LCD TV Contrast Ratio

One of the most important factors in deciding which LCD TV to buy is to check it’s contrast ratio. This is a measure of the capacity of the LCD TV to produce both the brightest and darkest colours and is usually expressed as a ratio of their light intensities. The method used to measure the contrast ratio is the source of many disagreemenets so the contrast ratio measured using different methods show different figures.

These disagreements stem from the reluctance of manufacturers to account for the effect of room light conditions while measuring the constrast ratio. It is generally accepted that the contrast ratio should be measured in an ideal room where there is no place for the light from TV to get reflected and all the light that a TV emits is completely absorbed.

There is another method, the Ansi contrast which provides the most realistic ratio as it includes the effects of room into measurement. Ansi contrast is often used to measure static contrast ratio while complete on/off method is employed to measure the dynamic ratio.

Importance of constrast ratio in LCD TV

The contrast ratio is established by contrasting the brightest white that the screen can produce with the darkest black. Therefore, the higher the contrast ratio, the clearer and brighter the picture quality will be, so you should always choose a higher contrast ratio over a lower constrast ratio.

Purchasing an LCD TV with a low contrast ratio reduces the potential impact and clarity of the pictures, so it is a very important consideration in your LCD TV purchasing decision.