Resolution Front Projector (1 Viewer)

[Bob_M]

Hi All,

If a standard DVD is in VGA (640 x 480) resolution, what happens when we play the imgae on a XGA front projector? Does the projector just use 640x480 or does it use an up conversion.

Thanks

Bob

 

[Rick Guynn]

It depends on what you set the projector to. There is usually a 'through' mode that will take the input as a 1:1, in which case it would only use 720x480 (native DVD resolution)pixels. Most times you would leave it in full mode and yes, then it would scale the picture up to the native panel resolution.

RG

 

[Bob_M]

RG

>then it would scale the picture up to the native panel resolution.<
Does that improve the picture quality at all. Not as much as if the souce has all the detail I am sure.

Bob

 

[Rick Guynn]

It depends. Some scalers used in projectors aren't very good, which is why alot of people use HTPCs with projectors. They use the PC to do the scaling (as well as the deinterlacing) and feed a 1:1 picture to the projector.

On the other hand, some PJs have decent scalers and the DVD would look pretty good. When you go to scale a DVD up, the quality you get is largely dependent on the quality of the transfer, because by scaler is essentially magnifying everything.

RG