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Refresh rates on Plasmas?

DGP123
11-07-2006, 07:20 PM
I don't recall seeing any Plasma HD Tv specs listing a refresh rate. Is the refresh rate only measured on LCDs? If it is, is there a similar measurement for the Plasma technology or is it just "better" (faster)?

BobY
11-07-2006, 09:47 PM
A lot of times when people talk about refresh rate, they really mean response time.

Refresh rate is how fast an image is sent to the screen. With most displays, the refresh rate is 60Hz (which is 16mS). This is a carryover from SD/NTSC video. There are a few displays now with 72Hz refresh capability in order to allow movies, which are filmed at 24 Frames-per-second, to actually display at 24 Frames-per-second rather than be converted to 30 or 60 Frames-per-second.

Response time is how long it takes for the picture to stabilize once the image is sent to the screen. The longer it takes for the picture to stabilize, the blurrier objects in motion will look. Two displays may both have the same 16mS refresh rate, but if one of the displays has an 8mS response time and the other has a 16mS response time, the first display will look much sharper on moving images.

Big improvements have been made in LCD response time, but they are still very slow compared to Plasma or CRT, which have nearly instantaneous response time.

DGP123
11-07-2006, 10:47 PM
Thanks for that great information. You really helped me make up my mind;)