Have you question why?

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.

How the usual touch glass work

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.

Do you want to support in-depth engineering and technology education? Join the Branch Education community on our Patreon page found here: https://www.patreon.com/brancheducation

We need more engineers throughout the world, and to do that we need better engineering education!

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

Additional Notes

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.