Knowledgebase
What is the difference between the standard non-glare screen and the 95% Gamut option?
Posted by Andrew Richards on 21 June 2013 02:42 PM

NOTE: This Knowledgebase article was originaly written for a 15.6" 95% NTSC panel (which is no longer manufactured) - as such it contains information specific to this panel as detailed below. It will be updated to include information on the upcoming high gamut 17.3" panel shortly.


The explination and advice in the below article is applicable to all high gamut displays.

 

What is the difference between the standard non-glare screen and the 95% Gamut option?

The gamut of an LCD panel defines the portion of that specific colour space that can be reproduced by the panel. In this case, the gamut % is a measure of the NTSC colour space.

In short, the higher the percentage NTSC, the more of the visible colour range can be reproduced by the LCD panel. As a comparison to other colour spaces:

  • an LCD panel which can produce 100% of the sRGB colour space can only reproduce approximately 72% of the NTSC colour space
  • an LCD capable or reproducing 100% of the Adobe RGB space can reproduce approximately 95% of the NTSC space

So you can see that the narrowest colour space is sRGB, then Adobe RGB and then the widest is NTSC.

The average gamut of an LCD panel is 70-75% NTSC which is the rating under which all of our standard glare and non-glare screens full under. The 95% LCD panel option provides a much wider colour space than the standard screens; however this may not be the best option for everyone.

The viewing angles of the standard non-glare vs the 95% non-glare are identical, as are the contrast ratios and response times. The 95% version is an average of 10% less bright than the standard non-glare screen (White Luminance is typical 300 cd/m2 opposed to the 95% which is typical 270 cd/m2).


Why Choose A High Gamut screen and Why Calibrate?

High gamut displays are most useful for professionals who regularly use software that can take full advantage of ICC profiles. They tend to provide a more saturated look which many non-professional users like; colours can seem more vibrant and somewhat similar to a standard screen which has had the saturation level increased in the software control.

For non-pro users, the choice really comes down to personal preference, but in our experience the majority of customers who have compared the standard non-glare screen to the high gamut non glare screen prefer the standard offering.

High gamut screens should always be calibrated and there are several reasons for this:

  • it will align your laptop colour rendering with other monitors that you use
  • it is essential when printing to a high standard in order to make sure that what you see on your screen is accurate to the print result
  • wide gamut screens tend to show over-saturation unless calibrated
  • each panel is slightly different and so each panel should be individually calibrated (although the variance is so small that a generic profile created for the specific screen will usually suffice for all but professional image creators/editors)

When a screen is calibrated, it should really be done in the environment that it is being used in. Reflections on the screen and the temperature of the light shining on the screen (it will look different under tungsten light than fluorescent light for example) can affect the result. High quality screen calibration hardware will measure the ambient light and adjust the calibration accordingly.

We have created an ICC colour profile for the 95% screen which you can find in the “How To Add An ICC Colour Profile To Windows” section below. This profile is designed to provide a calibration under average lighting conditions; however it will not be accurate for every screen or every environment.


Why Do We Not Calibrate The 95% Screens?

For the reasons detailed above, each customer will use their high gamut screen for different uses, under different lighting conditions and with different printers/other PC hardware. For this reason, we have made available a generic profile for the 95% screen. If we were to calibrate each screen separately, they would only be correctly calibrated under Schenker Technologies’ production facility environment. We strongly advise customers who choose the 95% LCD panel to calibrate their screen themselves, in order to gain more accurate colour rendering in their environment.



How To Add an ICC Colour Profile To Windows

Go to Control Panel>Display>Change Display Settings>Advanced Settings>Colour Management

Then click the “Add” button and browse and select the colour profile you wish to use. Once added, you can select the colour profile and “Set As Default”

This is the colour profile that we have created as a generic version for general use, created with a Spyder 4 Pro:

NOTE: This icc profile is for the 15.6"95% panel, it is not for use on the upcoming 17.3" high gamut panel!

http://mysn.co.uk/schenker/XMG_95_nonglare_ICC_profile.icm

This will not be accurate for every screen under all ambient lighting conditions but does serve as a good base for the non-professional user.


Colour profiles in Windows, Photo Viewer and Internet Browsers

Windows 7 and 8 both fully support ICC colour profiles so you just need to add the profile and set to default for it to be applied.

Windows Photo Viewer also works in this way, but if you are using certain calibration software/hardware then you need to make sure that you have created an ICC Version 2 profile. Some calibration software will automatically create a Version 4 ICC profile, but you will be able to change this to Version 2 during the process of creating and saving the profile in your calibration software.

Internet browsers deal with colour profiles in slightly different ways. We suggest that Firefox is the best choice, followed by Internet Explorer 9 for ease and consistency of correct colour profile management when viewing online images:

Firefox – in the address bar, type “about :config”, without the quotation marks of course. Then type gfx into the search bar and look at the information in “gfx.color_management.mode”. The default option is 2 – double click on this line to change the value as follows:

0 – Disable colour management
1 – Enable colour management for rendered graphics
2 – Enable colour management for tagged graphics only. (Default)
You can also download a GUI for Firefox to control colour management here:

https://addons.mozilla.org/en-US/firefox/addon/color-management/

The recommended value for calibrated LCD panels and Windows running a specified ICC profile is “1”, you can read more on this subject here:
http://www.gballard.net/firefox/#config


Windows Internet Explorer 9 – Microsoft supply a tutorial which you can find here:
http://ie.microsoft.com/testdrive/graphics/colorprofiles/default.html


Google Chrome – version 22 and onwards include colour management, however users have widely reported issues with this feature. The following link gives instructions of how to enable it automatically by creating a custom shortcut to the program:
http://klyment.com/serendipity/archives/386-2010.05.17-Activating-Colour-Management-in-Google-Chrome.html


Gaming With A High Gamut Screen

Full screen games generally do not automatically pick up loaded ICC profiles. There are several reasons for this and there is a full discussion of this on the Nvidia forums (please note contrary to the title of this thread, we do not hold Nvidia responsible for this!):

https://forums.geforce.com/default/topic/501853/geforce-drivers/nvidia-forever-ignoring-custom-color-profile-support-in-full-screen-games-collaboration-thread-on-t/

There are several work-arounds to enable correct colour management with a high gamut screen in games, these will be different depending on which game you are playing and we suggest looking at online solutions and discussions for each game title.

This issue does not mean that the game will not play correctly, or that the performance of the game will in any way be affected. It simply means that the colours in full screen games will not be accurate; generally they will appear over saturated with higher red/pink highlights than normal.
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