Rod Martin

SDE: Dependent on source or display?

I've seen lots of posts on how the Screen Door Effect (SDE) is greatly reduced at 1080 than it is at 720. Is this referring to the display resolution or the source material?

If I have a 1080 display, will the SDE be greater if I am viewing broadcast TV or DVD as opposed to an HD broadcast, or is it only a concern if my display device tops out at 720?

I want to think that the "lines" are static and don't change in size when viewing a lower rez image - that the display just uses more pixels to display one "720" pixel. Or it could be the display "zooms" in on lower resolution sources. I just don't know.

Thanks!

Roderick Martin
Network23

Jim Mcc

Re: SDE: Dependent on source or display?

At the same seating distance, 1080p will have the least SDE, 720p second least, then 480p the most. It's due to the resolution of the projector.

ChrisWiggles

Re: SDE: Dependent on source or display?

Display resolution.

Please see my: Advanced Guide to Source Options

Rod Martin

Re: SDE: Dependent on source or display?

Thanks!

Roderick Martin
Network23

homevideo45

Re: SDE: Dependent on source or display?

Yes something with the resolution of the projector .