DLP or LCD Projector for Presentations?

[melickas]

Not sure if this is the best newsgroup for this question but have seen
some postings regarding this. We have a budget to purchase a projecctor
for up to $4,000.00 We are mainly going to use it for Powerpoint
presentations in a small meeting/conference room usually seating less
than 40 people. The projector will be in a room with some ambient
lighting and will be approximatley 25-40 feet from the screen.

We have concern on the LCDs for the screen-door effect -- but maybe
this is only under certain conditons or when viewing movies and not
presentations - we are not sure???

We are mainly looking at Infocus models but are open to any brand. The
projector will connect to a laptop computer.

So, is there a big difference in DLP vs. LCD for Powerpoint
presentations?

Thanks!

 

[Echo S]

What is the "screen-door effect"?

 

[Bill Dilworth]

When an LCD is sharply focused there is a slight grid line visible between
the pixels. This is not as evident in the DLP projects.

If the audience is sitting close, this is a minor issue.

I suspect Troy has the best answer on this one, but that's just my opinion.

Bill D.

What is the "screen-door effect"?

--
Echo [MS PPT MVP] http://www.echosvoice.com
Fixing PowerPoint Annoyances
http://www.oreilly.com/catalog/powerpointannoy/
How to Prevent PowerPoint Overload (March 23 webcast)
http://tinyurl.com/bp2h8

Not sure if this is the best newsgroup for this question but have seen
some postings regarding this. We have a budget to purchase a projecctor
for up to $4,000.00 We are mainly going to use it for Powerpoint
presentations in a small meeting/conference room usually seating less
than 40 people. The projector will be in a room with some ambient
lighting and will be approximatley 25-40 feet from the screen.

We have concern on the LCDs for the screen-door effect -- but maybe
this is only under certain conditons or when viewing movies and not
presentations - we are not sure???

We are mainly looking at Infocus models but are open to any brand. The
projector will connect to a laptop computer.

So, is there a big difference in DLP vs. LCD for Powerpoint
presentations?

Thanks!

 

[Troy @ TLC Creative]

With your budget and general description I am going to make a few guesses:
- Small audience viewing (25-100 people)
- Front projection (projector in front of screen, out by audience)
- Connecting computer direct to projector (ie. no switcher, scaler, etc.)

With those assumptions, at your budget there are not many systems that
outshine the other. In other words, you will do good with just about any
reputable companies projector. But here are a few key items to make sure are
on the projector and to consider:
1. Bulb life (what is the life of the bulb - in hours)
2. Bulb replacement cost (this can be $75 to $700 - check before purchasing
so you know what to expect)
3. It should be at least 1024x768, but better would be 1280x1024
4. Size; consider your travel and placement needs (things do not have to be
large any more)
5. Noise; listen to the units operating noise level (because it will be out
by the audience, check if the fans are to loud)
6. Quiet Mode; this is good if projector is used in a small setting, as it
limits the output power, but also runs near silent.
7. Contrast; this is a tricky number and hard to use in side-by-side
comparisons (different companies measure differently), but in general more
is better
8. Lumens; at your budget go for 2,000+, the closer to 5k the better
9. Lens Shift is better than keystoning (this is the ability for the
projector to move the image up or down without needing to adjust the front
legs, which creates a distorted projection)
10. Warranty, carrying case, etc.

Those are the things I can think of off the top. Do a google search for the
unit(s) you are considering and read some reviews, as well as look for
anything in 'groups.'