Last night, Justine and I popped into Megamart for a look around. My main focus was for audio/visual equipment whereas Justine wanted to look at new couches.
We looked around for a while, and when we came to the TVs, I thought it might be a good idea to check out the DLP rear-projection units, since I haven’t really investigated them up close. There was a Samsung 61 inch unit which looked absolutely fantastic, however, as soon as Justine stood beside me she exclaimed there was “something funny” about the picture. I asked if she was seeing “rainbows”, and she emphatically told me that “yes”, that’s what she saw. On this particular unit I couldn’t spot it myself, but there was definitely something a bit funny about the unit to me as well — didn’t really seem like the “rainbow effect“. May have been environmental (i.e. ambient light, etc) playing tricks though.
I proceeded to explain the rainbow effect to Justine while she did her usual “pretend to listen about technical stuff” routine.
Next, we checked out the home theatre areas, and sat in the cheap home theatre seating which wasn’t really that comfortable. The DLP projectors looked quite good too, though I didn’t see anything “funny” this time around. Wondering if Justine had seen something because I’d asked her too, I got her to check out the “amazing” picture. Two seconds later she was asking me if it was another of “those screens”. Why yes it was.
As it turns out, I was able to replicate the “rainbow effect” myself by looking at the projector itself; the light was slightly hitting a black bar designed to hold the unit in place. Where it hit the bar, there was a white patch of light. I found that if I stared at the light, it looked fine. As soon as I moved my eyes quickly either way, I could see the effect.
Unfortunately, this means that the best large screen displays available at the moment — DLP — are not available to us (I could probably live with it, depending on the unit; some are more obvious than others. Justine though, would probably not like watching a DLP at this point). We’ll have to wait until the units are much faster and are “3-chip” models as opposed to the “1-chip” ones out now. Apparently these two things in conjunction with one another will all but eliminate the effect. Might be a few years yet though.
Still stuck with the 68cm for a while, then.
No comments, make a comment »


Saturday February 26, 2005 - 10:17 am (3 years, 10 months ago)