Internal structure of a liquid crystal or LCD TV screen

In this episode the internal architecture of a liquid crystal display found in LCD TVs is discussed. The design of this type of screen requires an assembly of different parts such as polarizing filters, liquid crystal, electronic circuits and color filter.

[kentslocum]

The thing that blows my mind is that the circuitry to control each pixel is placed behind the liquid crystal, yet is transparent enough to let the light through. How can they print circuits that small? Seems like magic to me.

[baldpipesmoker]

It's amazing how thin screens can be made. 🤯

[FYMFTP]

Fantastic video. I learned a ton! I had no idea that's how an LCD worked. Thank you for sharing.

[MarineElectrical]

I have no words how much I would like to thank you!

[chamanlaldewangan]

Your video, animation and explanations are awesome.

[AnsariElectronics]

Great video. Always learn something new from your videos thanks for your effort. God bless you

[thedistinguished]

if theres a vertical and a horizontal polarizing filter, what else passes through that makes the screen not black? if they block everything?

[noreezy]

not everyone understands the point of the capacitive structure. the point is that the E-field in the (idealized) infinite flat plane capactior that is created by this structure induces torques on the nematic liquid crystal aggregates (through the capacitor's electric field interacting with the dipole of the molecules, in the most simplistic basic idealized approximation obviously, everything "neat and nice and clean" and capable of being modeled with 1st year university calculus, lol). In practice, the important control input is the switching of the capacitors. A tremendously critical part of LCD development has been the capacitor "cell" optimization, and less about things like the light source (which is almot 100% of the focus in OLED research)

[nbursese]

Amazing video. Thank you very much for this information.

[NishanthSalahudeen]

2:01 you say cholesteric have twisted structure and Nematic have common orientation, yet no structure. Then in 2:14 you said Twisted Nematic is used in displays. Why take unstructured Nematic and do something (like anchoring layer) to twist it when cholesteric is already twisted? thats one question. second question is ... you said there is no layerwise structure in Nematic. then how come when you use the anchoring layer, the successive layers of moleculeas further and further away from the anchoring layer tries to align with the first layer right next to the anchoring layer? without this aligning tendency, there would be no twist. so TN have aligned layer or not?

[mrvloga]

Thanks for best description about led tv internals structure

[alannemeth]

Wow I never dreamed it looked like that, thanks.

[nativetravellerdeepak]

इस वीडियो के माध्यम से मार्गदर्शन करने के लिए धन्यवाद बड़े भाई

[saa]

Thank you very much. I hope to get more beautiful videos

[crineuic]

why does the liquid crystal make a pattern when it leaks

[aceselectronicsrepair]

Good day Sir
pls. can you explain why the lcd screen turn to double image & flickering image thank you & God-bless

[selvakannanselva]

Sir please explain the panel fault like double image why that happened what is the possible solution and how long it will work after service

[AnsariElectronics]

I have request to you plz make a deatail video about the detail and working of COF. Thanks❤️

[GmoSerran]

Hello, I'm trying to create some electronics to test the LCD hub, but it is hard since they have a camera and microphone. Do you have any idea how to do this, something to test the LCD hub, backlight, microphone, and camera

[abcabdi]

Wow! interesting & Very well Expressed.