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SED : Much Better Than Plasma

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Old 03-20-2006, 12:54 PM   #31  
What's all this, then?...
 
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Sure--a good display is a good display, although some types of displays are a better choice than others for certain program content.

The issue of CRT burn is so out of proportion to reality, it isn't worth considering. Unless you play video games that keep a constant background on all of the time, you're not going to burn a CRT with normal TV/DVD program content over the life of the set.

The reason they "grey band" SD material on CRT's (instead of black) is to age the CRT uniformly. If they used black, after some number of years, you would notice a difference in brightness between the unused area of the tube and the used area.
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Old 03-20-2006, 02:35 PM   #32  
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Hate to disagree,
but I got 4.3 burn on t crt widescreen last year.
We really can't say how bad the burn risk will be wil SED, but it doesn't look good. Each pixel will have it own emitter, unlike a single gun. If those emitters display a fixed image like a heavy logo or 4.3 bars, it sounds like more of a burn risk. Chek around the net with this issue, SED stands risk at burn in as of right now.
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Old 03-20-2006, 02:43 PM   #33  
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I wasn't commenting on SED. I have know idea what problems it may have, they're just prototypes at this point. If they have a serious burn problem, they won't introduce them until they deal with it.

What exactly did you burn onto your CRT? My family and I have had 7 different CRT's over a span of 40 years, with the average life of 7-10 years per set. Not one of them ever got burned and we watched them collectively for several hours every day. I've never known anyone who burned images onto their CRT's, although I can see how it's possible with gaming...
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Old 03-20-2006, 03:10 PM   #34  
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It was crt RP..it was the bars from 4.3 progamming on the 16.9 screen, my friend also got the same with a 2005 plasma.
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Old 03-20-2006, 03:52 PM   #35  
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I don't have experience with Plasma, though I have heard it can be a problem.

What color were the 4:3 bars? How long was the set on per day? Most important, what brand set was it?

We always watch 4:3 in progressive stretch mode, as we find that less distracting than the bars.
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Old 03-20-2006, 04:43 PM   #36  
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That was the Sony 51 inch, forgot the model #

The problem was I figured the set was configured to handle 4.3 images, the manual warned of external images like video games or heavy logos, but it said nothing about 4.3 burn.
So I was watching all standard programming without the stretch, after only 3 months, I noticed a light brown tint film on the set in light scenes.

A good LCD, I mean a good one, will always be in a league if it's own in flat panel technology with it's non reflective look, extended longevity by having an option to replace the backlight, and most of all no burn in worries that concern CRT, SED and Plasma.
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Old 03-20-2006, 09:30 PM   #37  
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To me, the price of what I considered a "good" LCD was way out of line, but I think it has a lot to do with what you watch.

My one and only goal was to recreate a "film" look on DVD's, with a fluid, smooth, high color saturation, high contrast image that pops off the screen in the dark. I've been blown away by some of the plasmas I've seen (I'm not spending that kind of money on a TV, though), but I have yet to see an LCD that works for me (maybe there's something out there that's way beyond my price range?).

I just realized you were talking about a CRT-based RP. I've seen comments that indicate a greater concern with burn-in on projection TV's. The usual response is it won't happen if the set is properly calibrated. I was speaking strictly of direct view CRT's (which is what an SED would most closely approximate).

I would also be inclined to think you had a defective TV if the phosphor burned in only 3 months. I've seen CRT monitors with the same start-up page displayed on them 24/7 for over a year without perceptible burn. Perhaps it was something other than phosphor burn (maybe the RP screen changed color in the areas that were exposed to light)?

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Old 03-21-2006, 06:13 AM   #38  
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Have you seen the Sony XBR LCD series with a hd feed? WOW!

As far as the burn,.. watching the 4.3 everyday like that would have burned into any CRT RP. If I had it zoomed... well, hind sight is 20/20

OK, just my opinion, but I believe the SED will be more prone to burn in than CRT direct view. With direct view CRT it has a single gun shooting the beam, but with SED, it will be a fixed pixel display, with each pixel have it own emitter (gun). This will be more stationary. Like plasma, each pixel is phosper based, unlike CRT direct view.
So if each phosper is staying stationary for a long period of time, or the same thing every day like MSNBC logo, it could become a problem.
The worse thing for burn in is 4.3 bars.

Like I said it will have it's good and bad, I remember all the hype about DLP, but what is it now? Yea it's good and in the game, but it's not the bomb as it was hyped up to be.
Anything new gets hyped up or exaggerated. You will ear the same hype with OLED, from what I hear that is a disposable TV.

Here are a couple good articles about SED.

http://www.hdtvsolutions.com/sed_tvs.htm

http://www.hdblog.net/2006/01/24/all-about-sed/

People seem to forget the basis of HDTV, it's was for picture detail. If your set can see hair on the top of one ears, you're not going to see anymore detail on another technology. The resolution you are seeing is in the number, 1080i is 1080i and 720 is 720 is the same detail on any monitor.

What I cant can't find out anywhere is if SED will have an anti reflectice screen like LCD.
If not that will rule out SED for sure in my book.
If anyone can shed light on that issue it would help.

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Old 03-21-2006, 08:07 AM   #39  
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For me, the Sony XBR LCD prices fall into the category of insane for the size, so no, I haven't looked at them. For those prices I would definitely get a larger plasma display.

For fixed-pixel displays, you're right, the resolution is the resolution.

Direct view CRT's have a lot of smoke and mirrors associated with them when it comes to HD. While the tube has no "native" resolution, the HD front end usually only supports a fixed number of input resolutions/scan rates and usually converts all of them to one scan rate to drive the tube (typically 1080i). But the dirty little secret is if the dot pitch of the tube's shadow mask isn't fine enough it will prevent you from seeing the resolution that is being scanned onto the tube.

I can see any phosphor-based display (or any light-emitting technology, for that matter) having potential for burn-in. Remember, though, because each SED pixel has it's own driver and a higher duty cycle (presumably 100%, but perhaps they modulate it for other reasons), it can be driven with much less energy than a scanned display for equal brightness.
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Old 03-21-2006, 04:04 PM   #40  
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Take a good look at them before buying a plasma, you may still want the plasma, but take a look at that XBR.
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Old 04-10-2006, 11:46 AM   #41  
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Post Another link about SED and it's advantages.

This link is page 2 of the article, The first page is mostly concerned with other display shortcomings. SED technology and how it works is explained.

http://hardware.gotfrag.com/portal/story/32044/?spage=2
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Old 04-16-2006, 07:54 PM   #42  
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New here, first post.

Was wandering the web looking for info on SED. I'm still using my Panasonic 27" CRT from 1998. But you know- looks fine. Was hoping to move up to a new TV this summer... probably a plasma as I really like the off-access viewing and brightness.

Heard about SED... wondered if it was worth waiting around for. Disappointed to know it will be probably 2-3 years before they become common and affordable.

Ah well.

At any rate, thanks to all for the useful info in this thread. It encouraged me to register.
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