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Forums > Digital Art and Retouching > LCD vs LED - Colors and Tone Search   Reply
Retoucher
Kyle Goulden Retouching
Posts: 18
Johannesburg, Gauteng, South Africa


I've read a lot of mixed reviews on the topic and I still have yet to get a clear answer, so hopefully yall have an idea. smile

So...
I have two screens - one LCD and one LED.
My calibration hardware ( Spyer 3 ) was stolen about 3 weeks ago so I cannot use that to color correct the screens, and also to my memory, it did not have an LED option.

So heres my question -
Which of these two are more accurate in tone and colors?
Im working purely off the LCD ( by my entirely unscientific reasoning ) because more views on the internet would have LCD's and thus the color matching of the standard profiles would be closer.
75% of my work is for internet use only.

So the question again -
1. Which of these two screens are more accurate in tone and color ? ( As they are different in both those regards )
2. How would you Calibrate them ?
Mar 18 12 02:44 pm  Link  Quote 
Retoucher
Pictus
Posts: 991
Teresópolis, Rio de Janeiro, Brazil


Compare a print with the monitors and look who is better
Here a target to print(must ask the print bureau guy to not do any edit)
http://dl.dropbox.com/u/4686872/PDI_Target_sRGB.jpg

SOFT PROOFING PHOTOS & PRINTS
http://www.cambridgeincolour.com/tutori … oofing.htm

Using Printer Profiles with Digital Labs
http://www.drycreekphoto.com/icc/using_ … ofiles.htm

Both are LCDs, the difference is the back light http://www.tftcentral.co.uk/articles/le … ghting.htm

The quality depends on many aspects like panel type(TN is bad)
see http://www.tftcentral.co.uk/speccontent … nel%20type

Check the reviews
http://www.tftcentral.co.uk/reviews.htm
http://www.prad.de/en/monitore/reviews.html

Sadly to calibrate you need a Datacolor/X-rite device...

I doubt that will be good, but until you get a calibration
device, try with the profiles from
http://www.tftcentral.co.uk/articles/icc_profiles.htm
if your monitor is in the list.
Mar 18 12 03:14 pm  Link  Quote 
Photographer
Neil Snape
Posts: 9,456
Paris, Île-de-France, France


^^

As the LCD has to be backlit with something.

Fluorescent tubes have some peaks so colour repro is a bit spiked in certain colours. LED have a better spectrum of light within the wavelengths they are designed to output to.  The best monitors have three colour LEDs to make the best blend and extension possible.

I have a crazy monitor 2480zx HP the highest gamut commercial available...still after many years.


Unfortunately monitors rarely work well without hardware calibration. Many do come with profiles but for what video card they were made on who knows.
Mar 18 12 03:22 pm  Link  Quote 
Retoucher
Aleksandr Olkhovskiy
Posts: 164
Novosibirsk, Novosibirsk, Russia


2. How would you Calibrate them ?
I don't understand, you want to calibrate monitor without your spyder, by eyes ?
Mar 18 12 03:24 pm  Link  Quote 
Photographer
Andrew Somers
Posts: 1,032
Los Angeles, California, US


Kyle Goulden Retouching wrote:
I've read a lot of mixed reviews on the topic and I still have yet to get a clear answer, so hopefully yall have an idea. smile

So...
I have two screens - one LCD and one LED.
My calibration hardware ( Spyer 3 ) was stolen about 3 weeks ago so I cannot use that to color correct the screens, and also to my memory, it did not have an LED option.

So heres my question -
Which of these two are more accurate in tone and colors?
Im working purely off the LCD ( by my entirely unscientific reasoning ) because more views on the internet would have LCD's and thus the color matching of the standard profiles would be closer.
75% of my work is for internet use only.

So the question again -
1. Which of these two screens are more accurate in tone and color ? ( As they are different in both those regards )
2. How would you Calibrate them ?

First, "LCD" and "LED" screens are both LCD as far as the display technology is concerned.

The only difference is the former is LCD with a florescent backlight, and "LED" is an LCD with an LED backlight. This may or may not be an issue, depending on the CRI of the florescent backlight.

I have an NEC wide gamut display (PA271W) that uses a florescent backlight and has an internal 14 bit LUT, and it is "more accurate" than many LED type displays.

So as for "which is more accurate" - neither...or both. There are other aspects of monitor technology that are more related to accuracy, such as a monitor with an internal LUT, etc. But LED vs Florescent does not "necessarily" mean that one is better than the other.


For the WEB, the color space standard is sRGB. Most modern monitors are aimed at the sRGB standard.


As for losing the Spyder - good, the spyder is a poor excuse for a calibrator. Get an XRite calibrator (i1 Display). And then ideally get BasICColor Display software.

Mar 18 12 03:40 pm  Link  Quote 
Photographer
Ky Goulden Photography
Posts: 64
Johannesburg, Gauteng, South Africa


I don't understand, you want to calibrate monitor without your spyder, by eyes ?

Well - my spyder is gone , but Id like to know which hardware would be best to calibrate with, as there are a few rental places nearby which might have the hardware.
Mar 18 12 03:48 pm  Link  Quote 
Retoucher
Aleksandr Olkhovskiy
Posts: 164
Novosibirsk, Novosibirsk, Russia


Ky Goulden Photography wrote:
I don't understand, you want to calibrate monitor without your spyder, by eyes ?

Well - my spyder is gone , but Id like to know which hardware would be best to calibrate with, as there are a few rental places nearby which might have the hardware.

i1display pro (its quite precise, works with all backlight types(has correction files), supported by most current software etc)

Mar 18 12 03:54 pm  Link  Quote 
Retoucher
Pictus
Posts: 991
Teresópolis, Rio de Janeiro, Brazil


This test http://www.drycreekphoto.com/Learn/Cali … dware.html
shows that the X-Rite i1Display Pro/ColorMunki Display is the best bet as the DISCUSS is too expensive.
Mar 18 12 03:57 pm  Link  Quote 
Photographer
David Hirsh
Posts: 2,379
Toronto, Ontario, Canada


Aleksandr Olkhovskiy wrote:
i1display pro (its quite precise, works with all backlight types(has correction files), supported by most current software etc)

+1

I own the same one, and it's excellent.

Mar 18 12 03:58 pm  Link  Quote 
Photographer
PE Arts
Posts: 1,040
Falls Church, Virginia, US


the led backlights give you more undithered colors (95 to 105% of srgb) in the srgb colorspace then using flourescent tubes which can only provide (65% to 85% of srgb)
Mar 18 12 08:11 pm  Link  Quote 
Photographer
Leighthenubian
Posts: 2,796
Toronto, Ontario, Canada


Aleksandr Olkhovskiy wrote:

i1display pro (its quite precise, works with all backlight types(has correction files), supported by most current software etc)

+1

This is the only system that has worked for me consistently with LED monitors...quirky technology to calibrate properly.

Mar 19 12 06:26 am  Link  Quote 
Photographer
Neil Snape
Posts: 9,456
Paris, Île-de-France, France


iseethelightman wrote:

+1

This is the only system that has worked for me consistently with LED monitors...quirky technology to calibrate properly.

The i1 Pro spectro is every bit as good. I have both, of course, and actually did testing before the release of both and a few others.

I cannot agree that the Spyders are that bad. Just like X-Rite sometimes they match up well, others not. It is usually a question of software, chasing OS updates, and manufacturers that is hard to keep up with to provide a customer with an adequate solution in every case.

Mar 19 12 06:36 am  Link  Quote 
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