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Re: White point for LCD

The Eizos (many of them not just the ColorEdge series) have adjustable color temp also. The adjustment is not accomplished with a graphic card LUT adjustment as the adjustment is made from the monitor. The question of "how" still exists though. Doesn't the monitor have a LUT of it own, hence the "14 bit" and "10 bit" internal LUT claims? I agree with your premiss that you can't vary the color of the actual light output as there is only a single source. It must change the appearance of the white point by altering the color of all pixels.

David

On May 18, 2005, at 3:12 PM, email@hidden wrote:

Message: 6
Date: Wed, 18 May 2005 11:52:13 -0600
From: Andrew Rodney <email@hidden>
Subject: Re: White point for LCD.
To: Mark Rice <email@hidden>,
	<email@hidden>
Message-ID: <BEB0DCED.FF9C%email@hidden>
Content-Type: text/plain;	charset="US-ASCII"

On 5/18/05 11:47 AM, "Mark Rice"  wrote:

I can adjust the white point on my Dell Ultrasharp LCD from 4500K to 9000K
as measured by the eye-one. I have to adjust it to about 5900 K to get it to
visually match a 5000K light box from GTI.

Adjust how is the question? Physically (ala how we can adjust the
electronics for RGB guns in a CRT) or by altering a LUT at the graphic card?
There's a significant difference.

Andrew Rodney
www.digitaldog.net

David Remington
Head Photographer for Collections Digitization
D 40 Widener Library
Cambridge, MA 02138
p	617-496-9346
f	617-495-0403

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