Peter,
Yes, that is correct. Each field is a complete color, changing on the next field. Since there are an odd number of color segments (three) each color in the RBGRBG sequence exposes alternating fields to make a complete frame, but at a displaced time. (more on this below)
Jac,
The phosphor persistence is of concern as any lag from one field to the next pollutes the color. In operation with standard P4 phosphor this doesn't seem to be much of an issue to normal viewing. I don't believe anyone has done actual tests on one of the operational sets, but I'm sure there is some amount of measurable effect.
What is of concern and much more easily visible is color fringing on movement. While registration is inherently perfect with sequential color, since two fields of the same color are seperated by three fields in time, the image could have moved a considerable amount causing color fringing. This is noticeable on fast motion, but I would say not necessarily objectionable. Compare this to poor color registration on a standard tri-gun crt and you could argue about which one is really worse?
Darryl
Yes, that is correct. Each field is a complete color, changing on the next field. Since there are an odd number of color segments (three) each color in the RBGRBG sequence exposes alternating fields to make a complete frame, but at a displaced time. (more on this below)
Jac,
The phosphor persistence is of concern as any lag from one field to the next pollutes the color. In operation with standard P4 phosphor this doesn't seem to be much of an issue to normal viewing. I don't believe anyone has done actual tests on one of the operational sets, but I'm sure there is some amount of measurable effect.
What is of concern and much more easily visible is color fringing on movement. While registration is inherently perfect with sequential color, since two fields of the same color are seperated by three fields in time, the image could have moved a considerable amount causing color fringing. This is noticeable on fast motion, but I would say not necessarily objectionable. Compare this to poor color registration on a standard tri-gun crt and you could argue about which one is really worse?
Darryl







