Screen technologies. LCD or Plasma?

People keeps asking me what I would recommend for a home theatre PC (HTPC). LCD or Plasma? In general I would recommend a good LCD. I know that the problems with burn in have been close to eliminated on the best plasma screens. Still, I find the crisp and clean LCD picture with absolutely no burn in problem preferable. A quick roundup:

CRT

Cathode Ray Tube (CRT)
First of all, it is perfectly OK to use your old tube. A standard cathode ray tube (CRT) connected to a PC through S-Video or even composite video should work fine if you adjust your screen card and use a proper media center software. The whole point of these softwares is to give you a front end from your computer that looks good even on low resolution television screens.

A quick trouble shooting tip: if you get a black and white signal from your PC when connecting through S-Video you probably have to select the correct output (S-Video ro Y/C) in your screen settings. If you get black and white when connecting through composite you probably have to take a look at the video format settings. Choosing NTSC when you have a PAL television could give you a black and white picture.

LCD

Liquid Chrystal Display (LCD)
LCD has been used for computer screens for some time. For the last couple of years they have been able to produce them big enough for use as television sets. Only half a year ago it was a problem that the contrast ratio (the difference between black and white) was too low. Resulting in loss of detail in dark and bright scenes. Now, that is about to end. Some of the vendors has introduced LCDs with contrast ratios of 3000:1 and 5000:1. Earlier that was only possible for Plasma displays. Another problem was response time. Bad response times could result in problems with fast moving video. Now, most LCD screens have a response time of 8 milliseconds or better. That should be enough for most people watching video or playing games on their screen.

Plasma

Plasma
Plasma screens traditionally gives better contrast ratio, a more correct black level and in general a slightly more soft picture. Half a year ago a good plasma would without doubt outperform a good LCD in quality for watching movies. Right now that have changed because of better LCD panels. In general you have to pay more for a proper high resolution plasma compared to a high resolution LCD (a resolution of 1280 x 720 or more).

And for the people that want more than a quick round up:
Wikipedia: CRT, LCD, Plasma
Comparison: Plasma vs. LCD TVs

And yes, the pictures in this post are all super close ups of the described technologies. With compliments to my new Canon S2 IS!

Screen technologies. LCD or Plasma?

8 thoughts on “Screen technologies. LCD or Plasma?

  1. sergio says:

    Hi there

    Im looking into buying a tv for my living room. It will be use to watch analog tv, dvd movies and as htpc monitor.

    Im like the sony bravia KDL-V40XBR1 40″ or KDL-40S2000 40″ and sharp aquos 37″
    whicj one do you recommend?

    Is it ok to connect my htpc using the tv pc input or better the hdmi?

    thanks

  2. The Sharp Aquos 37″ comes in many different models, so it is diffecult to recommend anything specific. I think you are looking at several good screens here. Both Sony Bravia and Sharp Aquos seems to be very good screens. Some of the Aquos screes does not have HDMI or DVI inputs. Stay away from those!

    Right now Samsung is claiming some very high contrast ratios on their newest screens. Relying heavily on these numbers is not a good idea because the way they measure contrast ratio is not following any standards. Still, it is very often an indication that you should take into consideration.

    I would recommend having a look at these ones as well:
    http://samsung.com/Products/TV/LCDTV/LNS4052DXXAA.asp
    http://samsung.com/Products/TV/LCDTV/LNS4092DXXAA.asp

    For connection to your HTPC I would absolutely recommend DVI or HDMI. If you choose a screen with HDMI input you might need a converter from DVI to HDMI because your HTPC probably has DVI out and not HDMI.

  3. sergio says:

    Eirikso

    thank you!

    I thought the pc input was as good as the dvi/hdmi.

    Im going to take a look at the samsung lcds.

    By now i like the sony đŸ™‚

    sergio

  4. What they call a PC-Connection is usually VGA. Meaning an analog connection. Ancient technology. There is a big difference on VGA and DVI / HDMI.

    Any LCD or Plasma screens with no DVI or HDMI connection should be avoided!

  5. sergio says:

    Eirikso

    Thank you

    The problem i found with the sony is that they offer only one hdmi input connector.

    I think i may need 2 hdmis. The other solution is connect everything trough the home theater receiver and connect the receiver to the lcd using hdmi.
    But this option will be expensive because my receiver doesnt have hdmi/dvi input/outout đŸ˜¦

    sergio

  6. That could be a problem, but a proper media center replace your DVD, so how many sources do you really have?

    I watch all my entertainment through my media center. The TV is only using ONE input, that’s DVI from my media center. The amplifier is only using ONE input, that’s SPDIF from my media center.

    If I at some point buy a PlayStation 3 I’ll have to do something…

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