Before you go and suggest I buy a this or a that instead...
That doesn't tell me anything. Is the actual LCD display incapable of showing motion regardless of the electronics driving it? I kind of doubt that since my existing (smaller/older) frame shows motion all the time as it is transitioning between pics, and many newer frames can play mpeg off of USB. So my question was... what electronics are involved in getting the LCD stripped out of a photo frame to show analog composite video?A photo frame is vastly different than showing moving video.
Yes, it is... they have the cheap frame I'm looking at. Your suggestions do me no good, as they are not available to me. But even if they were... the first you suggested we have no idea what the resolution is and the second we have no idea if it has composite in (plus its over $100).walmart is your friend:
I wrote that for a reason, and would very much rather have an answer to my question.
A useful answerThank you Blueteeth.
Considering this is an electronics forum, I'm rather shocked at the prevailing "don't make it - buy it" attitude. If the IC - by far the most expensive part - is "not cheap" at $9... then there's no way the components are going to add up to the $120 to buy an almost-good-enough TV from Walmart. Bottom line... if what I wanted existed at a low enough price, I'd buy it. But it doesn't. Or at least I'm not going to do a $100+ a pop trial-and-error to find out if it does or doesn't.
I bought a 13" LCD tv today from Wal-mart that won't suit my needs, but I wanted to see what kind of circuitry is involved. You guys are blowing it way out of proportion I think. The vast majority of this TV's circuitry (in terms of physical quantity) is converting the 120V ac to the 12v and 5v dc the "guts" require.
The next biggest amount of circuitry appears dedicated to handling the myriad of inputs (HDMI, RGB, Component, Composite, Coax, USB). They all funnel into a series of 3 ICs. I'll have to get out a magnifying glass to identify them as I just can't read the lettering on them... the only thing I can make out is that one of them is by Micrel (oddly enough... same IC maker that made the EL driver I mentioned above).
If things were as complicated as you all are making them out to be... tv's like this wouldn't exist. Yeah, yeah... I know... they're making them by the tens or hundreds of thousands...
Anyway, clearly I'm fighting a losing battle here. I thought I could get assistance from people that might know some answers. I'll try somewhere else.
I have an old LCD display that takes in RGB + compsite sync. It has a seperate PCB which decodes composite PAL to RGB (not a trivial task...).
Actually, that's a pretty easy task - there are loads of different easy to use decoder chips that do almost all of it for you...../ /...A small company a few years later made decoder boxes for them, which took a composite video signal (a still frame) and used a colour TV decoder chip to split it to the separate red, blue and green signals. I've no idea where it is now?, but I suspect it's in the attic somewhere.
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