5 Minute explanation - How does an LCD projector work?

A quick video on how LCD projectors function.
**Please see the links below
LED Matrix (P5)
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LED Matrix (P3)
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D1 Mini (4MB)
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Kynar Wire
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Here is the gear used in the build built -
Tenma ESD Soldering Station
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BAKU PCB Jig
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858D+ Hot Air Reflow Station (Clone, £24)
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Ceramic tweezers
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Solder paste
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Brian Lough- / witnessmenow
The Unexpected Maker - / @unexpectedmaker
David Watts - / mrdavidjwatts
DaveDarko - / @davedarko
Stephen Ludgate - / stephenludgate
Becky Stern - / bekathwia
MKme Lab - / mkmeorg
BlitzCityDIY - / @blitzcitydiy
Martyn Davies - / martyndavies
Jen FoxBot - / jenfoxbot
Sean Hodgins - / @seanhodgins
Hari Wiguna - / hwiguna

[@usamimizuki]

POV: you search this because you can't sleep thinking about this.

[@borayurt66]

Yeah, I knew there was a tiny but high res LCD screen inside, but I always thought it would be a full color one. Never knew about this. Good info. Thanks!

[@AlluringPegasu13]

So it isn't? Does each lcd only show their respective colours? Or they don't have colours?

[@phonvyr]

Thank you Kris. I am watching this video with my IGCSE Computer Science Class. We learned so much and enjoyed your jokes.

[@KrisCochrane]

Ha! Brilliant. Where are you located in the world?

[@phonvyr]

@@KrisCochrane Morocco. I hope you are safe!

[@zxshark8651]

Kris Cochrane it’s weird that you ask people where they are lol

[@KrisCochrane]

Didn't really think it was weird - I was curious as I'd never heard of an IGCSE before.

[@romanyrashed9689]

me too

[@mikebedford8494]

nicely done - showing the splitting of the 3 colours was really good.

[@mikekaye3874]

Enjoy it? I freaking loved it. Finally...in like 5 mins, you explained what most who take 20 and still never fully understood how it was done. I still have some fine detailed questions but wow. Thanks bud. You know what it is, it's the last step, how the three colour separated images are combined into one as it goes to the lens. That's what I would like to see how it's done. This is great. - Toronto, Canada.

[@childscraig]

Cool vid, have never opened one of these, have always wondered how it was done, cheers for enlightening me!

[@maas1728]

Nice explanation bro thanku

[@PRKPHMUHAMMEDAFSERN]

WOW! That was a lovely one. Thank You So Much!

[@saemranian]

Perfect, Thanks for sharing.

[@BRENDAN28]

So how does this project a certain image? So if you get a transparent LCD screen and shine a light at the back of it and then send the screen your image is how it would project it?

[@Ziggerzzz]

Why can't they use a single rgb lcd ? Heat maybe

[@korishan]

I imagine it's due to density. After all, they are taking a 2 inch (thereabouts) screen and turning it into 16 ft. If they incorporated all the leds into 1 screen, the resolution wouldn't be as sharp. With this method, each pixel truly is 1 pixel, not 3 separate pixels that are so close together they look like one on a small scale. Blow that up onto a huge screen, you'd probably see each of the 3 led pixels. That's my best guess at the moment.

[@malcolmhollett8638]

Cool vid

[@samuellin9217]

Excellent explanation

[@WhoFlungPoo2024]

Best explanation I've seen to date and nice and simple! Good work, Mate!

[@budiononfs2117]

Thanks for the great explanation

[@okapinoodlepiper5417]

Thanks for the video

[@KrisCochrane]

No worries!

[@lalmuanpuiamizo]

First. Yes their optic arrangement is always fun to play with. Are they polarized?

[@waynestewart1919]

That was great. So they are just monochrome LCDs with the light filtered coming to them. {Admires Scottish accent realizing it actually helps in attention as-well-as retention.}

[@whitigir5019]

So better light source and better panels will make a better projector ?

[@sugiyarti9409]

please explain about the polarization of light hitting the lcd panel... why is there no or very few youtube channels that discuss it why?? because it is useful for those who want to repair the damage to the projector..because without polarization 3 lcd will not work

[@verndexter]

THIS IS SO COOL!!!

[@nexus1g]

"Now of course we don't want to just watch blue footage..." *_Picasso has left the chat._*

[@davelongworth361]

I'm going to make an led conversion, any tips?

[@ludiezhu5314]

Would you please tell me what company and brand of projector is used in this video, I want to buy one to do some experiments，thanks 。

[@theempowerer5718]

he said it was an old Mitsubishi

[@dharan.5285]

I have a Cannon LV-7265, there is a background flicker of red but no red on the image. What can i do here?

[@trendyprojectors4743]

But general people can't understand the circuit board you shown.... the person needs to be tech savvy...

[@NehemiahDC]

So there isn't a tiny bird making shadow puppets and saying "It's a living"?

[@NautilusCrypto]

Love the accent!

[@PhoxUwU]

great video! just so you know though, green is not a primary colour ;)

[@KrisCochrane]

You're right!

[@MuhammadYaseen-vx5hw]

video is heart touching. but some problems having with my projector so please can i write a email to you? for resolving them.

[@sebdouse6970]

People invented this...what