Here is the quote from the Samsung LCD engineer at CES
Total response time = Rise time + Fall time. Rise time sends the full electrical signal to the pixel and produces white. The electricity is stopped and then the pixel falls to black. The problem with the measurement is that pixels on TV's rarely move from full white to full black. There is another measurement though (I forgot what he called it) that is how long it takes a Pixel to shift from one color to another and that is almost always longer. It has to do with sending a non-full signal to the pixel and the fact that the "energizing" of the pixel at non-max can be significantly longer than when going to white/black. This is why posted response times on computer LCDs never seem to have bearing on gaming ghosting (except to be someone directional) and those with a higher response time can actually seem to have less ghosting.
Here is the link to the AVSforum original thread. They are discussing the new 54" LCD displayed at CES this year.
AVSForum original thread (page 2)
Companies have discovered ways of compensating for these color switched taking longer such as LG/Philips "overdrive" they currently use in their 52" LCD.
I only post this because so many people here just rattle off what they are told that response time is everything. It is an indicator, but a poor one at that. I was tired of people telling other "not" to buy the LCD at Walmart due to its higher response time (see Hot Deals). They never even had the gall to see the unit before condemning it (even though users reported NO ghosting to minimal).
Total response time = Rise time + Fall time. Rise time sends the full electrical signal to the pixel and produces white. The electricity is stopped and then the pixel falls to black. The problem with the measurement is that pixels on TV's rarely move from full white to full black. There is another measurement though (I forgot what he called it) that is how long it takes a Pixel to shift from one color to another and that is almost always longer. It has to do with sending a non-full signal to the pixel and the fact that the "energizing" of the pixel at non-max can be significantly longer than when going to white/black. This is why posted response times on computer LCDs never seem to have bearing on gaming ghosting (except to be someone directional) and those with a higher response time can actually seem to have less ghosting.
Here is the link to the AVSforum original thread. They are discussing the new 54" LCD displayed at CES this year.
AVSForum original thread (page 2)
Companies have discovered ways of compensating for these color switched taking longer such as LG/Philips "overdrive" they currently use in their 52" LCD.
I only post this because so many people here just rattle off what they are told that response time is everything. It is an indicator, but a poor one at that. I was tired of people telling other "not" to buy the LCD at Walmart due to its higher response time (see Hot Deals). They never even had the gall to see the unit before condemning it (even though users reported NO ghosting to minimal).