LCD colour depth

[rylan]

Hmmm at 1600x1200@60Hz thats 115Mpixels/sec. With each pixel being 32 bits, thats 115*4bytes/pixel = 460MB/sec for minimum internal card memory bandwidth, plus whatever is needed for the rendering engine to actually process the data.

According to the ATI spec, the pixel fillrate of the Radeon 7000 PCI card is 332Mpixel/sec (unfortunately they don't give raw bandwidth), so you'd think its enough with a 115Mpixel/sec requirement.

I think if it wasn't using busmastering it would be slow at 16bit also, especially during HD access.

[VJ]

Any idea what is meant with this:

http://www.eizo.com/products/lcd/l568/spec.asp

Display Colors: 16.77 million from a palette of 1.06 billion

The Pit:
I recently purchased this Eizo monitor, and it does seem to give superb quality for photoediting. It is currently configured to switch to sRGB (there is an appropriate icc profile) when any of my photo-editing softwares are launched. I haven't been able to verify how good colours match, though...


Jörg

[borat]

well, putting things down to 16 bit has definately solved the problem, wish i had gone for an old matrox PCI card now, was looking to save a few pennies at the time and was convinced that a radeon 7000 would be as fast as an older matrox card at 2d rendering, live and learn i suppose!
thanks for input

[rylan]

The thing Eizo talks about is using a 10bit internal lookup table on the scalar board in the panel to generate the 8bit color data, so that when you perform gamma correction you don't lose any colors. Of course this assumes the gamma color curve correction is being done in the panel and NOT on your commercial graphics board through windows, otherwise you don't get the benefit (which is pretty dubious because for normal desktop use and even design nobody is going to notice when working with a color display).

Even so you still don't get true 8bit/pixel color depth because of the reasons I mentioned earlier about lcd limitations.

[spadnos]

@rylan: You need to look at the Eizo LCD. It's impressive.

I saw it at a trade show last year. They were displaying the classic black-to-white fade, and it looked perfect - no banding whatsoever. Same deal with color - it was sharp, bright, and vivid. Easily as good as any mid-high end CRT I've seen (and I've seen a lot of CRT's in the photo world). An absolute top-end CRT would probably be better, but not by much.

That said, the Eizo does cost the same amount as a used car

- Steve

[rylan]

I have looked at them. I design high end LCD monitors for work for the medical industry

[spadnos]

Cool! Can you send me some?

Do you design the glass, the controllers, or both? (what company are you with, if I might ask?)

Do you do mostly color or B/W? It seems that a lot of medical stuff is aimed at replacing X-ray film, so it's black+white, but very high resolution.

- Steve

[The PIT]

Originally posted by rylan
I have looked at them. I design high end LCD monitors for work for the medical industry

I'll test one for you if you like.

[VJ]

Hmm, it was a bit cheaper than my car though.. Price currently here is 700 Euro (for the one I linked to); I got it a bit cheaper though .

I chose it because it came out best in a number of tests...

Jörg

[spadnos]

Originally posted by VJ
Hmm, it was a bit cheaper than my car though.. Price currently here is 700 Euro (for the one I linked to); I got it a bit cheaper though .

I chose it because it came out best in a number of tests...

Jörg

Oh - you got the crappy one

The one I was talking about is here:

http://www.eizo.com/products/graphics/cg18/index.asp

- Steve

[rylan]

Hehehe... I design the controler board that sits in the lcd monitor, and have worked on some specialized PCI-X cards to drive the monitors. Yeah the high end displays are greyscale. 1536x2048 and 2048x2560 with active DICOM curve calibration and backlight luminance monitoring.

[Heiney]

Do you guys see the future OLED technology helping color depth?

Still, something to be said for the prices and quality of today's CRTs........

[rylan]

OLED has a long way to go still before becoming an alternative to large format displays (by that I mean >15").

[Kurt]

Originally posted by VJ
Any idea what is meant with this:

http://www.eizo.com/products/lcd/l568/spec.asp

Display Colors: 16.77 million from a palette of 1.06 billion

The Pit:
I recently purchased this Eizo monitor, and it does seem to give superb quality for photoediting. It is currently configured to switch to sRGB (there is an appropriate icc profile) when any of my photo-editing softwares are launched. I haven't been able to verify how good colours match, though...


Jörg

That's the *regular* model

[VJ]

I just checked: when you have a gradient, it isn't always smooth on the Eizo (depending on the start and end colours and the length of the gradient). Dragging that same image to my CRT monitor does yield a smooth gradient...

So, I guess this proves that CRTs still have better colour.
(but no, I'm not returning my Eizo, I love it!)

edit: My Parhelia is addressing them both at <s>16-bit</s> 32-bit, the Eizo is connected via DVI.


Jörg