720p is the lowest resolution of the television standard high definition television. " 720 " stands for the vertical resolution, "p" for progressive image transmission.
720p signals are transmitted 720 pixels with a resolution of 1280 × and produce a video signal of 720 lines. The transfer of 720p signals is done in 16:9 aspect ratio. Based on still images with 921,600 pixels 720p solves slightly more than twice as high as the PAL format with 414,720 pixels on, but less than half the resolution of the 1080 standards, which includes 2,073,600 pixels.
As currently optimal solution for HDTV transmissions, the European Broadcasting Union recommends the 720p/50-Format.
With 720p resolution (1280 × 720 pixels) as well as no screens made . Full HD LCD and plasma are mainly sold with 1080p display, ie 1920 × 1080 pixels. Low -resolution so-called HD-ready screens provide mostly 1366 × 768 pixels is, but there are also plasma displays with only 1024 × 768 pixels.
In Europe, among others, the channel Arte HD, Das Erste HD, Eins Festival HD, ZDF HD (all Germany ), ORF one HD, ORF 2 HD (both Austria ), SRF put 1 HD, SRF two HD, RTS Un HD, RTS Deux HD, RSI LA 1 HD, RSI LA 2 HD (all Switzerland ), SVT (Sweden), NRK (Norway ), DR (Denmark) and YLE (Finland ) to 720p.
Support in standards
Both Full HD and HD Ready 720p display can represent in full resolution. The label HD-ready includes virtually all HD - capable displays from 720 image lines up. ATSC and Digital Video Broadcasting (DVB) support 720p.