CRT vs LCD Problems

[pago cruiser]

I have an ancient 17" Hitach CRT at work, but a (relatively) new 15" Cornea and KDS LCD at home. Reso on the Hitachi is set at 800 x 600. I'm using GK.27 and DivXPro.

Some movies are now displaying perfect on the Hitachi, but really ghosty on both of my LCDs! Screen reso settings on the LCD's does not seem to matter. For instance, the last movie I did was at 576 x 288. Perfect playback on the CRT, but terrible on the LCD's. I then re-did at 576 x 272, and playback on the LCD's become "normal".

This has happened with increasing regularity, and on some movies I now have to encode at X (512 or 576, etc) x 240 in order to get un-ghosty playback on the LCD's. No other encoding changes were made.

Is this a problem with all LCD's in general? I have not yet seen a thread regarding this topic, but I would have really been pissed to have done a couple hundred movies and then discover that half of them are crap when played back on a LCD... :confused:

[hakko504]

This is not a Gordian Knot question. Thread moved.

[pago cruiser]

Hmmm... Sorry for the erroneous posting. But as this problem has ONLY exhibited itself when using Gnot/DivX, I would have that that the problem may be of interest to others as well...

For example, if I ONLY had a CRT and encoded several dozen or hundred movies, I would be totally pissed if half of them looked like crap when I upgraded to an LCD. But thats just me...:D

[mectron]

I have a similar problem. I got a Latop and when i play Divx on it. Almost all the Dark Scenes are blocky but not on the my CTR (or TV). I pluguer the laptop to a CTR and all the artifacts disapear


Maybe LCD are to precise and display too munch detail

[hakko504]

Originally posted by pago cruiser
Hmmm... Sorry for the erroneous posting. But as this problem has ONLY exhibited itself when using Gnot/DivX, I would have that that the problem may be of interest to others as well...
Now, this you didn't say in your original posting. But the core problem still is the difference between LCD and CRT so I think the question should remain here.

I think I have an idea why you see it when you use GKnot and not otherwise: If you follow the recommendations and encode with compression test at 60-75% you may end up in a segment where the problem will manifest itself in the most visible way. I think if you do manual encodes and afterwards check the compression level, you will rarely be in this area, but rather either very close to 100% or much lower (30~40%). That's my experience of doing manual encodes. If you are closer to 100% then the video will probably look very good even on the LCD, whereas the opposite is true for the low quality encodes, i.e. they will look bad on both the CRT and the LCD.

[ReTroAcTive]

if i turn my contrast on my monitor up to 100% i get blocks when i playback dvds. the contrast can soften many of the artifacts you see in your divx files, just turn it down to around 60% to 70%, even lower if the divx is really bad. im really surprised more people dont talk about the contrast setting when they talk about artifacts in divx playback.
so first thing, ide check the contrast settings on both monitors before i did any recompressing.

[Ramirez]

Originally posted by pago cruiser

Is this a problem with all LCD's in general? I have not yet seen a thread regarding this topic, but I would have really been pissed to have done a couple hundred movies and then discover that half of them are crap when played back on a LCD... :confused:
Check this out.. CRT vs. LCD Monitors (http://compreviews.about.com/library/weekly/aa-crtvlcd.htm?iam=savvy&terms=LCD+VS+CRT)Pretty much covers everything.

[OsirisMedia01]

Well despite all the evidence there and here
I could never go back to my CRT, LCD looks and feels so much better.

But if your having problems with it, I guess thats that.

Thought if I had a dual monitor setup id probabky run a second crt monitor, so as not using the LCD one so much. But im not that fortunate to have that setup.