Monitors viewing comfort : CCFL backlighting versus LED backlighting ?

Started Mar 5, 2013 | Discussions thread
Alpha Doug
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Re: Bottom line ?
In reply to NewsyL, Mar 11, 2013

NewsyL wrote:

http://www.tftcentral.co.uk/articles/pulse_width_modulation.htm

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Something else..... gamut coverage - standard sRGB and wide gamut (WG).

Most CCFL back lights offer reasonable coverage of the gamut they are designed for. Typically about 96-98% (measured) for standard sRGB gamut monitors and about 100% (measured) of sRGB and 100% of AdobeRGB for wide gamut monitors.

LED's have not been quite as good. Up to a couple of months ago a typical white LED provided about 94-95% (measured) coverage of the standard sRGB gamut. These sRGB units also have a notable spike in the blue spectrum that has to be compensated for.

With wide gamut monitors, a RG+B-LED back light could do about 100% of sRGB and AdobeRGB. RGB-LED back lit monitors are rare and very expensive.

In the past 2 or 3 months we've seen some monitors introduced with the latest generation of LG Display's IPS panels and a new back light system. The new white LED's provide about 98-99% coverage of the standard sRGB gamut while a new GB-LED provides about 100% of the sRGB and AdobeRGB spaces in a wide gamut monitor. These are discussed in reviews of the Dell U2413 (WG), U2713H (WG) and U2713HM (sRGB) monitors on TFT Central. Costs for the GB-LED back lit wide gamut monitors are much much lower than seen with the older RG+B-LED system. I expect a slew of new monitor introductions or updates due the new GB-LED system.

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You're going to have to do a bit of homework....

http://www.tftcentral.co.uk/reviews.htm

http://www.prad.de/en/monitore/reviews.html

I'm wondering what effect using OLED displays might have on this.  Since they are not backlit, I wonder how their brightness and gamut will work out.  In some ways, I understand the impetus to use the widest gamut possible all the way through your workflow, but then to output to printers that can barely handle sRGB is somewhat disappointing.

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