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What to look for in an HDTV? - Page 2

post #11 of 23
Thread Starter 
Thanks for all the info guys, I'll definitely check some out in-store.

Regarding "Hz", how does it help if the media is only 24-30 Hz?
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post #12 of 23
Well because movies/TV is 24FPS to 30FPS (generally), you want a TV with a refresh rate of 120Hz (LCD), 240Hz (LCD), 480Hz (plasma) or 600Hz (plasma) because essentially, 24 and 30 are multiples of all of those refresh rates.

This is important because if you have say a 60Hz TV, your TV has to repeat frames to display 24FPS........now 60/24 isn't a perfect division (=2.5) so as such, you can get artifacting and screen tearing/jittering when watching 24FPS material. So by getting a TV with a refresh rate where 24 is a multiple, you get a clearer, smoother image since 120/24 = 5, 240/24 =10, 480/24 = 20, 600/24 = 25. So the TV has a much easier time displaying the 24FPS film since it repeats each frame an exact number of times. You'll also notice that 30 is multiple of all of those refresh rates as well.

I'm not entirely sure why plasma has such higher refresh rates, probably just because of the difference in the technology compared to LCD.

But in a nutshell, thats why TV refresh rates matter for watching TV/movies
Edited by Vengeance47 - 2/18/13 at 9:10am
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post #13 of 23
Panasonic Plasma, /thread.
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post #14 of 23
Quote:
Originally Posted by Vengeance47 View Post

Well because movies/TV is 24FPS to 30FPS (generally), you want a TV with a refresh rate of 120Hz (LCD), 240Hz (LCD), 480Hz (plasma) or 600Hz (plasma) because essentially, 24 and 30 are multiples of all of those refresh rates.

This is important because if you have say a 60Hz TV, your TV has to repeat frames to display 24FPS........now 60/24 isn't a perfect division (=2.5) so as such, you can get artifacting and screen tearing/jittering when watching 24FPS material. So by getting a TV with a refresh rate where 24 is a multiple, you get a clearer, smoother image since 120/24 = 5, 240/24 =10, 480/24 = 20, 600/24 = 25. So the TV has a much easier time displaying the 24FPS film since it repeats each frame an exact number of times. You'll also notice that 30 is multiple of all of those refresh rates as well.

I'm not entirely sure why plasma has such higher refresh rates, probably just because of the difference in the technology compared to LCD.

But in a nutshell, thats why TV refresh rates matter for watching TV/movies

Your information is kind of wrong.

All HDTVs are 60hz. They use FRAME INTERPOLATION to achieve the effect as if they had higher refresh rates. The panel it's self still runs at 60hz.

Also, Plasma screens are still 60hz. The 600hz of a Plasma is how many times an electric pulse is sent to each cell for it to remain lit. So, 600 times a second a pulse is sent. The image it's self is still refreshed 60 times a second.
Quote:
Originally Posted by losttsol View Post

Panasonic Plasma, /thread.
Cost for cost, you'll probably find the picture quality of a Panasonic Plasma better than a comparable LED LCD.
Edited by Cheezman - 2/18/13 at 12:44pm
 
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post #15 of 23
Thread Starter 
Quote:
Originally Posted by Cheezman View Post

Your information is kind of wrong.

All HDTVs are 60hz. They use FRAME INTERPOLATION to achieve the effect as if they had higher refresh rates. The panel it's self still runs at 60hz.

Also, Plasma screens are still 60hz. The 600hz of a Plasma is how many times an electric pulse is sent to each cell for it to remain lit. So, 600 times a second a pulse is sent. The image it's self is still refreshed 60 times a second.
Quote:
Originally Posted by losttsol View Post

Panasonic Plasma, /thread.
Cost for cost, you'll probably find the picture quality of a Panasonic Plasma better than a comparable LED LCD.
Isn't frame interpolation bad?

Mmm, I see. Thanks.
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post #16 of 23
Quote:
Originally Posted by steelbom View Post

Isn't frame interpolation bad?

Mmm, I see. Thanks.

For accurate gaming, it's not very good. But for just about everything else, you'll be fine.

"Game modes" usually turn the interpolation off, along with any other post processing.
 
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post #17 of 23
Quote:
Originally Posted by Cheezman View Post

Your information is kind of wrong.

All HDTVs are 60hz. They use FRAME INTERPOLATION to achieve the effect as if they had higher refresh rates. The panel it's self still runs at 60hz.

Also, Plasma screens are still 60hz. The 600hz of a Plasma is how many times an electric pulse is sent to each cell for it to remain lit. So, 600 times a second a pulse is sent. The image it's self is still refreshed 60 times a second.
Cost for cost, you'll probably find the picture quality of a Panasonic Plasma better than a comparable LED LCD.

Good to know!

Thanks for that thumb.gif
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post #18 of 23
With TVs, a big one that no one mentions are viewing angles. Depending on how your room is going to be set up, it can really be a bothersome issue. I would actually go into a Best Buy or similar and spend a good amount of time there viewing the HDTVs, even going as far as changing settings if you think one is too vibrant or bright, or whatever. Write the model number down if you don't want to purchase there, and order online or whatever. I would never buy any TV based on reviews/opinions or anything, though they do help a ton still in deciding which direction to go. Forgot to mention this is only an issue with LCDs, and shouldn't be something you would experience with a plasma display.
     
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post #19 of 23
Thread Starter 
Thank you everyone for your replies! It's much appreciated thumb.gif

I feel a little more informed now; I definitely think I'll go with a Plasma.
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post #20 of 23
Plasma all the way unless
1. you spend more than 30% playing video games - otherwise be ready to run a lot of scrolling bars/noise esp in the first 400hrs of use
2. in a bright room where you cant control lighting & reflections
3. in a small unventilated/un-air conditioned room (plasmas can get kinda warm)
4. watch ALOT of shows with news tickers

600hz is more or less a gimmick, they can still only accept up to 60hz input - some output 96hz (Samsung E series, and Panasonic GT/VT series)

My recommendation is the Panasonic ST50, ive had both that and the Samsung E6500 (which uses the same panel as the higher end 7000/8000 models) and the ST50 crushes then in picture quality/black levels.

It is more IR prone tho which could be a problem if you game a lot, but it was worth it since samsungs (including mine) buzzed a lot.
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