What is High Definition TV? What is High Definition TV?

Last Update date : 2011.01.16

 

What is High Definition TV?

 

 

 

 

What is High Definition TV?

HDTV is the most exciting television innovation since the introduction of colour TV in the 1960s. HD resolution substantially increases the number of lines and the pixels per line in the television picture. Conventional TV’s use up to 625 lines a HD Ready TV will use at least 720 or 1080 lines to project the image on to the panel. Therefore a HD Ready TV will greatly improve the colour and overall picture quality.

The benefits of High Definition

Always look for the HD Ready logo, this ensures the TV has met the above requirements for the minimum High Definition standard. Using the latest technology HDTV produces the richest colours the sharpest images possible. HDTV allows you to experience Television like never before with the widest range of colours and the clearest images ever seen on a TV. High Definition contains four or five times as many pixels making the image much clearer than standard definition.

Broadcasters such as Sky and the BBC now offer an HD service and many film publishers are also recording in HD formats.

 

Technical information

1. A display device has to cover the following requirements to be awarded the logo “HD ready”:
- The minimum native resolution of the display or display engine is 720 physical lines in wide aspect ratio.

2. Video Interfaces (connectivity)
- The display device accepts HD input via:

  • Analogue Component  (YPbPr1),
  • DVI or HDMI

 - HD capable inputs accept the following HD video formats:

  • 1280 x 720 @ 50 and 60Hz progressive (“720p”), and
  • 1920 x 1080 @ 50 and 60Hz interlaced (“1080i”)

 - The DVI or HDMI input supports content protection (HDCP)

 

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