Seems to me that Sharp has 1,280x720 whereas the Hitachi has 1,365x1,024 resolution or almost 52% more pixel density. However, at 16:9 format, the Hitachi drops to 1,365x768 so still has almost 14% more pixels. But if you typically watch in 4:3 format, like use, the Sharp drops to 960x720, so in this case, the 5500 at 1,365x1,024 has over twice the pixel density.
That being said, when I view the DLPs I see a more a distinct separation between the pixels than I see on the LCOS. This may be due (in part) to the fact that DLPs have about 90% "window" and 10% "frame" whereas the LCOS has 92-93% "window." Typical LCDs have about 65% "window."
Ultimately, you need to decide what's right for you. I know it's tough when you can't see the unit in action. I bought my 5500 without ever seeing one in action, but have no regrets. If you are in the So. Cal. area, you may view my 5500 on a 78" Firehawk.
That being said, when I view the DLPs I see a more a distinct separation between the pixels than I see on the LCOS. This may be due (in part) to the fact that DLPs have about 90% "window" and 10% "frame" whereas the LCOS has 92-93% "window." Typical LCDs have about 65% "window."
Ultimately, you need to decide what's right for you. I know it's tough when you can't see the unit in action. I bought my 5500 without ever seeing one in action, but have no regrets. If you are in the So. Cal. area, you may view my 5500 on a 78" Firehawk.