Would it be possible to remove an old, broken/dim/discoloured, flouresant from a laptop LCD, and then replace it with an array of those small surface mount LED's like they use to put on hard drives? (basicly just a couple of pins, on a tiny peice of breadboard and a spec of plastic covering the element) Would it be bright enough? Would the plate behind the LCD dispurse the light enough? I think I can fit roughly 20-30 of them across the top of my LCD if I etch my own PCB. I'd most likely have to use an external battery pack, but I'm not woried about that. I'm confident in my soldering skills and fairly confident in my knowledge of wiring LED's in an array.
HAs anyone done this? Know someone that did it? Anyone see a problem with it? Comments? Suggestions, etc..? Would be greatly appreciated. Thanks. 🙂
David
HAs anyone done this? Know someone that did it? Anyone see a problem with it? Comments? Suggestions, etc..? Would be greatly appreciated. Thanks. 🙂
David
this is exactaly what i am doing. Find the forum, verbose mustafa project update. I intend to use the leds for projection. I'm am pricing 10,000 - 20,000 mcd leds. Read the forum, as it explains, i have already projected a good image simply using the backlight from the lcd. In your case it will work fine, but you may need to find an old lcd screen for extra parts to use.
I'm not projecting. This isn't part of a projector project. I won't be doing that untill I return home from the holidays. I'm wanting to repair my dim laptop screen. The flouresant is going on it, and that is what I was asking about.
That sounds like it would work. 🙂 I'm anxious to hear what your results would be.
Of course, the less-cool way would be to go over to http://www.allelectronics.com/ and buy a new CCFT and line your LCD with that.
However, I'm more anxious to hear how it would work with the LED's. 🙂
Let us know what you do!
--Clint
Of course, the less-cool way would be to go over to http://www.allelectronics.com/ and buy a new CCFT and line your LCD with that.
However, I'm more anxious to hear how it would work with the LED's. 🙂
Let us know what you do!
--Clint
How about 75 LEDs for about $5.00 US Dollars sound?
http://www.foreverbright.com/
They are sold as christmas lights. Cheap enought to experiment with then when theory is confirmed you can confidently spend the big bucks on better LEDs.
http://www.foreverbright.com/
They are sold as christmas lights. Cheap enought to experiment with then when theory is confirmed you can confidently spend the big bucks on better LEDs.
verbose mustafa said:
Actually, according to my calculations, we might be able to get by with LED's that are as low as 6000 mcd. I really don't know how the brightness of CCFT's relates to a row of high-output LED's. Until we know that, we don't know if we'll be able to get by with lower-output LED's. I think that commercial LED high-output light sources are a viable option at least for experimentation.
--Clint
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