Q. can you also explain all these acronyms, LCD, CRTV etc
A. LCD is Liquid Crystal. Uses a light that is replaceable in most.
Plasma is GAS.
LCD screens are better.
If your going LCD, go HD.
LCD (Liquid crystal displays) &Plasma screens use completely different technology, also have some of the following differences.
LCD displays are used for things such as microwaves, digital watches, laptops etc.
LCD displays are also thinner, have smaller screens than Plasma, and have a better viewing angle.
LCD TV's don�t suffer from �Burn In�.
A �Burn in� is what occurs when an image displayed on a plasma screen is in the same place for too long a time . This usually involves images such as logos of certain channels which remain on the screen.
Flat-panel TV technology - super-thin HDTVs that you can hang on the wall like a painting - have really taken a prime place in the HDTV-buying field
Plasma came first. Color plasma TVs hit the market in 1997 after decades of research.
The technology includes hundreds of thousands of tiny pockets of xenon and neon gas suspended between two panes of glass.
By ionizing the gas in the panel, electrodes within the panel are charged and phosphors in the panel give off light of the appropriate color.
At the time, plasmas were exceptionally thin and amazingly bright, and compared to old CRTs plasma appeared to be the wave of the future.
But plasma technology has its problems
First, the gas-and-glass structure is very fragile, & also reports of breakage during shipping or even getting them from the store to your house are common.
For the first few years, plasmas were notoriously prone to "burn-in," where repeated images (like a TV channel logo in one corner) would leave a ghost-like afterimage on the display.
Finally, all plasmas suffer from a gradual diminishing of brightness over time to the point where the panels will lose half their brightness after about 60,000 hours (based on the latest displays).
LCD technology is really no different than the LCD monitor or laptop screen you are probably more familiar with .
Polarized panels contain a gel of liquid crystal material, with wires criss-crossing the screen to activate the crystals at points as required.
Technologically it is less complicated than plasma, but it doesn't scale to large screens as well/
The largest LCDs are still quite a bitter smaller than the largest plasmas&LCD screens of the same size will be a bit more expensive than a comparable plasma.
Plasmas tend to have slightly better viewing angles than LCDs (meaning you can see the image well even if you're off to one side).
Older LCDs had relatively slow response times, too, meaning that the image sometimes couldn't keep up with the action on the TV, leaving a blur as a character rushed across the screen.
LCDs do have some advantages over plasma, however. First, they are considerably thinner and lighter.
they are easier to mount on a wall because of this & also don't suffer from the gradual decrease in brightness that plasmas do, so LCDs might make for a better long-term investment.
If you're trying to decide between the two, however, you really need to visit a store and check out both technologies side by side.
The difference can be quite dramatic- Plasma's rich colors and glossy screen can be too gaudy for some.
LCD is more muted and less showy (usually with a matte screen like most LCD monitors), but color accuracy can be better than with plasma.
Ultimately it's up to you to decide what looks better to your eye.
Expect the differences in price, brightness& burn-in to slowly diminish to the point where it's hard to distinguish between the two.
Dont' forget about rear projection DLP TVs. New models are coming out that can be mounted to a wall & quality of picture is better than LCD or Plasma
If you don't plan to spend the extra money to mount an LCD or Plasma to the wall, there is no reason to spend the extra money for the Plasma or LCD.
Further, DLP TVs are generally the depth of the DVD player you have sitting under the TV so you don't save any space by putting an LCD or Plasma on the wall &DLP's cost less than plasmas in all screen sizes and less than LCDs in larger screen sizes. DLP's don't loose brigtness over time like Plamsa and can be easily seen from many angles.
Light bulb burn out is not the issue it was like years ago. Go out there and see what looks best to you picturewise.
Just don't spend extra money on an LCD or Plasma that don't
save you any space.
DLP is great, but you really don't have the same viewing angles as you do with a plasma or LCD.
If you sit directly in front of your TV, then DLP will be a good choice, if you don't sit directly in front, you should probably think about plasma/LCD.
keep in mind:!
LCD's use less kilowatts than Plasmas do so they will be a bit kinder on your electric bill.
If gaming will be used, then I definitely recommend an LCD over a Plasma due to the burning effect& the glare factor, If you are placing this purchase close to a window where there is direct sunlight at some point, you may want to go with an LCD, since Plasmas will have a reflection or glaring effect
look for one that you like &seems resistent (especially if you have kids, you don't want them touching the LCD screen to see that 'cool' effect over and over again until they brake it)
I'm sure you know how easy is to scratch an LCD screen if you've used one.
because the technologies are not that different from each other anymore, they have improved Plasmas, LCDs &DLPs a lot and they are all really impressive also the price is pretty much the same and the screen size is huge on all of them, if you want something bigger to to the Cinema :)
Oh and remember if you want a Plasma to hang it on the wall, don't forget you'll maybe need to hook up your VCR, DVD Player and Cable Box.
You may wan't to think about this feature twice before you get it.
basically below is some help i hope.
lcd= no burn in, nice pic for gaming/hd
crt= burn in will happen, do not buy for gaming unless you have a 1000.00 budget and will be careful.
plasma=burn in but nice pic.
Plasma screen = enhances picture
HDTV = enhances picture
I would go with the sony lcd weather its the rear projection lcd or flat panel lcd &samsung's dlp's are nice as well.
CRT is a Cathode Ray Tube. It is basicly the same old fashioned tv you have now but upgraded to perform HD.
Most of these are rear projections like the oldstlye big screens at pizza joints ect.
LCD is Liquid Crystal Display an upgrade on Plasma using similar technology.
PLASMA alike LCD but with a different diode system.
Progressive means that each horizontal line is scanned consecutively.
This is different from interlaced which scans every other horizontal line. Progressive gives a higher quality image.
Both types of Flat-Panel TVs are thin enough to be placed virtually anywhere& produce a picture that is startlingly clear, sharp, and bright.
The only difference that really matters is the screen size. The majority of LCD TVs have a screen that measures 30" & smaller.
TVs with a screen of 32" and larger are typically the domain of the Plasmas.
u can get LCDs that are bigger then 37" u can get LCDs as big as 65".
But plasmas are limited to 37" or bigger.
The difference is LCD uses liquid crystals that either let light through or stop it.
Plasmas have a gas that glows to produce picture.
both are HDTV or atleast capable.
brighter rooms would b suitable for LCDs& plasmas otherwise
sorry if I might have repeated myself, hope this helped.
Digital photography - Which colour space is best?
Q. I just got a DSLR and I've been playing around with it a bit. I was wondering which colour space is best. I've always noticed that the photos I take look quite different on the computer monitor than when printed. Is it because of colour space settings?
Adobe RGB
or
sRGB
What is the difference between the two when photographing, viewing on a computer monitor, and printing? Which is better to use?
So in situations where a regular inkjet/laserjet printing method is used, sRGB is best?
I tried an experiment where I took 2 of the same photo, with the different colour space settings. They looked different on my computer but printed the same off my printer - according to Wikipedia, the printer colour space is smaller than both sRGB and Adobe RGB - does this mean that sRGB is simply a better representation of what results you get with average printing process?
A. If you shoot Jpeg you are using sRGB as does your monitor unless you have a very expensive one. The older CRT (Cathode Ray Tube) monitors will be sRGB, most LCD monitors have a norrower colour gamut, but they are improving all the time.
Some of the more up to date R series Epson printers can reproduce the wider colour gamut of Adobe RGB which will give you brighter blues and reds which is why they have the extra cartridges to accommodate it. Adobe RGB will not be the default setting you have to select it from the driver, Epson assume you are using Jpeg which is only 8bit and for Adobe RGB you need 10bit at least.
You can only take advantage of the wider colour palette of Adobe RGB by printing yourself and using Tiff or PSD as your saved format or using a commercial printer that can handle Tiffs, and even here their printers might still be sRGB, but an increasing amount of commercial printers are offering the Adobe colour space.
There are not many things in nature that require the Adobe colour space may be a few bright red flowers. With man made items such as brightly painted objects, bright red or blue anoraks etc. it will make a difference to prints of these.
Chris
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