Contrast ratio is one of the requirements that most people seem interested in the search for a new HDTV. Contrast ratio is the difference between the darkest dark scene and the brightest bright scene can display the screen. A nice high contrast ratio, like 8000 to 1 or higher, is the image of a living and feel more accurately. The exact ratio depends more on the way the manufacturer chooses to measure, thus maximizing the contrast ratio by you to the> HDTV over another is a dubious plan. But, it is a sure way to improve things, regardless of the television information:
The key is to "trick" your eyes a little. Your eye is Iris (the "opening" of the eye) will constrict in bright light and dilate in darker light, is not it? If your TV room is completely dark is, your eyes are enlarged and sensitive to small amounts of light, so you have to turn down the brightness on the screen to the dark areas appear to be completely black. This alsoreduces the brightness of the bright scenes, so the apparent contrast ratio.
If you place a weak light source, like a small lamp behind the TV in an otherwise dark room, the iris will contract a bit and you can turn the brightness a little. She will still be black as pure black, and have more brightness in bright scenes, resulting in the apparent contrast ratio and makes the picture look better. Constricting your iris also increases the sharpnessTheir vision, like stopping down the aperture of the camera lens increases the sharpness and depth of field. And the dim, diffuse light will not cause glare on the screen as a direct or overhead light would.
Of course, it also helps to determine whether a particular HDTV has stated so well in fact, a contrast ratio than the manufacturer. One way to determine this is to be seen to share where HDTV actual customer reviews. And you may choose from a HDTV Buyer's Guide toGet a more comprehensive picture of contrast ratio and other tech topics.
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