I know this question has been answered somewhere deep inside one of these threads, but I can't find it. And of these controllers come with a remote for video switching? Innitially I was just going to put all the video sources through an A/V receiver and then use a single cable to run from the receiver to the PJ. Problem that I've just found is that I can't find a receiver that can handle the resolution of 1920x1200, which is really important for me with my Home Theater PC.
So, adding another remote?

I was reading the WUXGA Fyi thread and the specs listed in the first post show the Samsung LTN154U1 panel with a 300:1 contrast ratio. The link to Samsung's website off Johnzo's website shows that panel to have a 600:1 contrast ratio.

The newest ones may have 600:1 contrast ratio. But more likely that is just the newer panels with better backlight materials.

Contrast ratios mean next to nothing for our purposes as they almost always depend heavily on the backlight reflective layers used.

I installed a fresh windows and connected the graphic card MSI Radeon 2600 XT to MST controleur on VGA input.
By defaut when the graphic card is not reconize (before driver installation) Windows display to 640 x 480.

The screen appears properly (streched) to WUXGA screen (LCD panel is a Samsung)
After drivers installation (framework 2.0 etc...) and rebooting the computer, the MST controleur display "unsupported". If I hot unplug the vga cable and plug it to 15" monitor, the screen appears properly after rebooting the computer but never on MST controler. I use juste one screen to VGA no other input are connected.

I cannot switch directly to 1920 x 1200 because after ATI driver installation the MST controller stay to "unsuported".

Someone can post Resolution + Frequency wich works in VGA with MST controller ?
I saw in MST's setting menu, it is possible to change phase, clock manually. What value I must set in ?

The auto setting function (button on the remote control) doesn't solve this frequency problem.

An idea ?

Edit: I found the solution the MST firmware is generic, so it send wrong EDID (Extend Display Identification Data) information from DDC (Display Data Chanel).
It send 1920x1200@85Hz so the hardware can work only to 1920x1200@60Hz

So with Catalyst the solution is to disable EDID and limit manually the refresh rate frequency to 60 Hz:





after this handling it is possible to select 1920x 1200@60Hz :

Okay I have a few questions about this; thinking of tackling a HD projector build. My first question is there a Controller that has HDMI input? I would like to be able to run this W/O my PC hooked up. Second, what qxga screen has a really fast refresh rate? And also is there a control card that can display in that high of a resolution? Is it worth it to get qxga? i saw one on ebay for $300. Any other advice woul be appreciated. Thanks in advance.

The MST and the Kontron board can both accept DVI or HDMI inputs, and you can hook up the other connection with an adapter cable that has a different connector on each end. You will lose the HDMI audio this way, but if you were hooking up say a blu ray player in a home theater you would probably be outputting the audio separately to a receiver anyway over S/PDIF or optical.

The only problem is that the Kontron board doesn't support HDCP yet, so if you buy one right now and hook up a blu ray player through HDMI it wont work because of the retarded copy protection. The MST board has HDMI and HDCP built right in, but I believe it costs more and doesn't have 1:1 pixel scaling. So the panel would scale 16:9 content to fill the screen, distorting the image. Non widescreen content would look even worse. If you are not using a computer this is the biggest concern you should have.
http://www.lumenlab.com/forums/index.php?showtopic=15376

You should probably wait for the Kontron boards with HDCP, they might even put an HDMI connector on the newer boards later. (its looking to be March for release of these new boards)
http://www.lumenlab.com/forums/index.php?showtopic=22585
Chance are if you start building a projector now, maybe by the time the new Kontron board is available you will be ready to use it.

As for your other question, are you asking if you can use something like say the 15 inch 2048×1536 that I have heard exists? Well all these boards we are using probably don't support that LCD as far as we know. (most up to 1920x1200) You would need a dual link connection as well to use one digitally.
For $200-$300 your better off getting a WUXGA 15.4 inch panel like were all talking about in this topic.
If you want insane resolution you could buy one of those Dell or apple 30 inch 2560×1600 LCDs, get some special order fresnals and use that with a ridiculous high powered light engine. (1000+ watt bulb or multiple bulbs)
However the box for that would be pretty big.

For about $300 you can also get that new 7.2 inch (think its 7.2) 1280x768 LCD complete with controller board and cable, so you can make a normal sized 720p projector out of that, it would also cost less and be easier to build for a first time build.
http://www.lumenlab.com/forums/index.php?showtopic=21523
If you calculate the width and hight of the 7.2 inch, and add about an inch to each of those, then have a 3rd dimension measurement of about 20 inches, that is how big you could make a "straight shooter" 720 projector. It would be a lot more portable than most 15.4 inch ones. My wooden box has outer dimensions of 18.5x18.5x40 inches. If you make a cardboard/paper model you will see how big it really is.
If you build a small projector you might be able to upgrade to a 1080p panel in the future when they become available. The 15.4 inch is definitely the way to go right now though for a proper home theater projector.

Nope that project has been put on hold and may never come about.

?? Can you say what happened ?

As previously speculated , the ffc is nearly impossible to extend.

It might still happen though. A couple of people are working on it.

Im getting in a new 15.4 controller board. It will have 1:1 on HDMI. No promises yet, still need to test it.

Are you saying it will have the 1:1 only on the hdmi or is that something that will have to be tested on all inputs?

HDMI is practically the same as component aint it? Surely they'd run through the same circuit... ?? I dont have a clue about this ort of thing, but it just seems like common sense signals are going through the one chip and the same signals will be processed in the same way.

I just thought id put my 2 cents in.

1:1 pixel mapping is very nice!!

HDMI use digital transmission and support HDCP encyption, composant use analog transmission without encryption, the cables must be short with composant for not decrease signal quality (as VGA)

HDMI can also contain audio flow:

V1.0 - two-channel PCM audio up to 48kHz/24-bit including standard Dolby 5.1 and DTS 5.1 bitstreams (as S-PDIF).
V1.1 - up to 8-channel PCM audio up to 192kHz/24-bit.
V1.2 - as V1.1, plus DSD audio (for SACD) at 1.824Gb/s.
V1.3 - as above, plus Dolby Digital+ and DTS-HD enhanced audio.

Hi, This is my first post (I'm so proud). I have a slightly off topic question which relates to the controllers.

My Assumption
It is my understanding that the lcds are slightly more light transmissive from front to back. Since the triplet lens flips the image (H & V) we can only take advantage of this in a rig with light folding in front of the lcd. Unfortunately the cost of folding more that negates any potential benefits.

If we have a controller which can do flipping (H&V), without the mirror, then we can put the lcd in reverse and gain some lumens.

If the above is true then is the gains significant, especially since it would cost us nothing.

This has been researched to some extent but TTBOMK there has never been a quantifiable significant gain in transmissivity so the whole idea never "caught fire". In fact, I recently had a very short discussion via PM with another moderator and we both are hard pressed to come up with a reason why there would be a significant difference in transmissivity dependent on the direction the LCD panel is placed within a typical enclosure. As always, YMMV.

DO you know if any of the Dell WUXGA monitors are compatible?

Yes, some of the Dell replacements panels on ebay are useable. Don't have any hard details for you though.

I have a question. (beg your pardon if this is the wrong place.. )

So I'm starting to get all my parts together for the 15.4 wuxga PJ. For the triplet lens I ordered an 18'' belser from ebay and for the fresnels I ordered the LL pro set. My question is do I need to somehow cut the fresnels to match the size of the LCD? or just make the box huge and just center everything?

fresnels made for 19'' LCD's are huge compared to the 15.4 right? So whats my best solution?

Thanks
--> G

either will work if you want to buld your box that big might be helpful if you have problems down the road or something and then you could throw a 19 or 17 in it its up to you

Whats the best way to cut a fresnel lens? Im guessing its not a good idea to do it with a table saw..?

I did it twice (table saw method)both on fused OHP fres seemed to work fine but everybody else uses those knife found by the lexan section of the home improvement stores. 2 very important things make sure the center stays the center cut off equal on all sides and dont scratch them up especially if you run them on the table saw like I ..... I mean somebody did.

I don't suppose Johnzo has posted any more info about the new controller that may do 1:1?

Worked fine for me on 2 OHP fused fres

What exactly does "OHP fused" mean?

Somebody made a nice post about cutting fresnels a while back. Basically, I think most people just score it a couple of times with a utility-type knife, then have the part you're breaking off hang off the edge of a table and just snap it off.

That's a term for the fresnels from an Over Head Projector or OHP. The fresnels are "fused" together as in glued together.

I just got my besler in the mail today but it looks really big.. is this normal?

http://www.lumenlab.com/forums/index.php?s...st&p=256169

Yep that's the size of it alright.

It's a monster

you rock bud! thanks for the fast response!

what is the best results as far as bulb position/angle: vertical,horizontal,diagonal ?

I have mine standing vertically, as do a lot of others.
Some have theirs horizontally mounted too.
I don't think the T15 bulb LL sells is very picky about mounting orientation. (I think LL's wiki or somewhere else has bulb orientation info)
I will also back up that yes the 18' Beseler is supposed to be big and heavy enough to crack somebody's head open if you were to hit them with it.

Mine does say Charles Beseler before East Orange company and says 18" EF series III at the end.
Either way its still the same focal length and there is no known quality difference, just clean that thing off, prop your fresnals up when you get them and marvel at your first test projection.
I'm almost done with my 15.4 inch using pro fresnals, beseler 18", LL lamp kit, and that cold IR reflector LL sells. I will make a plog, maybe even start this weekend on it.
Jonjandran's plog is good too for you to refer too.

Anyway getting back on topic (I'll save the rest of your questions for your plog topic), where is a good place to order a WUXGA new right now? That is the next thing I need to do on mine. I leaning towards getting a sharp or LG panel.

I got a new sumsung off trade channel. I'd try there first. Otherwise ebay is probably the best bet. All the new panel sites out there that i've seen seem way expensive.

Thanks for the response -bill- I am using pretty much all the same stuff. Are you going to cut your fresnels down? Or just leave them be? I think i've decided to just make an enclosure to match the size.

If you believe you'll wish to do an antiglare strip I highly recommend (at least at this moment in time) to avoid the LG. I'm in the middle of some antiglare stripping experiments and the LG is way, way, WAY difficult compared to the Samsung I've stripped.

I fit my box to the fresnals, not the other way around. (no fresnel cutting)
Now that its fall break I plan on getting some pictures up here this weekend.
Especially for your first build, a bigger box with more room to work with is always better.
Also with these large full size projectors you have more room in the future to upgrade to multiple light bulbs, LCDs, and possibly new cooling solutions. I can even fit a desktop computer mobo and graphics card and stuff in mine in front.
If I were you I would save the major cutting till you do a second build using a 10 inch or smaller panel, cut those down to size and you could have a really small and portable homemade projector.

However if you take your time with a sharp knife then break the sides off while holding the rest of the plexi on the table I hear its not too hard to cut.
If you make a box with less than 18"x18" inside dimensions you might want to cut the lenses so they are not as tall, (like 1-3 inch off) so you can have extra room on the bottom for the cables to go under the lens, as well as the air from the top fan(s).
You also might want some extra space on top for the top fan(s).
With the pro fresnels from here and the 18" EF you probably want a box at least 35 inches long, but you probably want a few extra inches so you have room to work with. Behind my bulb I have the 2 fans, power socket, fuse, switches, and video inputs. (have composite, s-video, component, and VGA installed so far)
I would probably have to move those out of the way of the bulb if my box was not 40" long. (that is total length, inside is about 39)

The new controllers have arrived, still no 1:1. They have added more zoom options but still no 1:1 or 16:9. Anyways it has 16:10 full which looks great.

What kind of controllers are they? Are you selling them right now? If so how much? Thank you

Someone is selling a controller to me relatively cheap. He says its hdcp compliant but i really dont trust him until tested. The controller has hdmi so is this a good chance it really is hdcp compliant?
Is the hdcp stripper expensive?

The 15.4 MST controllers that I have been selling in my store. $225

please can you add in your sign the adress link for your store

Until then: Johnzo's Website/store - http://stores.miva.com/express/merchant.mv...de=manhattanlcd

Ok guys I have some more info. I can get the 1:1 controllers, but I will need to do a group buy. The miniumn order is 50. I need about 25 people to sign up for the group buy then I can order the controllers.

The price will be between $225-275. Dont know yet. W/ Fedex Express (2day) shipping.

The controller (MST w/ HDMI) will have 1:1 and 16:9, comes with all the cables, remote, and power supply.

Can you give us any more info than that? Have you tested one personally? It's a nice deal.

johnzo, Thanks for the info. What about HDCP? Looking forward to more info!

how about split screen pip like a dual input thing.

from the kontron manual When “Side by
Side” is selected the “Main Picture Channel” and
the “PIP Channel” are shown side by side in the
same fixed size.

g2a» Picture in Picture & Picture by Picture (Split screen) supporting Graphics on Video, Video on Graphics?

Not yet, but Im going to. I wont order the controllers until I have tested 1 to make sure 1:1 is on there.



YES

I'm in for the group buy too if it does 1:1

I'd rather the Kontron - but don't know if I want to wait that long.

When you say "cables" does that include a cable to connect to a LCD? I know that's one thing that is going to make Kontron a pain unless we can find a prefabbed cable.

If the answer is yes, and you confirm HDCP, count me in on the group buy.

excellent news. Looking forward to your test of the controller.

While I too would prefer the kontron if the specs are close to being the same count me in.
I assume it has composite, s-video, component (with 480i/480p/720p/1080i?), VGA, HDMI/DVI with HDCP and proper 1:1, 16:10, 16:9, 4:3 support?
That should cover everything I would be using. I doubt I would be using the upgradeability of the Kontron board anytime soon or the Faroudja chip. (I've heard it causes problems anyway on the Dell LCDs that come with it)

Faroudja is owned by Genesis. This controller per Johnzo above has an Mstar chip.
Mstar does license the Faroudja technology from Genesis (after being sued for stealing it) but I have no idea if it's in the chip that will be in this controller.

Sounds like the same controller as the previous one, just programmed to support a 1:1 pixel mapping.
That is something that is not commonly done on the LCD TVs these kind of controllers are actually manufactured for, because most consumers when purchasing a TV want the picture to fill the whole screen, because they don't know how it actually might affect the image.