Search found 8 matches

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by zachnfine
Sat Jan 17, 2015 11:40 pm
Forum: Display Devices
Topic: Retina iPad Display
Replies: 120
Views: 217050

Re: Retina iPad Display

Removing the polarizers is not too diffucult, replacement can be done, but the non-uv blocking polarizers are expensive and then there's the potential damage to the liquid crystals when exposed to UV. I think eventually it will be the way to go, perhaps a custom LCD can be made for our purpose one ...
by zachnfine
Sat Jan 17, 2015 10:09 pm
Forum: Display Devices
Topic: Retina iPad Display
Replies: 120
Views: 217050

Re: Retina iPad Display

I wonder if you could use your radiometer to test each layer to see which one(s) is blocking the UV. Maybe it's a layer we could replace. The layers that are blocking the UV are the polarizers. There are non-uv blocking ones, but as far as I know, no ones really tried it out. So I guess the next qu...
by zachnfine
Sat Jan 17, 2015 1:09 pm
Forum: Display Devices
Topic: Retina iPad Display
Replies: 120
Views: 217050

Re: Retina iPad Display

Used a radiometer to see how much power is being lost thru the screen...ultimately A LOT is being lost. So started to see if I could remove anything else, the back of the LCD assembly has a reflective mylar backing. Figured removing that would help...sadly, it didn't. It doesn't seem to have done a...
by zachnfine
Wed Dec 03, 2014 1:36 pm
Forum: Display Devices
Topic: Retina iPad Display
Replies: 120
Views: 217050

Re: Retina iPad Display

A thought on the need for a display controller -- rather than hooking the iPad screen to a displayport-adapter connected to a Mac or a PC with a display port card, maybe the iPad screen could just be controlled by an actual iPad. It'd need to be set to not lock or power down when plugged in, notific...
by zachnfine
Wed Dec 03, 2014 1:12 pm
Forum: Display Devices
Topic: LCD Based 3D Printer - Introduction
Replies: 220
Views: 408609

Re: New Builder - LCD Based 3D Printer - Introduction

Ok, Im just gonna sell the 4 boards to HP and AndersonTa, If you want a PCB dpizzle I can help you out. Only thing is you will need a solder reflow oven to solder the leds to the pcb. I'd be tempted to buy a board if it could be purchased pre-soldered -- I have no reflow oven or experience with suc...
by zachnfine
Tue Dec 02, 2014 10:04 pm
Forum: Display Devices
Topic: e-ink display rather than DLP, Laser, LCD?
Replies: 6
Views: 18528

Re: e-ink display rather than DLP, Laser, LCD?

As far as i know, all e-ink displays are reflective displays. They are not transmissive to light from behind. The panels are opaque. They are all front lit. The ones with the "backlights" are not really backlights, more like edge/front lights. Right you are, I just found this: http://www....
by zachnfine
Tue Dec 02, 2014 9:25 pm
Forum: Display Devices
Topic: e-ink display rather than DLP, Laser, LCD?
Replies: 6
Views: 18528

Re: e-ink display rather than DLP, Laser, LCD?

I know adafruit sells e-ink displays that can be controlled with an arduino... May be cheaper than trying to hack a Kindle. Interesting idea! The reason I was thinking Kindle was twofold --resolution, and that their paperwhite is one of the few e-ink displays that seem to have a backlight, so I fig...
by zachnfine
Tue Dec 02, 2014 9:19 pm
Forum: Display Devices
Topic: e-ink display rather than DLP, Laser, LCD?
Replies: 6
Views: 18528

e-ink display rather than DLP, Laser, LCD?

Since I've retired my LCD projector (Viewsonic Pro8100) for home theater use due to color problems, the natural thing to do was search the net to see if anyone was using LCD projectors to build SLA printers. From what I gather, most LCD panels block too much UV or block too many near-UV frequencies ...
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[phpBB Debug] PHP Warning: in file [ROOT]/vendor/twig/twig/lib/Twig/Extension/Core.php on line 1266: count(): Parameter must be an array or an object that implements Countable