What is contrast ratio?

Contrast Ratio

The contrast ratio is a property of a display system, defined as the ratio of the luminance of the brightest color (white) to that of the darkest color (black) that the system is capable of producing. A high contrast ratio is a desired aspect of any display. It has similarities with dynamic range.

Read more about Contrast Ratio.

Some articles on contrast ratio:

Contrast Ratio in A Real Room
... In marketing literature, contrast ratios for emissive (as opposed to reflective) displays are always measured under the optimum condition of a room in total ... In typical viewing situations the contrast ratio is significantly lower due to the reflection of light from the surface of the display, making it harder to distinguish between ... How much the room light reduces the contrast ratio depends on the luminance of the display, as well as the amount of light reflecting off the display ...
OLED - Manufacturers and Commercial Uses - Samsung Applications
... inch laptop OLED display concept, with a 1,280×768 resolution with infinite contrast ratio ... The contrast ratio is 100,0001, and the luminance is 200 cd/m² ... The panel has a contrast ratio of 1,000,0001, a colour gamut of 107% NTSC, and a luminance of 200 cd/m² (peak luminance of 600 cd/m²) ...
Large-screen Television Technology - Display Specifications
... Contrast ratio This is defined as the ratio of the luminance of the brightest color to the luminance of the darkest color on the display ... High contrast ratios are desirable but the method of measurement varies greatly ... Static contrast ratio is measured on a static image at some instant in time ...
Bright Side Technologies
... As a result, the device can display true black and very bright white, with a contrast ratio technically of infinity, where minimal luminance is 0 cd/m² (the denominator) and maximal luminance is almost 4,000 ... To address the confusion that may accompany a display with a quoted contrast ratio of infinity, Brightside calculates its quoted contrast ratio using the next-dark ... be available Q2 2010 with 16 bits per color, and a contrast ratio of 1,000,0001 (19.9 stops) ...
LCD Television - Comparison - Image Quality - Contrast Ratio
... This limits their contrast ratios to about 16001 on the best modern sets, when measured using the ANSI measurement (ANSI IT7.215-1992) ... Manufacturers often quote the "Full On/Off" contrast ratio instead, which is about 25% greater for any given set ... This lack of contrast is most noticeable in darker scenes ...

Famous quotes containing the words ratio and/or contrast:

    Official dignity tends to increase in inverse ratio to the importance of the country in which the office is held.
    Aldous Huxley (1894–1963)

    By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.
    Owen Barfield (b. 1898)