I just want to brag about my "new" TV

[dljones8053]

They only better deal than you're deal that is my son gave me one just like this one few months ago (he did not want it anymore or get it fixed) so after putting a new lamp it it "got it for around 30 bucks" works like a new one. It has great color and use it in my man cave.

Wife says it's too big for the den, fine by me I like having my own room anyway to watch non drama TV and turn it up.

Enjoy it as I have really enjoyed the one I have, new LED are close to the picture quality as a DLP has but that is my MHO.

dj

[stustunz]

Rainbows is what kills it for me. Only 20% of people see them and I'm in that 20%

[johnsonx42]

this TV uses a 5-color wheel spinning at 14400rpm, which is 4x the frame rate. Supposedly that eliminates the rainbows some could see on older dlp sets that used a 3-color wheel spinning at 1x frame rate.

[stustunz]

Oh ok It was few years ago when I looked at a projector that did it. Good score then as the picture DLP produces is nice.

[dljones8053]

What is nice if the color starts to fade you replace the color wheel it is easy as replacing the lamp 5 minutes tops, I've always like the DLP concept to bad it faded out like it did. For those that's looking you will fond them on craigslist for around 150 bucks which is not a bad deal for any 1080P 50" plus TV.

dj

[johnsonx42]

interesting, here's a picture of the color wheel: http://www.ebay.com/itm/Samsung-Color-Wh...19e3063434
strikes me as odd that the segments aren't the same size, and further that the two larger segments are the red and the blue, while the third primary color (green) is smaller like the two secondary colors. Magenta is missing from the secondary colors, which of course can be made from red and blue, so I suppose that's why those two are bigger? Green is the dominant color of human vision, so you'd think that segment might be bigger, but then again the Cyan and Yellow secondary colors are also related to Green... perhaps all three are needed to produce a fuller gamut of green and green-related hues. Red and blue are on the ends of the spectrum, while green/yellow/cyan make up the meaty middle, so I guess it all makes sense in a rambling sort of way...

[johnsonx42]

I'm often fascinated by how things work, so I've read some about DLP technology, and it's yet another technology which I'm amazed 'they' were actually able to make it all work together...

"Really?!?! Let me get this straight... you're going to shine a really bright light through a color wheel spinning at 14,400rpm, and then synchronized to the colors shining on a chip, you're going to have 1.036 MILLION microscopic mirrors accurately move to reflect the desired light into a projector lens, then have all the mirrors move again for each color all in less than 1/120th of a second, then to top it off you're going to shift the mirror or lens assembly a tiny bit and do it all again to double the horizontal resolution, and this is all going to be done perfectly 60 times every second to produce a stable and color-accurate video picture? And this will all be mass produced at reasonable consumer electronics prices? Right..... and I'll be able to have my flying pig change channels for me?"

(edit: I mentioned in a post above that the color wheel spins at 4x the frame rate; I realize due to the use of wobulation that from the point of view of the color engine and projection system the frame rate is actually 120fps, so 14400rpm is 2x the frame rate; what I don't know is if the TV uses the "extra spin" of the color wheel to re-paint the same picture twice per frame, or if it wastes part of a spin as it sets up for each frame.)

[stustunz]

Yeah just seems like so much could go wrong.
Also Weird how see through the colour wheel is.

[drlava]

Your post made me look into these on craigslist. Some decent prices. You might want to get in there and take the thermal tape off your DLP heatsink interface and put real thermal compound there to postpone the 'white dots' problem where the dlp chip gos bad from heat..