What is the Difference between an HDTV's Dynamic and Static Contrast Ratio?

When shopping for a high-definition television (HDTV), a significant consideration is the contrast ratio expressed as 10000:1, for example. An HDTV with a high contrast ratio will produce truer blacks and show more detail in low-lit scenes. This should make it quite simple to spot a good contrast ratio, except there’s a catch. There are two types of contrast ratios: dynamic and static. Understanding the difference will help simplify HDTV shopping. The dynamic contrast ratio is a measurement of the brightest white the HDTV can produce as compared to the blackest black — not necessarily at the same time or in the same scene. For example, some LCD HDTVs use technology that brightens the overall picture in well-lit scenes to achieve very bright whites, and dims the overall picture in low-lit scenes to achieve truer, darker blacks. A measurement of the whitest white in the brightly lit scene compared to the darkest dark in the low-lit scene results in the dynamic contrast ratio ...  more

When shopping for a high-definition television (HDTV), a significant consideration is the contrast ratio expressed as 10000:1, for example. An HDTV with a high contrast ratio will produce truer blacks and show more detail in low-lit scenes. This should make it quite simple to spot a good contrast ratio, except there’s a catch. There are two types of contrast ratios: dynamic and static. Understanding the difference will help simplify HDTV shopping. The dynamic contrast ratio is a measurement of the brightest white the HDTV can produce as compared to the blackest black — not necessarily at the same time or in the same scene. For example, some LCD HDTVs use technology that brightens the overall picture in well-lit scenes to achieve very bright whites, and dims the overall picture in low-lit scenes to achieve truer, darker blacks. A measurement of the whitest white in the brightly lit scene compared to the darkest dark in the low-lit scene results in the dynamic contrast ratio ...  more

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