LCD vs DLP home theater projectors?

john smith

I am looking for a new projector for my home and I was wondering what the pros and cons of LCD and DLP projectors were. The projector would be in a room with windows so there would be ambient light conditions during the day in case this affects the decision on which type of projector to get.

Answer
Lance gave you info on HDTVs ... not projectors.

DLP and LCD projectors are two of three common technologies (The third is LCoS ... a variation on LCD). At one time DLP was considered to provide better contrast ratio than LCD, but to be more prone to causing visual field issues (so called "rainbow effect" .. caused by the relatively slowly spinning color wheel used in DLP projectors) in susceptible viewers. While LCD projectors were more prone to "screen door effect" ... visible lines between individual pixels (LCoS's big advantage was the absence of "screen door effect").

In modern projectors there is no longer an automatic superiority by DLP projectors re contrast, "rainbow effect" is no longer a concern (due to higher color wheel rate) and with 1080p projectors fairly common, screen door is no longer a significant issue.

While not universally true, LCD projectors tend to have greater mounting flexibility (due to lens offset and greater zoom lens capability) than most DLP projectors, but due to the three LCD panels required are more expensive and more prone to degradation of the LCD panels with time.

That all said, I'd suggest considering the specs and features on the models in your budget range as being more important than whether the projector is based on DLP or LCD (or LCoS) technology.

See the links for good sources of info, reviews and recommendations.

5800 Lumen DLP Projector vs 6500 LCD projector?

tim m

5800 ANSI Lumen DLP vs 6500 ANSI Lumen LCD large venue projector. Both are hd, both are 16x9, both are same make - different model. This is for purpose of screening independent films in a dark movie theatre. Best quality is what im going for my patrons.
40 foot throw on a 20x30 foot screen. http://www.projectorcentral.com/parts_compare.cfm?pid_1=5939&pid_2=4895&pid_3=5510&remove_compare_list=5764 is the site i was using for the comparison. I know i need something more powerful to be really effective but i've used 6000 lumen projectors in the past and they worked well for what i had in my budget.
These are the two projectors im looking at with a side by side comparison. They will be used to screen independent films off a blu ray player (with a sound system) in a dark movie theatre that seats 500.

http://www.projectorcentral.com/parts_compare.cfm?pid_1=5939&pid_2=4895&remove_compare_list=5510

Answer
Since lumen ratings are notoriously inaccurate the relatively small difference in brightness isn't very significant. While the rating may be comparable given they are from the same manufacturer brightness varies a lot with how the projector is calibrated, so frankly I'd consider brightness a wash and judge based on other criteria. For example, do you have a preference for one technology over the other, what type of LCD panels, lens zoom range, mechanical vs motorized, noise level, mounting flexibility, does one accept auxiliary lenses or not, warranty, lamp replacement cost, projector cost, etc.

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how to install home tv projector?

best projector dlp vs lcd image

nitisdad

Need instructions and tips on installing a home tv projector.

Answer
Yeah... we are going to need a bit more information for that. Say at least the brand and model; though it should have come with a book that tells you this.

Installing a home tv projector varies greatly between a portable LCD/DLP unit or a CRT unit. Cables and inputs also matter, as you may or may not be able to run your audio through the projector, or you may have to buy various adapters for video inputs.

The setup you want also makes a difference; did you want to hang it upside down or are you simply putting it on a shelf thats attached to the wall. I find LCD/DLP can go on a shelf, but you certainly wouldn't want a CRT unit on a shelf.


Darknight: Hate to break it to you, but you are the neophyte here. (It's not spelled neophite; you could at least get that correct). A CRT projector is one that uses CRT tubes rather than a bulb and LCD or DLP technology.
http://www.dvdfreax.com/theater/august20...
There is a picture of one for you and yes I know he was talking front projection. They are traditionally not used too much anymore as they are obviously very big and very heavy. They are also expensive, very expensive to buy but they do last quite long and you don't have a few hundred bucks on a bulb every time. They also don't have a native resolution as is with any CRT.

Brand and model are of course relevant; it's much easier to figure out where the mount holes are (and trust me, it's a big difference between those little things best buy sells vs a real professional unit)

Video projection up to 12 m, which projector to by?

vedtam

Hi,

I am really not an expert in video projectors, and I don't know where to start. I need a projector for a clothing store where still images and video clips would play on a wall. The problem is that we can't hang the device on the ceiling, so it has to be placed on the opposite wall, up heigh and the projection should be done from about 12m on a wall about 4x6m. Is it possible?

Or

If we install the projector on the ceiling, and we project the video clips from a 40-50 degree angle, is there a way to get a nice picture (maybe by fixing distortion in the settings) even if the projector is not set straight?


I would appreciate any suggestion. Thanks!
vedtam

Answer
Depending how big an image you want you might be better to use a flat screen TV. If you use a projector (unless the light level in the store low) you will need a special screen ($$) to reject ambient light or a very bright (high lumen rating) projector (or both). Furthermore, anyone between the projector and the screen will block the screen so the suggested setup is problematic on several counts.

As to mounting you don't specify a projector so I'll assume it has yet to be acquired. That's good.

It's possible to mount a projector high on a wall if the projector has a feature called "lens shift" ... in essence the ability to adjust where the image ends up (lens shift typically allows the image to moved up and down or left to right by at least half a screen width/height). Many DLP-based (vs LCD) projectors have very limited adjustment possibility and would be a poor choice for your needs.

The biggest issue will be brightness at the distance you are planning. Most home projectors can fill a 100" screen from between about 4 and 7m ... but at 12m the image is going to be quite large (and therefore dim) ... or you will need an optional lens that will probably cost extra..

I'm afraid you may be looking at a fairly expensive proposition for a projector that will be bright enough and has a lens that allows a reasonable size image at 12m. It's possible, but, as I said, likely expensive.

See the link for a list projectors that that meet your basic requirements (You can explore further).

On the other hand, if you ceiling mount most projectors are designed to project the image down at a steep angle ... and this would be the best approach for you since a) it (at least partially) solves the customers getting in the way of the image problem, and b) it gives you a much wider choice of projectors. Again use the search engine at the link and then read reviews, etc.

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