How can 768p displays display 1080i?

Energize · 11 Feb 2007 at 18:54

I've noticed that a lot of 768p tvs also support 1080i but how can they do this? I know that lcds can't display interlaced material so the 1920x540 fields are bob deinterlaced and upscaled to 1920x768, but how can the tv display 1920 horizontal pixels when it only has 1366 pixels?

Seft · 11 Feb 2007 at 19:05

TV will scale it.

Energize · 11 Feb 2007 at 19:14

Why do stations waste bandwidth by broadcasting in 1080i instead of 720p then when the picture quality will likely be worse? Practically no one has 1080p displays.

Inazuma · 11 Feb 2007 at 21:04

Since when do stations broadcast at 1080i?

Energize · 11 Feb 2007 at 22:49

SebC said:
Since when do stations broadcast at 1080i?

Sky hd, and there are loads in the usa.

squiffy · 11 Feb 2007 at 22:51

Practically no one has 1080p displays.

I did

stormy · 12 Feb 2007 at 08:02

Energize said:
Why do stations waste bandwidth by broadcasting in 1080i instead of 720p then when the picture quality will likely be worse? Practically no one has 1080p displays.

You would be surprised, lots of LCD TVs from the middle/backend of last year and now in 2007 will be 1080p.

For Blu-Ray, HD-DVD and even PS3 it will better to have a proper 1080p device. A lot of the LCD TV maufacturers are making 1080p displays for screen sizes above 32" (Sharp are even doing a 1080p 32"). 1080p is much more future proof than 720p.

Granted for Terrestrial TV HDTV in the UK is a long, long way of indeed.

For the OP:

http://en.wikipedia.org/wiki/1080i

As stated a 720p TV will just downscale the 1080i picture.