Before comparing different HDTVs available in the market, it is necessary to know the parameters on which basis we can compare them. One of those parameters is ‘Contrast Ratio’.
- Contrast ratio denotes the difference between the brightest whites and the darkest black a display can show.
- The higher the contrast ratio, the greater the ability to show subtle color details. A 500:1 ratio means white is 500 times brighter than black.
- Normally A contrast ratio of 400:1 or higher is good.
- Be careful though. Manufacturers often overstate this number and it's a good idea to compare screens side-by-side with high contrast scenes.
| Panasonic TH-42PX60U 42 | 10000:1 |
| Sony KDL-46XBR2, 46 Inch Bravia XBR | 7000:1 |
| Panasonic TH-50PX60U 50 | 10000:1 |
| Sony KDL-40XBR2 40" Bravia XBR | 1300:1 |
| PANASONIC TH-42PX600U 42" Plasma HDTV Television | 3000: 1 |
| Panasonic TH-50PX600U 50 in Plasma TV | 10000:1 |
| Sharp AQUOS® LC-52D62U | 10000:1 |
| Sony KDLV40XBR1 40" High Definition XBR LCD TV | 7000:1 |
| Sharp Aquos LC-42D62U 42" 1080P High Definition LCD Television | 1200:1 |
| Samsung LNS3251D 32" LCD Television | 4000:1 |
Here are some link if you are looking for more info on this subject :
http://www.jakeludington.com/ask_jake/20051016_hdtv_contrast_ratio.html
http://www.cnet.com/4520-7874_1-5107912-4.html
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