The Intricate Engineering Inside Foldable Smartphones

Have you ever wondered what is inside the hinge in a foldable smartphone? With the release of the Samsung Galaxy Z Flip, and the Motorola Razr, foldable smartphones are becoming more popular, and soon every company will have their own version of a foldable smartphone! In here we explore the engineering inside foldable smartphones.
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Made by Teddy Tablante
Most of the findings and interior elements were done using a teardown from Zack at the channel JerryRigEverything / jerryrigeverything . Much thanks to his hard work at opening up and showing us the details inside smartphones.
Key Branches from this video are: Touchscreen Displays
Erratum:
Animation built using Blender 2.81a www.blender.org/
Post with Adobe Premiere Pro and Adobe After Effects
Sound editing with Reaper
Work Cited:
ALON: www.surmet.com/technology/alon...
Samsung Galaxy Fold: www.samsung.com/global/galaxy...
Smart Glass: www.smartglassinternational.c...
Motorola RaZR: www.motorola.com/us/home
Wikipedia Commons. "Lenovo ThinkPad X1 Ultrabook" from Intell Free Press. "The Nintendo Dsi XL in burgundy" from Evan-Amos. "A Motorola flip phone, open" from Jud McCranie. Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited February, 2020
#FoldableSmartphone #SamsungFold #Engineering

[@BranchEducation]

Would you be interested in a dual-screen smartphone? Edit / Additional details: Over a few iterations of design, the bezel and hinge could be shrunk down. The secondary screen would have a small metal bezel with shock absorption foam to help increase durability. This screen could be made very easily replaceable. This concept was inspired by the phones used in HBO’s West World. This phone would have amazing applications in AR as it can have the display active while the liquid crystal is transparent. Finally, when the 2nd screen is closed, there could be potential for using the 2nd screen and primary screen in a 3D viewing format.

[@Jesse_Carl]

Seems pretty cool to me although the videos of clear screens I have seen so far are not nearly to the level of a production product

[@AnonymousAnonymous-cb8eg]

Great idea

[@HKGoldenMrA]

The dual-screen design is a better design compare to foldable screen, but it maybe more easier to break when it is fallen.

[@tobias7166]

Whats about the new Samsung Foldable ? It now has flexible glass on top

[@dannunes652]

It's cool tech, but all the stuff that needs to work properly seems ripe for failure. Now where are those hologram phones?!

[@JerryRigEverything]

Awesome video man. Your concept phone is way cool. When you get it built, send it on over and ill 'test' it out ;-)

[@BranchEducation]

Thanks JRE! I appreaciate it! For one, it will use actual hardened glass. Also a cylindrical hinge is fairly straight forward in it’s ability to keep out dust. As for a drop test when it is opened, I’m not sure how it will fare, but it’s worth a shot. If one of the companies makes a dual screen phone using a transparent AMOLED display with a liquid crystal layer, I’ll make sure they send one over.

[@awaisjatt1499]

Oh JRE sir love you. 😍

[@nickolazcarters]

idont think its an good idea 🤣

[@awais_sandhu]

Why would he want his dream phone rigged apart. Just kidding man you are great.

[@standupyak]

Hello there

[@Maxtr0sity]

Applaud the amount of effort you put into making these videos. Creating each part, animating, rendering, narrating, seriously impressive. Please keep it up!

[@Raj-tu1bi]

I think it's a great idea but it secondary screen may not last long and most like continuity on screen not like cut in middle

[@puspamadak]

Your concept was really great. I had also thought of something like this, but I didn't have even the slightest idea that an LCD screen can be made opaque electrically. That would be an amazing thing to actually control the overall screen transparency.

[@recklessroges]

Your design is far superior. My primary engineering philosophy is: "It if moves its going to break." So a "foldable" screen is just a screen that is just waiting to break. Your design could, with care last a lifetime. Anyone that has bent a piece of metal back and fourth enough to break knows that anything hard with a crystal structure will break. Anyone that has tried to unfold plastic that has been creased know that you aren't staying inside of its plastic limit.

[@MooseeMcMoose]

I think we should get you in contact with someone at samsung

[@jojolafrite90]

I think they don't care.

[@Nesylver]

Your models are immersive, thoroughly thought out & fascinating

[@PAUNOMOLUSCO]

Brilliant to say the least.

[@Enominext]

Your foldable smartphone concept is genious. Because even if the second screen eventually breaks, it worked at all as protection for the main screen. And its maybe very easy to replace. I just LOVE it!

[@ashkanashrafi8366]

I'm wondering , you have a great awesome and talented team , modeling every single piece is not easy at all youre doin a great job thank you!

[@ANDRES-el5yr]

You are doing a great job, keep going 👊🏻

[@tuannguyentrung8092]

Very easy to understand. Hope for more videos

[@Aditya-wb2uo]

I appreciate your hard work. Well Done.

[@barttablante8495]

Outstanding video… very instructional.

[@brianwilson9501]

I like this video. Very informative, I like how you broke down all the parts of these new foldable phones. Looking forward to new iterations.

[@harinayan4956]

Great idea buddy!!!🤩🤩

[@monish929]

Your concept is amazing, I believe some company should start working on that. Thankyou for making such videos.

[@drankenstein5241]

I'm impressed. Your design is really good

[@davidknapp5224]

Oh so smart and clever but who needs this?! Thanks for sharing, your videos are awesome.

[@HoshangGovil]

Your concept is awesome.

[@mohanjadhav2297]

brilliant work of channel creator. you deserve millions of viewers.

[@kshitizmaurya9179]

Your concept is great

[@thanmayrambr4979]

awesome concept

[@roblo6387]

Your concept is really smart

[@clarcktumazar]

The concept is innovative, but the phone design is very outdated for me But, this is the greatest educational channel in explaining how the device works! You literally dive inside the device just to understand it.

[@spacecat3630]

It's great. Just make sure when the second display is folded upon the first, that it is not to thick, because that would create a noticable distance betwean the surface and the pixels

[@poweronegaming3681]

That's great 🔥🔥🔥❤️❤️❤️

[@AmitabhAnkur]

You should patent your design, it's very inovative.

[@BranchEducation]

Thanks! I’ll consider it, but I’ll probably stick to just making KZbin videos.

[@azeemtics6613]

@Branch Education your idea was similar to my but your is better when ifixt review it

[@sankalpprajapati5992]

@@BranchEducation oh man so kind you are 🥺

[@AkshayShukla.]

my suggestion is that the secondary screen should be on left because most of people are right handed ......... 😁😁😁😁😁

[@faizanahmed653]

@@AkshayShukla. I was thinking the same

[@jayanspaliwal5907]

Man!!!!! Your proposed design would definitely rock.

[@dojostarfox4520]

Did you decide to do anything with your concept phone? I'd actually love to have one with that layout but made so when folded shut there are no protrusions, so including a recession for the folding screen and end caps to the hinge to make it flush.

[@eldhosoy9842]

video was most understanding about the concept

[@TiagoTiagoT]

The transparent screen could be used to add extra color depth to the main screen by lighting it up while transparent; or if it's not flush enough against the main screen, then it could be used to produce something along the lines of a tensor lightfield screen, real holographic display where you see a different image depending on the angle and distance from the screen.

[@ankitkhandelwal426]

Very nice concept 👌👌👌👌👌

[@thanhhainguyen8920]

Your design looks really good and I really appreciate the efforts you put on these videos but I don't think that the second screen has a high durability when it's too thin and mostly made of glass. However, you can use cover the phone using carbon fiber instead of metal and make the second screen as large as as the first screen which I think would make the phone more comfortable to use. Also, you should design two models, one for right-handed people and one for left-handed people as from my view, I think that it's not really comfortable for the right-handed users to use their right hand to surf web on a thin screen which can be easily broken using small force. This is my personal idea so don't judge me. P/s: Sorry if my English is too bad.

[@shawnkerr]

I like your concept. Reminds me of the old flip and slide phones with full keyboards. I loved those phones.😁

[@youcanmakeitpossible5882]

Great idea

[@Ash-td4sx]

Great consept

[@Random_4400]

My god your an absolute genius to design your way of a folding smartphone! wonder if anyone will make it one day because i might buy it

[@thatguycrazy2194]

Ur concept of the folded phone is pretty cool I would love to have that phone

[@soumyendudatta1870]

second one is awesome 👌👌 love this one ❤️❤️♥️ why don't you submit this design to some company to make it real

[@ataa510]

Now that 5 generations have passed, waiting for the updated and how it evolved video !!

[@artificial_intelligence_kenya]

So informative

[@sarangkharul6644]

Awesome idea of secondary screen

[@sumobear1777]

i love the detail you put into your videos. can you do the LEP unit next? i bought one in a flashlight and its like a ray of solid daylight. im hoping they start using them in phones for their flashlight.

[@r.iyushofficial5318]

Good concept

[@davidhrzenjak]

Very nice concept. I like it more than the folding phones on the market.

[@thinkmath7417]

amazing video, great content. sadly not enough views for such a high quality content

[@PaulMarcX]

I really like your concept. My critique would be a darker "normally closed" main screen, as most of a regular user time would be with a folded phone. You could have an option of folding the screen to the back, or just having another screen on the back (but that would be more expensive).

[@ozzypasha459]

wonderful idea, please keep developping.

[@BranchEducation]

Thank you, I will

[@devendrahyalij5724]

Perfect

[@heksdanish]

I love the new voice. Thank you for all the great work.

[@hamzakunwar723]

Samsung as a leading mobile company try to experiment the new thing and the customers want it accordingly so from my point of view your concept is not a eye catching concept for both the samsung and the customers, it already exists the concept of samsung is really different making phone completely tablet but not the ordinary foldable phones🙏

[@vinaymuraliachar9230]

awesome technology

[@Bianchi77]

Vote it up, nice video clip, thank you for sharing it :)

[@anshagrawal8514]

Bro your concept phone ie from future🤯👍👍

[@sreekars3973]

Good idea

[@marianbuduroi6463]

not bad your project, very nice and practice

[@lingampallytejareddy6450]

It's quite innovative

[@countrymusiclover9199]

Brilliant

[@basti_sdtv2694]

This is a very cool mobile you made

[@skinife]

loved the video and the concept phone! You could make a prototype!

[@Limeayy]

more, more!

[@cappedkilla]

Inspitational vid! Samsung needs to employ this guy

[@piyushpatil4679]

Awesome

[@subhadiplayek]

LG's dual display implementation is pretty good.

[@imransiddiquerajput1759]

hi.. sir can you tell me the software name that you are using in animating designing

[@mdggaming1519]

Your design is really smart, it would be like a PC running on 2 Monitors, but in your pocket

[@tanvirfarhan5585]

BEST KZbinR

[@ai-whisperer]

the Huawei mate X styled design application seems much more appealing than 2 screens. ofc the design you propose is ingenious indeed but i would prefer one single screen block as versus multiple split screens.

[@alexdenilak8508]

hi, what kind of tool do u use to make a video for you tube

[@faizi2441]

dude that setup is far more better than galaxy fold u r genius ❤❤❤❤😍😍

[@jayantamahata3269]

Difficult to use Secondary screen in gaming as a barrier comes in middle. Love from India

[@N1lav]

PUBG:- controls and map in Primary display and game running on secondary display.

[@jayantamahata3269]

In Samsung's design you would cover bigger area rather division.

[@N1lav]

@@jayantamahata3269 but a slight over pressure and screen breaks. And add there is no glass so fingers won't slide thereby hindering gaming.

[@barklet6110]

It could be played da style (controls and a info screen on bottom and main game on top)

[@sagarsamrat9964]

Nice idea but when we are using this in a folded way.. its touch latency will be much higher than before which may affects its performance.

[@geethashankar653]

I like you concept super

[@hashali]

Can we do magnetic screens that attach? Like how the apple charger attaches or the apple pen attached to the ipad? The additional screens open up and attach magnetically together. This would look seamless and can allow for say 2 people to connect their phones together and watch on a bigger screen.

[@ananymo]

I really liked your concept. If it's technically possible too make such a foldable phone then it would be nice. The slim secondary screen would make the phone less heavier compared to the current ones.

[@alirezagumaryan8301]

nice working:)))

[@robinwells8879]

I like both concepts. I must say that for me I think that the folding screen is the most exciting innovation in the sector since the original iPhone. I will wait for the tech junkies to pay for the development and perform the beta testing and then you won’t be able to hold me back. The razr style is beautiful. Your concept would have made the Microsoft phone a multitasking world beater.

[@labmasterx5599]

I would actually enjoy this type of phone very much, I hope this design (or something similar) gets to the mainstream market

[@andreicraciun8941]

Your concept is very good. I think that you can integrate a smartphone keyboard also.

[@BspongeB]

Great idea but just uncomfortable to use once secondary screen is open. The hinge should be smaller and slick. Maybe make the top and bottom bezelless on secondary screen. How about a different hinge system, maybe a 180 twist to open (similar to nokia 7705). I would love to see a prototype of your phone.

[@-Steven-]

I've seen the transparent display on a much larger scale from a different channel, they brought a massive TV that had a completely transparent glass screen, and all the electronics were in a box that the bottom of the tv screen sat on which also contained the USB,HDMI and ethernet jack plus various other connectors. the tv itself looked amazing what put me off was the price I think they said it worked out to about $30000, not only that If I remember correctly they had to have the tv imported as it was only available in China when they did the review. of course, I could be completely wrong as I have short-term memory loss, I can remember stuff that happened 20 years ago but have extreme difficulty remembering stuff that happened last week it's so bloody frustrating.

[@rajeswari8777]

can you please tell what material is used to make the foldable touch screen (touch sensor part). i think it won't be indium tin oxide because it is brittle. so what else have they used in samsung fold

[@BranchEducation]

You’re absolutely correct that ITO is brittle. There are some resources that speculate on conductive flexible wires, but to be honest- I don’t know as it is a trade secret.

[@abhishekmattikalli]

This is a great idea but it should be cost effective too.. nice thinking 😀👌

[@abhishekmattikalli]

It should be durable too. Because in case it slip from some certain height the secondary screen could shatter...

[@TheMaxKW]

Dude, you've invented the Microsoft Surface Duo! Nice work! 👌

[@BranchEducation]

Kinda. I think the big difference is that when it is closed, the 2nd screen is transparent, and it operates as a normal smartphone. It’s important when adding a big change that users have the ability to go back to what they were used to. This is one element the samsung fold got right, in the idea of having a 3rd screen on the outside.

[@alexandreung5982]

The most interesting KZbin channel on KZbin. Big fan from France !

[@BranchEducation]

Thank you so much!!

[@jojolafrite90]

Si tu le dit... M'enfin, il rêve, le type.

[@nikilragav]

Cool concept but having to use the main display through the second one will result in a parallax effect because the AMOLED will be farther away from the front glass, and there will be some internal reflection. It will feel like you're using a much older phone. I think it would just be better to flip the second display to the back. Also it would be sick to take advantage of the transparency features of your display design - augmented reality walking directions?

[@AbhinavJhaTechnocrat]

Wow, you made me think why we have never tried it. I like the the idea, but do you think it will be save from fall?. Since it is thin and it totally depends on hing efficiency. If the hing got week then it might cause damage to the secondary screen and even to the code.

[@nathanndruwin1782]

Cool concept.. just to make it cool, if the secondary screen br made semi-opeque I think it will be super cool. Considering that the opacity is electrically controlled, I'm assuming the electricity may be varied to control opacity? Not so sure if that's possible but if it is, I hope to see it work one day. Overall, your videos are of outstanding quality.

[@olliebaksa3309]

That would work

[@jeffvenancius]

Would be cool to have a second screen that could be separated from the main one, you would be able to use it wirelessly to a degree but for real clise conection one could ...attavh on the side, just like the Nintendo switch. This screen would be attachable on the back too, where it could rest. It would also be a great deal to avoid thefts and such, since you'd be able to send messages and use the second screen on the street while the real one would be secure in your pocket

[@michaelesposito2629]

Hold on. So you’re saying all those bullshit see through movie/tv future phones, CAN actually be a thing?

[@BranchEducation]

Yeah, they have transparent screens out right now.

[@ThapeloMKT]

But the AMOLED layer has hardware that's not transparent, motherboard, battery cameras... are not transparent. You're not gonna put them off to the side just so you can see though the your phone, then you'll have something with the bezels of a 1st gen TV.

[@electricx7365]

Yep But Were Only Trying It On Phones Currently P.S It Wasted Enrgy

[@petermarshall1634]

It would be more feasible to make a transparent TV or a window that's actually a screen.

[@TheMadmanAndre]

Transparent displays sound great in theory but are terrible in practice, mostly due to things like contrast and readability.

[@sumantaadhikary2106]

If your concept is applied on any smartphone, then please remove this split screen option. Your thought is most valuable then split screen to work two apps at the same time. Lovely concept. True engineer 😍❤️

[@user-ez7or2qm8m]

Nice phone!I wana this

[@doodlepuddle7500]

Too interesting application......😁

[@deo3333]

Please edu for camera under screen...

[@carsenvillegas7259]

Great

[@vigneshreddyjulakanti7583]

Nice

[@krishnachaitanya9024]

If I was the decision maker, I would definitely implement your idea & that's really cool. I liked your concept. 10 X better than galaxy fold

[@cheri758]

the deising you showed is good but i would prefer having secondary display on left side.

[@spinerocker]

wow!