Well i'm upgrading my card board project up to a OHP with a lcd panel or screen. well for starters I have a lcd monitor ripped apart and all set on the overhead only prob is theirs no vertical resize so the image is off, and I basically have the fcc cable ducted taped, so now what I'm woundering what are some good LCD Panels the ones that are made to go on a Overhead, what are some of the better ones for around say 50-100 bucks want to have a good quality so i can hook up my xbox 360 up to it, anything is better then this 19inch 1970 tv i have. THNKS
ScubaSteve18 said:
I found this website to be very helpful…
http://members.cox.net/rolm/results.html
From my experience, the higher the resolution the more features they usually have and the better off you are. An active matrix LCD is a must. More colors are better than less, 16.7 million being the highest. Nview & Proxima seem to be popular and Sharp is the king of projector panels.
I have a Sharp QA-1750 if you interested. Email me for details 🙂
Zaner21
I am interested in an affordable Sharp 1750....so if you still got it Zaner, send me the details.
For some reason I couldn't (pm) you either.
- PotsiE
For some reason I couldn't (pm) you either.
- PotsiE
Potsie said:
I actually had two but I listed them on a local internet classified ad and the same person bought them both, yesterday of all days. Sorry :-( Check your local school/University surplus. That is where I purchesed all of mine from. Good luck I hope that website helped you.
Zaner21
I have compiled some info on some panels that I have used Proxima , Sharp ,etc. . In my latest project I stripped a 14" lcd panel and reconfigured the original monitor frame to create a modern Projection panel. The 14" is about 1/2" wider than the OHP stage on both sides ,so I masked it off and it works great. You can see some pictures and specifications for these panels here
http://mysite.verizon.net/yub_yump/14%20inch%20goodmans.htm
http://mysite.verizon.net/yub_yump/14%20inch%20goodmans.htm
yeah cookie - found your site a few days ago - SWEET! I actually started bidding on a 1750 today - ends in 2 days..... cross ur fingaz for me!
yea well been looking on ebay alot and alot of them are missing parts or their complete and have 2-6 days left which i always forget to bid on, and woundering if anyone has any that arnt being used thnks.
I also have the opportunity to also pick up an ASK Campus 700 - but it does not come with a remote. Is it functional without the remote, or should I pass on it??
Darnitall - it's hard to find a good panel.
Darnitall - it's hard to find a good panel.
It needs the remote to function!! I would pass on it if there is not a remote.
Here is the link to the campus 700 user manual
http://www.askproxima.com/service/Campus700/Campus700.asp
Page 11 section 5.1 tells you that the remote is the main user interface
Here is the link to the campus 700 user manual
http://www.askproxima.com/service/Campus700/Campus700.asp
Page 11 section 5.1 tells you that the remote is the main user interface
Cooling with a custom Designed Case
I am very impressed with your mod. and want to build one for me too. But i have a concern with the cooling. Please correct me if i am wrong, but imho, Since you are using two glass panels, it will cause a green house effect and thus eventually raise the temperature to a much higher value.
I have a 7300 lumen elmo and its reaching 96 degrees at the center of the screen (screen showing a black wallpaper) with a powerful office fan at full speed.
While doing my temperature tests, the screen was completely black( as it absorbs the most heat),I noticed that the temperature difference between the center(3mm by 3mm spot) and the edges of the screen can be 8-10 degrees. I think this may be due to the focus of the fresnel lense. The readings were made using an infrared thermometer.
can you please verify your readings at the center ,also ill be happy if you could give me some sugesstions on cooling the lcd
cookie said:
I am very impressed with your mod. and want to build one for me too. But i have a concern with the cooling. Please correct me if i am wrong, but imho, Since you are using two glass panels, it will cause a green house effect and thus eventually raise the temperature to a much higher value.
I have a 7300 lumen elmo and its reaching 96 degrees at the center of the screen (screen showing a black wallpaper) with a powerful office fan at full speed.
While doing my temperature tests, the screen was completely black( as it absorbs the most heat),I noticed that the temperature difference between the center(3mm by 3mm spot) and the edges of the screen can be 8-10 degrees. I think this may be due to the focus of the fresnel lense. The readings were made using an infrared thermometer.
can you please verify your readings at the center ,also ill be happy if you could give me some sugesstions on cooling the lcd
ScubaSteve18 said:
cookie said:
Hi, you don't need to buy a new LCD or a projection panel. you may still be able to use your existing LCD. All you need to do is download a Software called power strip http://www.entechtaiwan.com/ps.htm
This software will allow you to resize the image on your LCD and use custom resolutions. However Some graphic cards may not support it. So good luck & let me know if it worked!
ScubaSteve18 said:
Hi, you don't need to buy a new LCD or a projection panel. you may still be able to use your existing LCD. All you need to do is download a Software called power strip http://www.entechtaiwan.com/ps.htm
This software will allow you to resize the image on your LCD and use custom resolutions. However Some graphic cards may not support it. So good luck & let me know if it worked!
007,
Do you have the LCD laying directly on the stage of the OHP? If you do then try raising it up a 1/2" or so to allow airflow around the bottom of the lcd. Bigger isn't always better. Try using a smaller fan that will be more focused on the bottom of the LCD where more of the heat is.
I haven't noticed any green house effect at all. Regular projection panels use glass on the top and bottom. I think it creates a more efficient flow of air around the LCD. It actually creates a "wind tunnel" effect that maximizes the cooling of the panel. Here is a drawing of the side view of my panel I retro-fitted. You can see that no air is wasted and all of it is directed to remove any heat away from the panel.
stripping an LCD and creating a modern projection panel
http://mysite.verizon.net/yub_yump/14 inch goodmans.htm
Do you have the LCD laying directly on the stage of the OHP? If you do then try raising it up a 1/2" or so to allow airflow around the bottom of the lcd. Bigger isn't always better. Try using a smaller fan that will be more focused on the bottom of the LCD where more of the heat is.
I haven't noticed any green house effect at all. Regular projection panels use glass on the top and bottom. I think it creates a more efficient flow of air around the LCD. It actually creates a "wind tunnel" effect that maximizes the cooling of the panel. Here is a drawing of the side view of my panel I retro-fitted. You can see that no air is wasted and all of it is directed to remove any heat away from the panel.
An externally hosted image should be here but it was not working when we last tested it.
stripping an LCD and creating a modern projection panel
http://mysite.verizon.net/yub_yump/14 inch goodmans.htm
hey thnks ill try that program out but i bought a ffc extension cable for it and yeah i have to like mesh the two together somehow to make the picture stay and i also bought a portable dvd player its 7" and widescreen and had av inputs so i stripped that apart and now its all set but i cant get a picture on the lcd i disconnected the ffc cable so i could take the backlight off without breaking it, and now when i rehook it up i can get a picture i can get like wierd colors u n ofrom the signal and at a point i had it where i had the actual picture on it but it didnt stay when i locked it. so anyideas their
tried the program on 3 different video card scouldnt get the picture small enough so that it showed up without it cut off, andn ow after i messed around with that i cant get a picture on that lcd also im guesiing something has to be leveled in a certain way to work haha anyways any ides would love for the 7" widescreen lcd to work paid 100 for it so it was a good deal thnks radio shack haha i work their so i got a 10% discount its the Axion one its on cleareance for 100bucks so pick it up a good pic for the price and has av in/ouit so. yeah also got dead rising for xbox 360 cant wait to play that on a big screen
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