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Re: A couple of front projection questions....
Ken.C #276100 10/24/09 08:29 PM
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 Originally Posted By: kcarlile
Hunh, I thought LCoS was dead, but it's taken over LCD?

I had to look into this. It does appear there are still quite a few non-LCoS, LCD projectors out there, including those made by Panasonic. Apparently there was an advancement I wasn't aware of in LCD panels which eliminated the appearance of the wires. The wires are still there, but optics are used to magnify the pixel area more than the wires between them. Sort of the opposite of what is done in a digital camera to capture light from a larger area than the small photo-receptors.

So LCD isn't dead, but nor is LCoS.


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Re: A couple of front projection questions....
Micah #276101 10/24/09 08:31 PM
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 Originally Posted By: Micah
Uuuhhhh.... Ok can I just say that your knowledge base in all this stuff scares me! \:o

Thanks. \:D All that was from my head too, except the models of the 3-chip projectors and their prices. I knew they existed, just had to look them up.


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Re: A couple of front projection questions....
Micah #276103 10/24/09 08:39 PM
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 Originally Posted By: ClubNeon

The old visible pixels, or "screen door effect" was from LCD projectors which shined the light through a panel. What you were seeing were the wires running to each cell of the matrix. Newer projectors use LCoS (Liquid Crystal on Silicon), these are chips which have the cells touching each other being controlled directly by the chip surface below them, thus no wires.

AFAIK only Sony and JVC make LCoS projectors at least in the sub $10,000 range. Everything in the sub $2,000 range is LCD or DLP. The LCDs have just gotten better at hiding the wires and in Panasonic’s case they use digital processing to eliminate the pixilation.

In the past I agree with Alan that DLP had an overall better picture than LCD, however I now feel that LCD is on almost on par with DLP and LCDs usually have better placement flexibility.

Rick - What are your intended uses for the projector? In my case features supporting my intended uses helped make me make my projector choice rather than just what reviewers think had the “best” picture.

Oops, looks like you caught that before I hit send.

Last edited by grunt; 10/24/09 08:41 PM.

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Re: A couple of front projection questions....
grunt #276104 10/24/09 08:58 PM
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Dean we'll use it primarily for watching movies, the 73" Mitsubishi will stay in the room and the pull down screen will be mounted in front of the TV so that for day to day viewing the TV will be used but I want to be able to pull down the screen for viewing movies and some TV programs with the projector.


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Re: A couple of front projection questions....
grunt #276105 10/24/09 08:59 PM
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I agree, LCD's are pretty much on par in the contrast department these days, unlike the past where DLP's one no contest.. Also, many people still are affected by the "rainbow" affect in DLP's, even with the faster wheels.


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Re: A couple of front projection questions....
SirQuack #276106 10/24/09 09:06 PM
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 Originally Posted By: sirquack
Also, many people still are affected by the "rainbow" affect in DLP's, even with the faster wheels.

One advantage of being old ... I have yet to see the rainbow effect on our Mits RP DLP for over four years, even after looking for it.


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Re: A couple of front projection questions....
RickF #276107 10/24/09 09:12 PM
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You can see....like.... runways and stuff, though...right?


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Re: A couple of front projection questions....
RickF #276109 10/24/09 09:17 PM
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 Originally Posted By: RickF
One advantage of being old ... I have yet to see the rainbow effect on our Mits RP DLP for over four years, even after looking for it.

Some people just don't see it, regardless of age. I don't see it on smaller screens which don't fill my field of view unless I turn my head and catch them from the corner of my eye. Walking through an electronics store with RP DLPs on both sides of an isle is a bit of a trip though.


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Re: A couple of front projection questions....
MarkSJohnson #276110 10/24/09 09:19 PM
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Some may argue that Mark. \:D


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Re: A couple of front projection questions....
ClubNeon #276111 10/24/09 09:20 PM
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I want to see a direct-to-consumer projector maker that stays on the bleeding edge of technology and offers a trade-up program. Can one of you start that company?

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