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What is contrast ratio?

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What is contrast ratio?

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Contrast ratio is the ratio of luminance between the brightest white and the darkest black of a particular device or a particular environment. Projected cinema film, or a photographic reflection print, has a contrast ratio of about 80:1. Television assumes a contrast ratio, in your living room, of about 30:1. Typical office viewing conditions restrict the contrast ratio of a CRT display to about 5:1.

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Contrast ratio is a ratio which demonstrates the range between the brightest point a display can produce, and the darkest point the display can produce. For example, if the contrast ratio is 500:1, it means that the brightest white is 500 times brighter than the blackest black. Contrast ratio is often used in marketing language for both playback and recording devices, and like many “number wars” in the consumer electronics industry, it is very complicated, and consumers should handle it with care. Ideally, contrast ratios would be tested in the exact same conditions, using the exact same procedures, with carefully calibrated equipment and neutral professionals administering the test. Unfortunately, this is not the case, which means that contrast ratio measurements can be extremely variable, and not always very reliable. Companies may test their contrast under various conditions, and using various methods, and the claims they make may be difficult to reproduce. The most popular method i

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Contrast ratio: This is the difference between the whitest whites and the darkest grays a display can show or re-produce on screen. A higher contrast ratio makes it possible to display deeper blacks and more subtle color detail. Good contrast is critical for home theater projectors. In fact, many models include multiple lamp settings that let you reduce brightness and boost contrast ratio for optimum viewing in a darkened room.

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Contrast ratio is the ratio of intensity between the brightest white and the darkest black of a particular device or a particular environment. Projected cinema film – or a photographic reflection print – has a contrast ratio of about 80:1. Television assumes a contrast ratio – in your living room – of about 30:1. Typical office viewing conditions restrict the contrast ratio of a CRT display to about 5:1.

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