[fzx12345]

Avoid DLP if you’re concerned about reliability. As you know, DLP uses a million tiny mirrors to generate the picture. These are all MECHANICAL parts that can, and will break. Stick with LCD.

And yes, I am a video engineer.

[mylife]

I was always concerned about that but I have never seen a failure of the chip.

Ahh well, it seems Im behind the times.
Im still running a 27 in crt from 86.
I rarely watch TV, or films for that matter

[Yossarian]

Avoid DLP if you’re concerned about reliability. As you know, DLP uses a million tiny mirrors to generate the picture. These are all MECHANICAL parts that can, and will break. Stick with LCD. And yes, I am a video engineer.

Care to back up your declaration that DLP micromachined structures are unreliable with facts?

Yes, DLPs uses many tiny mirrors - but they are all attatched quite solidly to the rest of the DLP by the very nature of how they're made.

I'm a chip physical design engineer. I have yet to hear of DLP failures. Silicon is strong but flexible stuff.

[CMAC51]

Avoid DLP if you’re concerned about reliability. As you know, DLP uses a million tiny mirrors to generate the picture. These are all MECHANICAL parts that can, and will break. Stick with LCD. And yes, I am a video engineer.

Then you should know enough to check the reliability specs. The DLP chip (with the mirrors) has a non-existent failure rate. Their pixel reliability is higher than LCD.

[CarrotAndStick]

The mirrors themselves are made out of aluminium and are around 16 micrometres across. Each one is mounted on a yoke which in turn is connected to two support posts by compliant torsion hinges. In this type of hinge, the axle is fixed at both ends and literally twists in the middle. Because of the small scale, hinge fatigue is not a problem and tests have shown that even 1 trillion (1012) operations do not cause noticeable damage. Tests have also shown that the hinges cannot be damaged by normal shock and vibration, since it is absorbed by the DMD superstructure.

From Wiki...

[-YYZ-]

And don’t forget the spinning color wheel and bulbs in DLP projectors - more things to go wrong and, in the case of the wheel and cooling fan, make noise. Then there’s the “rainbow effect”. There are DLPs on the market now (Samsung, I think, probably others) that use LEDs for their light source.

Personally, I just don’t much care for the way rear projection looks. Give me direct-view every time.