what is the difference between plasma and lcd televisions?
they are getting quite popular in jamaica now and i would love to upgrade. but im confused, i wouldnt want to invest in the wrong appliance expecially the fact that they are so expensive. all you technology geniuses please explain to the island girl.
Tags: difference between plasma and lcd, lcd televisions, Televisions, Plasma, Difference, island girl, BetweenRelated posts:
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LCD will last longer. Plasma is much better picture especially above 42″. You need to be careful which brands and types of both you buy.
there isnt much diffrence really.
lcd is : liquid crstal display and is cheaper thn plasma we have a lcd hd ready and it really good.
There is no guarentee that an LCD TV will outlast a Plasma TV
Both have power and analog and digital circuits
Failues can be “common” by model meaning alot of
one particuliar model will get the problem
or can random meaning a problem that is rare for the model
usually a manufacturing error either of the IC’s or the circuit board
LCD TV’s come in 2 types
Flat screen
a Light source thru a diffuser panel thru a Membrane
of cyrstals that rotate under small electrical currents
allowing light thru or blocking it.
Projection LCD’s use very small LCD’s a vey bright white light source a prism to split into Red Blue and Green
and then backlight the 3 LCD’s and then magnify the image
and bounce it off a mirror to your screen.
These TV’s tend to be built better than flat screen versions
on the circuit level and not as well in cabinetry.
They also have a higher Lamp Repl/consumption rate
Plasma TV is similiar in some ways to standard CRT Tv’s
The main difference is how the phosphor dots are bombarded
with electrons to cause illumination
Plasma TV’s have the highest cost/inches ratio
and the lowest life expectancy of brightness
A Plasma TV will lose brightness over use
and so will the LCD
the difference is replacing the LAMP will restore
the LCD to original brightness
This is very costly in a FLAT screen LCD TV
it can be done by the consumer in projo LCD TV versions
LCD flatscreens are a lot lighter than Plasma TVs which weigh over a 100 lbs. Nevertheless, LCD flatscreens may have limited viewing angles and can suffer from dead pixels. While Plasma TVs are very suspectible to ghosting which is the result of having a fixed image inadvertently left on the screen for a long period of time. This fixed image will literally remain as a ghost image backgrounded to the screen. Usually the solution is to install a floating screen savers which is activated when the screen is not active.
And then there are rear projection LCD’s and DLP’s which use mirror panels and color wheels to filter and project a very large screen image [ranging from 65" to 72" diagonally measured]. The major concern is replacement cost of lamps which usually cost between $200 – $300 and last any number of hours depending on how the TV is shut off. Failing to properly shut down either LCD or DLP units which involves leaving on the main fan running for some 20 minutes — will result in early failure of projection lamps. And there’s the added concern regarding the use of “organic” material which make up the LCD panels/mirrors and usually causes the blue panel to fade over a period of time. So you may have to look forward to purchasing a new LCD projection TV. But getting back to DLP projection TV, there is the issue of viewers seeing the dreaded “rainbow effect” which are color flashes appear in highly contrasty dark scenes. Their sighting can cause headaches and is quite annoying to the viewers. And a possible cure is to choose a color wheel which operates faster than 3X; say 4X which seems to be the threshold speed that virtually eliminates the rainbow effect.
And finally, we should also consider the “ultimate, best” TV technology: “Front Projection.”
You may well want to check out another technology: DLP front projection which produces a movie-like experience of HD television, DVDs, videos and games. And according to Consumer Reports, “front projection has a superior image — better than CRT’s, LCDs or plasma.”
Check out the reviews for a “92″ DLP generated [front projection] TV image at amazon.com by submitting the search query: “Infocus SP4805.*” There are any number of customer submitted pictures of projected HDTV image(s) along with other high-quality regular DVD-movie images projected on bare white wall surfaces. And the price for a refurbished ScreenPlay 4805 is about $325** with lamps costing around $330 which will last around 4,000 hours. Also check out various reviews at Consumer Reports [November 2005 & December 2006] in which front projection is rated “superior” to plasma, lcd.
*www.amazon.com [Query: "Infocus SP4805" and check out the reviews by satisfied purchaser and their on-screen photos.]
**www.infocus.com [Visit Store - Clearance Center - Refurbished HomeTheatre Projectors - SP4805 going for $325!]
Good luck!