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Everything OLED » Colour Me Green

Monday, April 27, 2009

Colour Me Green


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[Source: Nokia Research, Johan Bergquist] This CIE diagram effectively compares the colur gamut of each device. The pink and red triangles almost intercept each other by the way.
One of the nice things about OLED is the superior green output of the technology.

No, I'm not talking about reducing carbon emissions or saving energy (though that's true as well), but rather the saturation of the green light component of the display. CRTs and LCDs have generally fared pretty well displaying blue and red, but for whatever reasons, the colour green has always fell short, exhibiting some blue pollution and even more red pollution (for more details and info, visit this page). What should be a deep crisp emerald green usually turns into a murky grey-green swamp.

This is where OLED comes in. Glance to the image on the right. It's a CIE diagram showing the output of 4 colour standards - sRGB, NTSC, LCD, and of course OLED. Notice the larger colour gamut of the yellow OLED triangle. Even the red saturation is deeper. Although the blue component has a way to go compared to sRGB/LCD (veering towards green/cyan), the document containing this diagram was published in February 2007, so the tech could have advanced since then.


For a preview of what OLED's green/blue may be capable of, try our very own 'Eclipse of Mars' illusion.

When you finally purchase an OLED screen for yourself, also check out the LCD test site and our own 'test card' which checks for colour, detail and other attributes.

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