09-29-2007 12:12 PM #1
Contrast Ratio? Is it the most important thing?
I'm looking to buy a DLP 50" TV to replace my WD-52525. I'm still unsure if contrast ratio is the most important thing to look for in a TV. I'm wanting a very pretty picture something to compare with my friends Flat Panel LCD which is a 4000:1 Contrast Ratio. The shocking thing to me is it's only a 720p TV, so there went my theory of 1080p.
I've noticed that a lot of DLP's have around the 2500:1 ratio mark and a lot of them don't even list the ratio.
I have yet to see a LCoS or a LCD RPTV list a contrast ratio on any of their products.
I don't know, my Mitsubishi only has 1500:1 and compared to my buddies LCD my TV looks SD or ED if you want.
09-29-2007 01:09 PM #2Member
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Contrast ratio is important to a degree, yes. But my counterargument to those who think it's the most important aspect of a display is that a SD 480i CRT has an "infinite contrast ratio" (in CRT's you can have full-off pixels) and looks like crap next to even a decent LCD or DLP (contrast ratios 1000:1 or higher).
I would still say to go look around and see what you like. The one that looks the best to me is the Samsung HL-T5087S (~ $1500 on Amazon I think) which gives you a 10000:1 ratio.
09-29-2007 01:32 PM #3
well they are important but not the most important.
09-29-2007 02:46 PM #4
I think the extra pixels in 1920x1080 is more important. I just can't see myself getting another 720p set. I want the extra resolution of 1080p. 1080i on 1080p sets is definitely superior to 1080i on the 720p sets.
Don't cheat yourself of those extra pixels.
10-01-2007 12:36 AM #5
Contrast ratio, color accuracy, and then resolution are considered the top three (in order) important characteristics of a display.
Most people (STILL!) don't get that the resolution of your display matters less and less as you step away from it. A 27" 480i display can look 100% as sharp as a 50" 1080p display from (about) 13 feet or so with a quality feed, such as a good DVD.
Contrast ratio is incredibly important, but must be combined with accurate colors.
One of the biggest advantages to digital displays is that they have a lot of inherent benefits which really do make them automatically have great perks over CRT displays. While CRT wins with contrast, the crispness of image inherent to digital is huge. But, CRT tends not to have false contouring issues like digital does. Likewise, digital requires almost zero maintenance to retain a near perfect image, while CRT often deteriorates over time.
Digital is typically much brighter as well!
Brighter, in the daytime, can create an effect of higher contrast even when it isn't actually higher. This gives more punch to the digital displays and may make colors appear more bold and accurate... more lifelike! These all contribute to making digital better overall...
So all you are really left with?
Except, of course, not all digital displays deliver the same ANSI (not full on/off) contrast nor do they have the same color accuracies.
Walk BB/CC and really be critical of all the displays you are looking at, then decide between a few, and play with them for a good bit to see what YOU like.
10-01-2007 01:25 AM #6
So the reason 1080i looks better on 1080p sets is that the 1080p set is actually displaying 1920x1080 pixels, and the 720p is displaying less.
10-01-2007 01:59 AM #7
contrast ratio is a factor when you watch dark films, games and such. i would say the most important factor is........the deal youget for your tv.GamerTag: Brandoshido
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10-01-2007 02:10 PM #8Banned
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Contrast ratio is important, but you would be hard pressed to determine what the ratio is apart from measuring it yourself. The scores on the box and shelf tag are lies.
The most important aspect of a picture is the color accuracy. The second is almost as important because it affects the first, and that's black levels (sometimes called grey-scale). The third is white levels (sometimes called contrast).
I'm not talking about resolution here because HD sets will look good regardless of 720p or 1080p when at the proper viewing distance for that particular screen size. In fact, Runco had a 570p projector that looked better than a lot of 1080p sets!
If you have un-natural colors, the image is bad to begin with.
Black levels are important because this affects greatly the naturalness of colors. If you have grey blacks, the color is off. You also need the detail between black, darker than black, and just lighter than black, otherwise this all is one solid block of color, and that blows. With true blacks, the colors will pop-up (something like contrast). Basically, if you have true blacks and natural colors, it doesn't matter if you have 20,000:1 contrast or 200:1 because your image will pop and be real.
Contrast, or white level, deals with the upper end. If you don't have good white levels you will have "white crush" which makes close-to-white into white, and you end up with a lot of white. I sometimes watch the CBS show Shark, and they pump up their contrast so the bright spots on faces sometimes are too bright and it doesn't look natural (I adjust my TV down to compensate).
10-02-2007 11:27 AM #9
Also, have no idea why HD-DED would say to try to determine ANYTHING regarding pq for walking the aisles of BB and CC looking at displays.
That's probably the absolute LAST thing you should do to figure out which displays are better IMO
There is ABSOLUTELY no way to know what settings are being used on those in store displays at places like these stores. I'm not saying don't buy at these stores, but don't base your purchase on what you see unless somehow you can sit there and tweak all the settings of each individual set.
10-02-2007 02:11 PM #10
What's a good range for the following?
1.) Contrast Ratio (Higher the upper bound the better).
2.) Color Accuracy (Gray Scale, not sure how it's rated).
3.) Brightness (Higher the better).The nerd is a tirelessly predictable creature whom the promise of boobies is like a bacon sandwich to a starving wolf. - Yahtzee
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10-02-2007 03:30 PM #11Banned
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The reason they do this is because in the late '90s there was a time when computer monitors were competing with each other on "contrast" ability. It became a buzzword, and people inflated their numbers to make them look better on the side of the box than their competitor.
The end result is a TV that's properly calibrated will look better than another TV that might have better specs but is using standard settings. This is why TV reviews are important, because they can tell you if the TV has processing problems, color problems, etc.
10-03-2007 08:35 PM #12
It's kinda like how they probably find a great-looking BD/HD disc that has just an average or mediocre DVD release (and use a low-cost DVD player too) for those comparison displays.
10-08-2007 11:50 AM #13
Don't just go "Oh, that one looks good" and buy it.
Do your homework, read reviews, then if you have that Panasonic vs. Pioneer question (several $$$$ difference in price!) then someone may go into a store, see the Pioneer and decide that it is worth the extra cash after tweaking both sets for a bit.
Or better yet, they will avoid the Vizio LCDs because they try them out and see just how lousy they actually are compared to much of the competition.
One of the most popular displays - Westinghouse LCDs... I have never seen one in-store or at a home that has looked good.
So, while the stores may be 'tweaked' for in-store performance, it is fairly easy to see which ones really are lousy and not worth wasting money on.
10-08-2007 02:35 PM #14Banned
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The average human eye can only distinguish about 500 shades of gray with perfect lighting conditions. What this basically means is a 500:1 ratio is about the best we can perceive.
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