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Re: White point for LCD

At 01:47 PM 5/19/2005 -0600, Andrew Rodney wrote: 
On 5/19/05 1:22 PM, "William Hollingworth"  wrote:

> With either option, the more you change the white point away from the
> display's native white point, the more displayable levels you loose in the
> process. That is why there is a need for 10 bit LUTs and true 10 bit LCD
> panels.

That being so, and considering how Photoshop uses profiles and it's Display
Using Monitor Compensation, would it be preferable to leave the display
"native" and adjust in the application? I was under the impression that at
least with Photoshop, this is done with 21 bit precision.

I believe you could, however only color-managed windows would have the white point correction. So your desktop, other applications etc. would be incorrect.



> The upcoming NEC LCD2180WG LED based wide color gamut display uses
> individual red, green and blue LEDs as the backlight source. The intensity
> of each LED color can be controlled individually so the display's white
> point can be adjusted without having to modify the display's internal or
> host PC's LUTs. That means that:

Now you're talking! When, how much (if you can say).

This summer. Pricing will be "comparable" with existing wide color gamut displays.



> 2. The black point of the display will also vary with the white point setting.

Can you have control over both so that in essence you can like the Artisan
set a contrast ratio?

By black point I was meaning just the chromaticity of black, not the luminance.

As with any LCD, the minimum value of your black luminance is fixed and you can't go any lower.

You can however add offsets to your lower LUT values to do variable contrast ratios, black point chromaticity correction etc. The point being you can only add to black on an LCD, not take away.

Will 


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 >Re: White point for LCD (From: William Hollingworth <email@hidden>)
 >Re: White point for LCD (From: Andrew Rodney <email@hidden>)



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