DIY LED?

imamosher

imamosher

imamosher

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I'm looking to put LED lights behind the tv as in the Philips ambilight tv, could anyone reccomend somewhere to pick these up or anyone that has done this.

Would there be a vast difference between say a 9" cathode as opposed to a 15" I dont want the light behind the tv too over powering just something that gives a subtle glow.


thanks
 
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Ambilight changes colours though. I take it you are just after a rtear light?

I use cold cathodes on my PC monitor, and red=pink. You can always buy lighting Gels (Around £5 per sheet) to get the exact colour. You can remove ends of cathodes and roll it in. This will also 'wind down' the brightness after every layer of gels.

I believe they are around 4-5W including inverter and dual cathodes. But I am not sure!
 
I have never tried this, or been to anybody's house where they have this kind of setup, but I imagine it would give eye strain after a while and/or decrease contrast clarity of the TV picture?

Also, I always thought it would be interesting to build an ambilight by sampling the video signal and triggering a light with the averaged colour of the TV picture.. somehow..
 
Actually, I find it helps reduce glare and eye strain at night. I have them behind my PC monitor and gives a much easier experience.
 
- Yes they're meant to decrease eye strain and give the impression of a more involving, larger screen. However they never really seem to have taken off..
 
imamosher said:
I'm looking to put LED lights behind the tv as in the Philips ambilight tv, could anyone reccomend somewhere to pick these up or anyone that has done this.

Would there be a vast difference between say a 9" cathode as opposed to a 15" I dont want the light behind the tv too over powering just something that gives a subtle glow.


thanks
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cathodes and leds are two different things. :)
 
Ikea £50 , they look awesome & change colour, have 3 bars taped to the back of my panasonic plasma
 
Looks good - would be good if it stayed one colour though, or emulate the colour on screen ala ambilight
 
There are various settings whereby you can have it cycle through or just stick to one colour, depending on what you want.

Forgot to mention this is a bedroom setup.
 
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Kol said:
Looks good - would be good if it stayed one colour though, or emulate the colour on screen ala ambilight
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To emulate ambilight, you would probably need some sort of camera pointed at the screen, an ADC, some sort of DSP to determine the overall colour, a DAC, and you can get LED's now which have seperate RGB inputs (3 voltages), so it's possible in theory I guess.

Someone may have done this already, if not, good luck! :)
 
MikeHunt79 said:
To emulate ambilight, you would probably need some sort of camera pointed at the screen, an ADC, some sort of DSP to determine the overall colour, a DAC, and you can get LED's now which have seperate RGB inputs (3 voltages), so it's possible in theory I guess.

Someone may have done this already, if not, good luck! :)
Click to expand...

Sounds like a fun but technically challenging project ... bit too challenging to moi.
 
Kol said:
Sounds like a fun but technically challenging project ... bit too challenging to moi.
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If someone has already done a diy version, it wouldn't really be too hard to clone, but if they haven't then I agree it could turn out to be a lot of work for something so simple... I don't think I would be able to do it either without learning how to write DSP code, but if I do come across someone who has managed to pull it off, I'll post in this thread. :)
 
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