DLP Question

Archived from groups: alt.tv.tech.hdtv (More info?)

Something I've always wondered about DLP. I understand the chip has little
mirrors that move. Wouldn't that make it more likely to break? I admit I'm
no electronic wiz, but one thing i do know is moveable parts isn't good as a
rule. Am I wrong about this? I wonder what exactly is the estimated life of
a DLP TV?

Archived from groups: alt.tv.tech.hdtv (More info?)

Thanks for the info Randy.


"Randy Sweeney" <rsweeney1@comcast.net> wrote in message
news:taudnWtS7qdFC0DdRVn-vg@comcast.com...
>
> "Albert Alverez" <noneofyourbusiness@noway.org> wrote in message
> news:qNaDc.27645$Y3.27149@newsread2.news.atl.earthlink.net...
> > Something I've always wondered about DLP. I understand the chip has
little
> > mirrors that move. Wouldn't that make it more likely to break? I admit
I'm
> > no electronic wiz, but one thing i do know is moveable parts isn't good
as
> a
> > rule. Am I wrong about this? I wonder what exactly is the estimated life
> of
> > a DLP TV?
>
> TI has info on this at
>
http://www.dlp.com/dlp_technology/ [...] _Myth.pdf.
>
http://www.dlp.com/dlp_technology/ [...] Reliabilit
y_paper.pdf.
>
> It is widely accepted that DLP's have the longest life of any display
> technology
>
> the parts don't move much and the strength and flexibility of silicon at
the
> tiny scales involved is incredibly high
>
> as things get small, the effects we see at large scale change dramatically
> and physical effects that have little play at
> large sizes come to predominate.
>
> it's the bulbs that die too young - but then they can be replaced
>
>
>

Archived from groups: alt.tv.tech.hdtv (More info?)

I've never noticed "smudges" on my Samsung HLN507W.

"Alan Figgatt" <afiggatt@comcast.net> wrote in message
news:49idnT8f969HukLd4p2dnA@comcast.com...
> Albert Alverez wrote:
>
> > Something I've always wondered about DLP. I understand the chip has little
> > mirrors that move. Wouldn't that make it more likely to break? I admit I'm
> > no electronic wiz, but one thing i do know is moveable parts isn't good as a
> > rule. Am I wrong about this? I wonder what exactly is the estimated life of
> > a DLP TV?
>
> I don't think the concern with the lifespan of the DLP RPTVs is with
> the DLP chip itself. I have not read any postings about issues in that
> area. The lifespan issues are more for the cost of replacing the high
> intensity light bulb, the color wheel and the lens set that project the
> image. The color wheel, from what I have read, is easily swapped out by
> a repair technician, but I don't know if it is a do it yourself job. The
> lens won't wear out, butunless the complete optical train is sealed,
> will get dirty over time and require cleaning. If they are sealed, then
> you might to only worry about cleaning the outer lens which I would hope
> is easy to get at. If not, then unless you have a maintenance contract,
> may have to pay for a service call every X years.
>
> I'm planning to get a HDTV sometime later this year but have not
> decided on the technology (plasma, LCD, DLP RPTV, LCD RPTV, etc). There
> are enough problems with the new Samsung HLP sets - smudgy screens -
> along with the known drawbacks for the DLP TVs discussed on
> www.avsforums.com that I have leaned away from the DLP sets. But the
> smudges may be some simple teething issues for the new Samsung DLP sets
> coming out that may be fixed soon.
>
> Alan Figgatt
>
>
>
>
>
>
>
>

Archived from groups: alt.tv.tech.hdtv (More info?)

A concern.

I was planning on purchasing the new 61" HLP shortly but recently
someone told me that all Samsung DLP's show a maximum of 720p. That
would mean a satellite receiver that outputs 1080 would be useless.

Is this true? Isnt this a major drawback? I was told that the Sony
LCD's can display 1080.

Thanks for your advice.


--
zubinh

Archived from groups: alt.tv.tech.hdtv (More info?)

I have the RCA 61" DLP with 720p as its native format. It converts all
1080i signals to 720p before display. The local FOX channel comes in at
720p OTA, while NBC and CBS come in at 1020i and are converted. I myself
can't tell the difference between either of these feeds. I say don't sweat
it. The ideal HDTV would do 1020p, but AFAIK, such a beast is not
commercially available at this time.

"Dennis Mayer" <Polaris1@execpc.com> wrote in message
news:40F0BF70.BB87C891@execpc.com...
>
>
> zubinh wrote:
> >
> > A concern.
> >
> > I was planning on purchasing the new 61" HLP shortly but recently
> > someone told me that all Samsung DLP's show a maximum of 720p. That
> > would mean a satellite receiver that outputs 1080 would be useless.
>
> I believe 1080 should read 1080i (interlaced)....
>
> HDTVs and set top boxes do make the HD conversion from 1080i to
> 720p routinely.... Both HD formats contain nearly the same
> amount of 'timed' pixel data....
>
> 1080i has more lines by is updated less frequently..
> 720p has less lines but is updated more frequently...
>
>
> >
> > Is this true? Isnt this a major drawback? I was told that the Sony
> > LCD's can display 1080.
>
> No, it is not a major drawback for certain flat screen
> technologies.
> 720p may be the native 'fixed' format for DLPs....
> >
> > Thanks for your advice.
> >
> > --
> > zubinh

Archived from groups: alt.tv.tech.hdtv (More info?)

zubinh <zubinh.197nxm@nobody.satelliteguys.us> wrote in
news:zubinh.197nxm@nobody.satelliteguys.us:

>
> A concern.
>
> I was planning on purchasing the new 61" HLP shortly but recently
> someone told me that all Samsung DLP's show a maximum of 720p. That
> would mean a satellite receiver that outputs 1080 would be useless.
>
> Is this true? Isnt this a major drawback? I was told that the Sony
> LCD's can display 1080.
>
> Thanks for your advice.
>
>

All LCD, DLP, Plasma have a native res. of 720p. Only the CRT rear
projection systems can display 1080i natively. All DirectV boxes I've
seen have a switch to output either 720p or 1080i. You set this switch to
your display's native res. Everything will be fine. Don't worry about
what the OTA stations send out, the box will convert it to the setting of
the boxes output res.

Don't worry, be happy. BTW, I'd love to have that DLP.

Dave