Million tiny mirrors

DLP There are a few more options in large screen televisions than there used to be.  In addition to CRTs and projection TVs, LCDs and plasma have come into their own.  There are also several new options like DLP, which this thinly disguised advertisement for Samsung explores.  It turns out that Gateway also has an offering in this area, as does RCA.

I found the techology behind this fascinating.  A color wheel, a light bulb, and a million tiny mirrors.

projectors

Sam ruby discovers how DLP projectors works, and is impressed. One thing that is interesting is that colour is done with a rotating mirror giving out R-G-B and White slices; overall you end up with an efficiency of under 25%....... [more]

Trackback from Steve: developing on the edge at
I find the DLP technology impressive, too.  Now if only I could afford a TV that uses it...

Posted by Scott Johnson at
I wrote the page on DLP referred to as the "thinly disguised ....".  The comment about this being an ad is mistaken.  We have NO relationship with any vendors.  The page equally covers all of the vendors in the DLP RPTV market.  Samsung just happens to be far ahead of others at this point.

Posted by Arun Gupta at

The page equally covers all of the vendors in the DLP RPTV market.

Are we talking about the same page?  I see no mention of any other vendors in the DLP RPTV market on that page.

C:\>curl --silent http //www.digiupdate.com/P001_Samsung_HLN_DLP_2003.html | grep -i Gateway | wc
  0  0  0

C:\>curl --silent http //www.digiupdate.com/P001_Samsung_HLN_DLP_2003.html | grep -i RCA | wc
  0  0  0
Posted by Sam Ruby at

There are two related DLP pages on this site.  This one equally covers all the vendors, including the ones announced this year:

www.digiupdate. com/105_DLP_RPTV.html

This one provides detail on Samsung 2003 sets:

www.digiupdate. com/P001_Samsung_HLN_DLP_2003.html

Posted by Arun Gupta at

Arun, I'm flattered that you seem to care about my opinion.

Remember that this was the first page that I ever saw on your site.  It covers everything from CRT to Plasma to LCoS except for any mention that there are any other vendors of DLP.

This left me with a distinct impression.  I'm not certain why you care about my impression, but things that would correct that impression:

Perhaps making one of these changes would prevent others from forming the same initial impression that I did.

Posted by Sam Ruby at

I find DLP projectors extremely irritating. Just when your eyes are a tiiiny bit out-of-focus or you are looking on the presenter you get these blobs of colour very quickly blinking by. I'm sorry but I can't explain it any better. I started seeing it when a friend said he got a headache for watching DLPs. Now I see them all the time! Very irritating!

Posted by Jonas at

Jonas, that's called the "rainbow effect" and it's a well-known problem with color-wheel/single-panel DLP displays.

Fortunately for most, though, is that it's a threshold problem: as long as you never begin to see it, it's not a problem for you.  Once you begin to notice it however, you can't ever not notice it.  Apparently most people don't see it (yet).

Prism based, multiple-panel DLP displays don't have the problem, but those designs are currently being reserved only for theaters and professional projectors, go figure.

Posted by Ken MacLeod at

DLP TV's are nice

My friend Steve has one of the new DLP TV's made by Samsung. Here is an informative article about these TV's. Sam Ruby was impressed, and Steve Loughran thought it was interesting too. Having watched many things, including New England Patriots...

Excerpt from Tom Jordahl's musings at

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Trackback from Sam Ruby at

Hello
I just purchased the Samsung 27" CRT HDTV and subscribe to Comcast (Digital Box). I am told by the Technical Support people that I need to purchase DVI, HDMI and video cables in order to receive the best quality picture. 

To be perfectly honest, I was told by the installer I would need nothing more. In fact, he displayed the non-HDTV channels and switched to the HD channels and I could not tell the difference. He swore that there was.

So, I’m very confused as to what I really need to see these highly acclaimed HD broadcasts.  I do have a digital DVD, and analog VCR that I would like to hook up too. 

The back of my new set has HDMI(in)jack, video & audio jacks. My cable box has DVI, HDMI(out), multiple video/audio jacks, etc..

Thank you.

Sincerely confused,
Wynn

Posted by Wynn McDonald at

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Trackback from Sam Ruby at

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