Jump to content

tft or lcd ???


fingermouse
 Share

Recommended Posts

[ QUOTE ]

he asked "tft or lcd"...not "tft or crt" so not sure what he means?

but even cheapo tft's give a great picture nowadays. its only when you want 1600x1200 or higher that you need to think carefully about brand/screen type etc.

[/ QUOTE ]

doh your quite right.. blush.gifsmashfreakB.gif

just assumed CRT. Flush.gif

Link to comment
Share on other sites

[ QUOTE ]

Please note, TFT (plasma) and LCD are not the same technology. This web site is good to help you decide click here

[/ QUOTE ]

TFT is just a particular implementation of LCD technology. As someone else pointed out, it uses Active Matrix technology as opposed to the very old style Passive Matrix technology such as DSTN.

A good explanation of the two technologies is available here http://www.glencoe.com/norton/n-instructor-/updates/1999/51099-3.html

Almost all LCD screens available today will be TFTs.

If you are considering one for a PC, there are a few things to consider.

Resolution is key. Unlike CRTs, LCD screens have a fixed resolution. (e.g. 1280 * 1024). You can work at lower resolutions, but the quality will be reduced as some parts of the screen will be distorted & stretched to fill the available resolution. One way around that is to get a screen with native 1600 * 1200 resolution as this will be able to display an 800 * 600 picture with no distortion or stretching. (Because 800 * 600 is directly mappable onto each pixel of a 1600 * 1200 display)

LCD screens typically have less faithful colour reproduction than CRT screens.

LCD screens have far superior picture geometry.

LCD screens may suffer from stuck pixels. i.e. a particular pixel might be frozen on a particular colour.

The contrast ratios on some LCD screens are not good. In particular blacks can look quite washed out.

LCD screens are more fragile if you have kids likely to poke the screen.

Response times are important if you play DVDs or games. You want a minimum of 16ms response times, and preferable 12ms. Bigger, higher resolution screens tend to have slower response times although there are a few 20" screens with good response times available now.

They do use substantially less power than a comparable CRT screen, and obviously take up much less desk space.

Also if you are susceptible to eye strain and headaches, LCD screens provide a more stable image which might reduce any problems you have with extended PC use.

(I realise the original question asked about TFT or LCD. Given that they are effectively the same, I'm assuming the poster really wanted to know about LCD or CRT).

Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
 Share

×
×
  • Create New...