[QuadList] True colors--Some suggestions and links to experiential posts about OLED and other monitors

[Ted Langdell]

Hi, Shai,

You might get some suggestions about how to work with particular flat panels if you post the mfr. and model numbers to the list. It's not clear whether you have one make and model... or multiple brands/models.  The latter can drive a holy person to spout gibberish.

Please elaborate on your particular workflow and the equipment and color spaces involved, since it seems you're dealing with images that are beyond HD, and it's not clear just what you have to work with and the outcomes and output expected.

As it applies to SD, and HD if you have HD capable CRT's:

Can you import used, good condition PAL/NTSC/HD CRT monitors into Israel without problems?  If so, you might consider doing that.

Otherwise, keep your best CRT monitor on-line and adjusted and several spares handy:  

In addition to being able to use it as a reference for color, it will also enable you to see issues with interlaced video that an LCD or Plasma may not, since the flat panels convert interlace to progressive before display.

Those include field-rate things like interline twitter in graphics and telecine or editing related issues that are cadence related.  Some may be more NTSC-centric, like 3:2 pulldown when transferring 24fps film at 23.94fps to NTSC's 29.97 fps.

I hope that even though you're in PAL environment, you can set your CRT monitor up to SMPTE bars using the PLUGE platches in the black area, and then see whether you can get your flat panels to come close or match.

That's a bit of a simple starting point... since there are other things that'll come into play.  You need to start with a properly adjusted CRT to begin with.

Different flat panels have different adjustability, particularly when adjustable backlight comes into play.  That can improve the black level if you're in a darker environment and don't need to crank up the backlighting to compensate for a brighter room.

You might want to look back through the TIG (Telecine Internet Group) archives or Wiki to see what recommendations pop up.  The issue of color matching on flat screens has been a regular and frequent topic.
TIG  http://www.colorist.org

There was a recent discussion about using various types of color sensing devices used in monitor setup and matching and how different displays measured and why. OLED was a problem.  See the thread for details.

Look for 	[Tig] An OLED Story
It begins here.  http://tig.colorist.org/pipermail/tig/2011-October/019570.html

and is continues in a "Part 2." a few days later.

There is some scientific measurement info and other anecdotal information from posters' experiences.

Also look for: [Tig] The Present and Future of Reference Monitors

Also for "Reference Monitors," among other phrases.

Search here:  http://tig.colorist.org/cgi-bin/swish.cgi

This is only the tip of the iceberg, but hope this helps.

Ted

Ted Langdell
flashscan8.us 

iPhone:  (530) 301-2931
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ted at flashscan8.us
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On Dec 27, 2011, at 7:00 AM, Shai Drori wrote:

> Please excuse cross posting
> I have come across a problem that I wonder what is the best course of treatment. I have switched my video monitoring from Sony CRT to flat screens. The problem is that the colors look different in every monitor even in PAL video. Is there some sort of a color card or some method for me to correct the colors on the screens so that they "true" as much as possible? I can display several test patterns from my generator.
> Shai Drori
> Freelance





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