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How Do Touchscreens Work?

Оценок: 26214 | Просмотров: 941506
Ever wonder how your finger can magically control your smartphone screen? We explain in this episode of SciShow. Hosted by: Michael Aranda ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Accalia Elementia, Kathy & Tim Philip, Kevin Bealer, Justin Lentz, Fatima Iqbal, Thomas J., Chris Peters, Tim Curwick, Lucy McGlasson, Andreas Heydeck, Will and Sonja Marple, Mark Terrio-Cameron, Charles George, Christopher Collins, and Patrick D. Ashmore. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://gigaom.com/2013/07/10/the-metal-coating-that-makes-iphones-touch-sensitive-is-running-out/ http://www.ti.com/lit/an/slyt209a/slyt209a.pdf http://large.stanford.edu/courses/2012/ph250/lee2/docs/art6.pdf https://www.newhavendisplay.com/app_notes/TPcompare.pdf https://www.sparkfun.com/datasheets/LCD/HOW%20DOES%20IT%20WORK.pdf http://www.microchip.com/design-centers/touch-input-sensing/touch-screen-and-touch-pad-controllers/technology/analog-resistive http://arstechnica.com/gadgets/2013/04/from-touch-displays-to-the-surface-a-brief-history-of-touchscreen-technology/ http://www.gtouch.com.tw/products_panels_pcap.html http://large.stanford.edu/courses/2012/ph250/lee2/docs/art6.pdf
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Текстовые комментарии (1216)
Akshay Patil (3 дня назад)
Does touchscreen sensitivity decreases on a capacitive touchscreen when too much pressure is applied on it by human hand/fingers?
Md Tafsirul Haque (12 дней назад)
After watching this video when I touched the screen I was trying to feel some electric current
vilsta studios (26 дней назад)
My Samsung Galaxy s5 when I wear gloves on The touch screen still works!
Sahil Mambilly (1 месяц назад)
How do waterproof touchscreen works? Don't they get confused between water and our finger as an input??
super elite pro (1 месяц назад)
Thank you.
Samuel Bomorse (1 месяц назад)
He dyes his beard.
Gabriel C.V. (1 месяц назад)
What is that thing on his chin?
Ectos (1 месяц назад)
Touchy subject
50,000 Subs with crappy vidoes? (2 месяца назад)
When i put water dropplets on my phone it goes crazy
Eufemia Vieira (2 месяца назад)
tx so much very comprehensive explanation
manish billur (2 месяца назад)
Can't relate I'm watching this on my keypad handset
pyroawsome (2 месяца назад)
A type of touch screen I have used is an old IBM one for their cash registers. It works by having a vertical and horizontal laser grid with sensors, and when you disrupt the grid, it knows an x and a y to click. Its neat, if a bit bulky and prone to error.
Ibtesam Sorab (2 месяца назад)
Very good video but please go a bit slow
Ivan Barišić (3 месяца назад)
Dude, nice video, but way too fast for me
Seth Jansson (4 месяца назад)
Sucks for those who don't have conductive energy lol...
Moses Gamboa (4 месяца назад)
Im watching this in nokia
Nitzney Mann (4 месяца назад)
How about those screens that can detect air-blow? How...?
asan mohamed (4 месяца назад)
thanks for this video ... my questions that if touch using by any conduct material..its should be work right... but i tried operate to the screen by conducting material like bold screw its dosn,t works..
nazeer hussain (4 месяца назад)
i once opened my cell phone with egg shell it works don't knw why n how
Ramila Ramthy (5 месяцев назад)
Yu told me that the display screen having two parts one is with flexible by that we have to touch exactly x and y..and now my doubt is what about the temper
Varietygirl1 (5 месяцев назад)
Why do touchscreens not seem to work when my hands are really cold?
Sathyam Devellers (5 месяцев назад)
2018???? Anyone . Read more
Chrstphre Campbell (5 месяцев назад)
Not at all clear !
Three Aon (6 месяцев назад)
Your Hand, Need a Better Gesture Train. But Thank You.
Ladyrina (6 месяцев назад)
This is really useful. Thanks!
Gianna Hayes (6 месяцев назад)
What about using a plastic bag? If you put your phone in a plastic bag the touch screen still works. Can someone please explain how?
Leni Rosos (6 месяцев назад)
thanks so much! i needed this for my ks3 physics!
Shruggz Da Str8-Faced Clown (6 месяцев назад)
So, as the saying goes (typically in reference to electrocution), "we're completing the circuit"?
Saswot Tripathy (6 месяцев назад)
What if a insect sits on the screen?
Mohammad Adnan Khan (7 месяцев назад)
But glove mode increase the sensitivity of a smartphone!! 😉
ram prakash (7 месяцев назад)
What abt stylus ?
Abbi Zeiger (7 месяцев назад)
One time I couldn't use my touch screen phone when my fingers were really cold. It would not go.
loki (7 месяцев назад)
Watched the whole video , still don't know how do touchscreen work !!
WOODEN WORLD (7 месяцев назад)
Hi can you plzzz say me how you edit your vidios
Sly simon (7 месяцев назад)
Im looking for a way to simulate touch screen that can control with a device like a raspberry anyone out there know
suresh carpenter (8 месяцев назад)
why the hot water freezes faster than cold water
Random Chaos (8 месяцев назад)
I have a Sony xperia z3+ it has Heat Detection. So if there is salt or water on the screen it doesent sense it butwhen your warm finger touches it it registers.
Pip Squek (8 месяцев назад)
Im makin a pen for my phone now..
AppleDevice Help (8 месяцев назад)
SciShow:how does touchscreen works Me:it works with hand
ReVo (8 месяцев назад)
Bruh my phone works with any gloves...
J Dial (8 месяцев назад)
Short, sweet, and informative....
Jdm Love (8 месяцев назад)
Does it work on a dead body finger
SIngh (8 месяцев назад)
A really big opportu ity you missed was tl tall about how galaxy s5 touch screen touch sensatovoty can be increased: allowing to use almost any glpves or pencils and pens to uae the tpich scree .
Logan Simon (8 месяцев назад)
Fascinating!
Charu Sahu (9 месяцев назад)
And I thought they detected heart beat!
collin dee (9 месяцев назад)
wait the what about screen protectors. if iPhones us capacitive screens why does my iphone work with a layer of plastic above.
Nurlan Ildirimli (9 месяцев назад)
Good Information! Thanks!
Ky'Reese Davis (9 месяцев назад)
I drooled on my phone and it pressed a button....
tuna G (9 месяцев назад)
I actually feel good about myself.
GenericGeorge (9 месяцев назад)
Why do rubber stylus' still work?
Macrobot Aurora (9 месяцев назад)
Basically tons of microscopic colorful sensors that react to smooth surfaces and are organized in layers and lines.
Giovanni Paraizo (9 месяцев назад)
If you use hidrophobic sprays on touchscreens,would the touch screen work underwater?Or it will be the same result?
you like jazz? (9 месяцев назад)
Or waching youtube
captainrobots (9 месяцев назад)
I got a pokemon go ad.
Jan Rosovic (9 месяцев назад)
Pls change intro song
Random Weirdo (10 месяцев назад)
I’m just sitting here tapping my phone screen
Cole Wof Wof (10 месяцев назад)
Can't.. Stop.. Watching!
seanie huffels (10 месяцев назад)
im using a tablet to type this comment so im basicly typing this on a touchscreen :)
Ruby Rowan (10 месяцев назад)
so is that why my switch wont recognise a plastic stylus but it does with my finger?
arjun krish (10 месяцев назад)
Great
Ishaan Bansal (10 месяцев назад)
So are phones bionic tech
12345 678910 (10 месяцев назад)
my dell touchcreen is cracked
Goldenfire Fox (10 месяцев назад)
NOW I KNOW WHY I CANT MOVE IT WHEN I WEAR GLOVES......
Oldpizza inyourcar (10 месяцев назад)
thanks bro
Cartooon THAT (10 месяцев назад)
this is good. thank you man
Just some comment channel (11 месяцев назад)
how is babby formed
Science Freak (1 год назад)
Superb video awesome one
trigga777777 (1 год назад)
With this same technology we can incorporate it to what can be the skin of a AI robot that way it can't feel like we do
Jovan Sanchez (1 год назад)
Why do stylist have to be dull to work.
Snoopy Jenn (1 год назад)
I have nerve issues in my extremities. After having a nerve conduction study done on my muscles i learned that my muscles dont produce much electricity. Is this why sometimes my numb fingertips don’t seem to make the connection i am trying to make on a touchscreen?
Tymongo (1 год назад)
explains why i can write this with a knife
Christine Realubit (1 год назад)
j2k how to make a phone
Bob Treduis (1 год назад)
My dogs use tablets lol. (Using a tablet for this comment :) )
playyboy nyc (1 год назад)
shouldn't you be at a corner deli buying beer and cigarettes
hellio ringos (1 год назад)
You're so direct to the point, just as how I would explain it, I subscribed and liked it 😊
saravanan sarou (1 год назад)
Does touchscreen current cause harm to humans..?
tenacious645 (1 год назад)
People love saying humans are stupid, but I'm often baffled by how clever human inventions have become. Figuring out electricity started a massive revolution, but from simple circuits of DC power, to AC power, to cathodes and diodes, onward to transistors and microchips it's incredible. And that's only the beginning 0.0....If you have taken the time to learn about how transistors work, I encourage it. It's impossibly clever and without them cell phones wouldn't exist.
Nut screw gamer (1 год назад)
I subscribed and turned on the notifications and don’t forget to see my channel
Nut screw gamer (1 год назад)
I subscribed and turned on the notifications and don’t forget to see my channel
Xistence Studios (1 год назад)
I don't get it ? Then why does my 100$ Chinese smartphone work with regular gloves???
Abhay Rajkarnikar (1 год назад)
why doesn't touch work if we hold a metal use the metal to touch the screen?
MavHunter20XX (1 год назад)
I don't know what to do with my hands
Oscar Cerro Quiles (1 год назад)
Who on Earth sweats like THAT!? (see 2:53)... *remembers Airplane!* nevermind... BTW, My fingertip hurts already for so many tapping and slidding on my smartphone, well, more like they got very sensitive despite I always tap softly. I know you said at 2:28 that the electricity doesn't flow through the finger, but my fingers tell a really different story after 2 years of constantly using my smarthphone...
Get LIT (1 год назад)
But I'm still waiting for touchscreen which is BONELESS!
tru jay (1 год назад)
you speak very fast for me still i try to learn something by pausing , rewinding and playing wait for the end ohh i get it, thanks..
Joey Henry (1 год назад)
Bread can activate touchscreens
Jonathan Devillier (1 год назад)
Haha he looks like Seth McFarland
jim nohj (1 год назад)
killed it
Twitch's Powerful Stand (1 год назад)
i wrote this with my touch screen
Luis Prado (1 год назад)
What are the health benefits of eating ass?
Luke Johnson (1 год назад)
I guess that's why my phone sometimes responds to a touch even though I just hover my finger over it.
Hurricane800 (1 год назад)
the future is here
utsav tailang (1 год назад)
you're making a part of electronics work
Rayyan Mamaril (1 год назад)
he's cute
Rishav Bhowmik (1 год назад)
All touch screens works through cloth .
Jack Warren (1 год назад)
tx for the info i always wanted to know how does touch screen work
Jaren Cascino (1 год назад)
So that's why only touch works on smart phones
Joseph Yang (1 год назад)
why does my touchscreen still work when I'm wearing these nitrile work gloves?
Latin Hope (1 год назад)
But I have a screen plastic protector how is this even conductive?
Dzrian (1 год назад)
why issit that i can even 'touch' even when i didnt even touch the screen only like 1 mm away from the screen

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