has anybody tried using lcd from digital camera?
btw, has anybody tried using an lcd from a digital camera? It's probably not a very good resolution, but hey, if you have broken ones lying around, might as well put them to use 😎 . Again, if somebody did, how would you get s-video or composite video inputs?
btw, has anybody tried using an lcd from a digital camera? It's probably not a very good resolution, but hey, if you have broken ones lying around, might as well put them to use 😎 . Again, if somebody did, how would you get s-video or composite video inputs?
As far as driving a video camera lcd panel you should be able to do it. I have a sony camera that you can press a few buttons and the video outputs become inputs so you can feed composite into it. A digital camera would be cool but driving it would be hard I suppose you could have it look at another screen but I'm afraid the quality would be not good enough.
If anyone's interested, I've got an email out to the sellers of this item asking what the actual resolution was, and also the contrast ratio. If this panel is actually around 583 x 440 (as I clumsily calculated in a prior post), and has a decent contrast ratio, I think I'm sold.
I'll post as soon as I have something.
I'll post as soon as I have something.
Sony Playstation LCD Screen
I bought a Sony Lcd screen for 129.99, 138.49 with tax. It was really easy to take apart two screws above the screen and a two on each side of the speakers. The backlit is complety removalbe just snap loose the backlit cable. I dont know the resolution but it really high quality I could read all the words on the tv guide channel. Good panel to buy.
I'm building a rear projection projector, I check a few site for rear projection screenthe prices were high as hell!!! I went to wal-mart about a semi-transperant vinyl show curtain, it works really good for a rear projection screen.I'm trting to keep my tv thin I dont want to pass 7 inches thick like the one that fit on the wall. I went to www.anchoroptics.com and found a 4 7/16 lense with a focal length of 93 mm.
The lcd panel is going to a right angle from screen and have a big mirror at a 45 degree angle to project the image into the screen, since lense has a low focal length i can project a big image in a small area.
I bought a Sony Lcd screen for 129.99, 138.49 with tax. It was really easy to take apart two screws above the screen and a two on each side of the speakers. The backlit is complety removalbe just snap loose the backlit cable. I dont know the resolution but it really high quality I could read all the words on the tv guide channel. Good panel to buy.
I'm building a rear projection projector, I check a few site for rear projection screenthe prices were high as hell!!! I went to wal-mart about a semi-transperant vinyl show curtain, it works really good for a rear projection screen.I'm trting to keep my tv thin I dont want to pass 7 inches thick like the one that fit on the wall. I went to www.anchoroptics.com and found a 4 7/16 lense with a focal length of 93 mm.
The lcd panel is going to a right angle from screen and have a big mirror at a 45 degree angle to project the image into the screen, since lense has a low focal length i can project a big image in a small area.
Hi rmccoll,
You said that the resolution was really good. Is this with the projector or is it just the screen itself?
You said that the resolution was really good. Is this with the projector or is it just the screen itself?
rmccoll, good to see someone else trying the rear projection approach!
For some reason images are working now... attached is a crappy photo of a 1.2m projected image on a painted wall.
General progress:
My latest thought is to use a car headlight reflector housing and modify it to use the 250W EHJ globe. I took home an optical power meter from work and checked out my setup, and a couple of things were evident, I am not using the available light from the EHJ globe very efficiently, and consistency of intensity across the screen is not very good. Both these things you can really tell just by looking at the final projected image though...
Anyway I thought it is too difficult to build custom reflectors, why not cut an access hole in the bottom of a headlight reflector, mount the 10000 lumen globe, provide fine thread screw adjustment of position to trial and error find optimum bulb placement, add a heap of cooling to prevent the reflector housing overheating, and hopefully end up with 80% or better efficiency. I don't know what beam spread angle you get from a typical headlight, but hopefully a system of fresnel lenses will converge the light OK. Radiant heat might be the biggest problem, I might have to have another go and trying to get low-E glass.
For some reason images are working now... attached is a crappy photo of a 1.2m projected image on a painted wall.
General progress:
My latest thought is to use a car headlight reflector housing and modify it to use the 250W EHJ globe. I took home an optical power meter from work and checked out my setup, and a couple of things were evident, I am not using the available light from the EHJ globe very efficiently, and consistency of intensity across the screen is not very good. Both these things you can really tell just by looking at the final projected image though...
Anyway I thought it is too difficult to build custom reflectors, why not cut an access hole in the bottom of a headlight reflector, mount the 10000 lumen globe, provide fine thread screw adjustment of position to trial and error find optimum bulb placement, add a heap of cooling to prevent the reflector housing overheating, and hopefully end up with 80% or better efficiency. I don't know what beam spread angle you get from a typical headlight, but hopefully a system of fresnel lenses will converge the light OK. Radiant heat might be the biggest problem, I might have to have another go and trying to get low-E glass.
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gav said:
yeah, John Safran's high school humour makes me laugh 😀
My setup is in a bit of a permanent state of flux, but basically the 250W globe is in a little chassis from a slide projector with a little reflector, IR filter and a 2" PCX lens, lcd is madcatz ps1 5", lens is fujinon, and a couple of fresnel lenses to converge the light through the LCD.
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someone also asked about dismantling the ps1 screen, so here is another photo showing the lcd driver a bit more clearly. The two madcatz pcb's are just visible on the little mdf shelf under the lens setup, there is also a pal composite to RGB converter mounted there as well.
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I just want to settle things up: that 1.8 LCD is actually 176*220. That really sucks. 528/3=176 🙁
ahhh i see muzzman
thanks for the pics but i now know what the difference is my ps1 is made buy sony therefore my flat ribben is way shorter about 1 inch is all i have to play with any ideas? can i get a new flux cable an extention buy my own cold soldering plant/ well maby not the last one ......hehehe!
thanks for the pics but i now know what the difference is my ps1 is made buy sony therefore my flat ribben is way shorter about 1 inch is all i have to play with any ideas? can i get a new flux cable an extention buy my own cold soldering plant/ well maby not the last one ......hehehe!
Just an idea, but what about desoldering the flat cable connector and making your own cable? Very fiddly, and you will need to provide some strain relief on the board or the wires will rip straight off, but might be possible.
I dont get it? So did the madcatz ps1 lcd have the inputs you needed or did you have to rig somthing up? Basically how the heck did you plug your vid in and power it up?😕
DaViruz said:
You prob. already know about it. But have you seen this one. Its a Sony lcd. Its rca input ready 12v powered and comes with the driver board. ITs as thick as a US quarter and about a slide size dont know the res. and stuff though. If ya find out let me know though.
Check here:
http://www.spybag.com/cgi-bin/spybag1/SB3002.html
O.K. I see now. Some of the ps one panels have aux inputs. Does the madcatz work right without any modding though. I found threads searching on this and some cant get it to use the aux without having it pluged into a psones port. How did you get around that. Thanks for your input, cause this really interests me. Do you like the colors it gives and the contrast etc?😕
Tinker:
That little 2" lcd is too low resolution really. It says 440 lines, but probably means 220 or less with some electrickery in the driver to make it appear more. But even 172x220 res is 37840 pixels, so 20,000 is even worse than that!
That's interesting about ps one screens not being able to use the aux without being plugged in. I know that I have seen at least one unit that advertised that you could use it like a mini telly without a ps one connected at all, just power and composite video in.
Basically the madcatz one was the only one I could get cheap locally, so I took the plunge and went for that. The madcatz one doesn't have an aux in, and I was hoping it used the composite out from the ps1. However it doesn't, it actually uses both the composite and the RGB lines on the ps1 port. The RGB for the video, and the composite line for just the video sync. It doesn't use the 5V line from the ps1 at all, it relies on the DC 7.5V with an internal regulator. Unless you know what you are doing video and electronics wise, I wouldn't recommend going for anything except one with an aux input that definitely doesn't require the ps1.
So saying, the units with aux inputs that still need the ps1 might only be drawing 5V or something from the ps1 port. If they are accepting external composite video, they really don't need anything else but power from the ps1...
Mine had a pass through power jack. You plug the ps1 plug pack into the back of the screen, and the screen in turn has a hidden jack that plugs into the ps1 itself.
I don't have any specs on contrast ratio or even res of the 5" madcatz, but I am reasonably happy with the performance. The res is pretty low though, I reckon about 400x220. Colours are ok, picture looks fantastic on the screen itself (leaving all the projection problems out of it).
That little 2" lcd is too low resolution really. It says 440 lines, but probably means 220 or less with some electrickery in the driver to make it appear more. But even 172x220 res is 37840 pixels, so 20,000 is even worse than that!
That's interesting about ps one screens not being able to use the aux without being plugged in. I know that I have seen at least one unit that advertised that you could use it like a mini telly without a ps one connected at all, just power and composite video in.
Basically the madcatz one was the only one I could get cheap locally, so I took the plunge and went for that. The madcatz one doesn't have an aux in, and I was hoping it used the composite out from the ps1. However it doesn't, it actually uses both the composite and the RGB lines on the ps1 port. The RGB for the video, and the composite line for just the video sync. It doesn't use the 5V line from the ps1 at all, it relies on the DC 7.5V with an internal regulator. Unless you know what you are doing video and electronics wise, I wouldn't recommend going for anything except one with an aux input that definitely doesn't require the ps1.
So saying, the units with aux inputs that still need the ps1 might only be drawing 5V or something from the ps1 port. If they are accepting external composite video, they really don't need anything else but power from the ps1...
Mine had a pass through power jack. You plug the ps1 plug pack into the back of the screen, and the screen in turn has a hidden jack that plugs into the ps1 itself.
I don't have any specs on contrast ratio or even res of the 5" madcatz, but I am reasonably happy with the performance. The res is pretty low though, I reckon about 400x220. Colours are ok, picture looks fantastic on the screen itself (leaving all the projection problems out of it).
Tinker,
I, too, had been thinking about using that panel. (Spybag had it cheap on ebay) Anyways, here's the info sheet on that panel (not the board) from Sony:
http://www.sony.co.jp/~semicon/english/img/sony01/a6802586.pdf
The contrast ratio is decent enough, however the actual resolution (~290 x 220) is the pits.
I, too, had been thinking about using that panel. (Spybag had it cheap on ebay) Anyways, here's the info sheet on that panel (not the board) from Sony:
http://www.sony.co.jp/~semicon/english/img/sony01/a6802586.pdf
The contrast ratio is decent enough, however the actual resolution (~290 x 220) is the pits.
I dont know the brand or anything just that its third party. This is the one I just got. It says camera, and dvd inputs (rca) and can watch movies on it. http://cgi.ebay.com/ws/eBayISAPI.dl...4983&ed=1029874880&ssPageName=ADME:B:EOA:US:2
This should be one that works solo right? As in it should work without being pluged into the psone. Watcha think MuzzMan? The threads I found where people were having trouble. I think I know what panels they had. The Sony brand ones. It seems it has a camera only type input (mini jack of some type), no rca. So you cant watch movies and plug other consels into it. Atleast thats what the review on the Sony one I found said. So maybe the madcats and interact etc. ones dont have this prob. As most do seem to offer in and some even a vid out jack. I like the photo of yours. Looks pretty good, especially for its size. After all it is only a 5" lcd. I'm going for about a 4' image. Did you have any prob.s with heat from the bulb or does the panel hold up pretty good to it? I'm questioning what size bulb to use in a 5" projector. Lots of info on the smaller and larger (like 8-10") OHP types but the mid range is a little void on info. Like a 250-300watt MH? Any tips since you have done this with a similar panel would be very helpfull. Thanks.😀
This should be one that works solo right? As in it should work without being pluged into the psone. Watcha think MuzzMan? The threads I found where people were having trouble. I think I know what panels they had. The Sony brand ones. It seems it has a camera only type input (mini jack of some type), no rca. So you cant watch movies and plug other consels into it. Atleast thats what the review on the Sony one I found said. So maybe the madcats and interact etc. ones dont have this prob. As most do seem to offer in and some even a vid out jack. I like the photo of yours. Looks pretty good, especially for its size. After all it is only a 5" lcd. I'm going for about a 4' image. Did you have any prob.s with heat from the bulb or does the panel hold up pretty good to it? I'm questioning what size bulb to use in a 5" projector. Lots of info on the smaller and larger (like 8-10") OHP types but the mid range is a little void on info. Like a 250-300watt MH? Any tips since you have done this with a similar panel would be very helpfull. Thanks.😀
Nexzus said:
Ahh, it seemed to good to be true. And for the price I found you can get a 5" lcd so I guess its no point. Would have been very good for a slide projector though-if it hadnt been for the low res deal.🙁
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