HDTV offers up to five times the picture resolution of standard definition (SD) television. Picture resolution is a measure of picture quality and refers to the number of lines and number of pixels per line in the TV picture.
Ordinary SD pictures are broadcast at 720 x 576 pixels, whereas HD pictures can be up to 1920 x 1080 pixels. This means superior picture quality and detail, and more life-like and vivid colours.
HD Screen Specifications
DIGITALEUROPE specifies the following minimum technical specifications for 1080p HDTV-ready displays:
- minimum resolution of 1080 lines and a minimum of 1920 horizontal pixels
- HD input via analogue YPbPr and DVI or HDMI
- the digital HD-capable DVI or HDMI input accepts these HD formats:
- 1280x720 @ 50 & 60 Hz progressive - 720p
- 1920x1080 @ 50 & 60 Hz interlaced - 1080i
- 1920x1080 @ 24, 50 & 60 Hz progressive - 1080p
- the digital HD-capable DVI or HDMI input supports HDCP content protection