television
Projection screen in a home theater, displaying a high-definition television image.High-definition television (HDTV) is a digital television broadcasting system with higher resolution than traditional television systems (standard-definition TV, or SDTV). HDTV is digitally broadcast because digital television (DTV) requires less bandwidth if sufficient video compression is used.
High-Definition Display Resolutions
High Definition usually refers to 720 horizontal lines of video format resolution or more.
| Video Format Supported |
Native Resolution (W×H) |
Pixels (Advertised Megapixels) |
Aspect Ratio (X:Y) |
Description |
| Image |
Pixel |
720p
1280×720 |
1024×768
XGA |
786,432 (0.8) |
16:9 |
4:3 |
Typically a PC resolution XGA; also exists as a standardized "HD-Ready" TV on the Plasma display with non-square pixels. |
1280×720
|
921,600 (0.9) |
16:9 |
1:1 |
Typically one of the PC resolutions on WXGA, also used for 750-line video, as defined in SMPTE 296M, ATSC A/53, ITU-R BT.1543, Digital television, DLP and LCOS projection HDTV displays. |
1366×768
WXGA |
1,049,088 (1.0) |
683:384
(Approx 16:9) |
1:1
Approx |
Typically a TV resolution WXGA; also exists as a standardized HDTV displays as (HD Ready 720p,1080i), TV that used on LCD HDTV displays. |
1080i
1920×1080 |
1280×1080 |
1,382,400 (1.4) |
32:27
(Approx 16:9) |
3:2 |
Non-standardized "HD Ready", TV. Used on HDTV Plasma display with non-square pixels. |
1080p
1920×1080 |
1920×1080
|
2,073,600 (2.1) |
16:9 |
1:1 |
A standardized HDTV displays as (HD Ready 1080p) TV, that used on LCD HDTV displays. Used for 1125-line video, as defined in SMPTE 274M, ATSC A/53, ITU-R BT.709. |
2160p
3840×2160 |
3840×2160 |
8,294,400 (8.3) |
16:9 |
1:1 |
Quad HDTV for DCI Cinema 4k standard format, (Currently, there is no HD Ready 2160p Quad HDTV format until 2015). |