How do 3M™ computer filters enhance contrast?
Monitor contrast is how bright the display’s characters (information) appear against the background. Increasing the monitor contrast makes it easier to read the information being displayed on the monitor. Contrast ratio (CR) which equals character brightness divided by background brightness (including the effects of ambient light) numerically specifies contrast. The larger the contrast ratio, the brighter the information appears against a dark background. A minimum contrast ratio of three (3) is specified by the American National Standard for Human Factors Engineering of Visual Display Terminals. All 3M™ computer filters improve the contrast by minimizing first surface glare through the use of an anti-reflection coating. In addition, all models uniformly filter out ambient light using a neutral density filter applied to the glass. The “double” filtration of ambient light as it passes through the filter improves contrast significantly by reflecting off the monitor and passing through th
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