Originally Posted by rajdude
good screenshot Chad!
It shows exactly what I am talking about (bandwidth problems)
I recall correctly, I was talking to Scott (tse) quite some time back and I think it was he who told me:Notice the horizontal 1:1 lines pattern:
The PJ is fully resolving the 1080 horizontal lines....they don’t have any color in them. Pretty much perfect!Notice the vertical 1:1 lines pattern:
Although the PJ is displaying the 1920 vertical lines....the pattern is pinkish. The color shift has something to do with the bandwidth limitations of the projector. In the ideal case, there will be no color shift.
I hope someone more technical than me can chime in here and explain in detail why the pattern is pinkish.....and what exactly are we losing here (in terms of absolute detail)Two tests I recommend:
- Try lower refresh rates (maybe with a HTPC if your Lumagen can’t do it). See if that gets rid of the color shift.
- Try the same pattern on a Digital PJ….i know I know…..but this is all in the matter of science! I bet the color shift will NOT be there.
For testing……on my Office LCD monitor, I do not see any color shift. But in my G70 at home…..the same pattern shows the pinkish colorcast. I am using Displaymate software to display a 1:1 pattern.
It just means the Red and Blue aren't quite as sharp as the Green. It's pretty standard
to get a purplish hue in a 1:1 at that level.
I'd be looking at one colour at a time. Blue is SUPPOSED to be defocused.
Those pictures are pretty good - that's 1080p 60hz right? That's sharper than my XG, and many have said the G70 has inferior bandwidth. Not if that pic is 1080p 60hz, the G70 is just fine.
I think 1080i 96hz is the best res for an 8"er. No judder like 1080p 60hz, no flicker like 1080p 48hz, but you have to try these all for yourself.
PowerStrip timing parameters:
Generic timing details for 1920x1080:
HFP=112 HSW=128 HBP=115 kHz=56 VFP=46 VSW=5 VBP=30 Hz=48
VESA detailed timing:
PClk=126.66 H.Active=1920 H.Blank=355 H.Offset=96 HSW=128 V.Active=1080 V.Blank=81 V.Offset=46 VSW=5
Linux modeline parameters:
"1920x1080" 126.655 1920 2032 2160 2275 1080 1126 1131 1161 interlace -hsync -vsync