How Do Touchscreens Work? hd mobile technology

by alsaCEMusic

We use touchscreen displays for hours every day, but do you know about all the intricate layers and components that make them work? This episode goes into the structure and basic function of a touchscreen display. What goes into making toughened glass strong, how do capacitive touchscreens work, and how do OLEDs work? The merging of these technologies is what arguably makes the smartphone what it is! Take a look and learn more.

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Table of Contents:
00:53 The Layers
01:35 Section 1: Toughened Glass
03:18 Section 2: Capacitive Touchscreen
05:07 Section 3: OLED Display
07:18 Section 4: Summary
07:48 Section 8: Outro

Key Branches from this video are: Multitouch, Electric Fields, Capacitors, OLEDs, LCDs, Material Transparency, Interface Aesthetics

Made by Teddy Tablante

Addendum & Erratum
LG Prada Predated the Iphone. LG Prada was released announced December 12th 2006 and sales started in May 2007.

5:43 Most smartphones use a pentile subpixel layout which is 2x Green for 1x Red and 1x Blue.

7:25 1Pixel = 1G+1B or 1G + 1R. Thus the latest phones are closer to 6.67Million itty bitty lights.

See sub-pixel details here:

Animation built using Blender 2.79b
Post with Adobe Premiere Pro and Adobe After Effects
Sound editing with Reaper

Work Cited:
Wikipedia contributors. “Touchscreen.” , “OLED.”  Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, August 30th, 2018

3M Touch Technology Brief. (2013). “Projected Capacitive Technology” 

Varshneya, A.K., Bihuniak, P.P. (2017). Cover Screens For Personal Electronic Devices: Strengthened Glaass or Sapphire. American Ceramic Society Bulletin Vol. 96, No. 5

Blankenbach Karlheinz. (2014). “Organic Light Emitting diodes (OLED).” Pforzheim University, Germany.

Images of Cellphones acquired from Wikimedia Commons. “HP150” , “Motorola DynaTAC 800x” ,”Appled Newton”, “IBM Simon”, “Nokia 1610”, “Nokia 3310” , “Ipod [1]” , “Blackberry 5810”, “Motorola Razr”, “IPhone [1]”  Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, August 30th, 2018

Freudenrich, Craig PH.D. (2014).” How OLEDs Work”

Music Attribution in Order:

Morning Dew from YouTube Audio Library

Plaidness from YouTube Audio Library

Water Lillies from YouTube Audio Library

Marxist Arrow by Twin Musicom is licensed under a Creative Commons Attribution License

Sunburst, Tobu & Itro is licensed under Creative Commons Attribution License

Car and character models acquired from Blender Market

#Touchscreen #Smartphone #HowDo .

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How Do Touchscreens Work?

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Branch Education 28/12/2021 - 6:05 Chiều

I'm wondering whether you all think the content is too in-depth or there are too many details. What are your thoughts?

rajesh Gupta 28/12/2021 - 6:05 Chiều

How lapto works

Merabet Abdenoure 28/12/2021 - 6:05 Chiều

I don't think that I'm gonna anything with anybody

Carol aka John 28/12/2021 - 6:05 Chiều

My protective phone glass after putting it into my bag: ha you didn't drop me or anything, BUT, I will have a crack >:)

Vidyabhushan Soni 28/12/2021 - 6:05 Chiều

Nice lecture TKQ. V much

Shadley Booi 28/12/2021 - 6:05 Chiều

Yeah no id rather loose my phone than my laptop and car keys also thank you for the content its brilliant as always

Yahia gadouche 28/12/2021 - 6:05 Chiều

Thank you

Ritika Bhandari 28/12/2021 - 6:05 Chiều

The animation is amazing

Inservio 28/12/2021 - 6:05 Chiều

Screen : enormous Android phone separating in layers, revealing LG logo on battery
Narrator : "Steve Jobs brilliant marketing"

Owais Shaikh 28/12/2021 - 6:05 Chiều

Excellent work

DropD1 28/12/2021 - 6:05 Chiều


:D :D 28/12/2021 - 6:05 Chiều

Absolutely amazing video! Though one question: Why exactly do the sodium ions migrate outwards when in heated potassium nitrate solution?

First Last 28/12/2021 - 6:05 Chiều

Smart screen can interact with electric glove that is used to transmit the coordinates of the hand and the fingers to the screen this way ..a smart phone can write and even speak the language of people who can.t hear or speak..

agonimus212 212 28/12/2021 - 6:05 Chiều

how does your phone/ar know at what angle you're holding your phone

Durgesh Srivastav 28/12/2021 - 6:05 Chiều

Wowww Very well explained

Unstop 28/12/2021 - 6:05 Chiều

Oh wow this is a really nice video. Exactly what I was looking for.

Harbored 28/12/2021 - 6:05 Chiều

3 years later and exactly what i've been looking for. Took a couple vids but the consistency in quality is staggering and i'm subscribed and ringing the bell! Bravo!

CMC5961 28/12/2021 - 6:05 Chiều

Well explained, thank you!

JakkuWolf Insomnia 28/12/2021 - 6:05 Chiều

The level of ingenuity required for this small device is truly worthy of one of the greatest technological advancements the world has ever known

Rixtronix LAB 28/12/2021 - 6:05 Chiều

Nice video clip, keep it up, thank you for sharing it 🙂

The SUN 28/12/2021 - 6:05 Chiều

1:35 an ACTUAL explanation!

To much fun with gas 28/12/2021 - 6:05 Chiều

No, I knew I was holding a major pain in the ass.

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Aurora 28/12/2021 - 6:05 Chiều

Who comes up with this shit

Jenny 28/12/2021 - 6:05 Chiều

i was just constantly impressed throughout the video

sayed nadaf 28/12/2021 - 6:05 Chiều

I tried to touch my screen with other conductor like fuse wire but it doesn't work.. why??

Justin 28/12/2021 - 6:05 Chiều

Your analogies are like things that don’t taste good; awful.

JohannStuff 28/12/2021 - 6:05 Chiều

Now everytime i look at my phone i can't stop thinking "Man. These are being displayed by millions of tiny lights"

Sehejpal Singh 28/12/2021 - 6:05 Chiều

I really appreciate your videos buddy its highly knowledgeable can you tell me which software you use for making these great videos

Land Caster 28/12/2021 - 6:05 Chiều

Losing physical buttons you can type without looking is tradgic too. It’s like if you constantly had to look at your keyboard while you type.

Chadason McGraw 28/12/2021 - 6:05 Chiều

Actually, I hated Smart Phones originally. They were stupid, dull, and lacking true innovation. I wanted them to fail. Than the Note 2 came out… I never could look back… now I have a Z Fold… never looking back again.

LUCID_ 28/12/2021 - 6:05 Chiều

And just end up getting smashed by kids

Christian Svendsen 28/12/2021 - 6:05 Chiều

While this older one was good, I can tell that the last three years' increase in quality and depth of information is an immense effort and a major step-up.

Not only compared to your old self, but compared to the online educational environment in general.

4inksempire 28/12/2021 - 6:05 Chiều

Your videos are what i have searched for. So Informative!

VYNE SHINDEN(MC) 28/12/2021 - 6:05 Chiều

Can anyone telk me what the outro song name is?

uri25 kmister 28/12/2021 - 6:05 Chiều

Thanks for solving one of my greatest mysteries I haven’t understood

Unique Side 28/12/2021 - 6:05 Chiều

I always see your video for Your slowly voice!!!!!!!!!!!!!!!!!!!!!!

COBOL 28/12/2021 - 6:05 Chiều

bro I legit watched this in class like 2 he's ago I guess youtube wants me to watch it again

JK Hoyumpa Anque 28/12/2021 - 6:05 Chiều

Watched your Mouse video and immediately thought I wisehd this channel discussed touch screen.


AI Totem 28/12/2021 - 6:05 Chiều

I definitely prefer the deeper voiced speaker

Cole Eichele 28/12/2021 - 6:05 Chiều

This is actually insane

Rocksfir e 28/12/2021 - 6:05 Chiều

could use less bias towards Apple.
the first i-phone wasn't even the first touchscreen display. the tech dates back decades before then.

An Meme 28/12/2021 - 6:05 Chiều

That was even more than I was asking for, this video is awesome!

Ganesh Lamichhane 28/12/2021 - 6:05 Chiều



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