What is Uniformity and how do we measure it?
Uniformity is the maintenance of luminance from one display area to the next. Non-uniformity can be viewed as a gradual shifts in brightness from one area to the next on the display, making the display inconsistent and less pleasing to the eye. Most of the LCD manufactures specify uniformity by measuring the screen luminance at 9 points on the display.
Uniformity is measured as follows
Uniformity = (Lmax – Lmin)/ (Lmax + Lmin) where Lmax (Lmin) is the maximum (minimum) luminance measured with a 10 mm diameter meter aperture over the LCD active area except the last 10 mm area from the edges. For further information on this topic, please call our office.
MetroSpec products consistently maintain a uniformity level of better than 20%.
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