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     CeBIT : Samsung LCD, MPA technology
      Posted on 09/03/2006 at 14:22 by Vincent
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    Samsung has oriented their research on the image rate. It is of 60 fps (60 Hz refreshing rate) for TFT as compared to 85 to 120 fps for CRT. The afterglow mainly comes, according to them, from this gap. The MPA technology introduced in future PVA monitors series (TN aren't concerned for now) consist in intercalating one image between two to artificially double the image rate and to reach 120 images per second. Each image added isn't the same as the previous one or the next one but an image calculated, interpolated, and intermediate.

    To demonstrate the efficiency of this system, Samsung opposes in their stand the current 24" S-PVA monitor to a 24" monitor based on the next generation. The two are in clone mode and display a video showing a motorcycle moving from the left of the monitor to the right. The result is amazing. One shows a very strong afterglow and the other one don't.

    If this demonstration is impressive, we have to put in into perspective. The reference monitor, the slow one, is already slow today compared to the fastest monitors. The current Samsung 24" monitors are 8 to 16 ms PVA and are much slower than the Acer which is also a PVA but 6ms. It includes a much more recent panel and electronic generation. In clone mode, the result of the Acer and the slow Samsung would already be impressive. We will have to test this technology to really appreciate its efficiency. It is best however not be in a rush: Samsung is at this date unable to tell us when it will be released. We don't even know if these monitors will be available in 2006…Samsung is persuaded of the efficiency of this process. It is true it is really promising. The only thing that bothers them is that no measure would reflect the actual reaction time of their monitor. Especially not the response time, because it would be much higher than TN despite the fact that the actual rendering would be faster for the new PVA. So this is the reason why they might not give this characteristic for the next monitors of this type. We aren't mad at them for that: it has already been a long time since we noticed its lack of representativeness.

    We however have to point out that we find the "MPA" name particularly unsuited. Unless if you keep a close look to LCD current events, you might get yourself lost between MVA panels that became P-MVA for AU Optronics, PVA that became S-PVA for Samsung. And now to complicate the situation, they add a MPA technology….

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