Converting an old AirPanel to LED Backlighting - Thread


	UER Store
	order your copy of Access All Areas today!


	Activity
	699 online Server Time: 2024-05-07 20:09:05


	Visit
	Infiltration Access All Areas AvBrand

UER Forum > Journal Index > Av's Bloggy-thing. > Converting an old AirPanel to LED Backlighting (Viewed 1418 times)

Converting an old AirPanel to LED Backlighting
entry by Avatar-X
1/5/2010 12:06 AM

A few years ago, a friend of mine gave me an old ViewSonic AirPanel as a gift. "Do something cool with this" he said. And I did! I mounted it into my hallway as a public-info Touchscreen, for passersby. You can see it on the DoorBuzzer page, near the bottom.

Anyway, the backlight inverter recently died. It was a specialty part for a rare screen, so the chance of finding a replacement inverter was slim to nil. I decided to go with LED backlighting.

First, I tried a home-made rig of 6 LEDs wired in series:

But this resulted in a really, really dim screen with noticeable "hot spots" where the LEDs were.

So, I perused eBay and found a company selling a 24-LED strip, running on 12v, for $7. I ordered it, and although it took a month to arrive, it turned out to be just the right part. I mounted it into the case of the AirPanel:

Since it takes 12v, I used a 7812 regulator to turn the 19+ V the panel gets in, into regulated 12 volts:

And heatshrinked the connectors to keep them secure:

The final project still doesn't look quite as good as the original backlight did, but at least this one will last quite some time now!

A good solution to this problem, I think.

[last edit 1/5/2010 12:07 AM by Avatar-X - edited 1 times]
Modify Entry

Comments: (use Reply to add a comment)

Avbrand Blog Commenter Comments from the AvBrand Blog Total Likes: 3 likes \| \|	AvBrand Blog Comment: Leon < Reply # 1 on 1/6/2010 1:28 AM > \| Reply with Quote

	Nice fix, hope the regulator doesn't get too hot. Perhaps if you frosted the leds with some sandpaper you might reduce the hot spots but after all, the screen is only used for a quick glance.

Avbrand Blog Commenter Comments from the AvBrand Blog Total Likes: 3 likes \| \|	AvBrand Blog Comment: Tom < Reply # 2 on 1/8/2010 12:22 PM > \| Reply with Quote

	Awesome way to fix the screen! Just wondering why that close door button has appeared? Does it do that when the door is open?

Avatar-X Alpha Husky Location: West Coast Gender: Male Total Likes: 765 likes yay! \| \| \|	Re: Converting an old AirPanel to LED Backlighting < Reply # 3 on 1/8/2010 3:32 PM > \| Reply with Quote

	Hi Tom, Yeah, it does. It's part of my new motorized door, which I haven't yet documented on the site. -av
	huskies - such fluff.

Avbrand Blog Commenter Comments from the AvBrand Blog Total Likes: 3 likes \| \|	AvBrand Blog Comment: Tom < Reply # 4 on 1/9/2010 4:17 PM > \| Reply with Quote

	Awesome! I would love a motorized door! I would love it you documented it, I might go down to my local electronics store and try to build one!

Avbrand Blog Commenter Comments from the AvBrand Blog Total Likes: 3 likes \| \|	AvBrand Blog Comment: Philpax < Reply # 5 on 2/13/2010 7:36 AM > \| Reply with Quote

	Do you still have a link to the ebay auction where you got it? I'm looking into a similar project.

Avatar-X Alpha Husky Location: West Coast Gender: Male Total Likes: 765 likes yay! \| \| \|	Re: Converting an old AirPanel to LED Backlighting < Reply # 6 on 2/16/2010 2:36 PM > \| Reply with Quote

	Hi, Just search for "LED Strip" on eBay. There's tons.
	huskies - such fluff.

UER Forum > Journal Index > Av's Bloggy-thing. > Converting an old AirPanel to LED Backlighting (Viewed 1418 times)

Add a poll to this thread

This thread is in a public category, and can't be made private.

All content and images copyright © 2002-2024 UER.CA and respective creators. Graphical Design by Crossfire.
To contact webmaster, or click to email with problems or other questions about this site: UER CONTACT
View Terms of Service | View Privacy Policy | Server colocation provided by Beanfield
This page was generated for you in 109 milliseconds. Since June 23, 2002, a total of 740956650 pages have been generated.