The orderly beauty of liquid crystals

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! ↓
---------------------------------------­----------------------------
LINKS:
French version: • Les cristaux liquides ...
Subscribe to the channel : / thelutetiumproject
Follow us on Twitter : / theluproject
Visit our website: www.lutetium.paris/en
---------------------------------------­----------------------------
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
---------------------------------------­----------------------------
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
---------------------------------------­----------------------------
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
---------------------------------------­----------------------------
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/
---------------------------------------­----------------------------
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/

Пікірлер: 68

  • @Tehn00bA
    @Tehn00bA2 жыл бұрын

    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!

  • @ZeranZeran

    @ZeranZeran

    Ай бұрын

    Wait.. I keep all my backgrounds as just pure black because I thought it was better for energy consumption, wow. Thank you!

  • @batzlat1
    @batzlat13 жыл бұрын

    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!

  • @jamescooney8712
    @jamescooney87122 жыл бұрын

    This video is absolutely incredible. That was so informative and well presented!

  • @chandankunal
    @chandankunal3 жыл бұрын

    Awesome work! Super well explained. I always look forward to your videos!

  • @davidzamora4654
    @davidzamora46543 жыл бұрын

    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.

  • @thirandieamaratunga7278
    @thirandieamaratunga7278 Жыл бұрын

    Wonderful work! Helps understand a complex concept in a simple, intriguing way.

  • @samuelcarvalho3691
    @samuelcarvalho36913 жыл бұрын

    Outstanding Video. This video ought to have more views and this channel ought to have more subscribers!

  • @geckolantern
    @geckolantern Жыл бұрын

    This video is incredibly clear and concise. Thank you!

  • @FabienCharles108
    @FabienCharles1089 ай бұрын

    Fantastic video!!!

  • @waleolapo
    @waleolapo3 жыл бұрын

    Thank you for the thorough explanation

  • @jagroopkaur9877
    @jagroopkaur98773 жыл бұрын

    Well explained and presented👍

  • @parimisreekar
    @parimisreekar2 жыл бұрын

    Lucid and accessible presentation. Helped with introduction to LC polymers.

  • @JizzontheToilet
    @JizzontheToilet2 жыл бұрын

    this is really intesteresting. You presented it really well, probably would have taken 3 college classes to grasp what you did in 8 minutes.

  • @lelsewherelelsewhere9435
    @lelsewherelelsewhere9435 Жыл бұрын

    Really great video!! Going to use this as my go to when explaining to others.

  • @user-th7fb2pg9q
    @user-th7fb2pg9q8 ай бұрын

    Good en well explained thanks

  • @I_am_Rathore
    @I_am_Rathore3 жыл бұрын

    Amazing video and presentation...Thumbs-Up

  • @salmagamal5676
    @salmagamal5676 Жыл бұрын

    Very very well explained thank you!

  • @omsingharjit
    @omsingharjit2 жыл бұрын

    It feels Awesome watching your presentation

  • @khareldn
    @khareldn2 жыл бұрын

    It really helped a lot! Thank you.

  • @Hammelkottlett
    @Hammelkottlett3 жыл бұрын

    Now I understand! Fantastically explained! But where did you get that brezel? :D

  • @gegedepardi3486
    @gegedepardi34862 жыл бұрын

    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 !

  • @tejaswibhagavatham4226
    @tejaswibhagavatham42262 жыл бұрын

    Crystal clear explanation thank you for making this video 🤝

  • @racheledominguez308
    @racheledominguez3083 жыл бұрын

    Great video!

  • @upisewingbyupeksha675
    @upisewingbyupeksha6752 жыл бұрын

    Thank you for that explain 💝

  • @kateyelkovan
    @kateyelkovan3 ай бұрын

    this video is so cool

  • @kelvianmularso2587
    @kelvianmularso25872 жыл бұрын

    Cant agree no more, really easy to understand, thanks

  • @newgoogleaccount3526
    @newgoogleaccount35262 жыл бұрын

    Came from LTT, great explanation in one video.

  • @kchemistry1268
    @kchemistry12683 жыл бұрын

    So nice information

  • @Skylerfi
    @Skylerfi3 жыл бұрын

    Maybe it's worth talking about different types of liquid crystals? Say ionic liquid crystals, etc etc

  • @thenoodlesaresoggy3728
    @thenoodlesaresoggy37282 жыл бұрын

    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.

  • @leonardodeangelis4403
    @leonardodeangelis44036 ай бұрын

    You deserve more subscribers

  • @virtuallysarvad
    @virtuallysarvad Жыл бұрын

    Such a good explanation. Sad that you'll stopped uploading :(

  • @almominrafi5505
    @almominrafi55053 жыл бұрын

    well concept sis

  • @IshvaraIsOne
    @IshvaraIsOne3 жыл бұрын

    Top video!!!

  • @itzanonmoose8328
    @itzanonmoose83283 жыл бұрын

    Good stuff.

  • @pukegirl
    @pukegirl8 ай бұрын

    I'm tripping balls great video

  • @cristianconstantin6496
    @cristianconstantin64962 жыл бұрын

    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)

  • @TheLutetiumProject

    @TheLutetiumProject

    2 жыл бұрын

    Thanks! But we stand by what we put in the video... Splay is a simple divergence, like on the schematic on the left.

  • @cristianconstantin6496

    @cristianconstantin6496

    2 жыл бұрын

    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

  • @Kram1032
    @Kram10323 жыл бұрын

    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 :)

  • @TheLutetiumProject

    @TheLutetiumProject

    3 жыл бұрын

    Thanks for the feedback! The video had been uploaded for weeks in HD. We're all really puzzled that KZread 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?

  • @Kram1032

    @Kram1032

    3 жыл бұрын

    @@TheLutetiumProject ok that sucks. Really weird. Don't think I caught one before

  • @Elias-Liv

    @Elias-Liv

    3 жыл бұрын

    i just watched it at 1080p

  • @charwyrm8702
    @charwyrm87023 жыл бұрын

    Comment for the algorithm, really good stuff guys!

  • @sanyamsapra1853
    @sanyamsapra18532 жыл бұрын

    Wow amazing video 👍👍👍😀😀😀

  • @ehsanayar7859
    @ehsanayar78593 жыл бұрын

    Excellent

  • @yaghiziad1034
    @yaghiziad10342 жыл бұрын

    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 ?

  • @Papa91echo
    @Papa91echo2 жыл бұрын

    I was going to buy a monitor and now I'm here.

  • @konradkow
    @konradkow2 жыл бұрын

    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. ✌️😊💛

  • @meadasy9939
    @meadasy99393 жыл бұрын

    my mind now go buff!!

  • @AddisonJamesHoward
    @AddisonJamesHoward2 жыл бұрын

    what could cause this type of effect to show up on film monitor?

  • @QWERTZUUZGFBXHJHFFVJJGCC
    @QWERTZUUZGFBXHJHFFVJJGCC Жыл бұрын

    💖valubal inform mam 💖

  • @AntiheroYouth
    @AntiheroYouth Жыл бұрын

    4:55 Not sure implying I’m going to disappear or my defects will disappear. Both are true, I guess.

  • @Movieclip.s589
    @Movieclip.s5897 ай бұрын

    God of physics is here 😍

  • @jiachiye1226
    @jiachiye12263 жыл бұрын

    3:39 : I dont'd understand, sees like the polarization of the incident beam didn't change at this direction. Why "completely different"?

  • @davidzamora4654

    @davidzamora4654

    3 жыл бұрын

    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.

  • @spockspock
    @spockspock2 жыл бұрын

    I, myself.. like both of these phases... am uncertain.

  • @o1ken_ez
    @o1ken_ez11 ай бұрын

    im watching this on an LED display

  • @Weisz
    @Weisz2 жыл бұрын

    Ltt gang

  • @kevinkinnu341
    @kevinkinnu3412 жыл бұрын

    Great for lizard cloaking holograms 🦎

  • @outrospection4all
    @outrospection4all3 жыл бұрын

    great video, would be better without the music

  • @sollinw
    @sollinw2 жыл бұрын

  • @rustycobalt5072
    @rustycobalt50723 жыл бұрын

    _Ze french liquid baguette huhuh_

  • @televisaoassassina9822

    @televisaoassassina9822

    3 жыл бұрын

    deh amerikan burgerberg lmaolmao

  • @vezzosetto
    @vezzosetto3 жыл бұрын

    Fantastic video!