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10/13/2015 White Paper: Display White Point Is Specification by Color Temperature Sufficient?

Image quality is one of the decisive factors when buying electronic displays and white point is an important factor in image quality evaluation. An incorrect white point setting will affect the color appearance of the images. In characterizing a white point, the concept of color temperature is often used; hence, the display white point is also known as color temperature of the display.

“Color temperature” is used to describe the color of white light emitted by a light source or display in this context. It simplifies communication of the color of a light source or display which would otherwise be inconveniently described in 2 or 3 chromaticity coordinates (e.g. xy, or u’v’ or tristimulus values XYZ). Another advantage of using color temperature is that the single number provides color information intuitively, whereas a 2 or 3 chromaticity coordinates does not. This is possible because, a low color temperature has a yellowish or reddish white while a high color temperature appears bluish white.

To download this white paper, click here.

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