The orderly beauty of liquid crystals
ฝัง
- เผยแพร่เมื่อ 12 มิ.ย. 2024
- They're in everywhere in our screens, but what are liquid crystals? 🖥️ How are they liquid? Or crystalline? In this video, we discover the colourful physics of ordered fluids!
↓ More infos and links in the description! ↓
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LINKS:
French version: • Les cristaux liquides ...
Subscribe to the channel : / thelutetiumproject
Follow us on Twitter : / theluproject
Visit our website: www.lutetium.paris/en
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RELATED PUBLICATIONS:
Patrick Oswald, Pawel Pieranski, Nematic and Cholesteric Liquid Crystals, Gordon and Breach (2000),
bit.ly/3dov4ne
Bill Hammack, LCD Monitor Teardown on the engineerguy channel (2011)
• LCD Monitor Teardown
Announcement of the Nobel Prize in Physics 2016,
• Announcement of the No...
Teresa Lopez-Leon, Les cristaux liquides : quand l’ordre et le désordre se rencontrent, groupe Traces video (in French, 2017),
• Les cristaux liquides ...
Julien Bobroff, Microscope Polarisant, La Physique Autrement video (in French, 2016),
• microscope polarisant
Sophie Norvez's lectures on liquid crystals at ESPCI Paris
Teresa Lopez-Leon's introductory seminars/lectures on liquid crystals at ESPCI Paris
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STRUCTURE OF THE VIDEO:
00:00 What's a liquid crystal?
01:36 Elasticity of liquid crystals
02:00 Liquid crystals and polarized light
03:21 Birefringence
04:12 Liquid crystals in a polarizing microscope
04:56 Liquid crystal displays
06:09 Liquid crystals and topology
07:18 Conclusion
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CREDITS:
Host:
Julie Godefroid
Director:
Hoon Kwon
Writer:
Guillaume Durey
Science supervisor:
Teresa Lopez-Leon
Animator:
Benjamin Alardin
Sound mixer:
Valentin Zorgnotti
Editor:
Guillaume Durey
Studio, visual identity:
Juliette Nier
Theme music:
Pierre David
Production:
Guillaume Durey, Mathias Kasiulis, Quentin Magdelaine
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ACKNOWLEDGEMENTS:
Collective Effects in Soft Matter team, Gulliver laboratory,
www.ec2m.espci.fr/home/
Paul Boniface, Espace des Sciences Pierre-Gilles de Gennes, for his valuable advice,
www.groupe-traces.fr/membre/p...
Alexandre Darmon, former PhD student in the Gulliver lab, for his video of a phase transition in cholesteric liquid crystal shells.
artinresearch.com/
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The Lutetium Project is a PSL students’ initiative conducted as part of IDEX ANR-10-IDEX-0001-02 PSL and funded by:
PSL Research University - www.univ-psl.fr
ESPCI Paris - www.espci.fr
Espace des sciences Pierre-Gilles de Gennes - www.espgg.org
ESPCI Alumni - espci.alumni.paris
Fonds ESPCI Paris - www.fonds-espci-paris.org/
5:40 that finally explains why dark mode/black screens consume more energy than white screens in LCD (while its the opposite on led). I knew that LCD used more energy when displaying black because my gameboy battery light would turn red everytime a black screen appeared, but never knew why. Great video!
Wait.. I keep all my backgrounds as just pure black because I thought it was better for energy consumption, wow.
Thank you!
I've watched dozens of videos on how LCD displays work. Only now, after watching this video, did I really understand it! Great video, thanks!
This video is absolutely incredible. That was so informative and well presented!
Awesome work! Super well explained. I always look forward to your videos!
Wonderful work! Helps understand a complex concept in a simple, intriguing way.
C'est une approche très théorique et universitaire des cristaux liquides, un petit show des différentes interfaces des années 60, utilisant les cristaux liquides aurais apporté une petite approche ingénieur au sujet. Surtout que niveau ingé lcd avant le pixel c'est très "cru" très visuel comme technologie. C'est plus simple que nos lcd d'aujourd'hui on peu les décortiquer et apprendre comment l'ingénieur à adapter les cristaux liquides sans notre tendance à miniaturiser. Je critique parceque la vidéo est quasiment parfaite c'est incroyable. Trop trop fort la qualité, la maîtrise du sujet, tout est carré. C'est vraiment de la vidéo de qualité félicitations !
Amazing video. I would like to watch another video on different liquid crystals or even taking a little depper understanding of the ones you showed us.
absolutely incredible how much i learned from this low-key video. everybody should see this. i'm talking core curriculum.
This video is incredibly clear and concise. Thank you!
Outstanding Video. This video ought to have more views and this channel ought to have more subscribers!
Thank you for the thorough explanation
Really great video!! Going to use this as my go to when explaining to others.
Well explained and presented👍
this is really intesteresting. You presented it really well, probably would have taken 3 college classes to grasp what you did in 8 minutes.
Fantastic video!!!
Lucid and accessible presentation. Helped with introduction to LC polymers.
Very very well explained thank you!
Amazing video and presentation...Thumbs-Up
this video is so cool
Good en well explained thanks
It feels Awesome watching your presentation
It really helped a lot! Thank you.
Came from LTT, great explanation in one video.
Great video!
You deserve more subscribers
Maybe it's worth talking about different types of liquid crystals? Say ionic liquid crystals, etc etc
Cant agree no more, really easy to understand, thanks
Crystal clear explanation thank you for making this video 🤝
So nice information
thank you, thank you so much! I've had trouble understanding what's up with liquid crystals. Thankfully, I found this! Saved me from a lot of probable breakdowns.
Good stuff.
Top video!!!
Thank you for that explain 💝
We are the liquid crystal being vibrating with energy 💦💎🧘 And I am starting to understand how this is being naturally and artificially influenced in us. Thank you for the lesson.
✌️😊💛
Wow amazing video 👍👍👍😀😀😀
well concept sis
Comment for the algorithm, really good stuff guys!
Excellent
Great video, you explained the concepts very well and the animations were right on point.
I have to point out a mistake at 1:54 - the Bend configuration is the one on the left and the Splay configuration is the one on the right, as per Peter Colling's book Liquid Crystals
(Edit: I was wrong because of misinterpretation)
Thanks! But we stand by what we put in the video... Splay is a simple divergence, like on the schematic on the left.
my apologies, I misinterpreted your bend image and you are definitely correct. It all comes down to how the orientation of the director changes with position
Now I understand! Fantastically explained!
But where did you get that brezel? :D
4:55 Not sure implying I’m going to disappear or my defects will disappear. Both are true, I guess.
Such a good explanation. Sad that you'll stopped uploading :(
Lovely video, very interesting! Simply explained and informative.
Could you, for the future, try leaving more time between upload and premiere? 'cause it feels a little silly to watch the premiere in 360p when you could come back a couple hours later and it'd be HD :)
Thanks for the feedback! The video had been uploaded for weeks in HD. We're all really puzzled that TH-cam decided to cap the resolution during the premiere at 360p. We have no idea why! Have you watched other premieres on the channel by any chance? If so, did you witness the same issue for other videos?
@@TheLutetiumProject ok that sucks. Really weird.
Don't think I caught one before
i just watched it at 1080p
I was going to buy a monitor and now I'm here.
💖valubal inform mam 💖
my mind now go buff!!
How do we get 256 different shades of color on a subpixel ? Does the liquid crystal change the intensity of the light that passes through aswell ?
God of physics is here 😍
what could cause this type of effect to show up on film monitor?
I'm tripping balls great video
3:39 : I dont'd understand, sees like the polarization of the incident beam didn't change at this direction. Why "completely different"?
I have the same question. I don't know if it has to be with, let's say, a quantitative value for the interaction of the light with the molecule. It's not the same when is travelling parallel to the longest direction, than when it's perpendicular.
I, myself.. like both of these phases... am uncertain.
Ltt gang
im watching this on an LED display
Great for lizard cloaking holograms 🦎
great video, would be better without the music
_Ze french liquid baguette huhuh_
deh amerikan burgerberg lmaolmao
Fantastic video!