fbpx

Summary

        We are in the Digital Era. Everywhere you look there is a piece of technology that runs through electricity or some sort of power. The most used technology of the digital era today are screens. Screens project information given by different input sources used for a variety of reasons. The screen we now all see has a contrast ratio function that will be deliberately discussed in this article.

Definition

        Every screen has a Contrast Ratio. It is defined as “the ratio of luminance or brightness between the brightest color (white) to the darkest color (black) that a display is capable of producing”. The ratio is represented as, a:b, where a is the brightest white and b is the darkest black (Computerhope.com, 2020).

This ratio greatly influences people’s capability to see details on the digital screen. Finer details are seen when the ratio is distinct and higher. It cannot be overlooked that contrast ratio is important for screen quality (Pcmag.com, 2020). “The ratio is derived by the brightest luminance divided by the darkest luminance in candelas per square meter (cd/m2)”. The larger the number, the greater the extremes are. For example, a T.V. screen can appear brilliant in a pitch-black room.

Application

        A contrast ratio of 1000:1 cites that the brightness of a completely white image is 1000 times greater than the brightness of a completely black image. When choosing a screen, contrast ratio is heavily dependent on the lighting conditions of your environment (Lightform.com, 2020). For example, if you are planning to screen in an office space with ambient light, then a lower contrast ratio will be optimal. But if you are planning to put it in an office with a dark environment, then a higher contrast ratio is preferred.
        “Generally, a contrast ratio difference of 500 is considered to be a noticeable difference, but above a certain point, even this won’t be very noticeable” (Babcock, 2020). Higher contrast ratios generally mean deeper blacks, which creates a big difference in overall display quality. Also, the contrast ratio is one of the most important aspects of picture quality. But generally, the environment plays a big role in showing the strength of a contrast ratio. Again, in a very dark room a low contrast ratio will show low display quality but a high contrast ratio will show high display quality.

Sources:

Babcock, A. (2020). Contrast Ratio of Monitors. Retrieved from
https://www.rtings.com/monitor/tests/picture-quality/contrast-ratio.

Computerhope.com (2020). Contrast ratio. Retrieved from
https://www.computerhope.com/jargon/c/contrati.htm.

Lightform.com (2020). Understanding Contrast Ratio. Retrieved from
https://guide.lightform.com/hc/en-us/articles/360010525294-Understanding-Contrast-Ratio.

Pcmag.com (2020). Contrast Ratio. Retrieved from
https://www.pcmag.com/encyclopedia/term/contrast-ratio.