LCD TV или PLAZMA TV что лучше?

[Pasha74]

LCD TV или PLAZMA TV что лучше?

[Sleepwalker]

Они одинаковы.
Но!
У плазмы выше contrast ratio.

По этому единственному показателю плазмы превосходят LCD

[Georgio]

Плазма иляктричиства кушает в разы больше. А лучший ящик по нынешним временам - LED.

[Pasha74]

Сообщение от Georgio

А лучший ящик по нынешним временам - ЛЕД.

ссылочку на цену плиз

[Georgio]

От полторы штуки и выше.

[esker]

led это всё равно lcd, только подсветка ledовая

[Федор_Л]

<только подсветка ledовая>
Что поднимает <contrast ratio>. Я вчера тоже в магазине уперся в него глазами... , но дорого. На pixmani-и за 32" - около 800 рублей.

[Georgio]

Вот, случайно наткнулся на довольно неплохое описание различий всех трёх типов:


Plasma
This is essentially a grid of cells filled with mixtures of noble gasses (Xenon, Neon and Helium) as current is passed through these cells the gas excites a phosphor coating and makes it glow at roughly 1000 lumens (a conventional 100w lightbulb glows to 1500 lumens) the same technology that allows fluorescent strip lights to work.
Essentially its a large array of fluorescent bulbs.

The benefit of this is that you get an insanely high contrast ratio due to the fact there's no back light which improves the realism of an image, the downside is that it takes a lot of power to work so expect it to make a dent on your electricity bill.

Another downside is that although plasma has a wide gamut of color it has difficulty reproducing certain frequencies accurately not that this is really an issue unless your a serious videophile who uses screens as a cock measuring contest.

Another serious downside is that they work in much the same way as CRT televisions and are subject to phosphor burn in.
Leave it on a channel long enough and those icons like SKY 1 etc wind up permanently burned into the screen.

Manufacturing costs are high with plasma so they're not cheap.

LCD
This tech is more a series of filters than anything else.
Start with a back light which emits light.
This hits a polarizing layer which makes sure only waves aligned horizontally can pass.
This is passed through a grid of liquid crystals untill it comes to the next polarized layer which only allows vertical waves to pass through.

When nothing is running no light can pass through the system, both layers cancel each other out, its only when voltage is applied to a cell that the crystal will bend the light from horizontal to a vertical wave allowing it to pass through.

The advantages of this is that it requires very little power to run the actual crystals, the bulk of the power is consumed by the back light.

There are serious drawbacks to LCD displays though.
First off they only like to work in native resolution, if its a 1440x900 panel then displaying resolutions other than that become sketchy at best, things will look jagged and riddled with artifacts, this is why standard TV 720x576 will look completely garbage on a high definition LCD screen.

Secondly because its back lit the contrast ratio is generally lower giving pictures a more artificial feel to the human eye.

Thirdly is the response rate, this tends to be higher than any of the other technology, meaning that it takes considerably longer between drawing one picture to clearing the screen and drawing the next one. in a nutshell this causes ghosting and blurring if a scene is fast paced, say a car race or a football match or an action movie.
Games are sketchy also unless its a high quality panel with low response time.

LCD's are mass produced nowadays and relatively straightforward to manufacture so theyre relatively cheap.

OLED
The new kid on the block, Organic Light Emitting Diode Displays are formed from rows and columns of led's that have an organic substrate.
Its essentially the best of both worlds, think LCD without the back light, so they use considerably less energy than an LCD and orders of magnitude less than plasma, they're also exceptionally light.
Plasma screens weigh a ton, LCD's are heavy and OLED's are almost weightless, the bulk of the mass is composed of the circuit boards and the housing.

The advantage is that the displays can be printed from a standard ink jet printer, meaning manufacturing costs are significantly less, this also has the bonus of meaning you can have a curved display that wraps around your field of vision, think of a screen that you can see even out the corners of your eyes, so you can have a totally immersible setup.

The downside is that LED's burn out fairly quickly so a tv would only last around 5 years before needing replaced.

There are only a few displays on the market at present, but expect them to take off in a big way soon enough.

[Cuore Sportivo]

Плазмы уже не выгорают.
У плазм сейчас есть специальная настройка которая постоянно двигает картинку , чтоб логотип канала не стоял на месте.
И еше ...на дешевом LCD невозможно смотреть футбол, картинка мажется

[макс унылый]

Точно не уверен, но по словам моего кума ( один из лучших мастеров по ремонту в каунти Корк) лсд лучше. Если надо разъяснение, то спрошу и напишу.

[YellowMan]

LED, plasma, LCD - в таком порядке по качеству картинки ИМХО.

[TYA]

Сообщение от Georgio

Plasma
...

Про плазму уже устревшая информация, уже как лет 5 не выгорает, потребление может быть только чуть больше, большие размеры экрана дешевле. Ну и картинка несомненно лучше. Lcd всю дорогу пытаются догнать плазму.

TYA добавил 21.10.2009 в 10:52

Сообщение от Pasha74

LCD TV или PLAZMA TV что лучше?

http://virtualireland.ru/showthread.php?t=19717
http://virtualireland.ru/showthread.php?t=14627