Will LCDs get to 480hz like plasma?

[bone crusher]

SOny will be launhing their first wave of 240hz LCDs this year and it made me wonder if the LCDs will get to 480hz like plasmas have. Discuss.

[cembros]

those are 2 differnt concepts, 240hz is the refresh rate on an lcd, and the 480hz is the sub feild drive of a plasma. One has nothing to do with the other.

[Trix]

Originally Posted by bone crusher

SOny will be launhing their first wave of 240hz LCDs this year and it made me wonder if the LCDs will get to 480hz like plasmas have. Discuss.

Two things:

First, plasma TV's do not have 480hz refresh rates: they have 48hz, 60hz, 72hz, and upcoming 96hz. The majority of displays have a fixed refresh rate of 60hz, but some of them will display at the other display rates when fed a 24 frames per second source. However, the 480hz you refer to, or even the 600hz claimed by Panasonic, are subfield drives. Basically, 480hz is ten 48hz fields, 600hz is ten 60 hz fields. So, the tv is still refreshing at the same refresh rate, the different fields simply do it individually, and the claim is that this helps alleviate loss of pixelation in areas where there is no movement (since movement inevitably leads to pixel loss, yadi yadi yada.) So, that's that.

Second, it's important to remember that LCD TV's upgraded their technology to 120hz, and now to 240hz, to try to keep up to the fluidity of plasma displays. The argument was that since movement resulted in much higher pixelation loss on LCD's (I remember reading results from a test where a moving HD scene on an LCD had a resolution lower than standard definition....yikes!), adding more frames to refresh in between, through motion interpolation, would "smooth" this. This also allowed LCD TV's to properly display 24 frames per second sources without resorting to 3:2 pulldown, however I believe the original intent was simply to smooth out motion scenes.

So, back to the question, which I will modify to "Will LCD TV's ever handle motion as well as plasma TV's." And, I will answer, possibly. LCD TV's have made huge leaps in black levels as of late, and now the emphasis can continue on improving motion. Fundamentally, I don't think it is possible; mind you, 3 years ago, someone would have chimed in to say that LCD's will never have a deep of a black as plasma's because they need a backlight. Three years of LED-backlit televisions later, this has been achieved. So, anything is possible. But, I think that based on the fact that LCD response times are much, much higher than plasma sets, I still think it is rather unlikely. But, I like nothing better than being proven wrong by the test of time.

[Sonny]

The 480Hz on plasmas is the "Sub field drive". The new Panasonics have a 600Hz "SFD" which helps it acheive a full 1080 lines of motion resolution. The LCD's 120/240Hz is a hole nether matter. I hope this helps some.

[turboLAZER]

Originally Posted by bone crusher

SOny will be launhing their first wave of 240hz LCDs this year and it made me wonder if the LCDs will get to 480hz like plasmas have. Discuss.

The 480hz that plasma manufacturers refer to is not the actual refresh rate of the tv, it refers to the sub-field drive, it's like comparing apples to oranges. It's not comparing the same feature at all. it's just marketing jargon.

pixel response time is much more important spec to consider:

plasma - less than 1 millisecond
LCD - usually 4 milliseconds and higher on a 40"+ LCD

[turboLAZER]

you guys type too fast, you all beat me

[cembros]

and i was first, you all suck

[Trix]

Originally Posted by cembros

and i was first, you all suck

Thank you! I have to accept sucking, however, because I always fail at providing simple, short answers...

[cembros]

Originally Posted by Trix

Thank you! I have to accept sucking, however, because I always fail at providing simple, short answers...

lol no your response was much better than mine, but way to slow man