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Posts Tagged ‘LCD’

Everybody can see the difference between a good and a poorer picture quality. However, it is very hard to define for an average consumer what is picture quality. Contrast ratio is one very important element of picture quality, followed by color saturation and accuracy. Resolution should also be considered.

Contrast ratio is the ratio between the darkest and the brightest color your HDTV can produce. Obviously, the higher the contrast ratio is, the better your system is. Low contrast ratio means washed out pictures, dull images and lost details. In the recent years contrast ratio had been greatly improved. Best contrast ratios have a price premium, but technology is getting cheaper. At this time, even the low-end HDTV’s have decent contrast ratios.

Black levels are also very important for good picture quality. Good black levels mean you see absolute blacks, not greyish blacks. Poor black levels can be especially annoying in dim light conditions, because this is when your eyes are very sensitive about blacks. Lot of people achieve absolute black by setting the black levels too low: by doing this you may have absolute blacks, but black shadow details will be lost. Another important aspect of picture quality are the high white levels.

High white levels make images vivid and lively, and it is also makes daytime viewing more pleasant. Just as with the blacks, it is not a good idea to set the white levels too high, because details can be lost.

Color temperature, saturation and accuracy are also important elements of picture quality. The natural light temperature is 6500K, and this is the standard for setting the color temperature. Color temperature is below this will be yellowish or reddish, if above, will be bluish. Setting color temperature correctly is important because this can influence every color on your screen.

The color saturation of your HDTV can be adjusted by using the color patterns that come with calibrations discs or TV channels. Color accuracy is a function of how your system decodes image data. Color accuracy is a wide topic: if you don’t want to be a pro, it is enough for you to know that the color reproduction is accurate when the color encoding used in film production match the decoders of your HDTV.

Color reproduction is also affected by factors like greyscale and the display characteristic (gamma) of your TV. But this is beyond the beginner-level image calibration. If you find this is an important issue, you will have learn about image calibration, or you will have to pay a specialist to do this.

The latest HD resolutions provide 5 times more pixel amount compared to Standard Definition. As a result, image is not simply clearer, but there is night and day difference: the smallest detail can be noticed on the image. If you want to have the best, go for 1080 capable HDTVs.

Percieved sharpness also relates to resolution, and is similar to the edge contrast concept used in photography. Users can artificially sharpen the image by creating a crispier edge along the image border: this gives the impression of better image quality. Oversharpening is a mistake, because this creates halo artifacts around images.

Edward McKellen is an HDTV expert who writes HDTV reviews for HDTVreviewlab.com. To check out the latest Sharp HDTV reviews or learn more about HDTV televisions visit HDTVreviewlab.com

Looking for that new TV set? You’re no doubt looking for a LCD (or liquid crystal display) TV, but know all too well that they can be very expensive, especially the high definition LCD models. This is true, but there are in fact discount priced LCD TVs out there to be found. Post holiday sales when retailers pull out all the stops price wise in a mad scramble to get customers into their shops can be an excellent time to find LCD TV sets at a bargain price.

Some internet sites and stores will offer “out of the box” deals.  LCD TV’s that have been used a displays sold at a discount.  They are brand new but without the box and sometimes the paperwork. The price may be so far below the retail price it may be worth missing the box or paperwork.

Another option for discount LCD TVs is of course to buy last season’s model; make sure that the features you want are all present in the model you’ve been eying up at your local electronics shop. For instance, it is important to remember that not every large screen flat panel unit is necessarily high definition. The consumer should carefully check specifications of each model before buying. These models may in fact be high definition, enhanced definition, or neither of those things. The common assumption is that if it walks like a duck does not always hold true here.

So now that you have a few tips on where, when and how to look for a bargain on a LCD TV, what model should you be looking for? That all depends – the best LCD TV for you may not be exactly what someone else wants from their set. Think about your needs and wants before you go shopping for that LCD set.

Here are a few general rules of thumb to keep in mind when looking for that perfect TV set. If you play a lot of computer games or would like the option of using your television as a monitor for your computer, you’ll want a model with an input for that; the best HDTV’s will have these and are excellent at displaying images and data from computer input sources. Other than that feature, the top concern for most is color accuracy and contrast. Inferior models tend to have lower accuracy and less contrast, while the better ones will have greater levels of both. The best way to evaluate this is to look closely at several different LCD TVs and compare the darkness of dark colors, especially blacks on each. The darker they are able to render black, the better the color accuracy and contrast.

Regardless of which model you’re looking for, a LCD TV is almost certainly in your future. The cathode ray tube based television is rapidly becoming a thing of the past. Due to their high quality, sharp pictures and lightness (a great thing, anyone who has ever struggled with an old console TV set up several flights of stairs will tell you), they are certainly the wave of the future for home entertainment systems.