The purchase of an HDTV is a significant one and should not be taken lightly. When evaluating the overall picture of an HDTV, the contrast ratio, along with screen resolution, should both be taken into consideration. However, if a person is looking for one that offers the brightest colors and darkest blacks, then the contrast ratio should be the number one priority.
The contrast ratio is defined as a measurement of the ratio between the brightest color (white) and the darkest color (black) that a television can produce. The televisions that offer the best pictures are the ones able to produce the darkest blacks and brightest whites. In most cases, it should be noted that contrast ratio tests are performed by the manufacturer.
Unlike most product tests, there is not a standard procedure for measuring the contrast ratio. Each manufacturer determines their own method to measure the ratio which makes it almost impossible to compare different models. However, ANSI (American National Standards Institute) has developed a test using a checkerboard panel to measure both the white and black simultaneously. The conditions of the room will play a role in the results of the ANSI test, but many companies now use this method to test the contrast ratio.
Another method used to measure contrast ratio in HDTV is called the “full on full off method” and it measures the ratio between a pure black and pure white screen. The test will usually produce a higher contrast ratio but it is not a good representation of realistic viewing conditions.
The average consumer does not know what produces the sharpest colors and most would not assume that contrast ratio play such an integral part. The picture on an HDTV is made up of hundreds of thousands of tiny pixels and each of them is arranged to form complete pictures. Models with the best pictures are distinguished by their precision in separating the black pixels from nearby lighter pixels. Many companies are constantly looking to refine their technology to combat what is called “light leakage” in the industry.
When comparing the different types of televisions, plasma TV’s generally offer the highest contrast ratios among their competitors. In fact, certain companies’ advertising ratios are as high as 1,000,000 to 1. Today LCD and LED models have since been able to close the gap between their contrast ratios and plasma contrast ratios.
One thing to remember regarding contrast ratio is that it does not play a role in how well motion is displayed. HDTV delivers an incredibly superb picture so it is important to select a television with a good contrast ratio. After all, one should not waste the features of an HDTV by using an old television with a poor contrast.
For consumers who are regular viewers of HDTV and HD movies, then televisions with high contrast ratios will be the most logical choice for their homes. No matter what type of television, whether it is plasma, LCD or LED, the screen resolution should always be taken into consideration. By considering all the facts regarding contrast ratio and resolution, people can select the right televisions for themselves.
Zeeman Haus enjoys writing articles online on a variety of subjects. You can check out his latest website on 7 Inch LCD TV which reviews and lists the best LCD TVs to help you pick the best one for your needs.
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